ASTM F2973-15
(Specification)Standard Specification for Insulating Lifting Links for Load Lifting Equipment Working Near Energized Power Lines
Standard Specification for Insulating Lifting Links for Load Lifting Equipment Working Near Energized Power Lines
SCOPE
1.1 This specification covers insulating lifting links used for protection of workers positioning a load from accidental contact of the load lifting equipment with live electrical conductors, apparatus, and circuits.
1.2 This specification includes design, material, and testing requirements for the manufacturer and in-service inspection, testing and care requirements for the user or the agent of the user.
1.3 Insulating links whose primary application does not pertain to power line electrical safety are not within the scope of this specification.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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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Designation:F2973 −15
StandardSpecification for
Insulating Lifting Links for Load Lifting Equipment Working
1
Near Energized Power Lines
This standard is issued under the fixed designation F2973; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
4
1. Scope 2.3 ISO Standard:
ISO 7500–1Metallic materials - Verification of static uni-
1.1 Thisspecificationcoversinsulatingliftinglinksusedfor
axial testing machines - Part 1: Tensile testing machines -
protection of workers positioning a load from accidental
Corrigendum
contact of the load lifting equipment with live electrical
conductors, apparatus, and circuits.
3. Terminology
1.2 This specification includes design, material, and testing
3.1 Definitions—Terminologyusedinthisspecificationisin
requirements for the manufacturer and in-service inspection,
accordance with Terminology F819.
testing and care requirements for the user or the agent of the
3.2 Definitions of Terms Specific to This Standard:
user.
3.2.1 design verification test, n—test made on a sample
1.3 Insulating links whose primary application does not
treated as representative of an industrial product.
pertain to power line electrical safety are not within the scope
3.2.2 electrical test, n—a test ensuring that a product meets
of this specification.
the minimum electrical requirements of the standard.
1.4 The values stated in SI units are to be regarded as
3.2.3 flashover, n—adisruptivedischargeoverthesurfaceof
standard. No other units of measurement are included in this
the insulating link.
standard.
3.2.4 mechanical test, n—a test confirming that a product
1.5 This standard does not purport to address all of the
meets the minimum mechanical requirements of a standard.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.2.5 proof load, n—specific mechanical load applied in the
performance of the proof load test.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3.2.6 proof test, n—mechanical and electrical tests per-
formed by the manufacturer on all production units.
2. Referenced Documents
3.2.7 puncture, n—disruptive discharge through an insula-
2
2.1 ASTM Standards:
tor.
E4Practices for Force Verification of Testing Machines
3.2.8 qualified personnel, n—personnel who, by possession
F819Terminology Relating to Electrical Protective Equip-
of a recognized degree, certificate, professional standing, or
ment for Workers
skill, and who, by knowledge, training, and experience, have
3
2.2 IEEE Standard:
demonstrated the ability to deal with problems relating to the
IEEE 4Standard Techniques for High-Voltage Testing
subject matter, the work, or the project.
3.2.9 rated load, n—the maximum working load.
3.2.10 visual inspection, n—visual check made to detect
1
This specification is under the jurisdiction of ASTM Committee F18 on
defects that impede the performance of a product(s).
Electrical Protective Equipment for Workers and is the direct responsibility of
Subcommittee F18.55 on Inspection and Non-Destructive Test Methods for Aerial
Devices. 4. Materials and Manufacture
Current edition approved Oct. 1, 2015. Published November 2015. Originally
4.1 The mechanical design factor shall not be less than 5.0
approved in 2014. Last previous edition approved in 2014 as F2973-14. DOI:
10.1520/F2973-15 times its rated load for ratings up to 100 tons and 4.0 times
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
rated load for ratings 100 tons and up.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
445 Hoes Ln., Piscataway, NJ 08854, http://www.ieee.org. 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 ----------------------
F2973−15
4.2 The electrical design factor of the link shall not be less 6.3 The electrical test set up shall provide the operator
than 2 times it rated use voltage. protection in the performance of his duties and isolate the
specimen to guard against accidental contact by persons in the
4.3 The insulation system shall not absorb water and shall
vicinity.
have a water repellent surface.
6.4 The ambient temperature for
...
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: F2973 − 14 F2973 − 15
Standard Specification for
Insulating Lifting Links for Load Lifting Equipment Working
1
Near Energized Power Lines
This standard is issued under the fixed designation F2973; 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 insulating lifting links used for protection of workers positioning a load from accidental contact
of the load lifting equipment with live electrical conductors, apparatus, and circuits.
1.2 This specification includes design, material, and testing requirements for the manufacturer and in-service inspection, testing
and care requirements for the user or the agent of the user.
1.3 Insulating links whose primary application does not pertain to power line electrical safety are not within the scope of this
specification.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E4 Practices for Force Verification of Testing Machines
F819 Terminology Relating to Electrical Protective Equipment for Workers
3
2.2 IEEE Standard:
IEEE 4 Standard Techniques for High-Voltage Testing
4
2.3 ISO Standard:
ISO 7500–1 Metallic materials - Verification of static uniaxial testing machines - Part 1: Tensile testing machines - Corrigendum
3. Terminology
3.1 Definitions—Terminology used in this specification is in accordance with Terminology F819.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 design verification test, n—test made on a sample treated as representative of an industrial product.
3.2.2 electrical test, n—a test ensuring that a product meets the minimum electrical requirements of the standard.
3.2.3 flashover, n—a disruptive discharge over the surface of the insulating link.
3.2.4 mechanical test, n—a test confirming that a product meets the minimum mechanical requirements of a standard.
3.2.5 proof load, n—specific mechanical load applied in the performance of the proof load test.
3.2.6 proof test, n—mechanical and electrical tests performed by the manufacturer on all production units.
3.2.7 puncture, n—disruptive discharge through an insulator.
1
This specification is under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and is the direct responsibility of Subcommittee
F18.55 on Inspection and Non-Destructive Test Methods for Aerial Devices.
Current edition approved Oct. 1, 2014Oct. 1, 2015. Published October 2014November 2015. Originally approved in 2014. Last previous edition approved in 2014 as
F2973-14. DOI: 10.1520/F2973-1410.1520/F2973-15
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), 445 Hoes Ln., Piscataway, NJ 08854, http://www.ieee.org.
4
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 ----------------------
F2973 − 15
3.2.8 qualified personnel, n—personnel who, by possession of a recognized degree, certificate, professional standing, or skill,
and who, by knowledge, training, and experience, have demonstrated the ability to deal with problems relating to the subject
matter, the work, or the project.
3.2.9 rated load, n—the maximum working load.
3.2.10 visual inspection, n—visual check made to detect defects that impede the performance of a product(s).
4. Materials and Manufacture
4.1 The mechanical design factor shall not be less than 5.0 times its rated load for ratings up to 100 tons and 4.0 times rated
load for ratings 100 tons and up.
4.2 The electrical design factor of the link shall not be less
...
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