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An Exploratory Study of Dielectric Breakdown Voltages for Residential Wiring.

机译:住宅布线介质击穿电压的探索性研究。

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摘要

Residential electric circuits are subjected to surge voltages resulting from load switching in buildings,and from external causes such as lightning. Laboratory test data are presented on high voltage breakdown values for armored cable (type AC cable),nonmetallic-sheated cable (type NM),flat conductor cable,and duplex receptacles. Dielectric withstand voltage test requirements in current standards for residential wiring devices vary over a wide range. In some cases,the standard test voltage values for both wiring and wiring devices are less than surge voltages recorded on wiring in residences. Also,field-recorded voltage wave forms and rates of their application are different from those used in standard withstand voltage tests.

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