| 2015-04-28 08:27:19 | FIELD INSPECTION CHECKLIST FOR ARRAY: |
| | |
| | _____ PROVE MODEL# OF PROPOSED PV MODULES AND MODEL# OF |
| | INSTALLED PV MODULES MATCH PRODUCT SPEC SHEETS [690.51] |
| | _____ PV MODULES ARE LISTED TO UL 1703 STANDARD [110.3] |
| | _____ ARRAY CONDUCTORS ARE NEATLY AND PROFESSIONALLY |
| | HELD IN PLACE, GROUPED AND SEPARATED [690.4 B] |
| | _____ CHECK CONNECTORS ARE POLARIZED, |
| | NON-INTERCHANGEABLE AND UNIQUE [690.33 A] |
| | _____ PROVE CONNECTORS STATE ?DO NOT DISCONNECT UNDER |
| | LOAD? [690.33 E 2] |
| | _____ CHECK THAT ELECTRICAL JUNCTION BOXES ARE READILY |
| | ACCESSIBLE, LISTED AND SUITABLE |
| | FOR ENVIRONMENT (NEMA) |
| | _____ ARRAY ATTACHMENTS ARE FASTENED AND SEALED |
| | ACCORDING TO ATTACHMENT DETAIL IN PLANS |
| | |
| | CONDUCTORS |
| | |
| | _____ CONDUCTOR TYPES USE-2 OR PV WIRE FOR EXPOSED ARE |
| | 90? C WET RATED AND SUNLIGHT |
| | RESISTANT [690.31(B)] [NOTE 2008 AND 2011 NEC RESTRICT |
| | EXPOSED SINGLE CONDUCTOR |
| | WIRING TO USE-2 AND LISTED PV WIRE]. IF IN CONDUIT: |
| | RHW-2, THWN-2 OR XHHW-2 90? C WET RATED CONDUCTORS ARE |
| | REQUIRED [310.15] |
| | _____ CHECK CONDUCTORS INSULATION RATINGS AT 90? C [UL |
| | 1703] TO ALLOW OPERATION AT ARE 70? C+ NEAR MODULES AND |
| | IN CONDUIT EXPOSED TO SUNLIGHT (ADD 17-20? C TO AMBIENT |
| | TEMPERATURE-2005NEC), (SEE TABLE 310.15(B)(2) IN |
| | 2008NEC OR TABLE 310.15(B)(3)(C) |
| | IN 2011NEC) |
| | |
| | NOTE: TEMPERATURE-DERATED AMPACITY CALCULATIONS ARE |
| | BASED ON 156% OF THE SHORT CIRCUIT |
| | CURRENT (ISC) AND THE DERATED AMPACITY OF THE |
| | OVERCURRENT DEVICE IS MATCHED [690.8,9] |
| | |
| | _____ STRAIN RELIEFS/CABLE CLAMPS ARE USED ON ALL CABLE |
| | AND CORDS [300.4, 400.10] |
| | _____ CONDUCTORS SHALL BE LISTED FOR THE APPLICATION |
| | AND ENVIRONMENT. USE OF FINE STRANDED, FLEXIBLE |
| | CONDUCTOR CABLES SHALL BE PROPERLY TERMINATED WITH |
| | TERMINALS RATED FOR THESE CONDUCTORS [690.31 (E)(4)] |
| | |
| | _____ EXPOSED CONDUCTORS SHALL BE READILY ACCESSIBLE |
| | AND IN A RACEWAY IF OVER 30 VOLTS ? |
| | RACEWAYS CANNOT BE INSTALLED ON MODULES. CONDUCTORS |
| | SHOULD BE INSTALLED NOT READILY |
| | ACCESSIBLE. |
| | _____ DC CONDUCTOR COLORS ARE THE SAME AS AC. GROUNDED |
| | CONDUCTORS SHALL BE WHITE AND |
| | EQUIPMENT GROUNDING CONDUCTORS ARE GREEN, GREEN/YELLOW |
| | OR BARE. |
| | |
| | NOTE: 1) |
| | UNGROUNDED PV ARRAY CONDUCTORS ON UNGROUNDED ARRAYS |
| | WILL NOT BE WHITE IN COLOR. |
| | NOTE 2) TRADITIONALLY ALL PV SOURCE ARRAY WIRING WILL |
| | BE BLACK. NON-BLACK COLORS HAVE |
| | PROVEN TO NOT BE AS DURABLE IN THE UV RICH ENVIRONMENT |
| | AS BLACK. |
| | |
| | GROUNDING: |
| | |
| | _____ CHECK MODULE CONNECTIONS AND ALLOW FOR REMOVAL |
| | WITHOUT INTERRUPT GROUNDED CONDUCTOR [690.4 C] |
| | _____ 2 WIRE OVER 50 VOLTS SHALL BE GROUNDED [690.41] |
| | _____ CHECK POINT OF SYSTEM GROUNDING CONNECTION |
| | [690.42] IS AT ANY POINT ALONG PV OUTPUT CIRCUIT |
| | _____ CHECK EQUIPMENT GROUNDING OF METAL PARTS ON SOLAR |
| | PANEL FRAMES ARE GROUNDED PER |
| | 250.134 AND 250.136 |
| | _____ INSURE EITHER UNIVERSAL GROUNDING CLIPS (UGC) OR |
| | WEEBS? ARE LISTED AND IDENTIFIED FOR BONDING PANELS TO |
| | GROUNDED MOUNTING STRUCTURES [690.43] |
| | _____ EQUIPMENT GROUNDING CONDUCTOR (EGC) SHALL BE |
| | CONTAINED IN SAME RACEWAY WHEN |
| | LEAVING VICINITY OF ARRAY [690.43] |
| | _____ EGC SIZED NO SMALLER THAN #14 AND NOT SMALLER |
| | THAN LARGEST CURRENT CARRYING CONDUCTOR [250.122]. |
| | _____ CHECK AC/DC IS BONDED AT INVERTER [690.C 1] |
| | _____ CHECK EQUIPMENT GROUNDING CONDUCTORS ARE SIZED IN |
| | ACCORDANCE WITH 690.45(A) |
| | 250.122 OR (B) WHEN NO GROUND FAULT EGC SIZED TO TWO |
| | (2) TIMES THE TEMP AND CONDUIT |
| | FILL CONDUCTOR AMPACITY. |
| | _____ ARRAY GROUNDING ELECTRODE CONDUCTORS (GEC) NOT |
| | SMALLER THAN #6 AND COMPLIES WITH 250.120(C) |
| | |
| | _____ SYSTEMS WITH AC ONLY (MICRO INVERTERS) THE |
| | GROUNDING ELECTRODE SYSTEM SHALL BE |
| | INSTALLED PER [690.47(A) IN ACCORDANCE WITH [250.50 |
| | THRU 250.60] AND [250.64] |
| | _____ SYSTEMS WITH BOTH AC AND DC SHALL BE INSTALLED |
| | PER [690.47 (C)(1) THRU (C)(8) AND SIZED PER 250.66 |
| | (AC) 250.166 (DC) |
| | _____ INSPECT PREMISES GROUNDING AS IT SERVES AS THE AC |
| | GROUNDING FOR PV SYSTEMS |
| | [690.47 C 8] |
| | _____ IF GROUND OR POLE MOUNT GROUNDING ELECTRODE |
| | INSTALLED PER 250.52 AND WITHIN 6 FEET |
| | [690.47D EXCEPTION 2]. |
| | _____ CHECK ELECTRODE IS CONNECTING DIRECTLY TO FRAMES |
| | AND STRUCTURES [690.47 D] |
| | _____ IF BREAKS IN RAILS OF MOUNTING STRUCTURE, CHECK |
| | FROM JUMPER [690.48] |
| | _____ BONDING, GROUNDED FITTINGS AND/OR BUSHINGS SHALL |
| | BE USED WITH METAL CONDUITS IF VOLTAGE IS OVER 250V DC |
| | [250.97] |
| | |
| | DISCONNECTING MEANS |
| | |
| | _____ DC DISCONNECTS SHALL BE LISTED FOR DC OPERATION, |
| | ARE NOT REQUIRED TO BE SUITABLE AS |
| | SERVICE EQUIPMENT AND SHALL MEET [690.17]. GENERALLY, |
| | MARINE, AUTOMOTIVE NOR TELECOM |
| | DEVICES ARE ACCEPTABLE AS THEY ARE NOT SUITED FOR USE. |
| | _____ DISCONNECTS SHALL BE READILY ACCESSIBLE EITHER ON |
| | THE OUTSIDE OF THE BUILDING OR INSIDE NEAREST THE FIRST |
| | POINT OF ENTRANCE [690.14(C)(1)] |
| | _____ NOTE MANY UL 1741 LISTED INVERTERS HAVE INTERNAL |
| | DC DISCONNECTS. INSPECT DC INPUT?S MAXIMUM CURRENT |
| | [690.53] DOES NOT EXCEED DISCONNECT LISTING AS THE |
| | DISCONNECT MAY BE A SEPARATELY MANUFACTURED PRODUCT |
| | (EITHER BY THE INVERTER MANUFACTURE OR OTHERS). |
| | |
| | AC GRID CONNECTION |
| | |
| | _____ POINT OF CONNECTION, SUPPLY SIDE. AN ELECTRICAL |
| | POWER PRODUCTION SOURCE CONNECTED |
| | SUPPLY SIDE OF THE SERVICE DISCONNECTING MEANS AS |
| | PERMITTED IN 230.82 (6) IS PERMITTED |
| | PER 705.12 (A) PERMITTING THE SUM OF THE RATINGS OF ALL |
| | OVERCURRENT DEVICES CONNECTED TO |
| | ALL POWER PRODUCTION SOURCES DO NOT EXCEED THE RATING |
| | OF THE SERVICE. |
| | _____ CIRCUIT BREAKER SHALL BE SUITABLE AS A BACKFEED |
| | BREAKER IF INSTALLED ON THE LOAD SIDE OF THE SERVICE |
| | DISCONNECTING MEANS ON THE PREMISES. |
| | NOTE: CIRCUIT BREAKER MARKED ?LINE? AND ?LOAD? HAVE |
| | BEEN EVALUATED FOR THE DIRECTION MARKED. CIRCUIT |
| | BREAKERS WITHOUT ?LINE? AND ?LOAD? HAVE BEEN EVALUATED |
| | IN BOTH DIRECTIONS. |
| | _____ CHECK THE SUM OF THE AMPERE RATING OF THE |
| | OVERCURRENT DEVICES IN CIRCUIT SUPPLYING |
| | POWER TO A BUSBAR OR CONDUCTOR DO NOT EXCEED 120% OF |
| | THE RATING OF THE BUSBAR AS |
| | CALCULATED IN [220.82 ~88] NEC 2008/11 [705.12(D)(2)] |
| | |
| | APPROPRIATE SIGNS INSTALLED 690 VI - MARKINGS: |
| | |
| | _____ CHECK PROPER SIGN CONSTRUCTION 690.53 WITH |
| | MARKINGS AS FOLLOWS: |
| | 690.53 (1) RATED MAXIMUM POWER POINT CURRENT |
| | 690.52 (2) RATED MAXIMUM POWER POINT VOLTAGE |
| | 690.53 (3) MAXIMUM SYSTEM VOLTAGE (I.E. ARRAY MAX |
| | VOLTAGE ? A CALCULATED VALUE 690.7) |
| | 690.53 (4) SHORT CIRCUIT CURRENT (I.E. SEE 690.8(A) ? A |
| | CALCULATED VALUE |
| | 690.53 (5) MAXIMUM RATED OUTPUT CURRENT OF THE CHARGE |
| | CONTROLLER (IF INSTALLED) |
| | NOTE: NEC2011 690.53 CALLS FOR A PERMANENT LABEL. LABEL |
| | SHALL BE ENGRAVED AND/OR SUNLIGHT RESISTANT (I.E. |
| | STICKERS MAY NOT MEET THE CODE) |
| | _____ THE INTERACTIVE SYSTEM (GRID TIED) POINT OF |
| | INTERCONNECTION SHALL BE MARKED IN AN ACCESSIBLE |
| | LOCATION AT THE POWER SOURCE DISCONNECTING MEANS WITH |
| | THE RATED AC OUTPUT CURRENT AND NOMINAL AC VOLTAGE |
| | [690.54]. |
| | _____ IF ENERGY STORAGE IS EMPLOYED (I.E. BATTERIES) |
| | THE ENERGY STORAGE SHALL ALSO BE MARKED WITH MAXIMUM |
| | OPERATING VOLTAGE, INCLUDING ANY EQUALIZATION VOLTAGE |
| | AND THE POLARITY OF THE GROUNDED CIRCUIT CONDUCTOR |
| | [690.55]. |
| | _____ CHECK FOR DIRECTORY I.E. A PERMANENT SIGN, PLAQUE |
| | OF DIRECTORY DENOTING ALL ELECTRICAL POWER SOURCES ARE |
| | POSTED AT A READILY ACCESSIBLE LOCATION PER [705.10] ON |
| | OR IN THE PREMISES IDENTIFYING PV POWER SOURCE SYSTEM |
| | ATTRIBUTES AT DC DISCONNECT [690.53(1~5)] |
| | _____ FACILITIES WITH STAND ALONE SYSTEMS. ANY |
| | STRUCTURE OR BUILDING WITH A PV POWER SYSTEM THAT IS |
| | NOT CONNECTED TO THE GRID IS CONSIDERED STAND ALONE. |
| | CHECK FOR A PERMANENT SIGN IDENTIFYING SERVICE |
| | DISCONNECT AND PV DISCONNECTING MEANS PER [690.56, |
| | 705.10] |
| | |
| | CHECK THAT EQUIPMENT RATINGS ARE CONSISTENT WITH |
| | APPLICATION AND SIGNS: |
| | _____ CHECK THAT INVERTER HAS A RATING AS HIGH AS MAX |
| | VOLTAGE ON PV POWER SOURCE SIGN [690.53] |
| | _____ CHECK THAT DC-SIDE OCPDS ARE DC RATED AT LEAST AS |
| | HIGH AS MAX VOLTAGE ON SIGN |
| | _____ CHECK THAT SWITCHES AND OCPDS ARE INSTALLED |
| | ACCORDING TO MANUFACTURERS SPECIFICATIONS |
| | |
| | (I.E. MANY 600VDC SWITCHES NOW REQUIRE PASSING THROUGH |
| | THE SWITCH POLES TWICE IN A |
| | SPECIFIC WAY TO PROTECT FOR ARC FLASH AND BLAST). |
| | |
| | NOTE: ALL EQUIPMENT SHALL BE INSTALLED PER 110.3(B) |
| | |
| | _____ CHECK THAT INVERTER IS RATED FOR THE SITE AC |
| | VOLTAGE SUPPLIED AND SHOWN ON THE AC POINT OF |
| | CONNECTION SIGN [690.54] |
| | _____ CHECK THAT OCPD CONNECTED TO THE AC OUTPUT OF THE |
| | INVERTER IS RATED AT LEAST 125% OF MAXIMUM CURRENT ON |
| | SIGN, AND IS NO LARGER THAN THE MAXIMUM OCPD ON THE |
| | INVERTER |
| | LISTING LABEL [690.8 A3, B1] |
| | |
| | |
| | |
| | DAVID A. HAYES |
| | CITY OF WEST PALM BEACH |
| | ELECTRICAL PLANS EXAMINER |
| | 561-805-6717 |
| | [email protected] |
| | |
