ASTM B500/B500M-98

Standard Specification for Metallic Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced (ACSR)

SCOPE
1.1 This specification covers 7-wire, 19-wire, 37-wire, and 61-wire zinc-coated (galvanized), zinc-5% aluminum-mischmetal alloy-coated, and aluminum-coated (aluminized) stranded steel core inserted for use in aluminum conductors, steel reinforced (ACSR).  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-Sep-1998
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.05 - Conductors of Ferrous Metals

Relations

• Replaced By: ASTM B500/B500M-98(2002) - Standard Specification for Metallic Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced (ACSR)
• Effective Date: 10-Sep-1998

Standards Content (Sample)

Designation: B 500/B 500M – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Metallic Coated Stranded Steel Core for Aluminum
1
Conductors, Steel Reinforced (ACSR)
This standard is issued under the fixed designation B 500/B 500M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 lot—unless otherwise specified in the contract or
order, a lot shall consist of all coils or reels of strand of the
1.1 This specification covers 7-wire, 19-wire, 37-wire, and
same diameter and unit lengths submitted for inspection at the
61-wire zinc-coated (galvanized), zinc-5 % aluminum-
same time.
mischmetal alloy-coated, and aluminum-coated (aluminized)
stranded steel core inserted for use in aluminum conductors,
4. Ordering Information
steel reinforced (ACSR).
4.1 Orders for material under this specification shall include
1.2 The values stated in inch-pound units are to be regarded
the following information:
separately as standard. The values in each system are not exact
4.1.1 Length of each construction,
equivalents; therefore, each system shall be used independently
4.1.2 Constructional description of stranded core (for ex-
of the other. Combining values from the two systems may
ample, 7 by 0.0943 in. or 19 by 0.0977 in.) (8.1 and 8.2),
result in nonconformance with this specification.
4.1.3 Nominal unit length of stranded core and multiple
2. Referenced Documents lengths, if allowed (8.3 and Section 15),
4.1.4 Coating, zinc-coated (Class A, B, or C), zinc-5 %
2.1 ASTM Standards:
aluminum-mischmetal-coated (Class A, B, or C), or aluminum-
B 232/B 232M Specification for Concentric-Lay-Stranded
2 coated (Section 5),
Aluminum Conductors, Coated-Steel Reinforced (ACSR)
4.1.5 Direction of lay of outer layer (Section 7),
B 341/B 341M Specification for Aluminum-Coated (Alu-
4.1.6 Packaging (Section 15), and
minized) Steel Core Wire for Aluminum Conductors, Steel
2
4.1.7 Place of inspection (Section 13).
Reinforced (ACSR/AZ)
B 498/B 498M Specification for Zinc-Coated (Galvanized)
5. Material
Steel Core Wire for Aluminum Conductors, Steel Rein-
2 5.1 The coated steel wire used in the production of the
forced (ACSR)
stranded core shall, prior to stranding, meet all of the require-
B 606 Specification for High-Strength Zinc-Coated (Galva-
ments of the appropriate specification that follows:
nized) Steel Core Wire for Aluminum and Aluminum-
2 5.1.1 Specification B 341/B 341M,
Alloy Conductors, Steel Reinforced
5.1.2 Specification B 498/B 498M,
B 802/B 802M Specification for Zinc-5 % Aluminum-
5.1.3 Specification B 606,
Mischmetal Alloy-Coated Steel Core Wire for Aluminum
2
5.1.4 Specification B 802/B 802M, and
Conductors, Steel Reinforced (ACSR)
5.1.5 Specification B 803.
B 803 Specification for High-Strength Zinc-5 %
Aluminum-Mischmetal Alloy-Coated Steel Core Wire for
6. Joints
Aluminum and Aluminum-Alloy Conductors, Steel Rein-
2 6.1 There shall be no joints of any kind made in the finished
forced
zinc-coated, zinc-5 % aluminum-mischmetal alloy-coated, or
E 83 Practice for Verification and Classification of Exten-
3 aluminum-coated steel wires.
someters
7. Stranding
3. Terminology
7.1 The lay length of the 6-wire layer of 7 and 19-wire
3.1 Definitions of Terms Specific to This Standard:
stranded core shall be not less than 18 or more than 30 times
the outside diameter of the 6-wire layer. (Outside diameter is
1
This specification is under the jurisdiction of ASTM Committee B-1 on
three times nominal wire diameter.)
Electrical Conductors and is the direct responsibility of Subcommittee B01.05 on
7.2 The lay length of the 12-wire layer of a 19-wire stranded
Conductors of Ferrous Metals.
Current edition approved Sept. 10, 1998. Published November 1998. Originally core shall be not less than 16 nor more than 24 times the
published as B 500 – 69. Last previous edition B 500 – 97.
outside diameter of the 12-wire layer. (Outside diameter is five
2
Annual Book of ASTM Standards, Vol 02.03.
times nominal wire diameter.)
3
Annual Book of ASTM Standards, Vol 03.01.
1

---------------------- Page: 1 ----------------------
B 500/B 500M
372wire strand—91 % of sum of components
7.3 The lay length of the 18-wire layer of a 37-wire stranded
core shall be not less than 14 nor more than 20 times the
612wire strand—90 % of sum of components
outside diameter of the 18-wire layer. (Outside diameter is
10.2 Stranded steel core samples shall sustain loads equal to
seven times nominal wire diameter.)
the values computed by the method of 10.1.
7.4 The lay length of the 24-wire layer of a 61-wire stranded
10.3 For determining compliance with the rated strength at
core shall be not l
...