New Exposed Wire

The earliest home wiring systems used wires like this, with only a positive and negative conductor wrapped in fabric insulation. Today's wiring has positive, negative and ground conductors insulated by PVC plastic.

CREDIT: Photos courtesy of Underwriters Laboratories (UL)

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New Exposed Wire The earliest home wiring systems used wires like this, with only a positive and negative conductor wrapped in fabric insulation. Today's wiring has positive, negative and ground conductors insulated by PVC plastic. CREDIT: Photos courtesy of Underwriters Laboratories (UL) Print \| E-mail \| Download \| Close