ASTM F1134-94(2007)
(Specification)Standard Specification for Insulation Resistance Monitor for Shipboard Electrical Motors and Generators
Standard Specification for Insulation Resistance Monitor for Shipboard Electrical Motors and Generators
ABSTRACT
This specification covers monitoring devices (monitors) for the automatic detection and signaling of low insulation resistance values in idle electrical motors or generators, or both. Monitors are intended for permanent installation in both existing or new panels and controller enclosures designed for marine application. These insulation resistance monitors shall be classified in four types: Type I are alternating current generator monitors, Type II are alternating current generator monitors, Type III are direct current motor monitors, and Type IV are direct current generator monitors. The enclosure materials used in the construction of the monitors are to be flame-retardant and the current carrying terminals shall be made of corrosion resistant material. The monitors shall isolate their measuring circuit from the line voltage, while the motor is operating, by the use of an integral isolating relay. In the design of these monitors, environmental factors shall be considered: operating temperature range, sealing, inclination, humidity, and vibration. Also, the monitor relays, voltage characteristics and operating accuracy shall be considered in the design of these monitors. Each monitor shall be subjected to the following: visual and mechanical examination and operational test.
SCOPE
1.1 This specification covers monitoring devices (monitors) for the automatic detection and signaling of low insulation resistance values in idle electrical motors or generators, or both.
1.2 Monitors are intended for permanent installation in both existing or new panels and controller enclosures designed for marine application.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
The following safety hazards caveat pertains only to the test method described in 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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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F1134 −94(Reapproved 2007) An American National Standard
Standard Specification for
Insulation Resistance Monitor for Shipboard Electrical
Motors and Generators
This standard is issued under the fixed designation F1134; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers monitoring devices (monitors) 3.1 Definitions—In general, definitions shall be in accor-
for the automatic detection and signaling of low insulation dance with IEEE 100 (see Section 2).
resistance values in idle electrical motors or generators, or
3.2 Definitions of Terms Specific to This Standard:
both.
3.2.1 idle machine—rotary machine, when not rotating,
1.2 Monitors are intended for permanent installation in both owing to the absence of energy.
existing or new panels and controller enclosures designed for
3.2.2 monitor—device, generally located in a motor starter,
marine application.
control panel, or main switchboard, that senses the leakage
resistance of electrical machine windings to ground, while the
1.3 The values stated in SI units are to be regarded as the
monitored machine stands idle.
standard. The values given in parentheses are for information
only.
4. Monitor Classification
1.4 The following safety hazards caveat pertains only to the
4.1 Type—The insulation resistance monitors covered by
test method described in this specification: This standard does
this specification shall be of the following types:
not purport to address all of the safety concerns, if any,
4.1.1 Type I—Alternating current motor monitors.
associated with its use. It is the responsibility of the user of this
4.1.2 Type II—Alternating current generator monitors.
standard to establish appropriate safety and health practices
4.1.3 Type III—Direct current motor monitors.
and determine the applicability of regulatory limitations prior
4.1.4 Type IV—Direct current generator monitors.
to use.
4.2 Duty Rating—All monitors shall be capable of continu-
2. Referenced Documents
ous duty operations as defined in accordance with IEEE 100.
2.1 UL Standard:
5. Ordering Information
UL 94 Test for Flammability of Plastic Materials for Parts in
Devices and Appliances
5.1 Monitoring devices shall be ordered by including the
2.2 IEEE Standards:
following information:
IEEE 45 Recommended Practice for Electrical Installations
5.1.1 Purpose or Use of Monitor(s)—Application as motor
on Shipboard
or generator monitor.
IEEE 100 Standard Dictionary of Electrical and Electronics
5.1.2 Line voltage and frequency.
Terms
5.1.3 Control voltage and frequency.
2.3 Government Standard:
5.1.4 Type of starter (if motor monitor).
Title 46 Code of Federal Regulations Shipping 5.1.5 Winding configuration (if motor monitor).
5.1.6 Location of monitor.
5.1.7 Sensitivity—Set for 1 megohm (optional setting, if
This specification is under the jurisdiction of ASTM Committee F25 on Ships
requested, from 0.1 to 5 MΩ).
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
5.1.8 Remote monitoring devices.
Electrical.
Current edition approved May 1, 2007. Published June 2007. Originally 5.1.9 Special options requested (that is, test buttons, el-
approved in 1988. Last previous edition approved in 2002 as F1134 - 94(2002).
evated ambient temperature usage, and so forth.).
DOI: 10.1520/F1134-94R07.
Available from Underwriters Laboratories (UL), 333 Pfingsten Rd.,
6. Materials and Manufacture
Northbrook, IL 60062-2096, http://www.ul.com.
Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
6.1 General—Materials used in the construction of insula-
445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331, http://www.ieee.org.
tion resistance monitors are to be manufactured and tested in
Available from Superintendent of Documents, U.S. Government Printing
Office, Washington, DC 20402. accordance with IEEE 45. Materials conforming to other
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1134−94 (2007)
recognized standards will be subject to approval by the 8. Construction Specifications
procuring agency, provided they are not less effective.
8.1 General:
6.2 Flame-Retardant Materials—Enclosure materials used 8.1.1 Monitors shall be designed for ease of installation
in the construction of the monitors are to be flame-retardant in requiring no special tools and shall be fitted with a fastening
accordance with UL 94, and have a minimum flame rating of device compatible with the vibration criteria established for
94V-1 for monitors being installed within a motor controller marine applications.
enclosure, or switchgear-type enclosure, or a minimum rating 8.1.2 Indication of a condition representing a low insulation
of 94-5V for monitors not installed within such an enclosure. value as detected by the monitor shall be displayed by means
of an illuminated device mounted on the body of the monitor.
6.3 Electrical Insulation—Electrical insulation materials
8.1.3 The monitor shall include voltageless terminals to
used and application thereof shall be in accordance with the
which remotely located audible or visual indicators, or both,
requirements of IEEE 45.
can be connected through the use of control cabling. Relay
6.4 Current Carrying Terminals—All monitor current car-
contacts for this function shall have contacts with a switching
rying terminals shall be made of corrosion resistant material in
power of 1000 W ac, 100 W dc for a
...
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