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MARKINGS, LABELS AND WIRING SIGNS <br />A. Purpose: Provide emergency responders with appropriate warning and guidance with respect to isolating solar electric system. <br />This can facilitate identifying energized electrical lines that connect solar panels to the inverter, as these should not be cut when <br />venting for smoke removal. <br />B. Main Service Disconnect. <br />1. Residential buildings - The marking main be placed within the main service disconnect. The marking shall be placed <br />2. Commercial buildings - Tha marking shall be placed adjacent to the main service disconnect clearly visible from the location <br />where the level is operated. <br />3. Markings: Verbiage, Format and Type of Material. <br />a. Verbiage: CAUTION: SOLAR ELECTRIC SYSTEM CONNECTED <br />b. Format: White lettering on a red background. Minimum 3/8 inches letter height. All letters shall be capitalized. Arial or <br />similar font, non bold. <br />c. Material: Reflective, weather resistant material suitable for the environment (use UL - 969 as standard for weather rating). <br />Durable adhesive materials meet this requirement. <br />C.Marking Requirements on DC conduit, raceways, enclosures, cable assemblies, DC combiners and junction boxes: <br />1. Markings: Verbiage, Format and Type of Material. <br />a. Placement : Markings shall be placed every 10 feet on all interior and exterior DC conduits, raceways, enclosures, and <br />cable assemblies, at turns, above and for below penetrations, all DC combiners and junction boxes <br />b. Verbiage: CAUTION: SOLAR CIRCUIT Note: The format and type of material shall adhere to "V. V-3b, c" of this <br />requirement. <br />c. Inverters are not required to have caution markings <br />1. Marking is required on all interior and exterior DC conduit raceways,enclosures,cable assemblies,and junction boxes,combiner <br />boxes and disconnects. <br />2. The materials used for marking shall be reflective,weather resistant material suitable for the environment. <br />3. Marcking shall contain the words: WARNING : PHOTOVOLTAIC POWER SOURCE. <br />4. Marking shall be placed adjacent to the main service disconnect in a location clearly visible from the location where the <br />disconnect is operated. <br />INVERTER <br />*if applicable <br />PV ARRAY J BOX <br />1 <br />2 7 <br />INTEGRATED <br />DC DISCONNECT <br />4 5 7 <br />9 <br />7 <br />PV SUB-PANEL <br />* if applicable <br />11 8 <br />10 <br />SUB-PANEL <br />* if applicable <br />7 <br />9 <br />8 <br />10 <br />AC <br />DISCONNECT <br />* if applicable <br />7 <br />7 <br />9 <br />METER <br />MAIN SERVICE <br />PANEL <br />8 <br />12 10 <br />CAUTION <br />1314 N MCLEAN DR, SANTA ANA <br />POWER TO THIS BUILDING IS SUPPLIED FROM THE FOLLOWINGSOURCES WITH MAIN DISCONNECTS LOCATED AS SHOWN <br />LABEL 12 <br />SOLAR PV SYSTEM EQUIPPED <br />WITH RAPID SHUTDOWN <br />TURN RAPID SHUTDOWN <br />SWITCH TO THE <br />"OFF" POSITION TO <br />SHUT DOWN PV SYSTEM <br />AND REDUCE <br />SHOCK HAZARD <br />IN THE ARRAY <br />SOLAR ELECTRIC <br />PV PANELS <br />LABEL 1 <br />CAUTION <br />AUTHORIZED SOLAR <br />PERSONNAL ONLY! <br />LABEL 2 <br />CAUTION <br />SOLAR DC CURRENT PRESENT <br />DURING DAYLIGHT HOURS <br />(STICKER TO BE LOCATED ON <br />CONDUIT WITH DC CURRENT <br />EVERY 4' HORIZONTALLY OR <br />10' VERTICALLY AND 1' FROM <br />EACH SIDE OF A BEND) <br />LABEL 7 <br />AC DISCONNECT <br />AC PHOTOVOLTAIC POWER SOURCE <br />RATED AC OUTPUT CURRENT:21.17 A MAXNOMINAL AC OPERATING VOLTAGE: 240 Vac <br />LABEL 8 <br />THIS PANEL FED BY <br />MULTIPLE SOURCES <br />(UTILITY & SOLAR) <br />LABEL 3 <br />WARNING! <br />ELECTRIC SHOCK HAZARD. <br />IF GROUND FAULT IS INDICATED, <br />NORMALLY GROUNDED <br />CONDUCTORS MAY BE <br />UNGROUNDED AND ENERGIZED. <br />LABEL 4 <br />DC DISCONNECT <br />DC PHOTOVOLTAIC POWER SOURCE <br />RATED MAX POWER POINT CURRENT- <br />RATED MAX POWER POINT VOLTAGE- <br />MAXIMUM SYSTEM VOLTAGE- <br />SHORT CIRCUIT CURRENT- <br />AMPS <br />VOLTS <br />VOLTS <br />AMPS <br />LABEL 5 <br />WARNING! <br />ELECTRIC SHOCK HAZARD. <br />DO NOT TOUCH THE TERMINALS. <br />TERMINALS ON BOTH THE LINE AND <br />LOAD SIDES MAY BE ENERGIZED IN <br />THE OPEN POSITION. <br />LABEL 6 <br />PV SUB-PANEL ONLY <br />(TO BE LOCATED ON <br />SUB-PANEL ONLY <br />WHEN SUB-PANEL IS <br />DEDICATED FOR PV ONLY) <br />LABEL 9 LABEL 10 <br />SOLAR <br />(STICKER LOCATED <br />INSIDE PANEL <br />NEXT TO SOLAR BREAKER) <br />WARNING! <br />INVERTER OUTPUT CONNECTION. DO NOT <br />RELOCATE THIS OVERCURRENT DEVICE <br />(STICKER LOCATED <br />INSIDE PANEL <br />BELOW PV BREAKER) <br />LABEL 11 <br />PV LOAD CENTER SIZED FOR PV <br />BREAKERS ONLY OR RENDERED UNABLE <br />TO ACCEPT ANY ADDITIONAL LOADS. <br />(STICKER LOCATED <br />ON THE PV SUB PANEL) <br />DIRECTORY <br />Permanent directory or plaque providing location of service disconnecting means and photovoltaic system disconnecting means, if <br />not located at the same location. (Plaques shall be metal or plastic, with engraved or machine printed letters, or electro-photo <br />plating, in a contrasting color to the plaque. Plaques shall be permanently attached to the equipment or in the required location <br />using an approved method that is suitable to withstand the environment to which it is exposed. Plaques and signages shall meet <br />legibility, defacement, exposure and adhesion requirements of Underwriters Laboratories marking and labeling system <br />969(UL969). <br />1314 N McLean Dr- <br />20182344REV3/27/2024