ASTM B835-04(2009)

Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction

ABSTRACT
This specification deals with bare compact round stranded conductors made from uncoated copper wires of a single input wire diameter for general use in covered or insulated electrical wires or cables. Welds and brazes may be made in rods or in wires. The length and direction of lay are specified. The construction requirements of compact round single input wire-stranded copper conductors are also detailed. The mass and electrical resistance of the conductor shall be determined. Tests for the physical and electrical properties of wires shall be made.
SCOPE
1.1 This specification covers bare compact round stranded conductors made from uncoated copper wires of a single input wire (SIW) diameter for general use in covered or insulated electrical wires or cables. These conductors shall be constructed with one or more layers of helically laid compacted wires (Explanatory Note 1, Note 2, and Note 3).
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.
1.3 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 limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Sep-2009
• ICS: 29.060.10 - Wires
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.04 - Conductors of Copper and Copper Alloys

Relations

• Replaces: ASTM B835-04 - Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction
• Effective Date: 01-Oct-2009
• Replaced By: ASTM B835-14 - Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction
• Effective Date: 01-Sep-2014
• Referred By: ASTM B226-11(2021) - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
• Effective Date: 01-Oct-2009

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B835 −04(Reapproved 2009)
Standard Specification for
Compact Round Stranded Copper Conductors Using Single
Input Wire Construction
This standard is issued under the fixed designation B835; 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 3. Classification
1.1 This specification covers bare compact round stranded
3.1 The conductors described in this specification are in-
conductors made from uncoated copper wires of a single input tendedforsubsequentinsulationorcovering.Theclassification
wire (SIW) diameter for general use in covered or insulated
of these conductors is SIW compact.
electrical wires or cables. These conductors shall be con-
structed with one or more layers of helically laid compacted
4. Ordering Information
wires (Explanatory Note 1, Note 2, and Note 3).
4.1 Orders for material in accordance with this specification
1.2 The values stated in inch-pound units are to be regarded
shall include the following information:
as standard. The values given in parentheses are mathematical
4.1.1 Quantity of each size (Table 1);
conversions to SI units that are provided for information only
4.1.2 Conductorsize,circular-milarea,orAWG(Section8);
and are not considered standard.
4.1.3 Packaging (Section 15), if required;
1.2.1 For density, resistivity and temperature, the values
4.1.4 Special package marking; and
stated in SI units are to be regarded as standard.
4.1.5 Place of inspection (Section 14).
1.3 This standard does not purport to address all of the
5. Requirements for Wires
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Before stranding and compacting, the copper wire shall
priate safety and health practices and determine the applica-
meet all of the requirements of Specification B3.
bility of regulatory limitations prior to use.
6. Joints
2. Referenced Documents
6.1 Welds and brazes may be made in rods or in wires prior
2.1 The following documents of the issue in effect on date
to final drawing.
of material purchase form a part of this specification to the
extent referenced herein.
6.2 Welds and brazes may be made in the individual wires
for compact conductors, but they shall not be closer together
2.2 ASTM Standards:
than1ft(0.3m)forconductorof19wiresorlessorcloserthan
B3 Specification for Soft or Annealed Copper Wire
1 ft (0.3 m) in a layer for conductor of more than 19 wires.
B263 Test Method for Determination of Cross-Sectional
Area of Stranded Conductors
6.3 No joint or splice shall be made in a compact-stranded
B354 Terminology Relating to Uninsulated Metallic Electri-
conductor as a whole.
cal Conductors
2.3 NIST Document:
7. Lay
NBS Handbook 100—Copper Wire Tables
7.1 The length of lay shall not be less than 8 or more than
16 times the outside diameter of the completed conductor.
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on
7.2 The direction of lay of the outer layer shall be left-hand,
Conductors of Copper and Copper Alloys.
and it may be reversed or unidirectional in successive layers.
Current edition approved Oct. 1, 2009. Published January 2010. Originally
approved in 1993. Last previous edition approved in 2004 as B835 – 04. DOI:
7.3 Other lay requirements may be furnished upon special
10.1520/B0835-04R09.
agreement between the manufacturer and the purchaser.
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 8. Construction
the ASTM website.
3 8.1 The construction of the compact round SIW stranded
Available from National Institute of Standards and Technology (NIST), 100
Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov. conductors shall be as given in Table 1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B835−04 (2009)
TABLE 1 Construction Requirements of Compact Round SIW-Stranded Copper Conductors
Conductor Size Compact Conductor Diameter dc Resistance at 20°C
Minimum Mass/1000 ft, Mass/km,
Number of Wires lb/1000 ft kg/km
Circular, mils AWG mm in. mm Ω/1000 ft Ω/km
1 000 000 . 507 53 1.060 26.9 3086 4590 0.0106 0.0347
900 000 . 456 53 0.999 25.4 2780 4140 0.0118 0.0386
800 000 . 405 53 0.938 23.8 2469 3680 0.0132 0.0433
750 000 . 380 53 0.908 23.0 2316 3450 0.0141 0.0462
700 000 . 355 34 0.877 22.3 2160 3220 0.0151 0.0495
650 000 . 329 34 0.845 21.4 2006 2990 0.0163 0.0535
600 000 . 304 34 0.813 20.6 1850 2760 0.0176 0.0577
550 000 . 279 34 0.775 19.7 1700 2530 0.0192 0.0630
500 000 . 253 30 0.736 18.7 1542 2300 0.0212 0.0695
450 000 . 228 30 0.700 17.8 1390 2070 0.0235 0.0770
400 000 . 203 24 0.659 16.7 1236 1840 0.0264 0.0865
350 000 . 177 24 0.616 15.7 1080 1610 0.0302 0.0990
300 000 . 152 18 0.570 14.5 925 1380 0.0353 0.116
250 000 . 127 18 0.520 13.2 772 1150 0.0423 0.139
211 600 4/0 107 17 0.475 12.1 653 972 0.0500 0.164
167 800 3/0 85.0 15 0.423 10.8 518 771 0.0630 0.206
133 100 2/0 67.4 12 0.376 9.57 411 611 0.0795 0.261
105 600 1/0 53.5 7 0.336 8.55 326 485 0.100 0.328
83 690 1 42.4 7 0.299 7.60 259 385 0.126 0.413
66 350 2 33.6 6 0.268 6.81 205 305 0.159 0.521
41 740 4 21.2 6 0.213 5.41 129 192 0.253 0.830
26 240 6 13.3 6 0.169 4.29 80.9 121 0.403 1.32
16 510 8 8.37 6 0.134 3.40 51.0 75.9 0.641 2.10
8.2 Wires used in the fabrication of the compact round greater accuracy is desired, the increment based on the specific
conductor shall be of such dimensions as to produce a finished lay of the conductor may be calculated (Explanatory Note 4).
conductor as prescribed in Table 1.
9.3 The maximum electrical resistance of a unit length of
stranded conductor shall not exceed 102 % of the nominal dc
9. Density
resistance shown in Table 1. When the dc resistance is
9.1 For the purpose of calculating mass per unit length,
measured at other than 20°C, it is to be corrected by using the
cross sections, and so forth, the density of the copper shall be
multiplying factor given in Table 2.
3 3
taken as 8.89 g/cm (0.32117 lb/in. ) at 20°C.
9.4 For conductors to be used in cov
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