ASTM F2249-23
(Specification)Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
ABSTRACT
This specification covers the in-service inspection and electrical testing of temporary protective grounding jumper assemblies used by electrical workers in the field on de-energized electric power lines, circuits, and equipment. These assemblies consist of flexible cables, ferrules, clamps, and connectors. The test procedures detailed here provide an objective means of determining if a grounding jumper assembly meets minimum electrical specifications. The application, care, use, and maintenance of this equipment are not addressed in this specification.
SCOPE
1.1 This specification covers the in-service inspection and electrical testing of temporary protective grounding jumper assemblies which have been used by electrical workers in the field.
1.2 This specification discusses methods for testing grounding jumper assemblies, which consist of the flexible cables, ferrules, clamps and connectors used in the temporary protective grounding of de-energized circuits.
1.3 Manufacturing specifications for these grounding jumper assemblies are in Specifications F855.
1.4 The application, care, use, and maintenance of this equipment are beyond the scope of this specification.
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.6 The following safety hazards caveat pertains only to the test portions of 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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.
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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: F2249 − 23
Standard Specification for
In-Service Test Methods for Temporary Grounding Jumper
Assemblies Used on De-Energized Electric Power Lines and
1
Equipment
This standard is issued under the fixed designation F2249; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification covers the in-service inspection and
electrical testing of temporary protective grounding jumper
2. Referenced Documents
assemblies which have been used by electrical workers in the
2
2.1 ASTM Standards:
field.
B172 Specification for Rope-Lay-Stranded Copper Conduc-
1.2 This specification discusses methods for testing ground-
tors Having Bunch-Stranded Members, for Electrical Con-
ing jumper assemblies, which consist of the flexible cables,
ductors
ferrules, clamps and connectors used in the temporary protec-
B173 Specification for Rope-Lay-Stranded Copper Conduc-
tive grounding of de-energized circuits.
tors Having Concentric-Stranded Members, for Electrical
1.3 Manufacturing specifications for these grounding
Conductors
jumper assemblies are in Specifications F855.
F855 Specifications for Temporary Protective Grounds to Be
Used on De-energized Electric Power Lines and Equip-
1.4 The application, care, use, and maintenance of this
ment
equipment are beyond the scope of this specification.
3
2.2 IEEE Standards:
1.5 The values stated in SI units are to be regarded as
IEEE Standard 80–2013 IEEE Guide for Safety in AC
standard. The values given in parentheses after SI units are
Substation Grounding
provided for information only and are not considered standard.
IEEE Standard 1048–2016 IEEE Guide for the Protective
1.6 The following safety hazards caveat pertains only to the
Grounding of Power Lines
test portions of this specification. This standard does not
IEEE Standard 1246–2011 IEEE Guide for Temporary Pro-
purport to address all of the safety concerns, if any, associated
tective Grounding Systems Used in Substations
with its use. It is the responsibility of the user of this standard
to establish appropriate safety, health, and environmental
3. Terminology
practices and determine the applicability of regulatory limita-
3.1 Definitions of Terms Specific to This Standard:
tions prior to use.
3.1.1 grounding jumper assembly—grounding cable with
1.7 This international standard was developed in accor-
connectors and ground clamps attached, also called a ground-
dance with internationally recognized principles on standard-
ing jumper or a protective ground assembly installed tempo-
ization established in the Decision on Principles for the
rarily on de-energized electric power circuits for the purpose of
Development of International Standards, Guides and Recom-
1 2
This specification is under the jurisdiction of ASTM Committee F18 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Electrical Protective Equipment for Workers and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee F18.45 on Mechanical Apparatus. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Feb. 1, 2023. Published February 2023. Originally the ASTM website.
ɛ1 3
approved in 2003. Last previous edition approved in 2020 as F2249 – 20 . DOI: Available from the Institute of Electrical and Electronics Engineers, Inc. (IEEE)
10.1520/F2249-23. 1828 L St., NW, Suite 1202, Washington, DC 20036–5104.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2249 − 23
potential equalization and to conduct a short circuit current for
a specified duration (time).
4. Significance and Use
4.1 Grounding jumper assemblies can be damaged by rough
handling, long term usage, weathering, corrosion, or a combi-
FIG. 1 Resistance and Impedance of Copper Grounding Jumper
nation thereof. This deterioration may be both physical and
Assemblies
electrical.
Y = resistance of clamps, ferrule and portions of the cable
4.2 The test procedures in this specification provide an
inside the ferrule, mΩ,
objective means of determining if a grounding jumper assem-
L = cable length expressed in feet (ferrule to ferrule mea-
bly meets minimum electrical specifications. These method
...
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.
´1
Designation: F2249 − 20 F2249 − 23
Standard Specification for
In-Service Test Methods for Temporary Grounding Jumper
Assemblies Used on De-Energized Electric Power Lines and
1
Equipment
This standard is issued under the fixed designation F2249; 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
ε NOTE—In 7.5.3, reference to Tables X3.2 and X4.2 was removed editorially as these tables were removed in the last
edition. In X3.2.1.1, the reference to Specifications F855 Table 2, and in X3.4.2, the reference to Specifications F855 Table
5 were corrected to Specifications F855 Table 1, and in X1.1 and X2.1, the first sentences were corrected from “four ac-
ceptable cables” to “two acceptable cables” editorially in January 2021.
1. Scope
1.1 These specifications coverThis specification covers the in-service inspection and electrical testing of temporary protective
grounding jumper assemblies which have been used by electrical workers in the field.
1.2 These specifications discussThis specification discusses methods for testing grounding jumper assemblies, which consist of the
flexible cables, ferrules, clamps and connectors used in the temporary protective grounding of de-energized circuits.
1.3 Manufacturing specifications for these grounding jumper assemblies are in Specifications F855.
1.4 The application, care, use, and maintenance of this equipment are beyond the scope of this specification.
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for
information only and are not considered standard.
1.6 The following safety hazards caveat pertains only to the test portions of 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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:
B172 Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
1
This specification is under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and is the direct responsibility of Subcommittee
F18.45 on Mechanical Apparatus.
Current edition approved Aug. 1, 2020Feb. 1, 2023. Published September 2020February 2023. Originally approved in 2003. Last previous edition approved in 20182020
ɛ1
as F2249F2249 – 20 -18. DOI: 10.1520/F2249-20E01. DOI: 10.1520/F2249-23.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2249 − 23
B173 Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conduc-
tors
F855 Specifications for Temporary Protective Grounds to Be Used on De-energized Electric Power Lines and Equipment
3
2.2 IEEE Standards:
IEEE Standard 80–2013 IEEE Guide for Safety in AC Substation Grounding
IEEE Standard 1048–2016 IEEE Guide for the Protective Grounding of Power Lines
IEEE Standard 1246–2011 IEEE Guide for Temporary Protective Grounding Systems Used in Substations
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 grounding jumper assembly—grounding cable with connectors and ground clamps attached, also called a grounding jumper
or a protective ground assembly installed temporarily on de-energized electric power circuits for the purpose of potential
equalization and to conduct a short circuit current for a specified duration (time).
4. Significance and Use
4.1 Grounding jumper assemblies can be damaged by ro
...
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