标准摘要
[中文适用范围]： 本国际标准规定了用于电气装置（包括通信和光纤）的 EHDERS（超重型电气刚性钢）导管、接头、接头和弯头的要求。该标准还规定了螺纹 [外文原描述]： This International Standard specifies requirements for EHDERS (extra heavy-duty electrical rigid steel) conduits, couplings, nipples and elbows for electrical installations, including communications and fibre optics. This standard also specifies threads for these components. It is not applicable to the conduits specified in IEC 60423.
英文名称Extra heavy-duty electrical rigid steel conduits