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About This Item
Full Description
1.1 This specification covers electrical insulation monitoring devices, intended as permanently installed units, for use in the detection of ohmic insulation faults to ground in active, ac ungrounded electrical systems.
1.2 Limitations - This specification does not cover devices which are not intended for operation for: dc ungrounded systems or ac ungrounded systems with dc components unless ac to dc conversion is isolated from the monitored system with transformers.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
Document History
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ASTM F1207M-12(2018)
Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]- Most Recent
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ASTM F1207M-12
Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]- Historical Version
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ASTM F1207M-96(2007)
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Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]- Historical Version
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ASTM F1207M-96(2002)
Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]- Historical Version