Installation, Safety & Codes

The National Electrical Code article governing solar photovoltaic systems, covering circuits, disconnects, wiring, grounding, and marking.

A conductor that bonds non-current-carrying metal parts (frames, racking, enclosures) to provide a low-impedance fault path.

Bonding joins metal parts together to keep them at the same potential; grounding connects the bonded system to earth.

Metal module frames must be bonded with listed grounding hardware (lugs, washers, or clips) that pierces the anodized coating for continuity.

PV components should be listed and labeled by a recognized testing laboratory and installed per their listing and instructions.

The local official or agency responsible for interpreting and enforcing code, issuing permits, and inspecting the installation.