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CHAPTER 5 - Alliant Energy

1. M ALLIANT a al ENERGY ELECTRIC SERVICE RULES GENERATION Issued Oct 2015 Chapter 5 CHAPTER 5 ELECTRIC SERVICE RULES DISTRIBUTION GENERATION 500 SCOPE This chapter applies to customer owned portable temporary or permanently mounted generation The Chapter is divided in two parts Part A which addresses optional standby systems these are not operated in parallel with AE electric distribution system Part B which addresses distributed generation DG systems these do operate in parallel with Alliant Energy s electric distribution system Consult Alliant Energy for these and all other generation installations DISTRIBUTION GENERATION OPTION STANDBY Part A 501 SAFETY A The customer shall consult Alliant Energy before connecting any generating equipment to any customer circuit that is or can be supplied from Alliant Energy s electric distribution system B Transfer switches may only be located before the main service disconnects where the available fault current is less than 10 000 amps C The customer s transfer device shall be constructed and connected as to positively prevent any possibility of power from the customer s emergency source feeding back into Alliant Energy s distribution system 502 TRANSFER SYSTEM REQUIREMENTS a The customer may supply all or a portion of his electrical load from his standby generator b The customer shall install a transfer switch or contactor to transfer all ungrounded
2. GENERATION Issued Jan 2015 525B NET METERED SELF CONTAINED DISTRIBUTED GENERATION CONTINUED 100 300AMP 1 PH 120 240 100 300 AMP 1 PH 120 208 pl OH FEED OPTION r SERVICE Approved MAIN DG Dual Lug Meter Socket Disconnect See ESE Book Section E106B Il 6 TO DG SYSTEM gt FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid engraved plastic permanent label at meter socket for multiple or net metering Page 133 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 526 NET METERED DISTRIBUTED GENERATION FIELD BUILT STRUCTURE 100 300 AMP 1 PH 120 240 VOLT 100 300 AMP 3PH 120 208 VOLT Description Utility furnishes installs amp Customer furnishes maintains installs amp maintains wee O oo Field Bult Structure X 1 _ modify lugs see note 6 below 5 Treated35 l pole 1 T 7 Service Entrance Entrance Overhead Service Conduit with weather head 9 FeederPanels asneeded 10 ExpansionSleeves asneeded X 12 CondutExpansionJoint J J Eo oo NOTE The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible and letters The applicant sha
3. 1 PH 120 240 301 800 AMP 3 PH 120 208 301 800 AMP 3 PH 277 480 DG SERVICE ENTRANCE DISCONNECT TERMINATION GENERAL CABINET SERVICE CT S GROUND LINE A Oe rs TO CUSTOMER LOAD lt TO GENERATOR p All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 149 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 533 GROUNDING A In accordance with the National Electrical Code NEC a permanent and effective ground shall always be provided for all service entrance equipment The neutral conductor shall also be grounded See Section 501 for examples B The grounding of electric installations is essential for the safety of those using the electric service personnel maintaining the service and is a safeguard for the customer s equipment C Intersystem Bonding is required by NEC 250 94 See section 535D for details 534 GROUNDING ELECTRODE SYSTEM Grounding Electrodes NEC 250 52 1 Metal Underground Water Pipe NEC250 52 1 2 Metal Frame of a Building or Structure NEC250 52 A 2 3 Concrete Encased Electrode Ufer NEC250 52 A 3 4 Ground Ring NEC250 52 A 4 5 RodandPipe Electrodes NEC250 52 A 5 6 Plate Electrodes NEC250 52 A 6 A If available on the premises at each building or structure
4. ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 529 GENERAL SERVICE INSTRUMENT METERED DISTRIBUTED GENERATION WITH o TO 200 AMP SELF CONTAINED DISTRIBUTED GENERATION CONTINUED 301 800 AMP 1 PH 120 240 301 800 AMP 3 PH 120 208 8 4 La 6 9 10 Final Grade All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 141 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 529A GENERAL SERVICE INSTRUMENT METERED DISTRIBUTED GENERATION WITH SELF CONTAINED DG WHERE SERVICE PLUS GENERATION DOES NOT EXCEEDS 1207 OF SERVICE PANEL BUSS CAPACITY 301 800 AMP 1 PH 120 240 301 800 AMP 3 PH 120 208 V9 SERVICE is ENTRANCE DISCONNECT CT CABINET PANEL TO DG SYSTEM 5ft i 6 FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 142 y ALLIANT ala ENERGY ELECTRIC SERVICE RULES Chapter 5 GENERATION Issued Jan 2015 529B GENERAL SERVICE INSTRUMENT METERED DISTRIBUTED GENERATION WITH SELF CONTAINED DG WHERE SERVICE PLUS GENERATION EXCEEDS 120 OF SERVICE PANEL BUSS CAPACITY 301 800 AMP 1 PH 120 240 301 800 AMP 3 PH 120
5. Pad 7 i BED 7 j DGCTcbint 0 000 cm NOTES The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 148 y ALLIANT ala ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 532 DUAL INSTRUMENT TRANSFOMER DISTRIBUTED GENERATION OPTIONAL WALL MOUTED PAD MOUNTED OR ON FIELD BUILT CONTINUED 301 800 AMP
6. and state requirements Consult with Alliant Energy for details and specifications Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect Modification to lugs in meter socket are not allowed and may violate UL rating The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 136 M ALLIANT a al ENERGY ELECTRIC SERVICE RULES Chapter 5 GENERATION Issued Jan 2015 527 DUAL METERED FARM YARD POLE DISTRIBUTED GENERATION CONTINUED 100 300 AMP 1 PH 120 240 VOLT 100 300 AMP 3PH 120 208 VOLT aS SS oo 12 to 30 AE Pole 5 ft All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 137 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 528 NET METERED FARM YARD POLE DISTRIBUTED GENERATION 100 300 AMP 1 PH 120 240 100 300 AMP 3 PH 120 208 Description Utility furnishes Customer furnishes
7. conductors load to either the generator or normal supply c Alliant Energy shall approve automatic transfer systems d Alltransfer devices shall a Prevent connecting the generator to the load until after the load is disconnected from Alliant Energy s system Exception Closed transition type transfer switches that interconnect the emergency generators and the normal supply for a maximum of 100 milliseconds 1 10 second Page 121 2 ALLIANT ENERGY ELECTRIC SERVICE RULES GENERATION Issued Oct 2015 Chapter 5 b Positively prevent accidental connection of the generator to Alliant Energy s system at any time Closed transition type transfer switches shall have a lockable visually open break in the circuit between the normal supply and the transfer switch NOTES Closed transition Close before Break no disruption to load Open transition Open before Break requires disruption to load 503 TRANSFER SWITCH OPTIONS a Permitted 1 Manual or automatic double throw switches 2 Double throw relays 3 Mechanically interlocked switches 4 Mechanically interlocked fuse block b Permitted in dry corrosion free dust free environments such as indoors 1 Breakers with factory designed mechanical interlocks C Not permitted 1 Keyinterlocked switches 2 Keyinterlocked breakers 3 Switches that plug into the meter socket unless listed in ESE section E231 See 504 b below 4 The addition of splices or taps in meter s
8. served each item in NEC 250 52 A 1 6 shall be bonded together to form the grounding electrode system B The grounding electrode conductor GEC 1 The grounding electrode conductor shall not be run through meter sockets Instrument Transformer Cabinets or the utility portion of a metering pedestal 2 The grounding electrode conductor may be terminated in one of the following a In the service disconnect s b In the metering equipment containing a service disconnect C In the termination compartment of multiple metering installations C Metal underground gas piping systems on the line side of the gas meter shall not be used as a grounding electrode or bonded to the grounding electrode system D If two ground rods are installed NEC 250 56 both ground rods shall be installed to left or right of meter socket but not in front The grounding electrode conductor shall not pass in front of meter socket or pedestal Rage 150 Se 2 ALLIANT ala ENERGY Chapter 5 Page ELECTRIC SERVICE RULES GENERATION Issued Jan of 2013 Wall Mounted Meter Socket Meter Socket Raceway for P 2 Service Conductors Outside Wall Neutral Bus Service Disconnect Grounding Electrode Conductor Ground Line Grounding Single Self Contained Wall Mounted Meter Sockets and Pedestals x Outside Wall fr Disconnect Neutral Bus Meter Pedestal gt Enclosure Ground Line Service Conductors Groundin
9. the feeder s branch circuit s conductor to the feeder s branch circuit s feeder with separate equipment equipment grounding conductor and the equipment grounding conductor and the grounding and neutral conductors or generator s neutral conductor to the generators neutral conductor to the ona branch circuit feeder s branch circuit s neutral conductor feeder s branch circuit s neutral conductor Neutral must be switched Donot switch the neutral Transfer Switch on the source side of a single family residential service entrance rated 200 amps or less P 1 Connectthe generator s equipment grounding conductor and neutral conductor to systems grounded available fault current of 10 000 2 less neutral conductor P 2 Do not switch the neutral NEC 547 Agricultural Building pole top site isolating device transfer switch 1 Connect the generator s equipment grounding conductor and neutral conductor to the service Service entrance rated transfer 3 Io entrance s grounded neutral bus 2 Donotswitch the neutral Transfer Switch is located on a 1 Connect the generator s equipment grounding conductor and neutral conductor to systems grounded 4 feeder with a grounded neutral neutral conductor Allowed prior to 2008 NEC 2 Donotswitch the neutral separately derived generator is a generator that can be operated without being interconnected to a service entrance panel by a transfer switch A typical
10. to the Interstate Power and Light Electric Distribution System e Thelowa Administrative Code Chapter 45 MINNESOTA e IPL Technical Guidelines and Requirements for Interconnection of Parallel Operated Generation Connected to the Interstate Power and Light Electric Distribution System e Minnesota Administrative Rules Chapter 7835 WISCONSIN e Wisconsin Distributed Generation Interconnection Guidelines e PSC119 Rules For Interconnecting Distributed Generation Facilities e Standard Distributed Generation Application Form Generation 20 kW or Less e Standard Distributed Generation Application Form Generation 20 kW to 15 MW e Distributed Generation Interconnect Agreement 20 kW or less e Distributed Generation Interconnect Agreement 20 kW to 15 MW 514 CONTRACT The Company will require an interconnect agreement specifying technical and operating aspects of distributed generation Please contact Distributed Resources Hotline at 1 800 972 5325 or visit the Alliant Energy Web Site for more information www alliantenergy com 515 INSURANCE See Distributed Generation Contract Requirements 516 GENERATOR OPERATION See Section 513 517 GENERATOR MAINTENANCE See Section 513 518 GENERATOR PROTECTION See Section 513 519 ISOLATION The customer shall provide an isolating device to automatically disconnect the customer s generator from the Company s electrical system in the event of a Company power outage The isolating device shal
11. 208 When existing CT Cabinet does not accommodate the addition of DG conductors a bussed gutter is required DO NOT Modify CT Cabinet or lug terminals See notes on page 140 BUSSED GUTTER W APPROVED LOCKING UTILITY HASP CT CABINET DG DISCONNECT SERVICE ENTRANCE 6f PANEL 6 TO DG SYSTEM FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 143 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 530 GENERAL SERVICE INSTRUMENT METERED WITH o TO 300AMP SELF CONTAINED DG 301 800 AMP 3 PH 277 480 No Description Utility furnishes installs Customer furnishes amp maintains installs amp maintains es h Approved metersoket ff E general service CT FEE 4 Junctionbox S 0 JX S s Approved DG metersocket SS x a the code Refer to page 150 152 7 DGserviceentrance 9 Optionalundergroundfeed X Expansionjoint X NOTES The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch DG disconnect must ha
12. ET METERED SELF CONTAINED DISTRIBUTED GENERATION WHERE SERVICE PLUS GENERATION DOES NOT EXCEEDS 120 OF SERVICE PANEL BUSS CAPACITY 100 300AMP 1 PH 120 240 100 300 AMP 1 PH 120 208 LOC FEED OPTION Service plus DG is 2 limited to 1202 of bus capacity per NEC 705 SERVICE D CENTER OF METER ENTRANCE PANEL M d Tone 0 SYSTEM TO LOADS FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 131 2 ALLIANT ENERGY Chapter 5 ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 525A NET METERED SELF CONTAINED DISTRIBUTED GENERATION CONTINUED 100 300AMP 1 PH 120 240 100 300 AMP 1 PH 120 208 _ Approved OH FEED OPTION Alternative Energy Socket Meter Socket w mains See ESE Book E106A DG Disconnect LA To Distributive Generation 5 ft 6 Meter Sockets have main breaker and built in breaker for alternative energy DG capacity shall not exceed the rating of DG breaker and must conform to NEC 705 amp 690 FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 132 ALLIANT ENERGY ELECTRIC SERVICE RULES Chapter 5
13. I Refer to page 150 152 z7 DGDisonect X Overhead conduit 9 Optional underground feed o S BE NOTES 1 The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch 2 DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility 3 The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications 4 Communication intersystem bonding is not allowed on or in any metering device 5 Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect 6 Modification to lugs in meter socket or CT Cabinet are not allowed and may violate UL rating 7 The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements 8 Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 140 y ALLIANT ala ENERGY
14. RIC SERVICE RULES GENERATION Issued Jan 2015 SERVICE ENTRANCE RATED TRANSFER SWITCH SEPARATELY DERIVED SYSTEM NON SEPARATELY DERIVED SYSTEM SERVICE RATED DO NOT SWITCH SERVICE RATED THENEUTBAL TRANSFER SWITCH THE NEUTRAL TRANSFER SWITCH UTILITY UTILITY FEED GENERATOR 259 TO LOAD eee Figure 3 TRANSFER SWITCH IS LOCATED ON A FEEDER WITH A GROUNDED NEUTRAL PRIOR TO NEC 2008 SEPARATELY DERIVED SYSTEM NON SEPARATELY DERIVED SYSTEM UTILITY FEED UTILITY FEED UTILITY UTILITY METER METER 2 T CUSTOMER S p __ CUSTOMERS i 7 WICE SERVICE ENTRANCE 1 2 0r 38 J a SERVICE ENTRANCE 4 2 or 36 GIN k he ee tee ees es a a tias qu TRANSFER SWITCH PANEL ge GENERATOR GENERATOR DO NOT SWITCH DO NOT SWITCH THE NEUTRAL Figure 4 THE NEUTRAL Page 125 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 506 STANDBY GENERATOR INSTALLATION GENERATOR SUPPLIES ALL OF CUSTOMER S LOAD AT TWO DIFFERENT LOCATIONS SINGLE PHASE 120 240 VOLTS UP TO 300 AMPS The customer shall install own and maintain the entire installation except for Alliant Energy s meters Customer s Customer s Main Main Disconnect Disconnect NOTES 1 The generator service disconnect s and overcurrent protection may be an integral part of the generator 2 Transfer switches shall be listed by an approved testing agency 3 One of the transfer swi
15. application is to provide power to portable equipment A non separately derived generator can NOT provide power directly to portable equipment Switching criteria Do not switch the equipment grounding conductor or the grounded neutral conductor Do not re ground the neutral after the grounded neutral conductor has been separated into a neutral conductor and an equipment grounding conductor Page 123 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 TRANSFER SWITCH IS INSTALLED ON A FEEDER WITH SEPARATE EQUIPMENT GROUNDING AND NEUTRAL CONCUCTORS OR ON A BRANCH CIRCUIT SEPARATELY DERIVED SYSTEM NON SEPARATELY DERIVED SYSTEM UTILITY UTILITY FEED FEED CUSTOMER S CUSTOMER S SERVICE ENTRANCE SERVICE ENTRANCE gi GIN im u d TRANSFER TO LOAD TO LOAD JGENERATOR DO MOT SWITCH NEUIRAL MUST BE SWITCHED THE NEUTRAL Figure 1 TRANSFER SWITCH ON THE SOURCE SIDE OF A SINGLE FAMILY RESIDENCE S SERVICE ENTRANCE OR NEC 547 AGRICULTURAL BUILDING POLE TOP SITE ISOLATED DEVICE SEPARATELY DERIVED SYSTEM NON SEPARATELY DERIVED SYSTEM TRANSFER SWITCH OR TRANSFER SWITCH OR POLE TOP TRANSFER POLE TOP TRANSFER SWITCH e a E 5 E JUL DO NOT SWITCH SWITCH customers 7 THE NEUTRAL THE NEUTRAL ISERVICE ENTRANCE CUSTOMER S Figure 2 Page 124 2 ALLIANT ENERGY Chapter 5 ELECT
16. cket for multiple or net metering Page 145 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 531 DUPLEX MANUFACTURED PEDESTAL DISTRIBUTED GENERATION 100 300 AMPS 1 PH 120 240 100 300 AMPS 3 PH 120 208 No Description Utility furnishes installs amp Customer furnishes maintains installs amp maintains 2 Undergoundservelateral E enclosure 4 Sevieenrane CST 5 DG disconnect TEX Grounding in accordance with X the code Refer to page 150 152 NOTES 1 The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible and permanent letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch NEC 705 22 2 DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility 3 The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications 4 Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the grounding electrode conductor or ground bus in customers main disconnect 5 The building or structure shall have a permanent plaque or direc
17. ent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements 8 Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 138 y ALLIANT ala ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 528 METERED FARM YARD POLE DISTRIBUTED GENERATION CONTINUED 100 300 AMPS 1 PH 120 240 100 300 AMPS 3 PH 120 208 12 I0 350 we 4 8 MIN 11 6 POLE TOP VIEW el a 2 c oF Lil Lu H lt FINAL GRADE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 139 2 ALLIANT ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 529 GENERAL SERVICE INSTRUMENT METERED DISTRIBUTED GENERATION WITH SELF CONTAINED DISTRIBUTED GENERATION 301 800 AMP 1 PH 120 240 301 800 AMP 3 PH 120 208 301 800 AMP 3 PH 277 480 Description Utility Customer V GEN amp maintain amp maintains Meter E Approved meter socket a Approved general service CT cabinet do not modify lugs see note 6 below function BO Approved DG meter socket X En
18. g Electrode Conductor Grounding Electrode Page 151 ALLIANT aaf ENERGY Chapter 5 ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Instrument Transformer Cabinets C T CABINET OUTSIDE WALL NEUTRAL BUS METER SOCKET EQUIPMENT SERVICE DISCONNECT BONDING CONDUCTOR MIN 8 CU NEN NEUTRAL BUS ALTERNATE BONDING POINT EQUIPMENT 5 24 1 RACEWAY FOR SERVICE ON 2 CONDUCTORS CONDUCTORS va 2 GROUNDING ELECTRODE CABINET BONDING PZ GROUND LINE CONDUCTOR POINT 2 ESRI11514 dgn 535 BONDING SERVICE ENTRANCE AND METERING EQUIPMENT A The electrical contractor is responsible for all bonding connections B The termination cabinet the CT cabinet and the meter socket enclosure shall be bonded to 1 The system neutral when they are located on the line side of or at the main disconnect 2 The equipment grounding conductor when all of the following apply a They are installed the load side of the main disconnect b No service ground fault protection is installed c They are located immediately adjacent to the main disconnect C Bonding shall be provided where necessary to ensure electrical continuity and the capacity to safely conduct any fault current likely to be imposed D Intersystem bonding CATV Cable Dish systems and Telephone Companies shall bond to the grounding electrode system if available If the grounding electrode system is not readily available bonding shall be done at the
19. ground terminal bar in the main service entrance equipment NEC 250 94 2 or 3 only This intersystem bonding shall not be done in or on the metering equipment Wisconsin is the jurisdiction of the PSC PSC 114 099 E Meter disconnect switches nominally rated not in excess of 600 volts shall have a short circuit rating equal to or greater than the available short circuit current These devices shall also be grounded and bonded according to parts V amp VII of Article 250 Page 152
20. installs amp maintains installs amp maintains a 2 Service connectors X 2 JckbJj 0 0 X S O 4 Pole treted35 dasssmin J X 5 Down guy anchor amp guyguard X 6 Serviceentrance X 7 Overhead service conduit J o 0 X 8 Weatherhead PK modify lugs see note 6 below C refer to page 150 152 m Feederconduit PK CE gt conductors o A Distributed Generation Disconnect MESE NOTES 1 The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible and letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch 2 DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility 3 The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications 4 Communication intersystem bonding is not allowed on or in any metering device 5 Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect 6 Modification to lugs in meter socket are not allowed and may violate UL rating 7 The building or structure shall have a perman
21. l not re close until after power is restored to the Company s electrical system The isolating device may be a circuit breaker relay contacts switch or equivalent equipment The above isolating device shall be activated by reliable sensors which detect loss of utility system AC voltage low or high frequency generator overload or other suitable input from the utility s distribution system Static Inverters and Converters shall have a UL 1741 listing or accepted Nationally Recognized Testing Laboratories NRTL with an Output Type of Utility Interactive or an Page 128 yA ALLIANT ENERGY ELECTRIC SERVICE RULES GENERATION Issued Oct 2015 Chapter 5 Output Code of UI See Technical Guidelines and Distributed Generation Contract Requirements 520 SYNCHRONIZING see technical guidelines referred to in section 513 521 TRANSFORMATION In the event the voltage or frequency supplied by the customer generator is different than the Alliant Energy s available standard frequency and or voltage refer to Chapter 1 Section 108 the customer shall install own and maintain all transformers and associated equipment necessary for the voltage transformation 522 POWER FACTOR AND CAPACITORS Some types of generators are incapable of supplying the customer s lagging power factor loads such as motors etc The customer is responsible for supplying any power factor correction capacitors which may be required during the genera
22. ll provide and post its procedure for disconnecting the DG facility next to the switch DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect Modification to lugs in meter socket are not allowed and may violate UL rating The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 134 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 526 NET METERED DISTRIBUTED GENERATION FIELD BUILT STRUCTURE CONTINUED 100 300 AMP 1 PH 120 240 100 300 AMP 3PH 120 208 5 H 6 GROUMC LINE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter s
23. ocket for multiple or net metering Page 135 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 527 DUAL METERED FARM YARD POLE DISTRIBUTED GENERATION 100 300 AMP 1 PH 120 240 100 300 AMP 3 PH 120 208 NO Utility furnishes installs Customer furnishes amp maintains installs amp maintains Servicedrop Service drop 4 jPole treated3s dasssmin O X O 5 Downguy anchor amp guy guard X O 6 Serviceentrance Jooo X 7 Overhead service conduit X Weatherhead JX SS 9 Approved duplex meter socket X Grounding in accordance with Feeder condi doe Feeder stones eeraa Domum Generation disconnect see note 3 below NOTES Customer shall provide 36 inch leads at the weather head If large equipment is to be driven under the service drop see NESC 232 1 Drop shall be a minimum of 18 feet above ground at the lowest point The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible and letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility The DG disconnect and its location shall conform to technical guidelines
24. ockets 504 TRANSFER SWITCHES a Pole Top Transfer Switches shall be listed in the ESE Book NEC 547 2 Site Isolating Device 1 ESE228 250 Volt 2 ESE229 600 Volt b Grade Level Transfer Switches 1 Grade Level transfer switches with integral meter sockets will be listed in the ESE Book ESE 230 2 Grade Level transfer switches without integral meter sockets do not require Alliant Energy approval and will not be listed in the ESE Book but their installation must meet the following requirements a Meetthe requirements of NEC b Belisted by an approved testing laboratory e g U L c Meet ESR 503 requirements Page 122 23 ALLIANT ENERGY Chapter 5 Page ELECTRIC SERVICE RULES GENERATION Issued Jan of 2015 505 CONNECTION AND NEUTRAL SWITCHING REQUIREMENTS SEPERATELY DERIVED SYSTEM NON SEPERATELY DERIVED SYSTEM TRANSFER SANTET OE KERATON STANDBY GENERATORS 9 includes portable generators 7 SWITCH 20 The generator s neutral is bonded to the The generator s neutral is NOT bonded to the LOCATION generator s equipment grounding conductor at the J generator s equipment grounding conductor at the generator and a grounding electrode system is generator and a grounding electrode system is NOT required at the generator required at the generator Connect the generator s equipment grounding Connect the generator s equipment grounding Transfer Switch is installed ona conductor to
25. t the Alliant Energy Web Site for more information www alliantenergy com 510 ELECTRIC RATE The customer s rate for purchasing electricity from the Company is the based on the available rates schedules and the size of the generating unit Customer generated electrical energy delivered to the Company s system will be purchased in accordance with the Company s applicable generation rates Please contact the Distributed Resources Hotline at 1 800 972 5325 or visit the Alliant Energy Web Site for more information www alliantenergy com 511 METERING A The Company will furnish and install appropriate meters CT s amp PT s if required to measure energy flow Note that additional meter charges may apply B The customer shall furnish install own and maintain the necessary electric service entrance equipment meter sockets metering cabinets and related equipment that may be required for supporting or enclosing the Company s metering equipment 512 COMPANY DISTRIBUTION SYSTEM Page 127 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 Modifications and additions to Alliant Energy s electrical distribution system to accommodate distributed generation systems are treated as standby duplicate facilities according to Alliant Energy s extension rules 513 TECHNICAL INFORMATION IOWA e IPL Technical Guidelines and Requirements for Interconnection of Parallel Operated Generation Connected
26. tches shall be a two pole device All other transfer switches shall be three pole devices to open the neutral between the services Page 126 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 DISTRIBUTION GENERATION Distributed Generation DG Part B 507 SCOPE This section of the chapter includes all customer owned generators connected in parallel and operating with the Company s electrical system within all territories served by the Company 508 AVAILABILITY Distributed Generation is available for single and three phase customers where a part or all of the electrical requirements of the customer are supplied by the customer s generating facilities Characteristics of the Company s electrical system vary throughout the territory and not every size voltage and phase generator can be connected at every location 509 PERMMISION TO CONNECT The customer shall consult the Company prior to the installation of a parallel generator and supply the Company with the required electrical drawings and data for the proposed installation in all cases Company permission is required for each installation and such permission granted shall not constitute a Company guarantee or imply Company liability for satisfactory operation of the customer s generator The Company may specify and require certain protective schemes based on the size location etc of the generating unit proposed Call 1 800 972 5325 or visi
27. tor operation The power factor of a generator shall not be less than required The customer is responsible for providing power factor correction for generation below the requirement value See Technical Guidelines and Distributed Generation Contract Requirements 523 OPTIONAL STANDBY GENERATOR USED WITH PARALLEL GENERATION Where a customer operates both a parallel generator and an optional standby generator the standby generator must be installed in strict accordance with the connection and transfer switch requirements of Chapter 5 part A 524 DRAWINGS Sample diagrams and metering drawings are shown in Sections 525 thru 532 Consult Alliant Energy for larger installations or drawings not shown A REQUIRED LABELING EXAMPLES DUAL POWER SOURCE PHOTOVOLTAIC CIRCUIT INTERCONNECTION DISCONNECT SWITCH Operating Voltage 120 240 Maximum Current 40 Amps Maximum Power 9 12 KW ae Page 129 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 525 NET METERED SELF CONTAINED DISTRIBUTED GENERATION 100 300AMP 1 PH 120 240 100 300 AMP 1 PH 120 208 C No Description Utility furnishes Customer furnishes installs and installs and maintain maintains 1 Underground service cable a 2 Meter outside mC LEM nr Outside or Inside 4 Rigidconduit ooo modify lugs see note 6 below DEEP rm onu insulating Pushing b
28. tory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements 6 Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 146 2 ALLIANT aal ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 531 DUPLEX MANUFACTURED PEDESTAL DISTRIBUTED GENERATION CONTINUED 100 300 AMPS 1 PH 120 240 100 300 AMPS 3 PH 120 208 N DG Disconnect DG METER BD E TO DG SYSTEM oon one f Nc HOUSE 4 METER i 29 SERVICE ENTRANCE GROUND LNE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter socket for multiple or net metering Page 147 2 ALLIANT ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 532 DUAL INSTRUMENT TRANSFOMER DISTRIBUTED GENERATION OPTIONAL WALL MOUTED PAD MOUNTED OR ON FIELD BUILT 301 800 AMP 1PH 120 240 301 800 AMP 3 PH 120 208 301 800 AMP 3 PH 277 480 WENN ddl maintains installs amp maintains Meter 0 X S y O 2 j Apprvedmetersocket X 3 Approved DG meter socket 5 AA LEN ER px General Service CT Cabinet Approved termination cabinet Grounding in accordance with code see page 150 152 Optional Equipment
29. ushing E H 9 Conduit Conduit straps 10 Grounding in accordance with _ code see M 150 152 NOTES The applicant shall label the interconnection disconnect switch Interconnection Disconnect Switch by means of a permanently attached sign with clearly visible letters The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch DG disconnect must have a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect Modification to lugs in meter socket are not allowed and may violate UL rating The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 130 2 ALLIANT ENERGY ELECTRIC SERVICE RULES GENERATION Chapter 5 Issued Jan 2015 525 N
30. ve a visible break and able to be locked open Or be capable of disconnecting and de energizing the residual voltage in DG facility The DG disconnect and its location shall conform to technical guidelines and state requirements Consult with Alliant Energy for details and specifications Communication intersystem bonding is not allowed on or in any metering device Intersystem bonding may only be done at the ground rod s on the Grounding Electrode Conductor or ground bus in customers main disconnect The building or structure shall have a permanent plaque or directory within 10 feet of the meter which complies with the NEC 705 10 and NEC690 56B requirements Labeling at the meter socket shall indicate dual source the voltage example 120 240 120 208 or 277 480 maximum current and maximum power KW of solar DG source Page 144 y ALLIANT ala ENERGY ELECTRIC SERVICE RULES GENERATION Issued Jan 2015 Chapter 5 530 GENERAL SERVICE INSTRUMENT METERED DG WITH o TO 300 AMP SELF CONTAINED DISTRIBUTED CONTINUED 301 to 800 PH 277 480 VOLT GROUND LHE 530A NET METERED SELF CONTAINED WHERE SERVICE PLUS DG DOES 120 OF SERVICE PANEL BUSS CAPACITY 100 to 200 AMP 3 PH 277 480 See Notes on Previous Page SERVICE ENTRANCE All DG Equipment must be permanently labeled according to NEC 705 10 AE requires self sticking brass or rigid plastic permanent label at meter so

CHAPTER 5 - Alliant Energy

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