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ASTM F2249-03(2009)

(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 These specifications cover 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 discuss 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 F 855.
1.4 The application, care, use, and maintenance of this equipment are beyond the scope of this specification.
1.5 Units of measurement used in this specification are in the Metric system (SI) with English units given in parentheses.
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 and health practices and determine the applicability of regulatory requirements prior to use.

General Information

Status
Historical
Publication Date
31-Mar-2009
ICS
29.120.50 - Fuses and other overcurrent protection devices
Technical Committee
F18 - Electrical Protective Equipment for Workers
Drafting Committee
F18.45 - Mechanical Apparatus
Current Stage
Ref Project

Relations

Replaces
ASTM F2249-03 - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
Effective Date
01-Apr-2009
Replaced By
ASTM F2249-03(2015) - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
Effective Date
01-May-2015
Referred By
ASTM F3060-20 - Standard Terminology for Aircraft
Effective Date
01-Apr-2009

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ASTM F2249-03(2009) - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and EquipmentASTM F2249-03(2009) - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
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ASTM F2249-03(2009) - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
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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:F2249 −03(Reapproved 2009)
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.
3
1. Scope 2.2 IEEE Standards:
IEEE Standard 80–1986 IEEE Guide for Safety in AC
1.1 These specifications cover the in-service inspection and
Substation Grounding
electrical testing of temporary protective grounding jumper
IEEE Standard 1048–1990 IEEE Guide for the Protective
assemblies which have been used by electrical workers in the
Grounding of Power Lines
field.
1.2 Thesespecificationsdiscussmethodsfortestingground- 3. Terminology
ing jumper assemblies, which consist of the flexible cables,
3.1 Definitions of Terms Specific to This Standard:
ferrules, clamps and connectors used in the temporary protec-
3.1.1 grounding jumper assembly—grounding cable with
tive grounding of de-energized circuits.
connectors and ground clamps attached, also called a ground-
1.3 Manufacturing specifications for these grounding ing jumper or a protective ground assembly installed tempo-
jumper assemblies are in Specifications F855. rarilyonde-energizedelectricpowercircuitsforthepurposeof
potential equalization and to conduct a short circuit current for
1.4 The application, care, use, and maintenance of this
a specified duration (time).
equipment are beyond the scope of this specification.
1.5 Units of measurement used in this specification are in 4. Significance and Use
the Metric system (SI) with English units given in parentheses.
4.1 Grounding jumper assemblies can be damaged by rough
1.6 The following safety hazards caveat pertains only to the
handling, long term usage, weathering, corrosion, or a combi-
test portions of this specification. This standard does not nation thereof. This deterioration may be both physical and
purport to address all of the safety concerns, if any, associated
electrical.
with its use. It is the responsibility of the user of this standard
4.2 The test procedures in this specification provide an
to establish appropriate safety and health practices and
objective means of determining if a grounding jumper assem-
determine the applicability of regulatory requirements prior to
bly meets minimum electrical specifications. These methods
use.
permit testing of grounding jumper assemblies under con-
trolled conditions.
2. Referenced Documents
2
4.3 Each responsible entity must determine the required
2.1 ASTM Standards:
safety margin for their workers during electrical fault condi-
B193 Test Method for Resistivity of Electrical Conductor
tions. Guidelines for use in the determination of these condi-
Materials
tions are beyond the scope of this specification and can be
F855 SpecificationsforTemporaryProtectiveGroundstoBe
found in such standards as IEEE Standard 80–1986 and IEEE
Used on De-energized Electric Power Lines and Equip-
Standard 1048–1990.
ment
4.4 Mechanical damage, other than broken strands, may not
significantly affect the cable resistance. Close manual and
1
This specification is under the jurisdiction of ASTM Committee F18 on
visual inspection is required to detect some types of mechani-
Electrical Protective Equipment for Workers and is the direct responsibility of
Subcommittee F18.45 on Mechanical Apparatus.
cal damage.
Current edition approved April 1, 2009. Published April 2009. Originally
4.5 The test procedures in this specification should be
approved in 2003. Last previous edition approved in 2003 as F2249-03. DOI:
10.1520/F2249-03R09.
performed at a time interval established by the user to ensure
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
3
Standards volume information, refer to the standard’s Document Summary page on AvailablefromtheInstituteofElectricalandElectronicsEngineers,Inc.(IEEE)
the ASTM website. 1828 L St., NW, Suite 1202, Washington, CD 20036–5104.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2249−03 (2009)
that defective grounding jumper assemblies are detected and 7.5 In-Service Electrical Resistance Pass/Fail Criteria
removed from service in a timely manner. —The pass/fail criterion of a grounding jumper assembly is
based on the resistance value of the assembly (cable, ferrules
4.6 Retest the grounding jumper assembly after performing
and clamps) which i
...

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Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment

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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.
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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.  
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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.  
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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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These specifications cover the equipment making up the temporary grounding system used on de-energized electric power lines, electric supply stations, and equipment. These specifications for a system of protective grounding utilizing copper cables are covered in four parts, as follows: clamps, ferrules, cables, and temporary protective grounds. Each of the four parts is an entity of itself, but is listed as a part of the system for completeness and clarification. The clamps shall be subject to design tests for determining mechanical torque strength and electrical short circuit capacity. The ferrules shall be tested for electrical short-circuit capacity and continuous current rating. The elastomer or thermoplastic making up the jacket of the flexible cable shall be tested according to the specified methods.
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1.1 These specifications cover the equipment making up the temporary grounding system used on de-energized electric power lines, electric supply stations, and equipment.  
1.2 It is common practice for the users of protective grounding equipment to prepare complete instructions and regulations to govern in detail the correct use and maintenance of such equipment.  
1.3 The uses and maintenance of this equipment are beyond the scope of these specifications.  
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Note 1: TPG testing is done on complete assemblies. Assembly ratings assume the grade of lowest graded component (see 43.1.6).  
1.6.1 Currents presented in Table 2 are based upon the values from EPRI Project RP2446 Computer Program RTGC “A Desktop Computer Program for Calculating Rating of Temporary Grounding Cables” and are to be used in situations involving an asymmetry value greater than 20 % (X/R ≧ 1.8), see Appendix X2.  
Note 1: The above current values are based on electromechanical test values.
Note 2: Assemblies that have been subjected to these shall not be re-used.
Note 3: For use with currents exceeding 20 % asymmetry factor.
Note 4: See X2.7.2 for additional information.
Note 5: Alternate testing circuits are available for laboratories that cannot achieve the above requirements. See Appendix X2 for details.
Note 1: Table 1 represents the clamp and assembly ratings that existed prior to this revision. Table 2 represents new ratings now required for high X/R situations.  
1.6.2 See Appendix X1 and Appendix X2 for a discussion of these topics.  
1.7 The values stated in Newton-Meter units are to be regarded as the standard. The values in parentheses are the inch-pound units.  
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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.
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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.  
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