ASTM F2973-21

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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: Published
• Publication Date: 30-Apr-2021
• ICS: 53.020.30 - Accessories for lifting equipment
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.55 - Inspection and Non-Destructive Test Methods for Aerial Devices

Standards Content (Sample)

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.
Designation:F2973 −21
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 F819 Terminology Relating to Electrical Protective Equip-
ment for Workers
1.1 This specification covers insulating lifting links used for
3
2.2 IEEE Standard:
protection of workers positioning a load from accidental
IEEE 4 Standard Techniques for High-Voltage Testing
contact of the load lifting equipment with live electrical
4
2.3 ISO Standard:
conductors, apparatus, and circuits.
ISO 7500–1 Metallic Materials—Verification of Static Uni-
1.2 This specification includes design, material, and testing
axial Testing Machines—Part 1: Tensile Testing
requirements for the manufacturer and in-service inspection,
Machines—Corrigendum
testing and care requirements for the user or the agent of the
user.
3. Terminology
1.3 Insulating links whose primary application does not
3.1 Definitions—Terminology used in this specification is in
pertain to power line electrical safety are not within the scope
accordance with Terminology F819.
of this specification.
3.2 Definitions of Terms Specific to This Standard:
1.4 The values stated in SI units are to be regarded as
3.2.1 design verification test, n—test made on a sample
standard. No other units of measurement are included in this
treated as representative of an industrial product.
standard.
3.2.2 electrical test, n—a test ensuring that a product meets
1.5 This standard does not purport to address all of the
the minimum electrical requirements of the standard.
safety concerns, if any, associated with its use. It is the
3.2.3 flashover, n—adisruptivedischargeoverthesurfaceof
responsibility of the user of this standard to establish appro-
the insulating link.
priate safety, health, and environmental practices and deter-
3.2.4 mechanical test, n—a test confirming that a product
mine the applicability of regulatory limitations prior to use.
meets the minimum mechanical requirements of a standard.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard- 3.2.5 proof load, n—specific mechanical load applied in the
ization established in the Decision on Principles for the
performance of the proof load test.
Development of International Standards, Guides and Recom-
3.2.6 proof test, n—mechanical and electrical tests per-
mendations issued by the World Trade Organization Technical
formed by the manufacturer on all production units.
Barriers to Trade (TBT) Committee.
3.2.7 puncture, n—disruptive discharge through an insula-
tor.
2. Referenced Documents
3.2.8 qualified personnel, n—personnel who, by possession
2
2.1 ASTM Standards:
of a recognized degree, certificate, professional standing, or
E4 Practices for Force Verification of Testing Machines
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.
1
This specification is under the jurisdiction of ASTM Committee F18 on
3.2.9 rated load, n—the maximum working load.
Electrical Protective Equipment for Workers and is the direct responsibility of
Subcommittee F18.55 on Inspection and Non-Destructive Test Methods for Aerial
3.2.10 visual inspection, n—visual check made to detect
Devices.
defects that impede the performance of a product(s).
Current edition approved May 1, 2021. Published May 2021. Originally
approved in 2014. Last previous edition approved in 2016 as F2973 – 16. DOI:
10.1520/F2973-21
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 445 Hoes Ln., Piscataway, NJ 08854, http://www.ieee.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 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 ----------------------
F2973−21
4. Materials and Manufacture 6.2 The electrical test equipment shall meet the require-
men
...

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 − 16 F2973 − 21
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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:
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
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, 2016May 1, 2021. Published November 2016May 2021. Originally approved in 2014. Last previous edition approved in 20152016 as
F2973 – 15.16. DOI: 10.1520/F2973-1610.1520/F2973-21
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 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 − 21
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.
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 visu
...