600.2 Photovoltaic (PV) Powered Sign.

PV powered signs consist of all components and subassemblies for installation either as an off-grid stand-alone, on-grid interactive, or non-grid interactive system.
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PV powered signs consist of all components and subassemblies for installation either as an off-grid stand-alone, on-grid interactive, or non-grid interactive system.

Code Change Summary: A new definition was added for Solar powered signs.

In the 2017 NEC®, a Photovoltaic (PV) Powered Sign is a complete sign, powered by solar energy consisting of all components and subassemblies for installation either as an off-grid stand-alone, on-grid interactive, or non-grid interactive system.

UL 48 is the standard for safety for electric signs and has been modified to include specific provisions for PV powered signs.

Along with the new definition, new code section 600.34 was added to provide installation requirements for a PV powered sign installation.

Signs powered by a PV system require special installation instructions in addition to the applicable requirements in Article 690.

Below is a preview of the NEC®. See the actual NEC® text at NFPA.ORG for the complete code section. Once there, click on their link to free access to the 2017 NEC® edition of NFPA 70.

2017 Code Language:

600.2 Definitions.

N Photovoltaic (PV) Powered Sign. A complete sign powered by solar energy consisting of all components and subassemblies for installation either as an off-grid stand-alone, on-grid interactive, or non-grid interactive system.

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600.2 Photovoltaic (PV) Powered Sign.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

Which of the following is true of PV powered signs?

A: They can be installed as an off-grid stand-alone, on-grid interactive, or non-grid interactive system.
B: They are only permitted to be stand-alone, off-grid systems.
C: They are only permitted to be interactive, on-grid systems.
D: They are only permitted to be non-grid interactive systems.
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