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Low Voltage Electrical Safety Policy - Library

1. Q Polarity satisfactory RCD operation if applicable Rated residual operating current l mA and operating time of ms at isn PART 4 Declaration I We CERTIFY that the said works do not impair the safety of the existing installation that the said works have been designed constructed inspected and tested in accordance with BS 7671 1992 IEE Wiring Regulations amended to and that the said works to the best of my our knowledge and belief at the time of my our inspection complied with BS 7671 1992 except as detailed in Part 2 PEE Signature eain Ed eS POSION RE Date o eite enin mE 33 APPENDIX 3 4 of 5 PERIODIC INSPECTION REPORT FOR AN ELECTRICAL INSTALLATION REQUIREMENTS FOR ELECTRICAL INSTALLATIONS BS 7671 IEE WIRING REGULATIONS DETAILS OF THE CLIENT Client C L AGOIOSS 3283 Purpose for which this Report iS required treten eren tete tede ter t dea dn e d e rue a a ERR DETAILS OF THE INSTALLATION hos as appropriate joel M instalation Pec E M Domestic Commercial Industrial bd age of the Electrical Installation Not
2. Earthing arrangements Number and Type of Live Nature of Supply Parameters Supply Protective Conductors Device Characteristics TN C a c d c Nominal voltage U U Type TN S 1 phase 2 wire Nominal frequency f TN C S 2 phase 3 wire Prospective fault current Ip S phase OMS Nominal current IT 3 phase 4 wire rating Alternative source of supply to be detailed on Note 1 by enquiry 2 by enquiry or by measurement attached schedules External loop impedance 2 Means of Earthing Maximum demand Amps i a Details of installation Earth Electrode where applicable Supplier s facility Type Location Electrode resistance to earth e g rod s tape etc Installation earth electrode conductor material 2s connection verified Main equipotential bonding brs material eigen connection verified ing water and or gas service To other elements three reni manoir nr EHE Main Switch or Circuit breaker P and No of poles Current Rating A Voltage rating V M RE Fuse rating or setting Rated residual operating current lan mA and operating time of ms at lan applicable only where an RCD is suitable and is used as a mai
3. Work on Cables Before any work is commenced on any cable it shall be made dead earthed and either i positively identified by physically tracing from the source of supply by either tracing or signal injection or ii spiked by an Authorised Person using an approved type of cable spiking device For work on High Voltage cables a Permit to Work shall be issued in accordance with the procedure for work on High Voltage Installations 4 8 2 Overhead Lines Where work is to take place near overhead lines the Authorised Person should seek advice from representatives of the local Electricity Supply Authority before giving any recommendation Portable Electric Equipment Recording All portable equipment other than approved exceptions shall be given a unique number which shall be recorded in a register giving details of the equipment including date tested and date next test due The item of portable equipment shall be marked to indicate it has passed the test and when the next test is due Power supply leads including extension leads flexible leads fitted leads and separate leads which plug into portable electrical equipment i shall be of the correct type and rating for the portable equipment used ii Where practicable supply leads shall be placed so as to avoid mechanical damage Where the cable is vulnerable to damage additional precautions such as flexible armouring protective braiding or superior forms of she
4. Operational Management See also section 4 3 of this document authorisation Employee Responsibilities The duties placed on the employee are equivalent to those placed on the employer in situations which are in his her direct control Employees must not put themselves in danger as a result of their lack of competence to carry out the tasks they are attempting Employers are responsible for the safety of themselves and others at the place of work It shall be the duty of every employee while at work To comply with the provisions of the specified statutory regulations so far as they relate to matters within their control To co operate with the employer through the management and supervisory staff so far is necessary to enable the employer to perform on and comply with the provisions of the Electricity at Work Regulations 1989 To undertake work in connection with electrical systems only where competent to do so Appreciate the dangers involved in the work being undertaken Recognise when such dangers are present Undertake and implement safe working practices which remove the danger Understand the different types of injury which could occur if the working methods used are faulty or ineffective Receive sufficient first aid training so as to treat injuries caused by contact with electricity and electrical plant and machinery REMEMBER NEVER WORK ON ELECTRICAL SYSTEMS UNLESS YOU HAVE RECEIVED THE NECESSARY TRAINING HAVE THE A
5. be sent to the successful contractor with the official order to do the work and to any contractor on request A site access control arrangement shall be set up which shall require contractors to report their presence on a day to day basis Before the commencement of work on any electrical system the Employers nominated site representative shall inform the appropriate Employers Authorised Person who shall specify the safety measures to be adopted by the contractor Where any danger to be avoided is under the control of the Employer the Employers Authorised Person shall in appropriate cases issue a Permit to Work to the contractor in respect of the work using the Service Isolation Permit to Work Where any danger to be avoided is to be placed under control of the contractor the Contractor shall appoint a Contractors Authorised Person The Contractor shall be satisfied that the Contractors Authorised Person possess such technical knowledge or experience to avoid danger or where appropriate injury Prior to handover the Employers Authorised Person shall completely isolate the section of the system on which the Contractor is it work The means of isolation and point of isolation shall be known to the contractor The Contractors Authorised Person shall then be required to sign a Site Safety Agreement a copy of which shall be handed to him her 19 4 7 4 7 1 vii viii xi Should it be necessary to change the Contract
6. words shall have the following meanings Where shall is used in this Safety Policy with no qualifications this indicates a mandatory requirement with no discretion permitted and no judgement to be made Reasonably Practicable Where a statement is qualified by the words reasonably practicable a slightly less strict standard is imposed It means that an assessment must be made considering on the one hand the magnitude of the risks of a particular work activity or environment and on the other hand the cost in terms of the physical difficulty time trouble and expenses which would be involved in taking steps to eliminate or minimise these risks The greater the degree of risk the less weight that can be given to the cost of measures needed to prevent that risk Authorising Engineer low voltage A Chartered Engineer with appropriate experience or an Incorporated Electrical Engineer who possesses the necessary degree of independence from local management and is appointed in writing by management to implement administer and monitor the safety arrangements for the low voltage electrical supply and distribution systems of the organisation to ensure compliance with the Electricity at Work Regulations and to assess the suitability and appointment of candidates in writing to be Authorised Persons Authorised Person Charged An individual appointed in writing who in the opinion of an Authorising Engineer has sufficient technical know
7. The Medical Physics Department will specify a Trust standard for extension leads to be used for Medical Equipment Where there is a significant risk of electric shock when using extension leads for non clinical activities and it is not reasonably practicable to use a step down transformer or battery operated equipment the use of a Residual Current Device RCD should be considered A risk assessment should identify the most appropriate control measures PATIENT VISITORS PORTABLE EQUIPMENT In some circumstances electrical equipment may be used on the University Hospitals Leicester premises which belongs to members of the public eg rehabilitation patients and or other patients requiring facilities not otherwise provided In such cases the equipment must be visually inspected and tested by trained staff in order to prevent the risk of danger to others Da A record of the equipment checked should be kept together with test results The equipment should under no circumstances be used until these checks have been carried out HIRE EQUIPMENT All equipment hired or leased from reputable companies should have been tested prior to issue A test certificate should therefore be obtained and a copy retained in Estates Department or by those hiring the equipment Loans of Medical Devices are dealt with by the Medical Physics Department EXEMPTIONS amp RESPONSIBILITIES Electro medical equipment maintained by the Medical Physics Department and
8. apparent This inspection has been carried out in accordance with BS 7671 1992 IEE Wiring Regulations as amended Cables concealed within trunking and conduits or cables and conduits concealed under floors in roof spaces and generally within the fabric of the building or underground have not been inspected NEXT INSPECTION I We recommend that this installation is further inspected and tested after an interval of not more than months years provided that any observations requiring urgent attention are attended to without delay DECLARATION INSPECTED AND TESTED BY MEI ERR IE Ihre For and on behalf ERE PEOR eiie PT REESE 34 APPENDIX 3 5 of 5 SUPPLY CHARACTERISTICS AND EARTHING ARRANGEMENTS boves and enter detalls as appropriate Earthing arrangements Number and Type of Live Conductors Nature of Supply Parameters Supply Protective TN C Nominal voltage Device Characteristics TN S 1 phase 2 wire 2 pole Nominal frequency f TN C S 2 phase 3 wire 3 pole 3 phase 3 wire other Prospective fault current Ip kA 3 phase 4 wire External loop impedance Z Q Nominal current rating Note 1 by enquiry 2 by enquiry or by measurement PARTICULARS OF INSTALLATION REFERRED TO IN THE REPORT 1 20 and enter details as appropriate Means of Earthing Details of Installation Earth Electrode where applicable Supplier s faci
9. for the hazardous area Part 5 5 1 5 2 5 3 Fire Protection Equipment for Electrical Equipment Fixed automatic equipment i ii Before work is carried out in any zone protected by automatic halon carbon dioxide or other chemical extinguisher equipment the automatic control shall be rendered inoperative and a notice to this effect firmly attached to the control point The automatic control shall be re commissioned immediately after the protected zone has been vacated Precautions taken to render the automatic control inoperative shall be noted on the document issued for work in the protected zone Portable Extinguishers i ii Portable water or foam fire extinguishers shall not be used on electrical equipment unless such equipment has been made dead Portable extinguishers which may be used on live equipment shall be readably distinguishable from all other types of extinguishers General 24 After the discharge of halon carbon dioxide or other chemical extinguishing equipment in an enclosed space the space shall be thoroughly ventilated before entry Suitable breathing apparatus shall be worn if entry is necessary before the gas has been cleared Part 6 List of Supporting Documents a The Electricity at Work Regulations 1989 b H amp S E Booklet HS R 25 Memorandum of Guidance on the E A W Regs 1989 c H amp SEGS 6 Avoidance of Danger from Overhead Electric Lines d H amp SEGS 24 Electrici
10. shall be reported through the appropriate reporting procedure All reports shall then be submitted to the Authorising Engineer Failure of Supply During failures of supply all equipment and circuit conductors shall be regarded as being LIVE until ISOLATED and shall checked with a potential indicator Telephone or Radio Messages All messages relating to switching operations shall be written down and read back to the sender Where the message relates to work which is the subject of Safety Documents the essential details should be recorded in the Log Book and also the written message shall be retained and inserted in the Operational Procedure Manual section 9 Safety Poster Where persons are at a greater risk from electric shock Treatment for Electric Shock posters shall be displayed e g main switch rooms and sub stations Posters displaying abstracts from the electrical safety rules may also be provided at these locations as a reminder of the requirements of the Regulations Emergency Resuscitation and First Aid All persons working on LV electrical systems and those who may be required to exercise them must receive proper training and regular practice Admittance to Sub Stations All sub stations shall be kept locked when unattended If a sub station contains both LV and HV electrical equipment which is not segregated access is only allowed providing The person is accompanied by a HV Authorised Person or HV Competent Per
11. Date August 07 UHL s full policy on Low Voltage Electricity Safety is on the DMS reference number B27 2006 Page 2 of 2
12. E Wiring Regulations High Voltage HV the existence of a potential difference rms value for ac normally exceeding 1000 volts ac between circuit conductors or 600 volts between circuit conductors and earth Part 3 3 1 3 1 1 3 1 2 Responsibilities Employer Management Responsibilities Itis the responsibility of the Chief Executive to ensure that arrangements are in place to enable the University Hospitals of Leicester NHS Trust to comply with all relevant statutes Managers of the University Hospitals Leicester NHS Trust have under the requirements of the Health and Safety at Work Act 1974 and the Electricity at Work Regulations to ensure so far as is reasonably practicable the following are adhered to a b Provision of adequate information supervision and instruction to ensure that work with electrical systems can be carried out safely Provision of a safe place of work including adequate working space access and lighting The design and purchase of new equipment and extensions to existing equipment and extensions to existing electrical systems shall be carried out by persons with the appropriate technical knowledge experience and understanding of current regulations standards British or Harmonised European and established Codes of Practice All items of Electrical Equipment shall be selected to take account of the environment in which they are to be installed used All new electrical insta
13. In areas departments such as ICU Theatres X ray where danger is likely to be caused to patients permission for isolation must be obtained from the relevant departmental manager id Where the point of isolation cannot be positively identified then all departments which may be affected must be informed Every possible effort must be made to minimise the time circuits are off during the identification process This may involve the use of additional staff and or two way radios etc Acceptable methods of isolation are 2a Disconnection from supply Apply safety lock and Do Not Operate Notice 2b Removal of solid links These shall be retained by the person doing the work or locked away 2c Removal of fuse links These shall be retained by the person doing the work or locked away in lockout cabinets The fuse base should be taped over and marked with date and persons name and a Do Not Operate Notice 2d Operation of circuit breakers Where lockout is not possible the MCB should be taped over and marked with date and persons name and a Do Not Operate Notice 2e Operation of switch fuses 2f Operation of isolators 3 The electrical equipment conductors should be proved dead using an approved voltage testing device which itself has been tested on a known voltage source immediately prior and following its use 4 Where live conductors exist in the zone of work screening or other approved means of 43 preventing danger from inadequ
14. O USE THEIR OWN PORTABLE ELECTRICAL EQUIPMENT ON SITE Patient request to use their own portable electrical equipment on UHL premises The Nurse in charge of the ward should assess Repeat each time the patient care impacts of using the equipment the Patient is admitted to the Hospital Approved as suitable to Not suitable to use use in the patient in patient area environment NOT APPROVED Forward for test and or inspection by Competent Person i e Facilities Serco or Approved Contractor Highlight any requests as urgent if they involve Patient care privacy amp dignity DDA issues Pass Test amp Inspection Nurse in charge of ward requests approval for use in clinical environment from Infection Control Medical Physics where appropriate Failed Test amp Inspection NOT APPROVED Nurse in charge of ward informs patient of any significant hazards and restrictions in relation to where the equipment can be used 61 STAFF GUIDANCE FOR THE USE OF PORTABLE ELECTRICAL EQUIPMENT Definition for Portable Electrical Equipment Electrical equipment that is fitted with a plug has a lead cable and which is normally moved around or can be moved around from place to place e g vacuum cleaners kettles heaters fans televisions desk lamp and extends to electrical equipment that could be moved e g photocopiers computers extension leads radios and portable medical equipment Generic Risks These are generally l
15. PPROPRIATE EXPERIENCE AND HAVE BEEN AUTHORISED TO UNDERTAKE THE WORK 10 Part 4 4 1 4 2 Electrical Safety Arrangements Electrical Safety Rules For All Employees It shall be the duty of all persons under the control of the employer to comply with these rules i Only employees who are competent shall carry out work on electrical systems and equipment Portable Electrical Equipment ii iii Each Directorate where they are the owner user should have procedures in place to ensure that portable electrical equipment is Subject to the appropriate schedule of test and inspection electrical safety is promoted as part of the provision of information or training arrangements are in place for staff to report defects aregister of portable electrical equipment is maintained including the location of such equipment Portable electrical equipment and portable electrical medical equipment should be purchased to conform to the applicable BS or European Standards It should include an appropriate rated lead which has been pre fitted with a plug amp fuse The equipment and lead should be checked and inspected as follows a a 1 All non medical electrical equipment should be appropriately tested and inspected by a competent person e g Facilities SERCo Approved Contractor prior to being brought into use and a record of test inspection maintained shall be tested and inspected by a Competent Person
16. Portable electrical equipment brought onto Trust premises for use by the patient should be approved for use in the clinical environment by the Nurse in charge of the ward subject to the equipment and any associated leads being checked for electrical safety by Facilities SERCo The Nurse in charge of the ward should ensure that the patient is made aware of any restrictions relating to the use of the equipment e g where it can be plugged in not to leave trailing leads to switch off equipment after use and any local rules for use etc The Nurse in charge of the ward should consult with the medical physics department to identify any potential interference to medical equipment from personal portable electrical equipment used on site by the patient Infection Control may also be required to provide approval in cases referred by Clinical staff Staff Electrical Equipment Personal Electrical Equipment As above for Patient Electrical Equipment but substitute Nurse in charge of ward with Line Manager Risk Reduction Local mains electrical supply and those who come into contact with the equipment can be protected by the use of an RCD Residual Current Device or 110v transformer The Facilities Department or the UHL H amp S Team can advise on request Section three of this policy is also published as a separate guidance note under the heading of STAFF GUIDANCE FOR THE USE OF PORTABLE ELECTRICAL EQUIPMENT 60 PATIENT REQUEST T
17. Regulation 14 of the Electricity at Work Regulations 1989 which states No person shall be engaged in any work activity on or so near any live conductor other than one suitably covered with insulating material so as to prevent danger that danger may arise unless a It is unreasonable in all the circumstances to be dead and b Itis reasonable in all circumstances to be at work on or near it whilst it is live and c Suitable precautions including where necessary the provision of suitable protective equipment are taken to prevent injury It is the Employer s policy objective to suitably cover all exposed live conductors Live functional testing may be considered when it has been decided it is not practicable to carry out the test with the conductors electrically dead Subsequently repair work must be carried out with the equipment rendered electrically dead No person shall work alone on or near live equipment or cables with the exception of testing at Distribution Boards and control panels Only tools in a sound condition and preferably which are insulated shall be used Rubber gloves and rubber mats shall also be used Where current transformers are installed in conjunction with auxiliary apparatus or test equipment in no circumstances shall the secondary winding be open circuited whilst the primary winding is still electrically live Distribution Switch rooms Switch rooms are to be kept free of all obstruction e
18. TORATE LOW VOLTAGE SYSTEMS LOCAL RULES FOR PROCEDURES ASSOCIATED WITH ELECTRICITY AT WORK REGULATIONS AND HTM 2020 LOW VOLTAGE SYSTEMS 38 LOCAL RULES INDEX LR1 LR2 LR3 LR4 LR5 LR6 LR7 LR8 LR9 LR10 LR11 LR12 LR13 LR14 LR15 Safety Precautions and Procedure for work on Low Voltage Systems Procedures for Live Functional Checking Procedure for Dead Working Procedure for Live Working Temporary Electrical Installations Acceptance of Electrical Equipment into Service Test Equipment and Tools Electrical Installation Works Use of Metallic Access Equipment Additional Precautions for work on Generating Plant Additional Precautions for work on Battery Installations BMS Control Cleaning and Relamping Procedure Portable Appliance Testing Planned Maintenance 39 LR1 SAFETY PRECAUTIONS AND PROCEDURES FOR WORK ON LOW VOLTAGE SYSTEMS INTRODUCTION General 1 Except where no practical alternative exists all work on low voltage electrical equipment including conductors shall be carried out while such equipment and conductors are dead isolated from all services of supply earthed if circumstances dictate necessary and where steps have been taken to prevent their re energisation In situations where it is considered essential by an authorised person in order to ensure a safe system of work the dead working permit procedures are to be used If electrical e
19. UNIVERSITY HOSPITALS LEICESTER NHS TRUST DIRECTORATE OF FACILITIES LOW VOLTAGE ELECTRICAL SAFETY OPERATIONAL POLICY Including ELECTRICAL SAFETY RULES amp LOCAL RULES FOR WORK ACTIVITIES ON LOW VOLTAGE SYSTEMS AND EQUIPMENT HTM 2020 amp STAFF GUIDANCE FOR PORTABLE ELECTRICAL APPLIANCE SAFETY APPROVED BY Policy amp Guideline Committee TRUST REF B27 2006 DATE APPROVED 10 July 2006 POLICY CO ORDINATOR Glyn Lambley Senior Statutory Compliance Manager REVIEW DATE July 2007 CONTENTS SECTION 1 ELECTRICAL SAFETY POLICY Pages 1 37 INCLUDING ELECTRICAL SAFETY RULES Definitions Part 1 Policy Statement Part 2 Definitions Part 3 Responsibilities 3 1 Employer Management Responsibilities 3 1 4 Compliance with Statutes 3 1 2 Managerial Responsibilities for Electrical Systems 3 1 3 Temporary Electrical Installations 3 1 4 Personnel 3 1 5 Appointment of Duty Holders 3 2 Employee Responsibilities Part 4 Electrical Safety Arrangements 4 1 Electrical Safety Rules for all Employees 4 2 Electrical Safety for Portable Electrical Equipment 4 3 Authorisation 4 4 Safe Working Procedures 4 4 4 Work Activities 4 4 2 Protective Equipment 4 4 3 Cutting off Electrical Supplies 4 4 A Cutting off Supply 4 4 5 Isolation 4 4 6 Safe Working Systems 4 4 7 Live Working 4 5 Safety Documents 4 6 Contractors Working on Trust Sites 4 7 Generating Plant and Batteries 4 7 4 Work on Generating Plant 4 7 2 Commissioning of mobi
20. UNIVERSITY HOSPITALS LEICESTER NHS TRUST HTM 2020 ELECTRICAL SAFETY CODE FOR LOW VOLTAGE SYSTEMS DUTY HOLDERS TITLE Designated Person Authorising Engineer Authorised Persons Competent Persons Named Persons APPOINTEES R Pinsent David Hargreaves A Powell M Owen N Clark All Electricians Electrical Contractors Mechanical Engineers Mechanical Supervisor Building Officers Semi skilled Trades persons Boiler Operatives 27 front original Safe to work permit Number Complete precisely and legibly in BLOCK CAPITALS Appendix 2 1 of 3 Serial Location Part 1 Issue Issued to I hereby declare that it is safe to work on the following low voltage electrical equipment which has been made dead and isolated All other electrical equipment is dangerous to work on The points of isolation are Note fix caution notices always use safety locks and obtain visible break if reasonably practical Danger notices and or screening of live parts are in place at the following points Is automatic fire protection rendered inoperative If yes state conditions for restoration Presence of any other hazards and precautions taken e g fire extinguisher on site etc The following works shall be carried out N A No other work shall be carried out Authorised Person Signed Time Date Note
21. Y that the work for which I we have been responsible is to the best of my our knowledge and belief in accordance with BS 7671 amended date except for the departures if any detailed as follows Details of departures from BS 7671 as amended Regulations 120 02 120 05 The extent of liability of the signatory is limited to the work described above as the subject of this Certificate For INSPECTION AND TEST of the installation Date seen Name IN BLOCK LETTERS sese Inspector NEXT INSPECTION I We the designer s recommend that the installation is further inspected and tested after an interval of not more than 31 APPENDIX 3 2 of 5 PARTICULARS OF SIGNATORIES TO THE ELECTRICAL INSTALLATION CERTIFICATE Designer No1 Name ai COMPANY esanian Dati i eben a e c e dea Address iet iare pne meten ER POSICOQ6G Tel NO Designer No 2 if applicable Name ans Company Address eeeeeeeeeeeeee nennen nnne AQ Postcode Constructor Name COMPANY ede ete AHORRO Address aee ette ete tere Pede Postcode VONE Inspector Name COMPANY Side acc deat P Address ete E POSICOQG anciennes TOUNO auci annie e epu SUPPLY CHARACTERISTICS AND EARTHING ARRANGEMENTS Tick boxes and enter details as appropriate
22. ailed as follows Details of departures from BS 7671 as amended Regulations 120 02 120 05 The extent of liability of the signatory or the signatories is limited to the work described above as the subject of this Certificate DESIGN of the installation Where there is mutual responsibility for the design Designer No 1 Designer No 2 FOR CONSTRUCTION I We being the person s responsible for the construction of the electrical installation as indicated my our signature below particulars of which are described above have exercised reasonable skill and care when carrying out the construction hereby CERTIFY that the construction work for which I we have been responsible is to the best of my our knowledge and belief in accordance with BS 7671 amended date except for the departures if any detailed as follows Details of departures from BS 7671 as amended Regulations 120 02 120 05 The extent of liability of the signatory is limited to the work described above as the subject of this Certificate For CONSTRUCTION of the installation CHR Date Name IN BLOCK LETTERS essen Constructor FOR INSPECTION amp TESTING I We being the person s responsible for the inspection amp testing of the electrical installation as indicated by my our signatures below particulars of which are described above have exercised reasonable skill and care when carrying out the inspection amp testing hereby CERTIF
23. all computer equipment maintained by the IM amp T Directorate is not subject to inspection and testing co ordinated by the University Hospitals Leicester Facilities Directorate or SERCo In addition equipment used by outside Trusts or academic agencies is their responsibility to undertake or organise test inspections as necessary The user department is responsible for ensuring that staff and others are provided with portable electrical equipment which is safe to use and has been tested and inspected to an appropriate schedule 58 LR15 PLANNED MAINTENANCE TO PROVIDE COMPLIANCE WITH EAWR Portable Appliances Schedules Inspection Acceptance Test Yearly Formal Visual Inspection and test or more frequently dependent on environment and use Up to four Yearly Test for lower hazard electrical equipment such as Display Screen Equipment reference HSG 107 Maintaining Portable and Transportable Electrical Equipment published by the Health and Safety Executive Fixed Equipment Relevant fixed equipment will be visually inspected and checked during the periodic planned preventative maintenance programme Lightning Conductors Eleven monthly test and inspection in accordance with appropriate BS ACOP Test results recorded Main electrical earths Annual inspection and test in accordance with BS ACOP Test results recorded Distribution boards master control panels etc Annual thermographic survey with full defect report sup
24. ate contact should be utilised Where equipment includes alternative power supplies from un interruptible sources or generating equipment Additional precautions shall be taken to prevent inadvertent back feed voltage on the system Notices shall be affixed at all points of isolation in addition a danger notice shall be displayed where reasonably practicable for any adjacent live conductors equipment within the zone of work If the nominated person carrying out work is reliant on other persons to make dead a formal safe to work permit must be issued by the authorised person Where the work involves the disconnection of electrical conductors the person carrying out the work shall prove dead using an approved voltage testing device which itself has been tested on a known voltage source immediately prior and following its use Where work is to take place on low voltage cables made dead and more than one cable takes the same route the cable to be worked on must be clearly identified by the person making dead 44 LR4 PROCEDURES FOR LIVE WORKING Live working other than that specified under procedure for live functional checking will normally only be undertaken where all possible alternatives have been considered and eliminated When this condition applies and live working is deemed essential it will require specific written authorisation in the form of a live working permit issued by an LV authorised person Where work is to be car
25. athing shall be necessary In wet conditions elastomer insulated and sheathed cables are recommended iii Temporary joints repairs on flexible leads are not permitted Mains operated portable equipment used outside the building All portable equipment operating at a voltage exceeding 110v ac nominal 55v to earth shall be supplied via residual current device RCD with a maximum rated tripping current not grater than 30mA at a rated speed of no greater than 30mS Regular planned Inspection and Testing 22 Regular planned inspection and testing is required which shall include after ensuring that electronic circuitry is protected the following a b Protective earth bonding Insulation C Leakage current In addition attention shall be paid particularly to the following d e Accessibility of live parts Correct connection of power supply leads detachable and non detachable and continuity of the protective earth conductor Note detachable supply leads shall be marked to verify they have passed the electrical test and to identify when the next test is due since these may not remain with any one piece of equipment Absence of a protective earth conductor in a detachable supply cord with athree pole mains connector The connector at the equipment end of the power supply cord Any such cord should be removed from use and destroyed Damage to power cords or to strain relief Overheating or poor c
26. ays which do not give rise to danger This covers the whole range of work which may be carried out whether electrical or not The duty of employees to comply with the Electricity at Work Regulations applies to all work activities without exception and includes work to an electrical system from which danger could arise The Regulations must be followed so far as is reasonably practicable Protective Equipment Equipment provided to protect those working on or near electrical equipment must be a suitable for its intended use a b maintained in good condition c properly used 16 4 4 3 4 4 4 4 4 5 4 4 6 4 4 7 Cutting off Electrical Supplies If an electrical system is to be made safe for work the electrical system should be isolated and locked off thus careful and correct identification of switches is necessary As well as switching off the person working on the system must ensure that the supply is not restored whilst he she is at work therefore there must be a system of isolation Cutting off Supply Every electrical installation will have a mains position where switches can be used to cut off supply to the required part of the installation In small installations it may be necessary to either remove a fuse or operate a circuit breaker to provide the cut off On larger installations the switch required may be remote from the area being worked In this case it may be necessary to withdraw a fuse or to switch a ci
27. conforming to these requirements or which are home made are strictly forbidden Test meters general Other test instruments not used for live testing and or test connection via 13a plug shall have leads of a suitable standard for the test undertaken Before use all such leads should be physically inspected for signs of damage or deterioration In addition all test equipment is subject to an annual calibration by an independent body Tools Dead Working In circumstances where the total installation is dead suitable good quality tools should be used at all times Inferior quality tools however may have brittle insulation handles they may also be manufactured from soft metals or not be properly dressed to remove sharp edges Live Working Where live working is necessary it is imperative that tools specifically designed for live working shall be used These tools should be marked with quality standards ESI26 3 issue 2 1984 IEC Technical Committee 78 EDF ST Specification Technique No 1 France VDE 0680 2 Part 2 W Germany or BS 2559 Pt3 1973 49 LR8 ELECTRICAL INSTALLATION WORKS Any installation work should be carried out by competent tradesmen in full compliance with the current IEE Wiring Regulations On completion of the works and prior to normal use the following applies 1 Electrical tests carried out in accordance with IEE Wiring Regulations Test results to be recorded 2 Completion certificate to be obtaine
28. d completed for works including new circuit 3 Minor works certificate to be obtained completed for works involving modification to existing circuit 4 Circuit identification chart to be updated 5 Electrical installation drawing to be provided include new works 6 Maintenance contract s and or revenue budgets must be in place 50 LR9 USE OF METALLIC ACCESS EQUIPMENT Metal steps ladders and scaffold shall not be used for access in the direct vicinity of live electrical equipment Whenever possible wood or fibreglass steps and ladders should be used When scaffold or metallic platforms are required all electrical equipment within reach must be isolated 51 LR10 ADDITIONAL PRECAUTIONS FOR WORK ON GENERATING PLANT When work is carried out on generating plant and directly connected equipment the following additional precautions shall be taken a the generator shall be at rest and isolated from all sources of supply b the field circuit shall be isolated and locked off where it is energised from a separate supply Where motor driven exciters are provided the switch controlling the motor shall be isolated and locked off C In the case of an internal combustion engine prime mover the starting equipment shall also be made inoperative d Danger and Do Not Operate Notices shall be prominently displayed at all points of isolation e where considered essential to ensure a safe system of work the safe to work p
29. e equipment protective clothing and insulated tools which have been regularly tested C they must be fully provided with information concerning the task being performed and the system they are working on d suitable insulating screens and barriers must be provided where appropriate e suitable and adequate test equipment must be provided together with suitable probes for connection to live equipment without danger to the user f the area around the working space must be properly controlled to prevent the entry of unauthorised persons g consideration must be given to the possible need for a single worker to be accompanied by a competent colleague so that prompt assistance is available in the event of an accident 18 4 5 4 6 Safety Documents The following safety documents shall be used and issued by Authorised Persons when it is considered justified because of the size or complexity of the system involved 1 Safety Programme 2 Safe to work Permit 3 Live Working Permit 4 Limitation of access Full description on the use of these safety documents can be found in HTM 2020 Volume 2 Electrical Safety Rule Book Contractors Working on Trust Site When contractors are required to carry out work the following procedures shall be adopted as appropriate i vi Contract specifications shall state the contractors shall be required to work in accordance with the Electrical Safety Policy a copy of which shall
30. e g Facilities SERCo Approved Contractor before putting into use and retested to an appropriate schedule Details including serial number and manufacturer of the equipment are to be recorded The equipment is to be labelled with its own unique identification marking and the date on which it is next due for examination and testing A comprehensive Asset Register should be maintained which shall be used to identify the owner user Directorate of each item of equipment and to instigate the mandatory periodic inspections and safety tests by appropriately trained staff All portable electrical equipment shall be tested and inspected in accordance with guidance given in the Code of Practice for In Service Inspection and Testing of Electrical Equipment 2001 11 j published by the Institution of Electrical Engineers The frequency of inspection of all portable electrical equipment shall be in accordance with Code of Practice as e above Employees and patients privately owned electrical equipment shall not be connected to UHL system unless the equipment has been tested and approved for use by a competent person Facilities and must subsequently comply with clauses e and 0 All portable tools purchased subsequent to issue of this document shall either be operated at a voltage of 110v or less and be supplied by an isolation transformer centre tapped to earth or if mains voltage 230v ac shall be conforming to BS2754 Cla
31. ent supplied and used by the Directorate or Department is Subject to the appropriate schedule of test and inspection electrical safety is promoted as part of the provision of information or training arrangements are in place for staff to report defects aregister of portable electrical equipment is maintained including the location of such equipment Power Tools All power tools should comply with one of the following 1 Be supplied from an 110 volt transformer centre tapped to earth 2 Be supplied via an RCD protected plug to BS7071 3 Be supplied via an RCD protected socket to BS4293 1983 4 Battery operated All Contractors equipment will be subject to random checks without notice requiring test certificates to be produced It is the primary responsibility of the user of any piece of electrical equipment for the day to day safety of such equipment All staff who use electrical equipment should therefore have any training necessary to ensure familiarity with its safe use and the need for constant vigilance for defects which may put individuals at risk Staff must also be aware that any defective equipment must not be used and should be returned for repair Extension Leads All extension leads shall be subject to inspection and testing as per the University Hospitals Leicester testing schedule All extension leads to be assessed in accordance within standard Portable Appliance requirements to determine frequency of testing
32. er The Facilities Department or the UHL H amp S Team can advise on request This guidance note is also published as section 3 of the UHL Low Voltage Electrical Safety operational Policy Reference Maintaining Portable amp Transportable Electrical Equipment HSG 107 Document Reference Number FSM G15 Review Date August 07 UHL s full policy on Low Voltage Electricity Safety is on the DMS reference number B27 2006 Page 1 of 2 PATIENT REQUEST TO USE THEIR OWN PORTABLE ELECTRICAL EQUIPMENT ON SITE Patient request to use their own portable electrical equipment on UHL premises The Nurse in charge of the ward should assess Repeat each time the patient care impacts of using the equipment the Patient is admitted to the Hospital Approved as suitable to Not suitable to use use in the patient in patient area environment NOT APPROVED Forward for test and or inspection by Competent Person i e Facilities Serco or Approved Contractor Highlight any requests as urgent if they involve Patient care privacy amp dignity DDA issues Pass Test amp Inspection Nurse in charge of ward requests approval for use in clinical environment from Infection Control Medical Physics where appropriate Failed Test amp Inspection NOT APPROVED Nurse in charge of ward informs patient of any significant hazards and restrictions in relation to where the equipment can be used Document Reference Number FSM G15 Review
33. ermit procedures shall be operated Generating plant shall not be allowed to operate with any part of its protective enclosures mechanical or electrical removed unless for special test purposes when it should be the subject of a safety assessment by an authorised person The safety assessment should establish whether any additional precautions or procedures to those already being implemented are considered necessary to ensure a safe system of work and these should be confirmed in writing 52 LR11 ADDITIONAL PRECAUTIONS FOR WORKING ON BATTERY AND UPS INSTALLATIONS The output from the battery should be isolated when working on the equipment which it supplies unless it is imperative for safety reasons that the battery output should be instantly and permanently available Where it is necessary to use tools for working on a battery they shall be of an approved insulated type The requirements to implement any or all of the precautions for work on live equipment to control maintenance work on battery installations shall be determined by an authorised person Work which may involve a source of ignition must never be undertaken in the vicinity of an enclosed cell or battery unless adequate precautions have been taken to eliminate any risk of danger or injury Where any work is to be carried out in the vicinity of or directly over a battery installation specific precautions must be taken to prevent the potential risk of danger or inju
34. es Inspection Acceptance Test Yearly Formal Visual Inspection and test or more frequently dependent on environment and use Up to four Yearly Test for lower hazard electrical equipment such as Display Screen Equipment reference HSG 107 Maintaining Portable and Transportable Electrical Equipment published by the Health and Safety Executive Formal Visual Inspection Before any electrical tests are performed a careful physical examination should be carried out paying particular attention to the following 1 Condition of plug top 2 Plug is wired up correctly with earth cable approximately 20mm longer than phase and neutral correct polarity etc 3 Fuse size is correct with minimum size capable of carrying equipment load 4 Condition of lead flex and suitability 5 Condition of appliance ensuring no covers etc are damaged switches indicators etc intact 6 Check whether appliance is Class 1 or 2 Portable Appliance Testing Portable appliance testing on all equipment excluding the exemptions identified within this section shall undergo full inspection and testing before being placed into service see P4 Arrangements Test results should be appropriately recorded and stored Testing will be undertaken at the recommended intervals or as deemed necessary by the LV authorised person 56 Directorate Responsibilities Each Directorate should have procedures in place to ensure that all portable electrical equipm
35. g surplus material or spares to minimise the possibility of persons falling while carrying out work on or inspecting live equipment and also to allow ease of access for operation of switches 15 4 3 4 4 4 4 1 4 4 2 xiv Circuit Identification When circuit rearrangements or additions are carried out the identities on switches and distribution boards shall be updated In these cases new labels shall be prepared in advance and shall be fixed in position immediately the circuit rearrangement or additions are completed When such rearrangements or additions are made all records shall be immediately updated Authorisation Appointments It shall be the duty of the Director of Facilities amp Estates on behalf of the Trust Board to appoint in writing a Senior Person as Designated Person The Designated Person shall on behalf of the Trust Board appoint in writing an Authorising Engineer who shall in turn appoint in writing sufficient Authorised Persons to provide the necessary cover for all systems and installations The Authorised Persons shall appoint in writing Competent and Responsible Persons Duties of the Designated Person It shall be the duty of the Designated Person to advise the Trust Board on all matters relating to electrical safety and to ensure compliance with the Electrical Safety Policy Safe Working Work Activities The Electricity at Work Regulations require that all work activities shall be carried out in w
36. icate of Authorisation for live working for LV systems are 1 All forms of testing fault finding or adjustments where practicalities dictate live working essential 2 Removal and replacement of fuse carriers in final sub circuits 2 Removal and replacement of plug in components Where the 16 IEE Regulations Electrical Testing on Fixed Installations is undertaken in house a certificate of authorisation for live working will be issued when carrying out testing on live distribution boards Additional Limitations a Extent of live working to be kept to a minimum b Approved test instruments and tools for live working must be used together with any additional equipment which may significantly reduce risk of danger e g 1000 volt gloves safety mats barriers etc C The testing and adjustment must not involve removal of components cables from terminations The equipment must be made dead prior to any such removal works take place Procedure for dead working must be followed 42 LR3 PROCEDURE FOR DEAD WORKING When work is to be carried out on low voltage electrical equipment and conductors made dead isolated the following applies No work shall commence until 1 Steps have been taken to prevent re energisation 1a The point of isolation should be identified as far as reasonably practical 1b Ifidentification is certain then inform staff of appropriate department indicating length of time isolation required 1c
37. ised person to a person in charge of the work to be carried outlive It makes known to that person exactly what equipment should be worked on with details of the work to be undertaken live what safety equipment is to be used and the safety precautions to be taken Permit to Work HV for use on high voltage systems a safety document which is a form of declaration signed and issued by an authorised person high voltage to a person in charge of work to be carried out on any high voltage electrical equipment It makes known to such person exactly what equipment is dead isolated from all live circuit conduction has been discharged is connected to earth and is safe to work on Safety Sign A sign that gives a message about health or safety by a combination or geometric form safety colour and symbol or text that is words letters numbers or both A Prohibition sign a safety sign indicating that certain behaviour is prohibited A Warning Sign a safety sign that gives warning of a hazard Sub Station any premise or part of premises or enclosure in which electrical energy is transformed or converted to or from high voltage or which contains high voltage switchgear Skilled Person An individual who has received the necessary training and has the necessary technical knowledge and experience required to prevent danger Supervision Immediate Supervision supervision of person having adequate technical knowledge experience and co
38. ither Alive nor charged Designated Person An individual who has overall authority and responsibility for the low voltage electricity system within the premises and who has a duty under the HSW Act to prepare and issue a general policy statement on health and safety at work including the organisation and arrangements for carrying out the policy This person should not be the Authorising Engineer Distribution Control Engineer An engineer employed by a regional electricity company and specifically authorised by the company to exercise the function of control over the company s switching operations Duty Holder A person on whom the Electricity at Work Regulations impose a duty in connection with safety Earthing Earth The conductive mass of the earth whose electric potential at any point is conventionally taken as zero Earthed Connected to the general mass of earth in such a manner as will ensure at all times an immediate discharge of electrical energy without Danger when applied to electrical equipment and circuit conductors all phases short circuited and efficiently connected to earth Circuit Main Earth safety earthing connection of an approved type applied by an Authorised Person and its position recorded before the issue of a safety document Additional Earth Earthing equipment of an approved type which is applied after the issue of a safety document for example an earth applied at a point of work Electrical Equip
39. le Generating Plant 4 7 3 Work on Batteries 4 8 Underground Cables and Overhead Lines 4 8 1 Work on Cables 4 8 2 Overhead Lines 4 9 Portable Electrical Equipment 4 9 1 Recording 4 9 2 Flexible Power Supply Cables 4 9 3 Mains Operated Portable Equipment used outside the building 4 9 4 Regular Plant Inspection and Testing 4 9 5 Hazardous Areas Part 5 Fire Protection Equipment for Electrical Equipment 5 1 Fixed Automatic Equipment 5 2 Portable Extinguishers 5 3 General Part 6 List of Supporting Documents APPENDICES Appendix 1 Duty Holders Appendix 2 Service Isolation Safe to Work Permit Appendix 3 Form of Completion and Inspection Certificate Appendix4 Schedule of Inspection and Test Results Appendix 5 Portable Equipment Inspection and Test Record SECTION 2 LOCAL HOUSE RULES SECTION 3 STAFF GUIDANCE FOR PORTABLE ELECTRICAL APPLIANCES SECTION 1 ELECTRICAL SAFETY POLICY INCLUDING ELECTRICAL SAFETY RULES Part 1 Policy Statement The University Hospitals Leicester NHS Trust is committed to providing for the safe operation and maintenance of the electrical systems to monitor this policy to ensure its effectiveness and ensure all electrical systems are managed without giving rise to danger This Electrical Safety Policy has been made for the protection of those persons whose employment involves them using or carrying out work on University Hospitals Leicester NHS Trust electrical systems and equipment and any
40. ledge and experience required to prevent danger while carrying out work on defined electrical systems When the electrical equipment has acquired a charge either because it is Live or has retained regained a charge even though it may be disconnected from the rest of the system Circuit Conductors Means any conductor in a system which is intended to carry electric current in normal conditions or to be energised in normal conditions and includes a combined neutral and earth conductor but does not include a conductor provided solely to form a protective function by connection to earth or other reference point Competent Person An individual appointed in writing who in the opinion of an Authorised Person has sufficient technical knowledge and experience required to prevent danger while carrying out work on defined electrical systems Complex Low Voltage System A system which is normally operated at low voltage and which requires more than one point of isolation to ensure safety at the point of work Conductor Means a conductor of electrical energy Connected Equipment Equipment connected into the low voltage system utilising electrical power to perform its dedicated function Danger Means a risk of injury Dangerous Condition A condition that is likely to lead to a dangerous occurrence Dangerous Occurrence An incident which involves a source of electrical energy and which gives rise to danger to any person Dead Ne
41. lity Installation Type Location Electrode resistance to earth earth electrode e g rod s tape etc T ec Q Main Protective Conductors Earthing conductor material C88 editieren Main equipotential bonding conductors incoming water service To incoming gas service To incoming oil service To structural steel To lightning protection To other incoming service s state details eene Main Switch or Circuit breaker BS Type and number of poles Current rating A Voltage rating V LOCATION unn ee Im Fuse rating A Rated residual operating current lan mA and operating time of ms at lan applicable only where an RCD is available and is used as a main circuit breaker OBSERVATIONS AND RECOMMENDATIONS 1 20 as appropriate Recommendations as detailed below Referring to the attached Schedule s of Inspection and Test Results and subject to the limitations specified at the Extent and Limitations of the Inspection section No remedial work is required following observations are made One of the following numbers as appropriate is to be allocated to each of the observations made above to indicate to the person s responsible for the installation the action recomme
42. llation work shall be inspected and tested prior to handover or putting into service The inspection and test results shall be recorded on forms as shown in Appendix 3 and 4 All equipment shall be clearly labelled particularly switchgear and fuse boards for circuit and identification purposes Circuit diagrams and plans shall be maintained to provide a comprehensive record of all electrical systems and arrangements shall exist for updating following systems modifications All electrical systems shall be periodically inspected and tested and appropriate records maintained as shown in Appendix 4 All electrical systems shall be maintained as appropriate to prevent danger so far as is reasonably practicable Strict guidelines shall be established for the purchase use and maintenance of portable electrical equipment All portable electrical equipment shall be periodically inspected and tested and records maintained as shown in Appendix 5 Alternative or supplementary computerised systems may be used to maintain these 8 3 1 4 records Temporary electrical installations shall be managed as follows See also LR5 a Temporary electrical installations shall conform to the safety standards of permanent installations b Temporary electrical installations shall be in the charge of an Authorised Person Such installations shall be inspected at intervals not exceeding 3 months C A register of all Temporary Electrical Installatio
43. ment Includes anything used intended to be used or installed for use to generate provide transmit transform rectify convert conduct distribute control store measure or use electrical energy Emergency Disconnection The operation of switchgear or other methods of breaking circuit conductors to prevent injury without the need to preset the mimic diagram Employer Any person or body who a Employs one or more individuals under a contract of employment or apprenticeship b Provides training under the schemes to which the Health amp Safety Training for Employment Regulations apply Equipment Abbreviation of electrical equipment Injury Means death or personal injury from electric shock electric burn electrical explosion or arcing or from fire or explosion initiated by electrical energy where any such death or injury is associated with the generation provision transmission transformation rectification conversion conduction distribution control storage measurement or use of electrical energy Isolated The disconnection and separation of electrical equipment and circuit conductors by use of an isolating device or alternative means from every source of electrical energy in such a way that its disconnection and separation is secure Isolating Device Logbook Live A purpose designed item of equipment which provides a secure method of disconnecting and separating electrical equipment and or circuit cond
44. mit was issued is now suspended completed and that all persons under my charge have been withdrawn and warned that it is no longer safe to work on the electrical equipment specified on this Safe to work permit and that all gear tools etc have been removed Signed Status Time Date Delete as appropriate Part 4 Cancellation This Safe to work permit is hereby cancelled The original has been returned to me and destroyed in the presence of the signatory to Part 3 Signed Time 30 Appendix 2 3 of 3 APPENDIX 3 1 of 5 ELECTRICAL INSTALLATION CERTIFICATE REQUIREMENTS FOR ELECTRICAL INSTALLATIONS BS 7671 IEE WIRING REGULATIONS DETAILS OF THE CLIENT INSTALLATION ADDRESS DESCRIPTION AND EXTENT OF THE INSTALLATION Tick boxes as appropriate New installation Description of installation Addition to an Extent of installation covered by this Certificate existing installation Alteration to an existing installation Use continuation sheet if necessary FOR DESIGN I We being the person s responsible for the design of the electrical installation as indicated by my our signatures below particulars of which are described above have exercised reasonable skill and care when carrying out the design hereby CERTIFY that the design work for which I we have been responsible is to the best of my our knowledge and belief in accordance with BS 7671 amended to except for the departures if any det
45. mpetence who is continuously available at 6 the location where work or testing is in progress and who attends the work areas as is necessary for the safe performance of the work or testing Personal Supervision supervision by a person having adequate technical knowledge experience and competence who is at all times during the course of the work in the presence of the person being supervised Switching The operation of circuit breakers switchgear or other methods of making closing or breaking opening circuit conductor s and or the application and removal of circuit main earth connections Switching Devices switchgear Equipment which is designed and manufactured specifically for the task of switching System Means an electrical system in which all the electrical equipment is or may be electrically connected to a common source of electrical energy and includes such source and such equipment Systems Control Engineer An engineer appointed in writing by management and on duty at the console centre for the purpose of controlling the generation of electrical energy and its transmission Voltage Categories Low Voltage LV the existence of a potential difference rms value for ac not exceeding 1000 volts ac or 1500 volts dc between circuit conductors or 600 volts ac or 900 volts dc between circuit conductors and earth This definition for low voltage incorporates the extra low voltage range as defined under the IE
46. n equipment such as this All relevant personal protective clothing and suitably insulated tools are to be utilised Isolation The disconnection and separation of electrical equipment by use of an isolating device or alternative means from every source of electrical energy in such a way that its disconnection and separation is secure i This will be undertaken wherever possible by the operation of an isolator MCCB or such like ii The application of a safety padlock to the device iii The application of a Do Not Operate Notice to the device The equipment should be proved dead by a voltage indicator and not a multimeter by i Prove voltage indicator ii Test equipment circuit is dead iii Re prove voltage indicator Certification Minor Works certificates and test and commissioning certificates are to be produced by the In House Tradespersons or the External Contractor whenever additions or alterations have been undertaken to any electrical circuits All work should comply with current IEE and British Standards for design installation and testing including BS 7671 41 LR2 PROCEDURES FOR LIVE FUNCTIONAL CHECKING In some circumstances it may not be possible to work dead In these instances a competent person authorised for work on or in the vicinity of live low voltage electrical equipment and conductors must be utilised Exceptional circumstances permitting live functional checking without the issue of a Certif
47. n circuit breaker COMMENTS ON EXISTING INSTALLATION in the case of an alteration or additions see Regulation 743 01 04 SCHEDULES The attached Inspection and Test Result Schedules are part of this document and this Certificate is only valid when Test Result Schedules are attached to it dedu Inspection Schedules and Test Result Schedules are attached Enter quantities of schedules attached 32 APPENDIX 3 3 of 5 MINOR ELECTRICAL INSTALLATION WORKS CERTIFICATE REQUIREMENTS FOR ELECTRICAL INSTALLATIONS BS7671 IEE WIRING REGULATIONS To be used only for minor electrical work which does not include the provision of a new circuit PART 1 Description of minor works 1 Description of the minor works 2 Location Address 3 Date minor works completed 4 Details of departures if any from BS 7671 1992 as amended PART 2 Installation details em earthing arrangement where known TN C S TN S TT 2 Method of protection against indirect contact Pctive device for the modified circuit Rating Comments existing installation including adequacy of earthing and bonding arrangements see Regulation 130 09 PART 3 Essential Tests Earth continuity satisfactory Insulation resistance Phase neutral MO Phase earth MO Neutral earth MO Earth fault loop impedance
48. nce with such equipment or sections stating for example DANGER LIVE EQUIPMENT Operational Restriction A specific written instruction issued by the authorising engineer or by the Department as appropriate modifying the normal operating procedures associated with a particular type of equipment for example Safety Action Bulletin Hazard Notices etc Named Person An individual who has been given permission in writing by an authorised person normally but not necessarily for a particular non electrical task where it is considered that the inherent risk of danger and or injury from electrical equipment requires extra vigilance Permission is to be by the issue and acceptance of a limitation of access safety document Safety Documents One of the following Limitation of Access a safety document which is issued and cancelled by an Authorised Person It defines the limits and nature of work which may be carried out in the vicinity of live electrical equipment Safe to Work Permit a safety document which is a form of declaration signed and issued by an authorised person to a person in charge of work to be carried out on any complex low voltage system or equipment It defines the scope of the work to be undertaken and makes known to such person exactly what equipment is dead isolated from all live circuit conductors and safe to work to Live Working Permit a safety document which is a form of declaration signed and issued by an author
49. nded 1 requires urgent attention 2 requires improvement 3 requires further investigation 4 does not comply with BS 7671 1992 as amended This does not imply that the electrical installation inspected is unsafe SUMMARY OF THE INSPECTION DECIES eria Ns pectin EE Overall assessment Satisfactory Unsatisfactory SCHEDULE S The attached Inspection and Test Result Schedules are part of this document and this Report is only valid when Test Result Schedules are attached to it m Inspection Schedules and Test Result Schedules are attached Enter quantities of schedules attached 35 FIXED WIRING INSPECTION REPORT APPENDIX 4 JOB NO Hospital SWITCHGEAR CIRCUIT SCHEDULE EQUIPMENT NO Circuit Cable Overcurre Insulatio R C D Test S Test Designation Points Wiring Phase CPC Disc BS Type 1 2 P P Earth RCD x1 Served Type Size Size Time No Rating P E Un Loop Ratin m s 36 APPENDIX 5 PORTABLE EQUIPMENT INSPECTION AND TEST RECORD Refer to page 67 of Code Of Practice For In Service Inspection And Testing Of Electrical Equipmente published 2001 by The Institution Of Electrical Engineers ISBN 0 85296 844 2 See also House Rule 14 for the Trusts policy on Inspection Testing Extension Leads Patient Visitors Portable Equipment amp Hire Equipment 37 SECTION 2 LOCAL HOUSE RULES THE UNIVERSITY HOSPITALS LEICESTER NHS TRUST FACILITIES DIREC
50. nducted in accordance with the relevant sections of this Code of Practice Prior to commencement of work on or near a battery the following precautions shall be adopted i vi All battery connections shall be efficiently insulated to prevent a short circuit No connection shall be made or broken at a battery terminal whilst current is flowing Lead acid batteries shall be inspected annually and a report shall be provided as to the condition of the battery All emergency batteries shall be inspected in accordance with the manufacturers instructions No person shall work on or near any battery where adjacent terminals may fore seeably be short circuited whilst wearing metal rings or metal wrist straps All tools used on batteries shall be of all the insulated type 4 8 Underground Cables and Overhead Lines i ii iii Cable markers shall be positioned at sufficiently frequent intervals to ensure all routes are clearly defined No person within the works area shall drive a stake rod or other earth penetrating object or commence any excavation unless through enquiries as to the whereabouts of underground cables have been made and investigations have been carried out using a cable locating device No person shall in any way interfere with a cable or remove any cable 21 4 8 1 4 9 4 9 1 4 9 2 4 9 3 4 9 4 cover warning tile or other protection unless specially authorised by an Authorised Person
51. ns as shown in Appendix 1 shall be maintained by an Authorised Person The register shall include i Designation of installation and date when installed ii The Authorised Person in charge of the maintenance of the temporary electrical installation iii Date of last Inspection Personnel The employer recognises there are different levels of competency in relation to electrical work Accordingly a No person shall be engaged in any work activity for which they do not possess the appropriate technical knowledge or experience necessary to prevent danger It is the policy of the employer to Authorise only such employees as posses the appropriate technical knowledge necessary to prevent danger Duty holders shall receive such training as is appropriate to the work they are required to do From time to time such persons shall receive refresher training as is deemed necessary by the employer Only Authorised or Competent Persons shall undertake work on any electrical system Any Authorised or Competent Person carrying out work on an electrical system shall adopt approved safe working procedures so as not to give rise to danger Appointment of Duty Holders Management shall appoint in writing the following designated staff a Designated Person 9 3 2 b d e Authorising Engineer Authorised Persons Competent Persons Named Persons Definitions functions of the above can be found in HTM2020 Volume 1
52. on should consist of location reason for temporary installation details of temporary installation date inspected by authorised person next inspection date The maximum period between inspections should be three months with shorter intervals where particular hazards are evident 46 TEMPORARY INSTALLATION REGISTRATION This certificate must only be used for the registering of Temporary Installations these must be re inspected at least monthly 1 LOCATION Precise description 2 REASON FOR TEMPORARY INSTALLATION 3 DETAILS OF TEMPORARY INSTALLATION 4 AUTHORISATION Authorised Person 5 RE INSPECTED Authorised Person Signed Time Date 2 2 wes Signed Time Date iei Signed Time Date Signed Time Date Signed Time Datei ied 47 LR6 ACCEPTANCE OF ELECTRICAL EQUIPMENT INTO SERVICE Any new piece of electrical equipment whether fixed or portable should be appropriately commissioned into service The Directorate s purchasing using the electrical equipment will assume full legal and operational responsibility for the maintenance testing and inspection of any such equipment if it is not purchased installed and commissioned into service through Facilities SERCo The commissioning process sho
53. ontact at a mains connector or appliance inlet or at connections with an equipment Deterioration of or damage to wiring insulation and connectors adjacent to heaters lamps hinges moving parts etc Distortion of heating elements or other damage to them Accumulation of surplus material debris scale and corrosion Ventilation Fuse ratings and types Safety of fuse holders finger proof Temperature of accessible parts eg lamp shades Availability of a User Manual to the user Availability of a Maintenance Manual to maintenance personnel 23 Inspect for signs of damage or deterioration including casing plugs terminals and cable sheath Carry out an Earth Continuity test on equipment that is not all or double insulated with a high current capable of revealing a partially severed connector Carry out relevant high voltage Insulation Tests where applicable Recorded test results to allow future comparison and any defects found shall be modified and recorded Portable equipment shall be inspected and tested at intervals as recommended in House Rule LR14 unless otherwise directed by the Designated or Authorised Person Planned maintenance protocols for medical devices will include additional tests which are not covered by this policy 4 9 5 Hazardous Areas Electrically operated portable equipment shall not be used in a hazardous area unless the particular equipment has been approved by the person responsible
54. ors Authorised Person associated with the work to be done the existing agreement shall be endorsed by the Contractors new Authorised Person to the effect they fully understand their responsibilities On completion or suspension of work or at the request of the Employers Authorised Person the Contractor shall formally return control of any related danger by signing the appropriate section of the Site Safety Agreement The Employers Authorised Person shall then at their discretion formally cancel the Site Safety Agreement Copies of the agreement shall be retained by the Employers Authorised Person for a period of five years after the date of cancellation All Contractors employed by the Employer and undertaking electrical Work shall be approved by the National Inspection Council for Electrical Installation Contracting NICEIC or be duly authorised by the Designated Person The Principal Contractor shall ensure that as fitted drawings are provided to the Client UHL or SERCo at the point of commissioning and handover Generating Plant and Batteries Work on generating plant Work on generating plant and associated equipment shall be conducted in accordance with the relevant sections of this Code of Practice Prior to the commencement of work the associated prime mover shall be effectively inhibited from starting Where practicable locks shall be employed to prevent inadvertent starting the keys for which shall be under the cont
55. ow in office and healthcare environments but risks are increased if portable electrical equipment is not subject to an appropriate schedule if testing and or inspection by a suitably competent person or if equipment is not correctly used Risk Factors Leads plugs or the equipment itself can become damaged This may result in electric shock or fire hazards both of which can have fatal consequences In addition misuse of portable electrical equipment may also present a significant risk Risk may also be higher where portable electrical equipment is used in hazardous environments e g wet damp or potentially explosive atmospheres Faulty portable electrical equipment can cause damage or interruption to the fixed electrical distribution system which may in turn result in loss or interruption to the electrical supply thus affecting medical equipment IT equipment and other key electrical equipment Management Responsibilities The owner user Directorate is responsible for ensuring that arrangements are in place for a risk based approach for the maintenance use and test or inspection of all portable electrical appliances under their control Portable Electrical Medical Equipment and Electrical Medical Devices are to be referred to the Medical Physics Department for guidance on maintenance and testing regimes Users of Portable Electrical Equipment Users should be encouraged to look critically at the portable electrical equipment they use by vi
56. person who may be affected by the activities of all employees of the trust This policy is in accordance with the requirement of The Health and Safety at Work etc Act 1974 and The Electricity at Work Regulations 1989 The Electricity Safety Quality and Continuity Regulations 2002 RIDDOR 1995 Workplace Health Safety and Welfare Regulations 1992 Electrical Safety Code For Low Voltage Systems HTM2020 1998 edition It is the duty of all persons who may be concerned with the operation of or work upon the electrical systems and equipment of the University Hospitals Leicester NHS Trust to a Comply with this Safety Policy and b Be thoroughly conversant with all legislation governing the work they may be called upon to undertake No employee will work on any electrical LV systems 50 1000v ac unless authorised or instructed to do so by an authorised or competent person Only employees with the appropriate knowledge skills and training will be authorised or instructed to work on LV electrical systems All work on LV systems will be carried out in accordance with electrical Low Voltage Safety Rules and Local House Rules Where appropriate safety training and instruction will be given together with the provision of safety devices equipment and instruments to carry out the work in a safe and proper manner Part 2 Shall Definitions In this Safety Policy unless the context otherwise requires the following
57. plemented by photographic and video evidence Electrical Installation Five yearly full electrical installation check including all connections protection methods etc and tests all in accordance with IEE Wiring Regulations Emergency generators standby battery systems Six weekly isolation of mains to test operation of auto changeover equipment and load carrying capability of emergency equipment Switchrooms Are subject to restricted access authorization for access works are required from Facilities Serco Quarterly clean and examinations of areas by competent persons Annual inspection by authorised person for fire barriers cleanliness switch identification 59 SECTION 3 STAFF GUIDANCE FOR THE USE OF PORTABLE ELECTRICAL EQUIPMENT Definition for Portable Electrical Equipment Electrical equipment that is fitted with a plug has a lead cable and which is normally moved around or can be moved around from place to place e g vacuum cleaners kettles heaters fans televisions desk lamp and extends to electrical equipment that could be moved e g photocopiers computers extension leads radios and portable medical equipment Generic Risks These are generally low in office and healthcare environments but risks are increased if portable electrical equipment is not subject to an appropriate schedule if testing and or inspection by a suitably competent person or if equipment is not correctly used Risk Factors Leads plug
58. quipment and conductors cannot be proved dead at the point of work and isolated the live working procedures shall apply Making electrical equipment conductors dead by means of a signal or pre arranged time interval is strictly forbidden The use of time clocks relays contactors as means of making dead is strictly forbidden Staff Training Competent Persons 1 All relevant staff shall undergo appropriate training to establish the level of competency to which they are required to achieve to ensure safe working The level of competency shall be for the following categories i Formal visual inspection of portable appliances ii Isolation disconnection of equipment for maintenance iii Use of portable appliance tester iv Electrical fault finding under live conditions v Electrical testing to BS7671 2001 IEE Wiring Regulations 16 Edition 40 HTM 2020 The general procedures as detailed in HTM 2020 will be followed in the implementation of safe system working The use of associated permits and log books will be undertaken and issued when deemed appropriate by the LV authorised person Live Working Live working will only be undertaken where no other practical alternative exists and the risk is assessed as acceptable Batteries with terminal voltages above 25 volts and 10 ampere hour rating will not require a certificate of authorisation for live working All safe working procedures are to be adapted to when working o
59. rcuit breaker off to effect removal of the supply and secured against unauthorised operation It is the person concerned who must be quite sure that the correct circuit has been made dead Isolation The worker must not assume that because a certain fuse has been removed or a circuit breaker switched off the circuit concerned is dead and is safe to work on The circuit must be tested to ensure it is dead See over page Isolation and testing of a circuit is always a requirement in addition to switching off Safe Working Systems Working with the system dead is the preferred method whilst working on an electrical installation A circuit must always be assumed live until proved DEAD On completion of the work safety precautions listed should be removed in reverse order once the Competent Person is satisfied that it is safe to do so Live Working Live working on any electrical installation which is not made safe by suitable isolation is not permitted by the Electricity at Work Regulations 1989 unless i It is unreasonable in all the circumstances for the system to be dead ii It is reasonable in all the circumstances for work to be carried out whilst the system is live 17 iii Suitable precautions including the provision of suitable protective equipment where necessary are taken to prevent injury iv A Competent Person is carrying out Testing and Diagnostic work It is clear that there must never be live working unle
60. ried out live 1 Suitable precautions shall be taken by the use of screening insulated tools and other appropriate means to avoid danger from inadvertent contact with live circuit conductors or earthed metalwork The users shall satisfy themselves by examination that the precautions taken are adequate and before use that the equipment to be used is suitable for the task 2 Any approved instruments should be used for electrical phase rotation or similar measurements 3 Adequate means shall be provided to prevent unauthorised access to the zone of work 4 Safety electrical mats shall be used 5 Tools specifically designed for live working should be used 6 A second person shall be in attendance as a safety man That person must have adequate knowledge and experience to carry out the following a Isolate the supply in an emergency b Safely remove the person from a live conductor C How to apply resuscitation 7 No person shall be authorised for live working under the age of 18 years and in addition must be either a competent or skilled person 45 LR5 TEMPORARY ELECTRICAL INSTALLATIONS In some circumstances temporary electrical supplies or installations may be required such as during upgrade works demolition cable faults etc Any such installations must be inspected and registered by an authorised person The installation must not compromise or affect safety or put users of the installation at risk The registrati
61. rol of the person in charge of or doing the WOrk Where a more comprehensive procedure exists relating to specific plant or equipment it shall be read in conjunction with the principles contained in this document i The generator shall normally be at rest The field circuit shall be isolated and locked off when it is energised from a separate dc supply Where motor driven exciters are provided the switch controlling the motor shall also be locked off The valves controlling the supply of starting air to the prime mover shall be closed and locked off Warning and Caution notices shall be prominently displayed at the points referred to in ii and iii Batteries associated with generator starting shall be physically disconnected prior to the commencement of work 20 4 7 2 Commissioning of Mobile Generating Plant Before any mobile generator is commissioned it shall be established that Adequate precautions have been taken to prevent inadvertent parallelling of mains and generator supplies System earthing arrangements are adequate The phase sequence of the generator output matches the phase sequence of the installation The characteristics of the generator are compatible with the load to be supplied In certain instances it shall be necessary to liaise with the relevant electricity supply authority before connecting generating plant 4 7 3 Work on Batteries Work on batteries and associated equipment shall be co
62. ry which could result from any accidental short circuiting of the battery terminals When handling electrolyte special precautions shall be taken and protective aprons worn where appropriate In all cases of burns medical attention should be obtained 53 LR12 BMS CONTROL Due to the extensive use of Building Management Systems circuits which are tested dead could be made live without notice by the computer system Itis essential therefore that isolation procedures are strictly followed using only approved isolation methods 54 LR13 CLEANING AND RELAMPING PROCEDURE 1 Isolate light fitting by operation of MCB 2 Remove diffuser if fitted Examine fitting for damage 4 Remove tubes without touching the exposed tube pins 5 Clean fitting using a cloth dampened with a solution of detergent cleaner 6 Replace tube ensuring correct colour for room area concerned T Re energise circuit 8 Check operation of fitting 55 LR14 PORTABLE APPLIANCE INSPECTION AND TESTING INTRODUCTION A quarter of reportable electrical accidents are due to faulty portable appliances according to the HSE Preventative maintenance and testing is needed to satisfy the Electricity at Work Regulations 1989 and hence prevent such accidents occurring As a bonus a strict maintenance and testing regime should extend the life of the appliances and reduce down time due to faults PORTABLE EQUIPMENT Portable Appliances Schedul
63. s or the equipment itself can become damaged This may result in electric shock or fire hazards both of which can have fatal consequences In addition misuse of portable electrical equipment may also present a significant risk Risk may also be higher where portable electrical equipment is used in hazardous environments e g wet damp or potentially explosive atmospheres Faulty portable electrical equipment can cause damage or interruption to the fixed electrical distribution system which may in turn result in loss or interruption to the electrical supply thus affecting medical equipment IT equipment and other key electrical equipment Management Responsibilities The owner user Directorate is responsible for ensuring that arrangements are in place for a risk based approach for the maintenance use and test or inspection of all portable electrical appliances under their control Portable Electrical Medical Equipment and Electrical Medical Devices are to be referred to the Medical Physics Department for guidance on maintenance and testing regimes Users of Portable Electrical Equipment Users should be encouraged to look critically at the portable electrical equipment they use by visually checking for damage to the outside of the equipment the plug and the lead for obvious defects If a defect is suspected the equipment should not be used and the supervisor should be informed Patient Electrical Equipment Personal Electrical Equipment
64. son or is in possession of a limitation of access permit issued by an HV Authorised Person 13 vii viii xi Access to Low Voltage Switchgear Rooms Enclosures etc All access doors are to be kept securely locked when unattended No person other than those designated e g Authorised Persons Competent Persons Named Persons where appropriate are allowed access unless they are accompanied by any of the above Where automatically controlled fire protection is installed the requirements in x below shall be adhered to Action in an Emergency If a mimic diagram is provided the first Authorised Person on a site shall display the Work on low voltage system in progress notice and lock the Authorised Person on site sign in the exposed position All other staff shall take no action until contact has been made with the Authorised Person who displayed the notice Coolant and Arc Extinguishing Media Work on any equipment containing alternatives to hydro carbon insulating oil should be carried out in accordance with any special instructions specified by the manufacturer See also HTM 2007 Fire Protection Equipment Automatic Control before work is carried out in enclosures containing automatic equipment the automatic control shall be rendered inoperative and a caution notice displayed Any precaution taken shall be noted on any safety document being issued The automatic control shall be restored when work has been comple
65. ss II and shall be used only in conjunction with an RCD set to trip on earth faults of 30mA or less and have a stated trip speed no greater than 30mS All hand lamps operating at mains voltage are forbidden All items of portable equipment such as luminaries shall be inspected each time they are returned to stores No such equipment may be removed from stores unless it has been visually inspected All employees should report any defects in electrical equipment to their Manager Equipment known to be defective must not be used and must be kept in a secure place or immobilised pending repair or replacement The general use of extension leads should not be condoned as an alternative to fixed wiring installations Where extension leads are required for non clinical use approval is required from the the Facilities department Only extension leads authorised by the Medical Physics Department are to be used for electrical equipment affecting patient care Extension leads used for maintenance and repairs should be mechanically protected for the environments in which they are used In all cases extension leads should be subject to the appropriate schedule of test and inspection T2 Extracts from the safety rules are i iii vi Injuries or Dangerous Occurrences All injuries or dangerous occurrences resulting from electrical accidents must be reported to an authorised person who prepares a report under RIDDOR Equipment defects
66. ss there is absolutely no way of avoiding it NOTE It must be pointed out that inconvenience to others due to the loss of their electrical supply is not a satisfactory defence in the event of a legal action following an accident Where live working is really unavoidable proper precautions must be taken to avoid accidents and injury and it will be up to the Authorised Person to justify the decision to work live and to demonstrate that all possible precautions were taken If all the necessary safety precautions cannot be taken there will be no option but to switch off the supply and to work on a dead system The Authorised Person must assess the risk and take precautions which will depend on the level of risk If he feels he does not have the knowledge and experience to judge the case he must seek advice from the Authorising Engineer Live working is a specialised field which should not be undertaken by those not fully trained and totally conversant with the dangers The following tests may be carried out by Competent Persons on a live conductor 1 Removing doors or covers to equipment distribution boards bus bars etc to check for voltage 2 X Attaching current clamp for load current monitoring 3 Testing and Diagnostic purposes by a competent person When live working is carried out the following precautions should be observed a only fully trained and competent persons must be involved b they must be provided with suitabl
67. sually checking for damage to the outside of the equipment the plug and the lead for obvious defects If a defect is suspected the equipment should not be used and the supervisor should be informed Patient Electrical Equipment Personal Electrical Equipment Portable electrical equipment brought onto Trust premises for use by the patient should be approved for use in the clinical environment by the Nurse in charge of the ward subject to the equipment and any associated leads being checked for electrical safety by Facilities SERCo The Nurse in charge of the ward should ensure that the patient is made aware of any restrictions relating to the use of the equipment e g where it can be plugged in not to leave trailing leads to switch off equipment after use and any local rules for use etc The Nurse in charge of the ward should consult with the medical physics department to identify any potential interference to medical equipment from personal portable electrical equipment used on site by the patient Infection Control may also be required to provide approval in cases referred by Clinical staff Staff Electrical Equipment Personal Electrical Equipment As above for Patient Electrical Equipment but substitute Nurse in charge of ward with Line Manager Risk Reduction Local mains electrical supply and those who come into contact with the equipment can be protected by the use of an RCD Residual Current Device or 110v transform
68. ted Portable extinguishers only or Dry Powder extinguishers are to be discharged in an enclosed space after an explosion or fire The space must be thoroughly ventilated before entry of personnel unless suitable breathing apparatus is worn Working on Equipment made Electrically DEAD Whenever practicable work shall be carried out on equipment or cables that have previously been made electrically dead Before any such work is carried out the associated isolating switches shall be locked in the OFF position and the equipment or cables shall be tested to verify that they are electrically dead Lockable stop buttons shall not be used as means of isolation Particular attention shall be given to isolating all inter connecting circuits which could become electrically live due to the operation of auxiliary or automatic 14 xii xiii controls Caution notices shall be fixed at all such isolation points when work is being carried out Other precautions such as screening of live conductors to prevent danger from inadvertent contact shall be taken where appropriate If fuses or links are the means of isolation these shall be removed and retained by the person responsible for carrying out the work Circuits which have been connected or re connected to a low voltage system shall be correctly phased out before the system is re energised Working on live equipment and functional testing The employer recognises the requirements of
69. the back of the original of this form is blank 28 front copy Safe to work permit Complete precisely and legibly in BLOCK CAPITALS Serial Number Location Appendix 2 2 of 3 Part 1 Issue Issued to I hereby declare that it is safe to work on the following low voltage electrical equipment which has been made dead and isolated All other electrical equipment is dangerous to work on The points of isolation are Note fix caution notices always use safety locks and obtain visible break if reasonably practical Danger notices and or screening of live parts are in place at the following points Is automatic fire protection rendered inoperative If yes state conditions for restoration Presence of any other hazards and precautions taken e g fire extinguisher on site etc The following works shall be carried out N A No other work shall be carried out Authorised Person Signed Time Date 29 back copy Part 2 Receipt hereby declare that accept responsibility for carrying out the work on the electrical equipment as detailed on this Safe to work permit and that no attempt will be made by me or person under my control to work on any other electrical equipment Signed Time Part 3 Clearance hereby declare that the work for which this Safe to work per
70. ty on Construction Sites e H amp SE GS 27 Protection against Electric Shock f H amp SEGS 34 Electrical Safety in Departments of Electrical Engineering 9 H amp SEGS 38 Electrical Test Equipment for Electricians h H amp SE PM 32 The Safe Use of Portable Electrical Apparatus i H amp SEPM 53 Emergency Private Generation Electrical Safety j H amp S EPM 64 Electrical Safety in Arc Welding k H amp S 6 13 Electrical Testing l 16th Edition of the IEE Wiring Regulations BS 7671 2001 m DOHHTM 2007 Electrical Services Supply amp Distribution n DOHHTM 2011 Emergency Electrical Services o DOHHTM 2021 Safety Code for High Voltage Installations p Workplace Health Safety and Welfare Regulations 1992 a HS GQ 107 Maintaining Portable and Transportable Electrical Equipment University Hospitals of Leicester UHL NHS Trust Relevant Policies UHL Control of Contractors Policy UHL Asbestos Policy 25 List of abbreviations SWF Switch Fuse CPC BS 88 High Rupturing Capacity Fuse PSCC Prospective Short Circuit Current IMP Cable Type S Singles Cable VIR INA Information Not Available amp SWA Single Wire Armoured MCB RCD Residual Current Device ACB VCB Vacuum Circuit Breaker OCB 26 Circuit Protective Conductor Main Frame used for earth continuity Impedance Resistance Vulcanised India Rubber Twin amp Earth Miniature Air Circuit Breaker Oil Circuit Breaker Appendix 1 THE
71. uctors from every source of electrical energy A pro forma logbook in which should be recorded all switching operations and precautionary measures taken the issue of safe to work permits live working permits and limitation of access safety documents safety programme serial number Dangerous occurrences as required to be reported by the Reporting of Injuries Diseases and Dangerous Occurrences Regulations RIDDOR Other unusual occurrences should be recorded in this logbook Implies connection to a source of electricity Management The owner occupier employer general manager chief executive or other person who is accountable for the premises and who is responsible for issuing or implementing a general policy statement under the HSW Act Mimic Diagram Notices A permanently displayed single line circuit diagram contained in a lockable enclosure It shows the principle elements of the low voltage system with facilities to altering the switch and circuit breaker symbols etc to show whether each such unit is switched to on closed switched to off open or switched to earth Caution Notices a notice in approved form attached to electrical equipment conveying a warning against interference with such equipment stating for example CAUTION DO NOT INTERFERE Danger Notice a notice in approved form attached to electrical equipment or sections when live calling attention to the danger of approach to or interfere
72. uld include the following 1 Detailed inspection of equipment and its installation to determine its suitability safety and compliance with all appropriate statutory and other regulations 2 A full range or electrical tests appropriate to the installation equipment shall be carried out and test results recorded 3i Operational checks shall be carried out to ensure satisfactory performance These shall be carried out in conjunction with the user wherever possible 4 Equipment details should be recorded to include manufacturer model serial number and ratings etc 5 Settings of any adjustable components should be recorded 6 A tested label and or relevant certification is to be applied to equipment and relevant details held on an asset or portable appliance register 7 As fitted drawings should be provided by the contractor installer and approved by Facilities SERCo 8 Maintenance contract s and or revenue budgets must be in place All fixed mains supply equipment i e connected directly onto the mains circuit must be installed with the approval of the Facilities SERCo Minor or Capital Works sections 48 LR7 TEST EQUIPMENT AND TOOLS Multimeters All multimeters either issued to tradesmen or held in stores shall have shrouded test lead ends instrument end in order to minimise risk if leads come away from instrument Test leads should be fused and have a maximum of 2 mm exposed tip at the test probe end Test leads not

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