架空电气铝导线用铝包钢芯线检测

架空电气铝导线用铝包钢芯线检测项目报价？  解决方案？  检测周期？  样品要求？

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GB 51145-2015煤矿电气设备安装工程施工与验收规范

本规范适用于煤矿建设电气设备安装工程的施工及验收。

TZ 10208-2008客货共线铁路电力牵引供电工程施工技术指南

本技术指南适用于旅客列车设计行车速度200 km/h的标准轨距,牵引网采用单相工频(50Hz)、标称电压为25 kV客货共线铁路新建、改建的电力牵引供电工程施工。

ASTM B779-2003钢筋加强的异型钢丝致密同芯绞捻铝导线标准规范

1.1 This specification covers shaped wire compact concentric-lay-stranded aluminum conductor, steel-reinforced (ACSR/TW) and its component wires for use as overhead electrical conductors (Explanatory Note 1 and 2).1.2 The values stated in inch-pound units are to be regarded as the standard with the exception of temperature, density, and resistivity. The SI equivalents of inch-pound units may be approximate.Note 18212;ACSR/TW is designed to increase the aluminum area for a given diameter of conductor by the use of trapezoidally shaped wires (TW). The conductors consist of a central core of round steel wire(s) surrounded by two or more layers of trapezoidal aluminum 1350-H19 wires. Different strandings of the same size of conductor are identified by type, which is the approximate ratio of steel area to aluminum area expressed in percent (Table 1, Table 2 and Table3). For the purpose of this specification, the sizes listed in Table1 and Table 2 are tabulated on the basis of the finished conductor having an area or outside diameter equal to that of specific sizes of standard ACSR so as to facilitate conductor selection.Note 28212;The aluminum and temper designations conform to ANSI Standard H 35.1. Aluminum 1350 corresponds to Unified Numbering System (UNS) A91350 in accordance with Practice E 527.