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In both those instances the white wire should be identified as being hot, usually with black tape inside junction boxes. The neutral wire is identified by gray or white insulated wire, perhaps using stripes or markings. With lamp cord wire the ribbed wire is the neutral, and the smooth wire is the hot. NEC 2008 400.22(f) allows surface marking ...
This does not include the uninsulated ground wire. For instance, if the cable lists "12-2 AWG", it means there are two insulated 12-gauge wires (a black and a white wire), plus a ground wire. If the label says "12-3", this cable has four conductors—three 12-gauge insulated wires and a bare copper ground wire. [5]
Modern two or three-wire+ground PVC-insulated cable (e.g., NM-B), produced by such brands as Romex [citation needed] Aluminum wire was used in the 1960s and 1970s as a cheap replacement for copper and is still used today, but this is now considered [by whom?] unsafe, without proper installation, due to corrosion, softness and creeping of ...
The first rubber-insulated cables for US building wiring were introduced in 1922 with US patent 1458803, Burley, Harry & Rooney, Henry, "Insulated electric wire", issued 1923-06-12, assigned to Boston Insulated Wire and Cable . These were two or more solid copper electrical wires with rubber insulation, plus woven cotton cloth over each ...
Non-metallic sheathed cable (or nonmetallic building wire, NM, NM-B) [6] Armored cable (or BX) [6] Multicore cable (consist of more than one wire and is covered by cable jacket) Paired cable – Composed of two individually insulated conductors that are usually used in DC or low-frequency AC applications
Trying to complete a wire-to-wire victory for her third LPGA Tour title, Kim holed out from greenside bunkers for eagle on the par-5 ninth and birdie on the par-4 14th. The 29-year-old South ...
Wire sized 1 AWG is referred to as "one gauge" or "No. 1" wire; similarly, thinner sizes are pronounced "x gauge" or "No. x" wire, where x is the positive-integer AWG number. Consecutive AWG wire sizes thicker than No. 1 wire are designated by the number of zeros: No. 0, often written 1/0 and referred to as "one-aught" or "single-aught" wire
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