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SINGLE CONDUCTOR 12-GAUGE BLACK KNOB & TUBE WIRE
SINGLE CONDUCTOR 12-GAUGE BLACK KNOB & TUBE WIRE
SINGLE CONDUCTOR 12-GAUGE BLACK KNOB & TUBE WIRE
SINGLE CONDUCTOR 12-GAUGE BLACK KNOB & TUBE WIRE

SINGLE CONDUCTOR 12-GAUGE BLACK KNOB & TUBE WIRE

$2.00

SKU W121CRBKXXF
Buy by the foot or spool:
By the foot
By the 100-foot spool
By the 250-foot spool
By the 500-foot spool

Knob & tube wire is a reproduction of wire used for house wiring from the 1880s to the 1930s. The wire is called "knob and tube" because it was run through porcelain wire clamps, called knobs, to hold it to the wall. The wire was run through porcelain tubes where it was run through the wood parts of the house frame. There is a description and several great photos of knob and tube wiring at Wikipedia's knob and tube page.

Please note that this wire is solid core, which means it is one solid piece of copper, NOT made of several finer strands. As a result, the wire is stiff, not bending easily, and holds its shape when bent. The wire is single-conductor with a lacquered, black cotton braid over PVC insulation.

This is a Sundial Wire exclusive, not available elsewhere, and was manufactured especially for replacing existing knob and tube wiring in historical sites, museums, diplays, etc. It is also useful for any application requiring a heavy duty single conductor wire.

Usage

This wire was manufactured especially for replacing existing knob and tube wiring in historical sites, museums, displays, etc. It is also useful for any application requiring a heavy duty single conductor wire.

BUILDING CODES PROHIBIT REPAIRING EXISTING KNOB AND TUBE WIRING IN BUILDINGS. IT MUST BE FULLY REPLACED IF IT IS TO BE ALTERED. PLEASE CONSULT YOUR BUILDING INSPECTOR BEFORE MAKING ANY CHANGES TO EXISTING KNOB AND TUBE WIRING. THIS WIRE IS INTENDED FOR MUSEUM, THEATRICAL, AND NON-BUILDING WIRING.

You should consult a qualified electrician to ensure that the gauge of the wire you select can safely support the electrical load of your lamp or small appliance over the length of wire you are using.

Attributes

Approximate Diameter (+/- 2 mm): 5.2 mm, about 7/32 in
Made in: USA
Maximums: 600 Volts, 105 degrees Centigrade 
UL: NOT UL-Listed.

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