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ASTM F1669M-12

Current Revision

Standard Specification for Insulation Monitors for Shipboard Electrical Systems [Metric]

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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.


This specification covers insulation monitoring devices for stripboard 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 (Type I) or dc ungrounded electrical systems (Type II). However, devices used in ac ungrounded systems without dc components are not included. The devices shall undergo conformance and routine tests to ensure that the device meets the requirements specified. Conformance tests shall included testing of response time, peak voltage, input impedance or resistance, built-in meters, and impulse voltage withstand capabilities, whereas routine tests shall include testing of response value, self-test function, built-in meters, and voltage.


SDO ASTM: ASTM International
Document Number F1669
Publication Date Oct. 1, 2012
Language en - English
Page Count 4
Revision Level 12
Supercedes
Committee F25.10
Publish Date Document Id Type View
Oct. 1, 2012 F1669M-12 Revision
Jan. 1, 1996 F1669M-96 Revision
April 1, 2018 F1669M-12R18 Reaffirmation
May 1, 2007 F1669M-96R07 Reaffirmation
June 10, 1996 F1669M-96R02 Reaffirmation