ASTM B901-04(2011)

Standard Specification for Compressed Round Stranded Aluminum Conductors Using Single Input Wire Construction

ABSTRACT
This specification covers aluminum 1350-H19, 1350-H16 or -H26, 1350-H14 or -H24, 1350-H142 or -H242, and aluminum alloy 8XXX series for tempers "O" and H1X or H2X, bare stranded conductors composed of one or more roller shaped or die compressed layers of helically laid wires. The conductors are for general use for electrical purposes. The conductors described in this specification are intended for subsequent insulation or covering. The areas of cross section, the minimum number of wires, and diameters of the finished strand shall conform to the prescribed construction requirements. The rated strength of 1350-H19 conductors shall be taken as the percent of the sum of the strengths of the component wires, calculated using the nominal wire diameters and the specified minimum average tensile strength. The rated strength of 800 series conductors shall be taken as the percent of the sum of strengths of the component wires, calculated using nominal wire diameters and the specified minimum average tensile strength. The approximate mass and electrical resistance may be determined using the standard increments due to stranding. Mechanical and electrical tests shall be made for not annealed and annealed conductors after stranding. Temperature correction factors for conductor resistance shall be provided when dc resistance is measured at specified temperatures.
SCOPE
1.1 This specification covers aluminum 1350-H19 (extra hard), 1350-H16 or -H26 (¾ hard), 1350-H14 or -H24 (½ hard), 1350-H142 or -H242 (½ hard), and aluminum alloy 8XXX series as listed in Specification B800 for tempers “O” and H1X or H2X, bare stranded conductors composed of one or more roller shaped or die compressed layers of helically layed wires. The conductors are for general use for electrical purposes (Explanatory Notes 1 and 2).
Note 1—For the purposes of this specification, single input wire (SIW) construction is defined as follows: a stranded conductor design methodology that varies the number of wires within a range of conductor sizes in order to permit that range of conductor sizes to be constructed from a single wire size.
1.2 The SI values for resistivity are regarded as standard. For all other properties, the inch-pound units are regarded as standard and the SI units may be approximate.
Note 2—Prior to 1975, aluminum 1350 was designated as EC aluminum.
Note 3—The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527. Aluminum alloys in the 8000 series correspond to Unified Numbering System A98XXX in accordance with Practice E527.
Note 4—This specification also permits conductors for use as covered or insulated electrical conductors.
Note 5—Sealed conductors, which are intended to prevent longitudinal water propagation and are further covered/insulated, are also permitted within the guidelines of this specification.

General Information

• Status: Historical
• Publication Date: 31-Mar-2011
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.07 - Conductors of Light Metals

Relations

• Replaces: ASTM B901-04 - Standard Specification for Compressed Round Stranded Aluminum Conductors Using Single Input Wire Construction
• Effective Date: 01-Apr-2011

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:B901 −04(Reapproved 2011)
Standard Specification for
Compressed Round Stranded Aluminum Conductors Using
Single Input Wire Construction
This standard is issued under the fixed designation B901; 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 2.2 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor
1.1 This specification covers aluminum 1350-H19 (extra
Materials
3 1
hard), 1350-H16 or -H26 ( ⁄4 hard), 1350-H14 or -H24 ( ⁄2
B230/B230M Specification for Aluminum 1350–H19 Wire
hard), 1350-H142 or -H242 ( ⁄2 hard), and aluminum alloy
for Electrical Purposes
8XXX series as listed in Specification B800 for tempers “O”
B263 Test Method for Determination of Cross-Sectional
and H1X or H2X, bare stranded conductors composed of one
Area of Stranded Conductors
or more roller shaped or die compressed layers of helically
B354 Terminology Relating to Uninsulated Metallic Electri-
layed wires. The conductors are for general use for electrical
cal Conductors
purposes (Explanatory Notes 1 and 2).
B609/B609M Specification for Aluminum 1350 Round
Wire, Annealed and Intermediate Tempers, for Electrical
NOTE 1—For the purposes of this specification, single input wire (SIW)
Purposes
construction is defined as follows: a stranded conductor design method-
B800 Specification for 8000 Series Aluminum Alloy Wire
ology that varies the number of wires within a range of conductor sizes in
order to permit that range of conductor sizes to be constructed from a for Electrical Purposes—Annealed and Intermediate Tem-
single wire size.
pers
B801 SpecificationforConcentric-Lay-StrandedConductors
1.2 The SI values for resistivity are regarded as standard.
of 8000 SeriesAluminumAlloy for Subsequent Covering
For all other properties, the inch-pound units are regarded as
or Insulation
standard and the SI units may be approximate.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
NOTE 2—Prior to 1975, aluminum 1350 was designated as EC
aluminum.
E527 Practice for Numbering Metals and Alloys in the
NOTE 3—The aluminum and temper designations conform to ANSI
Unified Numbering System (UNS)
H35.1. Aluminum 1350 corresponds to Unified Numbering System
2.3 Other Standards:
A91350 in accordance with Practice E527. Aluminum alloys in the 8000
ANSI H35.1 American National StandardAlloy and Temper
series correspond to Unified Numbering System A98XXX in accordance
Designation System for Aluminum
with Practice E527.
NBS Handbook 100—Copper Wire Tables
NOTE 4—This specification also permits conductors for use as covered
or insulated electrical conductors.
3. Classification
NOTE 5—Sealed conductors, which are intended to prevent longitudinal
3.1 The conductors described in this specification are in-
water propagation and are further covered/insulated, are also permitted
within the guidelines of this specification. tendedforsubsequentinsulationorcovering.Theclassification
of these conductors is SIW compressed.
2. Referenced Documents
4. Ordering Information
2.1 The following documents of the issue in effect on the
4.1 Orders for material under this specification shall include
dateofmaterialpurchaseformapartofthisspecificationtothe
the following information:
extent referenced herein.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
This specification is under the jurisdiction of ASTM Committee B01 of Standards volume information, refer to the standard’s Document Summary page on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on the ASTM website.
Conductors of Light Metals. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved April 1, 2011. Published September 2011. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
approved in 2000. Last previous edition approved in 2004 as B901 – 04. DOI: Available from National Technical Information Service (NTIS), 5301 Shawnee
10.1520/B0901-04R11. Rd., Alexandria, VA 22312, http://www.ntis.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B901−04 (2011)
4.1.1 Quantity, 4.1.6 Detailsofspecial-purposelays,whenrequired(see7.2
4.1.2 Conductorsize:circular-milareaofAWG(seeSection and 7.3),
8 and Table 1), 4.1.7 When tension tests are required on the completed
4.1.3 Alloy designation, conductor (see Section 15),
4.1.4 Class (see 3.1), 4.1.8 Package size (see 19.1),
4.1.5 Temper (see 5.1 and 5.3), 4.1.9 Special package marking, if required (see Section 20),
TABLE 1 Construction Requirements of Compressed Round SIW Stranded
Aluminum Conductors
Conductor Size Hard Drawn Copper Nominal Nominal
Equivalent Diameter of Diameter of
Minimum SIW Com- SIW Com-
Number pressed pressed DC Resistance at
of Conductor Conductor Mass 20°C
2 2
cmils AWG mm cmils AWG mm Wires in. mm lb/1000ftkg/km Ω/1000ft Ω/km
4 000 000 2027 2 520 000 1277 217 2.168 55.07 3823 5688 0.00442 0.0145
3 500 000 1773 2 200 000 1115 169 2.028 51.51 3345 4977 0.00505 0.0166
3 000 000 1520 1 890 000 957.7 169 1.878 47.69 2839 4225 0.00584 0.0192
2 500 000 1267 1 570 000 795.5 127 1.714 43.54 2366 3521 0.00701 0.0230
2 000 000 1013 1 260 000 638.5 127 1.533 38.94 1875 2789 0.00867 0.0284
1 900 000 962.7 1 195 000 605.5 127 1.494 37.95 1781 2650 0.00913 0.0300
1 800 000 912.1 1 132 000 573.6 127 1.454 36.93 1687 2510 0.00963 0.0316
1 750 000 886.7 1 101 000 557.9 127 1.434 36.42 1640 2441 0.0099 0.0325
1 700 000 861.4 1 069 000 541.7 127 1.413 35.89 1593 2371 0.0102 0.0335
1 600 000 810.7 1 006 000 509.7 127 1.371 34.82 1500 2232 0.0109 0.0358
1 500 000 760.1 943 000 477.8 90 1.327 33.71 1406 2092 0.0116 0.0381
1 400 000 709.4 880 000 445.9 90 1.282 32.56 1312 1953 0.0124 0.0407
1 300 000 658.7 818 000 414.5 90 1.236 31.39 1218 1813 0.0133 0.0436
1 250 000 633.4 786 000 398.3 90 1.212 30.78 1172 1743 0.0138 0.0453
1 200 000 608.0 755 000 382.6 90 1.187 30.15 1125 1674 0.0144 0.0472
1 100 000 557.4 692 000 350.6 90 1.137 28.88 1030 1533 0.0158 0.0518
1 000 000 506.7 629 000 318.7 53 1.084 27.53 937 1395 0.0173 0.0568
900 000 456.0 566 000 286.8 53 1.028 26.11 844 1255 0.0193 0.0633
800 000 405.4 503 000 254.9 53 0.969 24.61 750 1116 0.0217 0.0712
750 000 380.0 472 000 239.2 53 0.939 23.85 703 1046 0.0231 0.0758
700 000 354.7 440 000 223.0 34 0.907 23.04 656 976 0.0248 0.0814
650 000 329.4 409 000 207.2 34 0.874 22.20 609 907 0.0267 0.0876
636 000 322.3 400 000 202.7 34 0.865 21.96 596 887 0.0273 0.0896
600 000 304.0 377 000 191.0 34 0.840 21.34 562 837 0.0289 0.0948
550 000 278.7 346 000 175.3 34 0.804 20.42 516 767 0.0315 0.103
500 000 253.4 314 000 159.1 30 0.766 19.46 469 697 0.0347 0.114
477 000 241.7 300 000 152.0 30 0.747 18.96 447 665 0.0364 0.119
450 000 228.0 283 000 143.4 30 0.727 18.47 422 628 0.0385 0.126
400 000 202.7 252 000 127.7 24 0.685 17.40 375 558 0.0434 0.142
350 000 177.3 220 000 111.5 24 0.641 16.28 328 488 0.0495 0.162
336 400 170.5 211 600 0000 107.2 18 0.629 15.96 315 469 0.0516 0.169
300 000 152.0 188 700 95.62 18 0.594 15.09 281 418 0.0578 0.190
266 800 135.2 167 800 000 85.03 18 0.560 14.22 250 372 0.0650 0.213
250 000 126.7 157 200 79.65 18 0.542 13.77 234 349 0.0694 0.228
211 600 0000 107.2 133 100 00 67.44 17 0.498 12.65 198 295 0.082 0.269
167 800 000 85.03 105 600 0 53.51 15 0.443 11.25 157 234 0.103 0.338
133 100 00 67.44 83 690 1 42.41 11 0.395 10.03 125 186 0.130 0.426
105 600 0 53.51 66 360 2 33.63 7 0.352 8.94 99.0 147 0.164 0.538
83 690 1 42.41 52 620 3 26.66 7 0.313 7.95 78.4 117 0.207 0.679
66 360 2 33.63 41 740 4 21.15 6 0.283 7.19 62.2 92.6 0.261 0.856
52 620 3 26.66 33 090 5 16.77 6 0.252 6.40 49.3 73.4 0.330 1.08
41 740 4 21.15 26 240 6 13.30 6 0.225 5.72 39.1 58.2 0.416 1.36
33 090 5 16.77 20 820 7 10.55 6 0.200 5.08 31.0 46.2 0.523 1.72
26 240 6 13.30 16 510 8 8.366 6 0.178 4.52 24.6 36.6 0.661 2.17
20 820 7 10.55 13 090 9 6.633 6 0.159 4.04 19.5 29.0 0.834 2.74
16 510 8 8.366 10 380 10 5.260 6 0.142 3.61 15.5 23.0 1.05 3.44
13 090 9 6.633 8 234 11 4.172 6 0.126 3.20 12.3 18.3 1.32 4.33
10 380 10 5.260 6 530 12 3.309 6 0.113 2.87 9.73 14.5 1.67 5.48
6 530 12 3.309 4 110 14 2.083 6 0.089 2.26 6.12 9.11 2.67 8.76
4 110 14 2.083 2 580 16 1.307 6 0.071 1.80 3.85 5.73 4.22 13.8
2 580 16 1.307 1620 18 0.8209 6 0.054 1.37 2.42 3.60 6.71 22.0
1 620 18 0.8209 1020 20 0.5168 6 0.043 1.09 1.52 2.26 10.7 35.1
1 020 20 0.5168 642 22 0.3253 6 0.034 0.86 0.96 1.42 16.9 55.4
B901−04 (2011)
A
TABLE 2 Rating Factors
4.1.10 Heavy wood lagging, if required (see 19.2), and
Number of Layers Rating Factor, %
4.1.11 Place of inspection (see Section 18).
5. Requirements for Wires
5.1 The purchaser shall designate the temper of conductors
5 and above 89
of SIW compressed or SIW conductor.
A
This relates to 1350 alloy only. Refer to the Rating Factors Table in Specification
5.1.1 For conductor tempers other than H19, the manufac-
B801 for values for 8000 series alloys.
turer shall have the following options on manufacturing
method:
5.1.1.1 Strand the conductor from wires drawn to final
temper;
5.1.1.2 Strand the conductor from wires drawn to H19 sum of strengths of the component wires, calculated using the
temper and annealed to final temper prior to stranding; or nominal wire diameters and the specified minimum average
5.1.1.3 Strand the conductor from H19 wires and anneal the tensile strength given in Specification B800 for 8000 series
wire.
stranded conductor to final temper.
5.2 Beforestranding,thealuminumwireusedshallmeetthe 9.3 Calculations for rated strengths of 1350-H16, -H26,
-H14, -H24, -H142, and -H242 conductors shall be made on
requirements of Specifications B230/B230M, B609/B609M,or
B800, whichever is applicable. the basis of the strengths of the component wires, using the
nominal wire diameters and the specified maximum and
5.3 All wires in the conductor shall be of the same temper.
minimum tensile strengths for the appropriate temper of the
respective component wires given in Specification B609/
6. Joints
B609M. The minimum rated strengths of the conductors shall
6.1 Only cold-pressure joints or electric-butt, cold-upset
be taken as the sum of the calculated minimum strengths of the
joints may be made in the wires of SIW compressed or SIW
component wires multiplied by the rating factor given in Table
conductor.
2.Themaximumratedstrengthoftheconductorsshallbetaken
6.2 Theminimumdistancebetweenjointsinthewiresofthe
as the sum of the calculated maximum strength of the compo-
completed conductor shall be no less than 1 ft (0.3 m).
nent wires multiplied by the rating factors given in Table 2.
9.4 Calculations for rated strengths of 8000 series “O”
7. Lay
temper H1X and H2X conductors shall be made on the basis of
7.1 For SIW compressed stranded conductors manufactured
the strengths of the component wires, using the nominal wire
for subsequent covering or insulating, the average lay length of
diameter for the noncompacted construction and the specified
the wires shall be not less than 8 nor more than 16 times the
maximum and minimum tensile strengths of the appropriate
outer diameter of the finished conductor. For conductors of 37
temper of the respective component wires given in Specifica-
wires or more, this requirement shall apply to the wires in the
tion B800. The minimum rated strengths of the conductors
outer two layers only, unless otherwise agreed upon.
shall be taken as the sum of the calculated minimum strengths
of the component wires multiplied by the rating factor given in
7.2 Other lays for special purposes shall be furnished by
special agreement between the manufacturer and the purchaser Specification B801. The maximum rated strength of the con-
(Explanatory Note 3). ductors shall be taken as the sum of the calculated maximum
strengths of the component wires.
7.3 For conductors manufactured for subsequent covering
or insulating, the direction of lay of the outer layer shall be left 9.5 Rated-strength and breaking-strength values shall be
hand and may be reversed or unidirectional/unilay in succes- rounded to three significant figures, in the final value only, in
sive layers, unless otherwise specified by the purchaser. accordance with the rounding method of Practice E29.
8. Construction
10. Density
8.1 The areas of cross section, the minimum number of
10.1 Forthepurposeofcalculatingmass,crosssections,and
wires, and diameters of the finished strand shall conform to the
soforth,thedensityofaluminum1350shallbetakenas0.0975
3 3
requirements prescribed in Table 1.
lb/in. (2705 kg/m ) at 20°C. The density of 8000 series
3 3
aluminumalloysshallbetakenas0.098lb/in. (2.710g/cm )at
9. Rated Strength of Conductor
20°C.
9.1 The rated strength of 1350-H19 conductors shall be
taken as the percent, indicated in Table 2, of the sum of the 11. Mass and Electrical Resistance
strengths of the component wires, calculated using the nominal
11.1 The mass and electrical resistance of a unit length of a
wire diameters and the specified minimum average tensile
stranded conductor are a function of the length of lay. The
strength given in Specification B230/B230M for 1350-H19
approximate mass and electrical resistance may be determined
wire.
using the standard increments shown in Table 3. When greater
9.2 The rated strengths of 8000 series conductors shall be accuracy is desired, the increment based on the specific lay of
taken as the percent, indicated in Specification B801,ofthe the conductor may be calculated (Explanatory Note 6).
B901−04 (2011)
TABLE 3 Standard Increments Due to Stranding
14. Variation in Diameter
A
Size of Conductor, All Classes, cmils Increment (Increase) of Mass and
14.1 The average diameter of the conductor shall vary by
Electrical Resistance, %
4 000 000 to 3 000 001, incl 4 not more than +1 to –2 % from the nominal diameter specified
3 000 000 to 2 000 001, incl 3
in Table 1.
2 000 000 and under 2
A 2
Conversion Factors: 1 cmil = 5.067 E-04 mm , 1 mil = 2.54 E-02 mm, 1 lb/1000
15. Mechanical and Electrical Tests of Conductors NOT
ft = 1.488 E+00 kg/km, 1 ft = 3.048 E-01 m, 1 lb = 4.536 E-01 kg, 1 lbf 4.448 E-03
Annealed After Stranding
kN.
15.1 For 8000 series alloys, refer to the Mechanical and
Electrical Tests of Conductors in 8000 Series Alloys in “O”
11.2 The maximum electrical resistance of a unit length of Temper, H1X
...