ASTM F1669M船上电气系统绝缘监控器规格（米制）
日期:2012-02-08 13:40
ASTM F1669MStandard Specification for Insulation Monitors for Shipboard Electrical Systems [Metric]
ASTM F1669M船上电气系统绝缘监控器规格（米制）
This specification covers insulation monitoring devices for shipboard electrical systems. Materials covered by this specification include Type I (ac device) and Type II (dc device) electrical system insulation monitoring devices used in the detection of ohmic insulation faults to ground in either active ac ungrounded electrical systems with dc components
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