ASTM F479-06(2011)

Standard Specification for In-Service Care of Insulating Blankets

SIGNIFICANCE AND USE
Compliance with this specification should continue to provide personnel with insulating blankets of known and acceptable quality after initial acceptance in accordance with Specification D1048. The standards herein are to be considered as minimum requirements.
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, 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. See Section 6 and 8.2 for specific precautionary statements.

General Information

• Status: Historical
• Publication Date: 30-Nov-2011
• 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

Relations

• Replaces: ASTM F479-06 - Standard Specification for In-Service Care of Insulating Blankets
• Effective Date: 01-Dec-2011
• Referred By: ASTM F1236-23 - Standard Guide for Visual Inspection of Electrical Protective Rubber Products
• Effective Date: 01-Dec-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2011)
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 3.1.1 breakdown—the electrical discharge or arc occurring
betweentheelectrodesandthroughtheequipmentbeingtested.
1.1 This specification covers the in-service care, inspection,
3.1.2 compatible—not injurious to or changing the physical
testing, and use voltage of insulating blankets for protection of
workers from accidental contact with live electrical or electrical characteristics of the blankets or affecting their
application, use, or acceptability.
conductors, apparatus, or circuits. The product requirements
and acceptance testing are as shown in Specification D1048.
3.1.3 designated person—an individual who is qualified by
experience or training to perform an assigned task.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3.1.4 electrical testing facility—a location with qualified
conversions to SI units that are provided for information only
personnel,testingequipment,andproceduresfortheinspection
and are not considered standard.
and electrical testing of electrical insulating protective equip-
ment.
1.3 This standard does not purport to address all of the
safety problems, if any, associated with its use. It is the
3.1.5 electrode—the energized or grounded conductor por-
responsibility of the user of this standard to establish appro-
tion of electrical test equipment which is placed near or in
priate safety and health practices and determine the applica-
contact with the material or equipment being tested.
bility of regulatory limitations prior to use. See Section 6 and
3.1.6 flashover—the electrical discharge or arc occurring
8.2 for specific precautionary statements.
between electrodes and over or around, but not through, the
equipment being tested.
2. Referenced Documents
2
3.1.7 insulated—separated from other conducting surfaces
2.1 ASTM Standards:
by a dielectric substance (including air space) offering a high
D1048 Specification for Rubber Insulating Blankets
resistance to the passage of current.
D2865 Practice for Calibration of Standards and Equipment
3.1.7.1 Discussion—Whenanyobjectissaidtobeinsulated,
for Electrical Insulating Materials Testing
it is understood to be insulated in a suitable manner for the
F819 Terminology Relating to Electrical Protective Equip-
conditions to which it is subjected. Otherwise, it is, within the
ment for Workers
3
purposes of this definitions, uninsulated. Insulating covering of
2.2 ANSI Standard:
conductors is one means of making the conductor insulated.
C39.5 Safety Requirements for Electrical and Electronic
Measuring and Controlling Instrumentation 3.1.8 ozone—a very active form of oxygen that may be
C84.1 Voltage Ratings for Electric Power Systems and produced by corona, arcing, or ultraviolet rays.
Equipment (60 Hz)
3.1.9 ozone cutting and checking—the cracks produced by
ozone in a material under mechanical stress.
3. Terminology
3.1.10 retest—the tests given after the initial acceptance test
3.1 Definitions:
usually performed at regular periodic intervals or as required
because of physical inspection.
1
This specification is under the jurisdiction of ASTM Committee F18 on
3.1.11 unassigned blankets—blankets that are in storage
Electrical Protective Equipment for Workers and is the direct responsibility of
prior to being issued for use.
Subcommittee F18.25 on Insulating Cover-Up Equipment.
Current edition approved Dec. 1, 2011. Published January 2012. Originally
3.1.12 voltage, maximum use—the ac voltage (rms), classi-
approved in 1976. Last previous edition approved in 2006 as F479–06. DOI:
fication of the protective equipment that designates the maxi-
10.1520/F0479-06R11.
2
mum nominal design voltage of the energized system that may
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
be safely worked. The nominal design voltage is equal to the
Standards volume information, refer to the standard’s Document Summary page on
phase-to-phase voltage on multiphase circuits.
the ASTM website.
3
3.1.12.1 Discussion—If there is no multiphase exposure in a
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. system area, and the voltage exposure is limited to the phase
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