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Standard Specification for Insulation Monitors for Shipboard Electrical Systems [Metric]
STANDARD published on 10.6.1996
Designation standards: ASTM F1669M-96(2002)
Note: WITHDRAWN
Publication date standards: 10.6.1996
SKU: NS-51105
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
ac electrical systems, dc components, dc electrical systems, electrical insulation monitoring, electrical systems, ohmic insulation faults, ICS Number Code 47.020.60 (Electrical equipment for ships or marine structures)
1. Scope | ||||||
1.1 This specification covers two (2) types of electrical system insulation monitoring devices. 1.1.1 Type I is an ac device intended as a permanently installed unit for use in the detection of ohmic insulation faults to ground in active ac ungrounded electrical systems up to 1000 VAC, having dc components up to 1500 VDC. 1.1.2 Type II is a dc device intended as a permanently installed unit for use in the detection of ohmic insulation faults to ground in dc ungrounded electrical systems up to 1500 VDC. 1.2 Limitations—This specification does not cover devices that are intended for operation in ac ungrounded systems without dc components. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 The following precautionary caveat pertains only to the test methods portion, Section 7 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||
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