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// CODE SNIPPET

1204.5 Buildings With Rapid Shutdown

California Fire Code 2019 > 12 Energy Systems > 1204 Solar Photovoltaic Power Systems > 1204.5 Buildings With Rapid Shutdown
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Buildings with rapid shutdown solar photovoltaic systems shall have permanent labels in accordance with Sections 1204.5.1 through 1204.5.3.

1204.5.1 Rapid Shutdown Type

The type of solar photovoltaic system rapid shutdown shall be labeled with one of the following:

  1. For solar photovoltaic systems that shut down the array and the conductors leaving the array, a label shall be provided. The first two lines of the label shall be uppercase characters with a minimum height of 3/8 inch (10 mm) in black on a yellow background. The remaining characters shall be uppercase with a minimum height of 3/16 inch (5 mm) in black on a white background. The label shall be in accordance with Figure 1204.5.1(1) and state the following:

    SOLAR PV SYSTEM EQUIPPED
    WITH RAPID SHUTDOWN.
    TURN RAPID SHUTDOWN SWITCH
    TO THE "OFF" POSITION TO SHUT
    DOWN PV SYSTEM AND REDUCE
    SHOCK HAZARD IN ARRAY.

  2. For photovoltaic systems that only shut down conductors leaving the array, a label shall be provided. The first two lines of the label shall be uppercase characters with a minimum height of 3/8 inch (10 mm) in white on a red background and the remaining characters shall be capitalized with a minimum height of 3/16 inch (5 mm) in black on a white background. The label shall be in accordance with Figure 1204.5.1(2) and state the following:

    THIS SOLAR PV SYSTEM EQUIPPED
    WITH RAPID SHUTDOWN. TURN RAPID
    SHUTDOWN SWITCH TO THE "OFF"
    POSITION TO SHUT DOWN CONDUCTORS
    OUTSIDE THE ARRAY. CONDUCTORS
    WITHIN ARRAY REMAIN
    ENERGIZED IN SUNLIGHT.

FIGURE 1204.5.1(1)

LABEL FOR SOLAR PV SYSTEMS THAT REDUCE SHOCK HAZARD WITHIN ARRAY AND SHUT DOWN CONDUCTORS LEAVING ARRAY

FIGURE 1204.5.1(2)

LABEL FOR SOLAR PV SYSTEMS THAT ONLY SHUT DOWN CONDUCTORS LEAVING THE ARRAY

1204.5.1.1 Diagram

The labels in Section 1204.5.1 shall include a simple diagram of a building with a roof. Diagram sections in red signify sections of the solar photovoltaic system that are not shut down when the rapid shutdown switch is turned off.

1204.5.1.2 Location

The rapid shutdown label in Section 1204.5.1 shall be located not greater than 3 feet (914 mm) from the service disconnecting means to which the photovoltaic systems are connected, and shall indicate the location of all identified rapid shutdown switches if not at the same location.

1204.5.2 Buildings With More Than One Rapid Shutdown Type

Solar photovoltaic systems that contain rapid shutdown in accordance with both Items 1 and 2 of Section 1204.5.1 or solar photovoltaic systems where only portions of the systems on the building contain rapid shutdown, shall provide a detailed plan view diagram of the roof showing each different photovoltaic system and a dotted line around areas that remain energized after the rapid shutdown switch is operated.

1204.5.3 Rapid Shutdown Switch

A rapid shutdown switch shall have a label located not greater than 3 feet (914 mm) from the switch that states the following:

RAPID SHUTDOWN SWITCH
FOR SOLAR PV SYSTEM

Related Code Sections


1204.5 Energy Systems, Buildings With Rapid Shutdown
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