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[问题求助] UL 镀锡导体 搞不准电阻要求
P:2011-11-10 14:54:41
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查表UL 1581 Table 30.4
Maximum direct-current resistance of copper conductors, concentric-stranded ASTM Class B
with each strand coated with tin or a tin/lead alloy and compressed-stranded ASTM Class B with
each strand coated
Max. 36.7欧姆/公里 @20摄氏度
optical fiber testing technology - 光纤测试技术 (0) 投诉
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