You will need three cable wires for
each installed DC power supply: two input cables and a grounding cable. We recommend
that each cable have differently colored insulation, as described in "Required Tools and
Materials for Installing a 750 W DC Power Supply."
To prepare the cable wires, follow these steps:
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On each cable wire, strip 6 mm (0.25 inch) of insulation from one end.
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Repeat step 1 for the other two
cable wires.