ASTM F479-06(2017)

Standard Specification for In-Service Care of Insulating Blankets

ABSTRACT
This specification covers elastomeric seals (gaskets) used to seal the joints of plastic pipe used for gravity, low-pressure, and high-pressure applications. This refers to push-on joints which require no internal or external pressure to effect the initial seal. Tensile strength, elongation, hardness, compression set, accelerated aging, water immersion, ozone resistance, and force decay shall be tested to meet the requirements prescribed.This specification covers the in-service care, inspection, testing, and use voltage of insulating blankets for protection of workers from accidental contact with live electrical conductors, apparatus, or circuits. Blankets covered shall be designated as type I or type II; class 0, class 1, class 2, class 3, or class 4; style A or style B: type I - not resistant to ozone, made from a high-grade cis-1,4-polyisoprene rubber compound of natural or synthetic origin, properly vulcanized; and type II - ozone-resistant, made of any elastomer or combination of elastomeric compounds. Style A - constructed of the elastomers indicated under type I or type II, shall be free of any reinforcement; and style B - constructed of the elastomers indicated under type I or type II, shall incorporate a reinforcement. Electrical testing shall be performed to meet the requirements prescribed.
SCOPE
1.1 This specification covers the in-service care, inspection, testing, and use voltage of insulating blankets for protection of workers from accidental contact with live electrical conductors, apparatus, or circuits. The product requirements and acceptance testing are as shown in Specification D1048.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.See Section 6 and 8.2 for specific precautionary statements.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 14-Dec-2017
• ICS: 13.260 - Protection against electric shock. Live working
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.25 - Insulating Cover-Up Equipment

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F479 −06 (Reapproved 2017)
Standard Specification for
1
In-Service Care of Insulating Blankets
ThisstandardisissuedunderthefixeddesignationF479;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C84.1 Voltage Ratings for Electric Power Systems and
Equipment (60 Hz)
1.1 This specification covers the in-service care, inspection,
testing, and use voltage of insulating blankets for protection of
3. Terminology
workers from accidental contact with live electrical
3.1 Definitions:
conductors, apparatus, or circuits. The product requirements
3.1.1 breakdown—the electrical discharge or arc occurring
and acceptance testing are as shown in Specification D1048.
betweentheelectrodesandthroughtheequipmentbeingtested.
1.2 The values stated in inch-pound units are to be regarded
3.1.2 compatible—not injurious to or changing the physical
as standard. The values given in parentheses are mathematical
or electrical characteristics of the blankets or affecting their
conversions to SI units that are provided for information only
application, use, or acceptability.
and are not considered standard.
3.1.3 designated person—an individual who is qualified by
1.3 This standard does not purport to address all of the
experience or training to perform an assigned task.
safety concerns, if any, associated with its use. It is the
3.1.4 electrical testing facility—a location with qualified
responsibility of the user of this standard to establish appro-
personnel,testingequipment,andproceduresfortheinspection
priate safety, health, and environmental practices and deter-
and electrical testing of electrical insulating protective equip-
mine the applicability of regulatory limitations prior to use.See
ment.
Section 6 and 8.2 for specific precautionary statements.
3.1.5 electrode—the energized or grounded conductor por-
1.4 This international standard was developed in accor-
tion of electrical test equipment which is placed near or in
dance with internationally recognized principles on standard-
contact with the material or equipment being tested.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.1.6 flashover—the electrical discharge or arc occurring
mendations issued by the World Trade Organization Technical
between electrodes and over or around, but not through, the
Barriers to Trade (TBT) Committee.
equipment being tested.
3.1.7 insulated—separated from other conducting surfaces
2. Referenced Documents
by a dielectric substance (including air space) offering a high
2
2.1 ASTM Standards:
resistance to the passage of current.
D1048 Specification for Rubber Insulating Blankets
3.1.7.1 Discussion—Whenanyobjectissaidtobeinsulated,
D2865 Practice for Calibration of Standards and Equipment
it is understood to be insulated in a suitable manner for the
for Electrical Insulating Materials Testing
conditions to which it is subjected. Otherwise, it is, within the
F819 Terminology Relating to Electrical Protective Equip-
purposes of this definitions, uninsulated. Insulating covering of
ment for Workers
conductors is one means of making the conductor insulated.
3
2.2 ANSI Standard:
3.1.8 ozone—a very active form of oxygen that may be
C39.5 Safety Requirements for Electrical and Electronic
produced by corona, arcing, or ultraviolet rays.
Measuring and Controlling Instrumentation
3.1.9 ozone cutting and checking—the cracks produced by
1
ozone in a material under mechanical stress.
This specification is under the jurisdiction of ASTM Committee F18 on
Electrical Protective Equipment for Workers and is the direct responsibility of
3.1.10 retest—the tests given after the initial acceptance test
Subcommittee F18.25 on Insulating Cover-Up Equipment.
usually performed at regular periodic intervals or as required
Current edition approved Dec. 15, 2017. Published January 2018. Originally
approved in 1976. Last previous edition approved in 2011 as F479–06(2011). DOI:
because of physical inspection.
10.1520/F0479-06R17.
3.1.11 unassigned blankets—blankets that are in storage
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
prior to being issued for use.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3.1.12 voltage, maximum use—the ac voltage (rms), classi-
the ASTM website.
3 fication of the protective equipment that designates the maxi-
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. mum
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F479 − 06 (Reapproved 2011) F479 − 06 (Reapproved 2017)
Standard Specification for
1
In-Service Care of Insulating Blankets
This standard is issued under the fixed designation F479; 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
1.1 This specification covers the in-service care, inspection, testing, and use voltage of insulating blankets for protection of
workers from accidental contact with live electrical conductors, apparatus, or circuits. The product requirements and acceptance
testing are as shown in Specification D1048.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety problems,concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and
determine the applicability of regulatory limitations prior to use.See Section 6 and 8.2 for specific precautionary statements.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1048 Specification for Rubber Insulating Blankets
D2865 Practice for Calibration of Standards and Equipment for Electrical Insulating Materials Testing
F819 Terminology Relating to Electrical Protective Equipment for Workers
3
2.2 ANSI Standard:
C39.5 Safety Requirements for Electrical and Electronic Measuring and Controlling Instrumentation
C84.1 Voltage Ratings for Electric Power Systems and Equipment (60 Hz)
3. Terminology
3.1 Definitions:
3.1.1 breakdown—the electrical discharge or arc occurring between the electrodes and through the equipment being tested.
3.1.2 compatible—not injurious to or changing the physical or electrical characteristics of the blankets or affecting their
application, use, or acceptability.
3.1.3 designated person—an individual who is qualified by experience or training to perform an assigned task.
3.1.4 electrical testing facility—a location with qualified personnel, testing equipment, and procedures for the inspection and
electrical testing of electrical insulating protective equipment.
3.1.5 electrode—the energized or grounded conductor portion of electrical test equipment which is placed near or in contact with
the material or equipment being tested.
3.1.6 flashover—the electrical discharge or arc occurring between electrodes and over or around, but not through, the equipment
being tested.
1
This specification is under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and is the direct responsibility of Subcommittee
F18.25 on Insulating Cover-Up Equipment.
Current edition approved Dec. 1, 2011Dec. 15, 2017. Published January 2012January 2018. Originally approved in 1976. Last previous edition approved in 20062011 as
F479F479–06(2011).–06. DOI: 10.1520/F0479-06R11.10.1520/F0479-06R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F479 − 06 (2017)
3.1.7 insulated—separated from other conducting surfaces by a dielectric substance (including air space) offering a high
resistance to the passage of current.
3.1.7.1 Discussion—
When any object is said to be insulated, it is understood to be insulated in a suitable manner for the conditions to which it is
subjected. Otherwise, it is, within the purposes of this definitions, uninsulated. Insulating covering of conductors is one mean
...