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Migration of K-wires can occur; instead of backing out the wire can move deeper. K-wires passed across the acromioclavicular (AC) joint in the shoulder have been found to migrate into the chest with the potential to penetrate the major blood vessels, the trachea, [3] lung, [4] or the heart. [5]
A gooseneck contains a wire with a round cross-section inside, which is shaped like a spring in the shape of a helix.A wire with a triangular cross-section is wound around this, so that the tips of the triangle protrude between the round wires into the inner spiral. [1]
The plate curved around the torso and ended near the armpits, held in place and adjusted to a snug fit by shoulder straps that crossed the back, forming an X-shape. It was secured with hook-and-eye closures. [3] [4] The underwire bra design emerged and took hold in the United States starting in the 1930s.
The conduit methods were known to be of better quality, but cost significantly more than K&T. [2] In 1909, flexible armored cable cost about twice as much as K&T, and conduit cost about three times the price of K&T. [6] Knob and tube wiring persisted since it allowed owners to wire a building for electricity at lower cost.
A wire is a flexible, round bar of metal. Wires are commonly formed by drawing the metal through a hole in a die or draw plate. Wire gauges come in various standard sizes, as expressed in terms of a gauge number or cross-sectional area. Wires are used to bear mechanical loads, often in the form of wire rope.
Liquidtight flexible metal conduit (LFMC) is a metallic flexible conduit covered by a waterproof plastic coating. The interior is similar to FMC. The interior is similar to FMC. Flexible metallic tubing ( FMT ; North America ) is not the same as flexible metallic conduit (FMC) which is described in US National Electrical Code (NEC) Article 348.