ASTM F2321-23

Standard Specification for Flexible and Rigid Insulated Temporary By-Pass Jumpers

ABSTRACT
These specifications provides the manufacture and testing, as well as individual design, electrical, mechanical, and workmanship requirements for a system of flexible insulated temporary bypass jumpers used on energized power lines and equipment. These specifications for a system of bypass jumpers are covered in four parts as follows: clamps for bypass jumpers; ferrules for bypass jumpers; cable for bypass jumpers; and bypass jumpers (complete assembly with clamps, ferrules, and cable). The use and maintenance of these equipments are not addressed in these specifications.
SCOPE
1.1 This specification covers the manufacture and testing of flexible insulated temporary By-Pass jumpers (By-Pass jumpers) used on energized power lines and equipment.  
1.2 It is common practice for the user of this protective equipment to prepare complete instructions and safety regulations to govern in detail the correct and safe use of such equipment. Also see 4.2.  
1.3 The use and maintenance of this equipment are beyond the scope of this specification.  
1.4 This specification for a system of By-Pass jumpers is covered in four parts as follows:    
Title  
Sections  
Clamps for By-Pass Jumpers  
5 – 17  
Ferrules for By-Pass Jumpers  
18 – 31  
Cable for By-Pass Jumpers  
32 – 40  
By-Pass Jumpers (complete assembly
with clamps, ferrules, and cable)  
41 – 55  
1.5 Each of the four parts is an entity of itself, but is listed as a part of the system for completeness and clarification.  
1.6 The values stated in SI units are to be regarded as the standard. See IEEE/ASTM SI 10.  
1.7 The following precautionary caveat pertains only to the test method portions, Sections 13, 26, 48, and 55 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.  
1.8 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: 31-Jan-2023
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: F18 - Electrical Protective Equipment for Workers
• Drafting Committee: F18.45 - Mechanical Apparatus

Relations

• Refers: ASTM B33-10(2020)e1 - Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
• Effective Date: 01-Jan-2020

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: F2321 − 23
Standard Specification for
1
Flexible and Rigid Insulated Temporary By-Pass Jumpers
This standard is issued under the fixed designation F2321; 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 2. Referenced Documents
2
1.1 This specification covers the manufacture and testing of
2.1 ASTM Standards:
flexible insulated temporary By-Pass jumpers (By-Pass jump-
B33 Specification for Tin-Coated Soft or Annealed Copper
ers) used on energized power lines and equipment.
Wire for Electrical Purposes
B172 Specification for Rope-Lay-Stranded Copper Conduc-
1.2 It is common practice for the user of this protective
tors Having Bunch-Stranded Members, for Electrical Con-
equipment to prepare complete instructions and safety regula-
ductors
tions to govern in detail the correct and safe use of such
B173 Specification for Rope-Lay-Stranded Copper Conduc-
equipment. Also see 4.2.
tors Having Concentric-Stranded Members, for Electrical
1.3 The use and maintenance of this equipment are beyond
Conductors
the scope of this specification.
D2768 Specification for General-Purpose Ethylene-
Propylene Rubber Jacket for Wire and Cable (Withdrawn
1.4 This specification for a system of By-Pass jumpers is
3
2007)
covered in four parts as follows:
D2770 Specification for Ozone-Resisting Ethylene-
Title Sections
Clamps for By-Pass Jumpers 5 – 17
Propylene Rubber Integral Insulation and Jacket for Wire
3
Ferrules for By-Pass Jumpers 18 – 31
and Cable (Withdrawn 2007)
Cable for By-Pass Jumpers 32 – 40
D2802 Specification for Ozone-Resistant Ethylene-Alkene
By-Pass Jumpers (complete assembly 41 – 55
with clamps, ferrules, and cable)
Polymer Insulation for Wire and Cable (Withdrawn
3
2020)
1.5 Each of the four parts is an entity of itself, but is listed
D2865 Practice for Calibration of Standards and Equipment
as a part of the system for completeness and clarification.
for Electrical Insulating Materials Testing
1.6 The values stated in SI units are to be regarded as the
E8/E8M Test Methods for Tension Testing of Metallic Ma-
standard. See IEEE/ASTM SI 10.
terials
1.7 The following precautionary caveat pertains only to the
F819 Terminology Relating to Electrical Protective Equip-
test method portions, Sections 13, 26, 48, and 55 of this ment for Workers
specification. This standard does not purport to address all of
IEEE/ASTM SI 10 American National Standard for Metric
the safety concerns, if any, associated with its use. It is the
Practice
responsibility of the user of this standard to establish appro-
4
2.2 ANSI Standards:
priate safety, health, and environmental practices and deter-
ANSI C39.5 Safety Requirements for Electrical and Elec-
mine the applicability of regulatory limitations prior to use.
tronic Measuring and Controlling Instruments
1.8 This international standard was developed in accor-
ANSI C84.1 Voltage Ratings for Electric Power Systems and
dance with internationally recognized principles on standard-
Equipment (60 Hz)
ization established in the Decision on Principles for the
ANSI C119.4 American National Standard for Electrical
Development of International Standards, Guides and Recom-
Connectors
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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
1
This specification is under the jurisdiction of ASTM Committee F18 on Standards volume information, refer to the standard’s Document Summary page on
Electrical Protective Equipment for Workers and is the direct responsibility of the ASTM website.
3
Subcommittee F18.45 on Mechanical Apparatus. The last approved version of this historical standard is referenced on www.ast-
Current edition approved Feb. 1, 2023. Published March 2023. Originally m.org.
4
approved in 2003. Last previous edition approved in 2020 as F2321 – 14 (2020). Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/F2321-23. 4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2321 − 23
5
2.3 NEMA Standard: during work operations. By-Pass jumpers are insulated to
WC 8 Ethylene-Propylene-Rubber Insulated Wire and Cable temporarily protect personnel from brush
...

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: F2321 − 14 (Reapproved 2020) F2321 − 23
Standard Specification for
1
Flexible and Rigid Insulated Temporary By-Pass Jumpers
This standard is issued under the fixed designation F2321; 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 These specifications coverThis specification covers the manufacture and testing of flexible insulated temporary By-Pass
jumpers (By-Pass jumpers) used on energized power lines and equipment.
1.2 It is common practice for the user of this protective equipment to prepare complete instructions and safety regulations to
govern in detail the correct and safe use of such equipment. Also see 4.2.
1.3 The use and maintenance of this equipment are beyond the scope of these specifications.this specification.
1.4 These specificationsThis specification for a system of By-Pass jumpers is covered in four parts as follows:
Title Sections
Clamps for By-Pass Jumpers 5 – 17
Ferrules for By-Pass Jumpers 18 – 31
Cable for By-Pass Jumpers 32 – 40
By-Pass Jumpers (complete assembly 41 – 55
with clamps, ferrules, and cable)
1.5 Each of the four parts is an entity of itself, but is listed as a part of the system for completeness and clarification.
1.6 The values stated in SI units are to be regarded as the standard. See IEEE/ASTM SI 10.
1.7 The following precautionary caveat pertains only to the test method portions, Sections 13, 26, 48, and 55 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.
1.8 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.
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 Feb. 15, 2020Feb. 1, 2023. Published March 2020March 2023. Originally approved in 2003. Last previous edition approved in 20142020 as
F2321F2321 – 14 (2020).–14. DOI: 10.1520/F2321-14R20.10.1520/F2321-23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2321 − 23
2. Referenced Documents
2
2.1 ASTM Standards:
B33 Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
B172 Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
B173 Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conduc-
tors
3
D2768 Specification for General-Purpose Ethylene-Propylene Rubber Jacket for Wire and Cable (Withdrawn 2007)
D2770 Specification for Ozone-Resisting Ethylene-Propylene Rubber Integral Insulation and Jacket for Wire and Cable
3
(Withdrawn 2007)
3
D2802 Specification for Ozone-Resistant Ethylene-Alkene Polymer Insulation for Wire and Cable (Withdrawn 2020)
D2865 Practice for Calibration of Standards and Equipment for Electrical Insulating Materials Testing
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
F819 Terminology Relating to Electrical Protective Equipment for Workers
IEEE/ASTM SI 10 American National Standard for Metric Practice
4
2.2 ANSI Standards:
ANSI C39.5 Safety Requirements for Electrical and Electronic Measuring and Controlling Instruments
ANSI C84.1 Voltage Ratings for Electric Power Systems and Equipment (60 Hz)
ANSI C119.4 American National Standard for Electrical Connectors
5
2.3 NEMA Standard:
WC 8 Ethylene-Propylene-Rubber Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy
(formerly ICEA S-68-516)
3. Terminology
3.1 Definitions:
3.1.1 flexible and rigid insulated temporary By-Pass jumpers—devices designed and used to keep electric supply circuits
effectively continuous (electrically bri
...