Photovoltaic panel wiring color standard

Which wiring methods are applicable for photovoltaic (PV) systems?

In general, the wiring methods presented throughout the Code are applicable for photovoltaic (PV) systems. More specifically, Part IV of Art. 690 is titled “Wiring Methods,” which helps us establish the fundamental requirements for conductor selection and installation for PV systems.

What type of wiring is allowed in a PV system?

(A) Wiring Systems. All raceway and cable wiring methods included in this Code, other wiring systems and fittings specifically listed for use in PV arrays, and wiring as part of a listed system shall be permitted. Where wiring devices with integral enclosures are used, sufficient length of cable shall be provided to facilitate replacement.

How do I identify a PV system DC circuit conductor?

(1) Identification. PV system dc circuit conductors shall be identified at all termination, connection, and splice points by color coding, marking tape, tagging, or other approved means.

What type of wire does a PV module use?

The cables also have quick-connect plugs installed to facilitate easier field wiring associated with PV modules. The home run cables from the modules to the external junction or combiner box for the entire array will use the USE-2 or PV wire called out in 690.31 (A).

What are the different types of solar panel wiring?

Learning the basics of solar panel wiring is one of the most important tools in your repertoire of skills for safety and practical reasons, after all, residential PV installations feature voltages of up to 600V. There are three wiring types for PV modules: series, parallel, and series-parallel.

What wiring methods are allowed in a PV array?

690.31Wiring Methods. (A) Wiring Systems. All raceway and cable wiring methods included in this Code, other wiring systems and fittings specifically listed for use in PV arrays, and wiring as part of a listed system shall be permitted.