4 Minutes to know how to choose the photovoltaic wire correctly

Engineers, solar wire type also known as solar panel wire and photovoltaic wire refers to the type of wire used to connect solar panels to the rest of the photovoltaic system. How to choose the right wire for your solar system is critical to its proper functioning and keeping it intact. If you get it wrong and choose too small a PV wire for your PV system, your battery pack may not be fully charged, so your equipment may not work properly or run at full power.

Photovoltaic wire type

Photovoltaic wires are exactly the same size as solar panel wires, and are mainly classified according to their conductor types. If it has a copper core wire it is a single stranded conductor, if it has a multi core wire it is a stranded conductor. These are the two basic wire types.

The difference between solid and stranded conductors is that stranded conductors perform better in continuous vibration environments, such as mobile applications in automobiles, ships, airplanes, and trains.

The single-strand conductor type of wire is most commonly used for home wiring and should be fine for your solar system, but if you are in an area prone to constant and extremely high winds, you may want to consider the stranded conductor type of wire because it is more flexible and therefore more durable.

Photovoltaic wire thickness

Thicker PV wire costs more than thinner PV wire because it can handle more amps. When choosing the thickness of the wire, you can do it one of two ways. Be thick to be safe, or thick enough but vulnerable to sudden electrical surges.

A good way to choose wire thickness for your solar system is to buy solar panel wire large enough to handle the maximum current draw equipment you have, and use that wire for all other PV wires that run to the AC breaker panel. Use the solar panel wire size calculator to figure out the wire size you need.

Photovoltaic wire selection

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