To ensure the quality of photovoltaic wires and compliance with relevant standards, can be considered from the following aspects:

The cable size (square) required for a photovoltaic project mainly depends on the scale of the project, current requirements, cable length, and the material and type of cable selected.

When choosing a cable, consumers usually look at key factors such as the cable's performance, specifications and brand. However, there are often poor quality cables on the market, which brings problems to consumers. Here, we explore an intuitive way to judge the quality of cable - observing the color of the wire core.

WDZN-RYJS -- Copper core low smoke halogen-free flame retardant crosslinked polyolefin insulated twisted connection flexible wire

In the field of wire, copper wire and aluminum wire each occupy a place, but they have different characteristics and use scenarios. Copper wire is favored by many people for its large load capacity, superior flexibility, low resistivity and stability. However, this superiority comes at a price - copper wire costs almost three and a half times as much as aluminum wire. Still, I would advise you not to skimp on copper wire.