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METHOD OF AND APPARATUS FOR MAKING MINERAL INSULATED CABLE AND MINERAL INSULATED CABLE MADE BY SUCH METHOD OR APPARATUS
METHOD OF AND APPARATUS FOR MAKING MINERAL INSULATED CABLE AND MINERAL INSULATED CABLE MADE BY SUCH METHOD OR APPARATUS
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机译:用这种方法或设备制造矿用绝缘电缆和矿用绝缘电缆的方法和装置
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摘要
Blocks (60, 65) of magnesium oxide or other mineral insulant are formed with grooves (62). Copper conductors (63) are laid in the grooves (62) and the blocks (60, 65) are held in place on the conductors (63) by a layer of insulating tape (66). A copper tube (68) is formed around the layer (66), and the whole is then subjected to alternating steps of drawing or rolling and annealing to form a mineral insulated cable.
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