IEC 60121:1960 pdf download 工业用电工退火铝导线的建议

IEC 60121:1960 pdf download,Recommendation for commercial annealed aluminium electrical conductor wire.工业用电工退火铝导线的建议
1.Scope
This recommendation applies to commercial annealed aluminium electrical conductor wire havinga diameter greater than 1 mm (0.0394 in).
2.·Object
The object of this recommendation is to prescribe physical and mechanical property values whichmay be used internationally for this type of wire.
3. Resistivity
3.1 The volume resistivity at 20C shall not exceed 0.0280 ohm.mm2/m (16.843 ohm.circ mil/ft).
3.2 The errors of measurement,which,taken together,shall not be greater than three parts in onethousand,are included in this value.
1. 范围
本建议适用于直径大于1毫米（0.0394英寸）的商用退火铝电导线。
2. 目的
本建议的目的是规定可在国际上用于此类电线的物理和机械性能值。
3. 电阻率
3.1 在20摄氏度下的体积电阻率不得超过0.0280欧姆·毫米^2/米（16.843欧姆·圆毫米/英尺）。
3.2 测量误差合计不得超过千分之三，包含在此数值中。