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1.2. Annex K Safety Interlocks contains requirements for use of the probes in determining when safety interlocks may be required as safeguards from class 2 and 3 energy sources K 2 3 Similar to IEC 60065 and IEC 60950 1 accessible parts of equipment may include parts behind doors panels removable covers etc if they can be opened without the use of a tool or if a part is declared for example in installation instructions accessible by the manufacturer with or without use of a tool IEC 60065 IEC 60950 1 Annex V 1 1 also specifically clarifies that accessible parts do not include parts that become accessible when floor standing equipment exceeding 40 kg is tilted nor do they include parts
3. 1 IEC 62368 1 IEC 62368 1 defines accessible 3 3 6 1 as touchable by a body part with further information in the definition sub clause 4 3 1 and Annex V 1 1 that a body part is represented by one or more of the probes specified in Annex V IEC 62368 1 3 3 6 1 4 3 1 V 1 1 V 1 Annex V Determination of accessible parts contains the requirements for identifying accessible parts of the equipment that may contain energy sources requiring one or more safeguards to prevent against risk of injury V 1 In the table below the accessibility probes contained in Annex V are identified by function and Annex V sub clause figure number and are compared to those contained in IEC 60950 1 and IEC 60065 V V IEC 60950 1 IEC
4. 60065 The IEC 62368 1 probes have essentially the same dimensions and application concepts as used in the IEC 60950 1 and IEC 60065 standards Copyright 2010 Underwriters Laboratories Inc All Rights Reserved Do Not Reproduce without Permission Page 2 of 4 IEC 62368 1 IEC 60950 1 IEC 60065 One key exception is that IEC TC108 has introduced a new probe an unjointed version of the articulated probe used to determine whether a part may be accessible by children This probe sometimes known as the UL articulated probe with web stop traditionally has not been used in an unjointed version with a specified force IEC TC108 UL IEC 62368 1 Annex V sub clause title Annex V Figures IEC 60950 1 IEC 60065 V 1 1 General V 1 2 Test method 1 Surfaces and openings tested with jointed t
5. Copyright 2010 Underwriters Laboratories Inc All Rights Reserved Do Not Reproduce without Permission Page 1 of 4 IEC 62368 1 Technical Brief IEC 62368 1 IEC 62368 1 s Accessibility Probes IEC 62368 1 JongKyu Park UL Korea Ltd September 24 2010 This technical brief is one in an ongoing series of briefs that are intended to provide an introduction to keyconcepts and requirements covered in the new safety standard for audio video information andcommunication technology equipment IEC 62368 1 A V IEC 62368 1 In previous technical briefs we discussed the basic concepts of ordinary skilled and instructed persons the application of safeguards and the determination of energy source classifications All of these have elements that require consideration use of the subject discussed in this brief Accessibility Probes General conditions for accessibility in IEC 62368
6. d 4 Slot Openings 4 Fig V 4 Wedge probe V 4 Annex EE Fig EE 1 V 1 6 Test method 5 Terminals intended to be used by an ordinary person 5 Fig V 5 Terminal probe V 5 9 1 4 IEC 61032 test probe D Although Annex V contains the general requirements for use of accessibility probes details on specific applications are provided in the body of the standard V For example Sub clause 5 3 6 2 Contact requirements contains accessibility considerations in the context of clearances from electrical energy sources 5 3 6 2 Sub clause 8 5 4 2 Equipment having an electromechanical device for destruction of media includes requirements on application of accessibility probes to document shredders and similar equipment 8 5 4 2
7. est probes 1 Fig V 1 Child access probe V 1 Annex NAF Fig NAF 1 Canada US National Difference E g 9 1 1 2 Fig 18 US National Difference Fig V 2 Non child access probe V 2 E g 2 1 1 1 b Fig 2A IEC 61032 test probe B E g 9 1 1 2 IEC 61032 test probe B V 1 3 Test method 2 Openings tested with straight unjointed test probe 2 New probe Unjointed version of Fig V 1 child access probe V 1 Unjointed version of Fig V 2 non child access probe V 2 E g 2 1 1 1 b IEC 61032 test probe 11 E g 13 3 1 IEC 61032 test probe 11 V 1 4 Test method 3 Plugs jacks connectors 3 Fig V 3 Blunt probe V 3 2 1 1 1 d Fig 2C Copyright 2010 Underwriters Laboratories Inc All Rights Reserved Do Not Reproduce without Permission Page 3 of 4 V 1 5 Test metho
8. intended for building in or rack mounting if the equipment is assembled in accordance with its installation instructions V 1 1 40 kg Copyright 2010 Underwriters Laboratories Inc All Rights Reserved Do Not Reproduce without Permission Page 4 of 4 Finally although the assessment of accessibility to energy sources by all three types of persons is determined using the same Annex V test probes the prescribed level s of protection i e number and type of safeguards varies with awareness level of the person accessing the equipment 3 V In this continuing series of technical briefs additional key topics associated with the new IEC 62368 1 standard will be reviewed similarly IEC 62368 1
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