A structural unit employed in cable , consisting of four separately insulated conductors twisted together 电缆使用的一种结构形式，它由四根各自绝缘的导线相互绞合而成。
Standard specification for perpendicularly oriented mineral fiber roll and sheet thermal insulation for pipes and tanks 管子和容器用垂直向矿物纤维薄板卷和薄板热绝缘的标准规范
Standard test method for critical radiant flux of exposed attic floor insulation using a radiant heat energy source 暴露于辐射热能源的搁楼地板绝缘的临界辐射通量的标准试验方法
Specifications for particular types of winding wires - part 14 : polyvinyl acetal enamelled round aluminium wire , class 105 特种绕组线规范.第14部分:等级105聚乙烯醇漆绝缘的圆铝线
Standard specification for concentric - lay - stranded conductors of 8000 series aluminum alloy for subsequent covering or insulation 次级涂层或绝缘的8000系列铝合金同芯绞捻导线标准规范
Low - frequency miniature equipment wires with solid or stranded conductor , fluorinated polyhydrocarbon type insulation , single 低频微型设备用氟化多聚碳类绝缘的实心或绞合导体单芯电线
Standard specification for ozone - resistant thermoplastic elastomer insulation for wire and cable , 90 c dry 75 c wet operation 在干90湿75时电线和电缆的耐臭氧热塑性弹性体绝缘的标准规范
Blank detail specification - fixed polystyrene film dielectric metal foil d . c . capacitors - assessment level e ; german version en 130901 : 1997 空白详细规范.固定式聚苯乙烯薄膜电介质绝缘的金属箔
Specification for impregnated paper - insulated lead or lead alloy sheathed electric cables of rated voltages up to and including 33000 v 额定电压在33kv及以下的铅与铅合金护套浸渍纸绝缘的电缆规范
Conduits and fittings for electrical installations . circular cross - section , insulating , pliable , non - flame propagating conduits . type ico 电气装置用导管和接头. icd型绝缘的柔韧的阻燃的圆截面导管
