This standard applies to grid-connected solar cell arrays (hereinafter referred to as arrays) that are installed on the ground or in structures with a standard solar cell array open-circuit voltage of 30V or more and 750V or less, and a standard solar cell array output of 100W or more. Specifies general design standards for array electrical circuits.
JIS C 8954:2006 Referenced Document
JIS C 3307 600 V Polyvinyl chloride insulated wires