Photovoltaic panel electrical box installation specifications and standards

What is a photovoltaic system standard?

Many organizations have established standards that address photovoltaic (PV) system component safety, design, installation, and monitoring. Standards are norms or requirements that establish a basis for the common understanding and judgment of materials, products, and processes.

What are the requirements for flat-plate photovoltaic modules?

These requirements cover flat-plate photovoltaic modules intended for installation in accordance with the NEC and for use in systems with a maximum system voltage of 1000 volts or less. The standard also covers compo-nents intended to provide electrical connections and for the structural mounting of PV modules.

What is the photovoltaic installation professional resource guide?

This Photovoltaic (PV) Installation Professional Resource Guide is an informational resource intended for individu-als pursuing the PV Installation Professional Certification credential offered by North American Board of Certified Energy Practitioners (NABCEP).

Are there any UK standards relating to a PV installation?

While many UK standards apply in general terms, at the time of writing there is still relatively little which specifically relates to a PV installation. However, there are two documents which specifically relate to the installation of these systems that are of particular relevance:

What are the grounding and bonding requirements for PV systems?

The ground-ing and bonding requirements for PV systems are covered in NEC Article 690 Part V and Article 250. current-carrying conductor in an electrical system to ground (earth). Commonly, this connection is made at the supply source, such as a transformer or at the main service disconnecting means.

What are the NFPA requirements for PV systems?

The requirements for PV systems and most other electrical installations are governed by the National Electrical Code (NEC), NFPA 701. Notable exceptions include vehicles, boats, aircraft, trains, and certain utility-controlled properties such as power plants, substations and distribution systems [90.2].