ASTM B399/B399M-04(2010)

Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors

ABSTRACT
This specification covers concentric-lay-stranded conductors, made from round aluminum-alloy 6201-T81 (hard: solution heat-treated, cold worked, and then artificially aged) wires, for use for electrical purposes. These conductors shall be constructed with a central core surrounded by one or more layers of helically laid wires. Conductors are classified as follows: Class AA (for bare conductors usually used in overhead lines) and Class A ( for conductors to be covered with weather resistant materials). The concentric-lay-stranded aluminum-alloy 6201 conductors sized to have diameter equal to ACSR, Class AA, and class A shall conform to the described construction requirements. The maximum electrical resistance of a unit length of stranded conductor shall not exceed the required nominal DC resistance. The concentric-lay-stranded aluminum-alloy 6201 conductors sized by standard areas, Class AA, and Class A shall conform to the described construction requirements. Minimum distance between joints in the complex and rating factors shall be described.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors, made from round aluminum-alloy 6201-T81 (hard: solution heat-treated, cold worked, and then artificially aged) wires, for use for electrical purposes. These conductors shall be constructed with a central core surrounded by one or more layers of helically laid wires (Explanatory Notes 1 and 2).  
Note 1—The aluminum alloy and temper designations conform to ANSI H35.1/H35.1[M]. Aluminum-alloy 6201 corresponds to Unified Numbering System alloy A96201 in accordance with Practice E527.
1.2 The values stated in inch-pound units or SI units are to be regarded separately as standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.

General Information

• Status: Historical
• Publication Date: 30-Sep-2010
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.07 - Conductors of Light Metals

Relations

• Replaces: ASTM B399/B399M-04 - Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors
• Effective Date: 01-Oct-2010
• Referred By: ASTM B1006-17 - Standard Specification for Electrical Overhead Conductor Code Word Names
• Effective Date: 01-Oct-2010

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: B399/B399M −04(Reapproved 2010)
Standard Specification for
Concentric-Lay-Stranded Aluminum-Alloy 6201-T81
Conductors
This standard is issued under the fixed designation B399/B399M; 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 E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification covers concentric-lay-stranded
E527 Practice for Numbering Metals and Alloys in the
conductors,madefromroundaluminum-alloy6201-T81(hard:
Unified Numbering System (UNS)
solution heat-treated, cold worked, and then artificially aged)
2.3 ANSI Standards:
wires,foruseforelectricalpurposes.Theseconductorsshallbe
ANSI H35.1, American National Standard for Alloy and
constructed with a central core surrounded by one or more
Temper Designation Systems for Aluminum
layers of helically laid wires (Explanatory Notes 1 and 2).
ANSI H35.1[M] American National Standard Alloy and
NOTE 1—The aluminum alloy and temper designations conform to
Temper Designation Systems for Aluminum [Metric]
ANSI H35.1/H35.1[M]. Aluminum-alloy 6201 corresponds to Unified
2.4 NIST Standards:
Numbering System alloy A96201 in accordance with Practice E527.
NBS Handbook 100—CopperWire Tables of the National
1.2 The values stated in inch-pound units or SI units are to
Bureau of Standards
be regarded separately as standard. The values in each system
2.5 Aluminum Association Publication:
are not exact equivalents; therefore, each system shall be used
Publication 50, Code Words for Overhead Aluminum Elec-
independently of the other. Combining values from the two
trical Conductors
systems may result in nonconformance with the specification.
1.2.1 For density, resistivity and temperature, the values
3. Classification
stated in SI units are to be regarded as standard.
3.1 For the purpose of this specification, conductors are
classified as follows (Explanatory Notes 1 and 2):
2. Referenced Documents
3.1.1 Class AA—For bare conductors usually used in over-
2.1 The following documents of the issue in effect on date
head lines.
of material purchase form a part of this specification to the
3.1.2 Class A—For conductors to be covered with weather-
extent referenced herein:
resistant materials.
2.2 ASTM Standards:
4. Ordering Information
B193 Test Method for Resistivity of Electrical Conductor
Materials
4.1 Orders for material under this specification shall include
B263 Test Method for Determination of Cross-Sectional
the following information:
Area of Stranded Conductors
4.1.1 Quantity of each size, stranding, and class,
B354 Terminology Relating to Uninsulated Metallic Electri-
4.1.2 Conductor size, area, and aluminum 1350 equivalent
cal Conductors
size (if required) (Section 8 and Table 1, Table 2,or Table 3),
B398/B398M Specification for Aluminum-Alloy 6201-T81
4.1.3 Number of wires (Table 1, Table 2 or Table 3),
Wire for Electrical Purposes
4.1.4 Direction of lay of outer layer of aluminum wires if
B682 SpecificationforMetricSizesofElectricalConductors
other than right-hand (see 7.4),
4.1.5 Compressed stranding, if required (see 8.2),
4.1.6 Special tension test, if required (see 9.2 and 14.2),
This specification is under the jurisdiction of ASTM Committee B01 on
4.1.7 Place of inspection (see 15.2),
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
Conductors of Light Metals.
Current edition approved Oct. 1, 2010. Published December 2010. Originally
approved in 1963. Last previous edition approved in 2004 as B399/B399M – 04. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/B0399_B0399M-04R10. 4th Floor, New York, NY 10036.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from National Technical Information Service (NTIS), U.S. Depart-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM ment of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.
Standards volume information, refer to the standard’s Document Summary page on AvailablefromtheAluminumAssociation,Inc.,90019thStreetNW,Suite300,
the ASTM website. Washington, DC 20006.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B399/B399M − 04 (2010)
TABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum-Alloy 6201 Conductors Sized to Have Diameter Equal to
ACSR, Class AA and Class A
NOTE 1—Metric values listed below represent a soft conversion and as such they may not be the same as those metric masses which are calculated
from the basic metric density.
Approximate
Aluminum 1350 Size and Stranding Nominal dc
Conductor Code Rated
Size Having of ACSR with Required Construction Mass Resistance
A
Size Words Strength
Equivalent Equal Diameter @ 20°C
Resistance
Diameter
Number
Size
Strand- lb per kg per ohm per ohm per
2 B 2
of Wires
cmil mm cmil AWG mm of Class kips kN
ing 1000 ft km 1000 ft km
B 2
Wires
cmil AWG mm in. mm
1 439 200 729 — 1 272 000 . . . 644.5 1 272 000 . . . 644.5 54/7 61 0.1536 3.90 AA 1342 1999 46.8 207 0.01400 0.04597
1 348 800 685 — 1 192 500 . . . 604.2 1 192 500 . . . 604.2 54/7 61 0.1487 3.78 AA 1258 1878 43.9 194 0.01494 0.04893
1 259 600 638 — 1 113 000 . . . 564.0 1 113 000 . . . 564.0 54/7 61 0.1437 3.65 AA 1175 1751 41.0 181 0.01600 0.05248
1 165 100 590 — 1 033 500 . . . 523.7 1 033 500 . . . 523.7 54/7 61 0.1382 3.51 AA 1086 1620 37.9 167 0.01730 0.05675
1 077 400 547 — 954 000 . . . 483.4 954 000 . . . 483.4 54/7 61 0.1329 3.38 AA 1005 1502 35.0 156 0.01870 0.06120
927 200 470 Greeley 795 000 . . . 402.8 795 000 . . . 402.8 26/7 37 0.1583 4.02 AA 864.6 1289 30.5 135 0.02173 0.07133
740 800 375 Flint 636 000 . . . 322.3 636 000 . . . 322.3 26/7 37 0.1415 3.59 AA 690.8 1028 24.4 107 0.02720 0.08944
652 400 331 Elgin 556 500 . . . 282.0 556 500 . . . 282.0 26/7 19 0.1853 4.71 AA 608.3 908.3 21.9 97.0 0.03089 0.1012
559 500 284 Darien 477 000 . . . 241.7 477 000 . . . 241.7 26/7 19 0.1716 4.36 AA 521.7 778.3 18.8 83.1 0.03602 0.1181
465 400 236 Cairo 397 500 . . . 201.4 397 500 . . . 201.4 26/7 19 0.1565 3.98 AA 433.9 648.6 15.6 69.2 0.04330 0.1417
394 500 200 Canton 336 400 . . . 170.5 336 400 . . . 170.5 26/7 19 0.1441 3.66 AA, A 367.9 548.5 13.3 58.6 0.05107 0.1676
312 800 159 Butte 266 800 . . . 135.2 266 800 . . . 135.2 26/7 19 0.1283 3.26 A 291.6 435.1 10.5 46.5 0.06443 0.2112
246 900 125 Alliance 211 600 0000 107.2 211 600 0000 107.2 6/1 7 0.1878 4.77 AA 230.2 343.2 8.56 37.8 0.08162 0.2678
195 700 99.3 Am- 167 800 000 85.0 167 800 000 85.0 6/1 7 0.1672 4.25 AA, A 182.5 272.5 6.79 30.0 0.1030 0.3373
herst
155 400 78.6 Ana- 133 100 00 67.4 133 100 00 67.4 6/1 7 0.1490 3.78 AA, A 144.9 215.6 5.39 23.8 0.1297 0.4264
heim
123 300 62.4 Azusa 105 600 0 53.5 105 600 0 53.5 6/1 7 0.1327 3.37 AA, A 114.9 171.3 4.27 18.9 0.1635 0.5365
77 470 39.2 Ames 66 360 2 33.6 66 360 2 33.6 6/1 7 0.1052 2.67 AA, A 72.24 107.5 2.80 12.4 0.2601 0.8547
48 690 24.7 Alton 41 740 4 21.1 41 740 4 21.1 6/1 7 0.0834 2.12 A 45.40 67.80 1.76 7.83 0.4139 1.356
30 580 15.5 Akron 26 240 6 13.3 26 240 6 13.3 6/1 7 0.0661 1.68 A 28.52 42.58 1.11 4.92 0.6588 2.159
A
Code words shown in this column are obtained from, “Publication 50, Code Words for OverheadAluminum Electrical Conductors,” by theAluminumAssociation. They
are provided here for information only.
B
Conversion factors: 1 mil = 2.54 E-02 mm
1 cmil = 5.067 E-04 mm
1 in. = 25.4 mm
1 lb/1000 ft = 1.488E+00kg/km
1 ft = 3.048 E-01 m
1 lb = 4.536 E-01 kg
1 lbf = 4.448 E-03 kN
4.1.8 Special package marking, if required (Section 16), 7. Lay
4.1.9 Package size and type (see 16.1), and
7.1 For ClassAAconductors, the preferred lay of a layer of
4.1.10 Heavy wood lagging, if required (see 16.4).
wires is 13.5 times the outside diameter of that layer, but the
lay shall be not less than 10 nor more than 16 times this
5. Requirements of Wires
diameter.
5.1 The aluminum-alloy wire used shall conform to the
requirements of Specification B398/B398M. 7.2 For ClassAconductors, the lay of a layer of wires shall
be not less than 8 nor more than 16 times the outside diameter
6. Joints
of that layer, except that for conductors composed of 37 wires
or more, this requirement shall apply only to the two outer
6.1 In conductors composed of seven wires, only cold-
layers. The lay of the layers other than the two outer layers
pressure joints or electric-butt, cold-upset joints are permitted
shall be at the option of the manufacturer, unless otherwise
in the six outer finished wires; no joints are permitted in the
agreed upon.
center wire. In other conductors, cold-pressure welds, electric-
butt, cold-upset welds, or electric-butt welds may be made in
7.3 Other lays for special purposes shall be furnished by
the finished wires composing conductors, but such joints shall
agreement between the manufacturer and the purchaser.
be not closer than prescribed in Table 4. Following welding,
electric-butt welds shall be annealed for a distance of at least 6 7.4 Thedirectionoflayoftheouterlayershallberight-hand
in. [150 mm] on each side of the weld. unless specified otherwise by the purchaser.
B399/B399M − 04 (2010)
TABLE 2 Construction Requirements of Concentric-Lay-Stranded Aluminum-Alloy 6201 Conductors Sized by Standard Areas, Class AA
and Class A
NOTE 1—Metric values listed below represent a soft conversion and as such they may not be the same as those metric masses which are calculated
from the basic metric density.
Nominal dc
Conductor Size Required Construction Mass Rated Strength
Resistance @ 20°C
Diameter of Wires
Number of lb per kg per ohm per ohm per
cmil AWG mm Class kips kN
Wires 1000 ft 1000 m 1000 ft 1000 m
in. mm
1 750 000 . . . 886 61 0.1694 4.30 AA 1632 2431 56.9 251 0.01151 0.03781
1 500 000 . . . 759 61 0.1568 3.98 AA 1399 2082 48.8 215 0.01344 0.04414
1 250 000 . . . 631 61 0.1431 3.63 AA 1165 1732 40.6 179 0.01613 0.05306
1 000 000 . . . 508 37 0.1644 4.18 AA 932.5 1393 32.9 146 0.02015 0.06597
900 000 . . . 456 37 0.1560 3.96 AA 839.7 1250 29.6 131 0.02238 0.07351
800 000 . . . 404 37 0.1470 3.73 AA 745.6 1109 26.3 116 0.02520 0.08285
750 000 . . . 381 37 0.1424 3.62 AA 699.6 1045 24.7 109 0.02686 0.08796
700 000 . . . 354 37 0.1375 3.49 AA 652.3 971.2 23.0 101 0.02881 0.09464
650 000 . . . 330 37 0.1325 3.37 AA 605.7 905.5 21.4 94.9 0.03102 0.10150
600 000 . . . 303 37 0.1273 3.23 AA, A 559.1 831.9 20.6 91.0 0.03361 0.11049
550 000 . . . 279 37 0.1219 3.10 AA, A 512.7 766.2 18.9 83.9 0.03665 0.11995
500 000 . . . 253 19 0.1622 4.12 AA 466.1 695.0 16.8 74.2 0.04031 0.13224
450 000 . . . 228 19 0.1539 3.91 AA 419.6 626.0 15.1 66.8 0.04478 0.14683
400 000 . . . 203 19 0.1451 3.69 AA, A 373.0 557.5 13.4 59.5 0.05037 0.16486
350 000 . . . 178 19 0.1357 3.45 A 326.3 487.3 11.8 52.0 0.05759 0.18860
300 000 . . . 152 19 0.1257 3.19 A 280.0 416.7 10.5 46.6 0.06712 0.22059
250 000 . . . 126 19 0.1147 2.91 A 233.1 346.7 8.76 38.8 0.08061 0.26509
211 600 0000 107 7 0.1739 4.42 AA, A 197.4 294.7 7.34 32.5 0.09519 0.31188
167 800 000 84.9 7 0.1548 3.93 AA, A 156.4 233.0 5.82 25.7 0.12013 0.39450
133 100 00 67.3 7 0.1379 3.50 AA, A 124.1 184.8 4.62 20.4 0.15137 0.49738
105 600 0 53.5 7 0.1228 3.12 AA, A 98.43 146.8 3.82 17.0 0.19089 0.62592
66 360 2 33.5 7 0.0974 2.47 AA, A 61.92 92.00 2.40 10.6 0.30343 0.99870
41 740 4 21.1 7 0.0772 1.96 A 38.90 57.90 1.51 6.69 0.48300 1.5860
26 240 6 13.2 7 0.0612 1.55 A 24.49 36.20 0.949 4.18 0.76856 2.5361
7.5 The direction of lay shall be reversed in successive 9.2 Tests for determining the breaking strength of a conduc-
layers, unless otherwise specified by the purchaser. tor are not required by this specification but may be made if
agreed upon between the manufacturer and the purchaser at the
8. Construction
time of placing an order. When tested, the breaking strength of
a conductor shall be not less than the rated strength if failure
8.1 The cross-sectional areas and the numbers and diam-
occurs in the free length at least 1 in. [25 mm] beyond the end
eters of wires in the concentric-lay-stranded conductors shall
of either gripping device, or shall be not less than 95 % of the
conform to the requirements prescribed in Table 1, Table 2,or
rated strength if failure occurs inside, or within 1 in. [25 mm]
Table 3 as applicable (Explanatory Notes 2 and 6).
of the end of, either gripping device (Explanatory Note 3).
8.2 Wherecompressedstrandingisrequiredinorderthatthe
9.3 Rated strength and breaking strength values shall be
conductormaybeproperlyinsulated,oneormorelayersofany
rounded to three significant figures, in the final value only, in
stranded conductor consisting of 7 wires or more may be
accordance with the rounding method in Practice E29.
slightly compressed, thereby reducing the outside diameter of
the conductor by not more than 3 %, provided that the area of
10. Density
cross section after compressing is in accordance with Section
12. 10.1 For the purpose of calculating, mass, mass per unit
length, cross sections, and so forth, the density of aluminum-
NOTE 2—The user’s attention is called to the claim that certain
3 3
alloy6201shallbetakenas2690kg/m (0.097lb/in. )at20°C.
compressed strand constructions may be subject to patent rights, for
example: Patents 3,383,704 and 3,444,684.
11. Mass and Electrical Resistance
9. Rated Strength of Conductor
11.1 The mass and electrical resistance of a unit length of
9.1 The rated strength of a conductor shall be taken as that stranded conductor are a function of the length of lay. The
percentage, indicated in Table 5 of the sum of the strengths of appropriate mass and electrical resistance may be determined
the 6201 wires, calculated on the basis of the nominal wire using an increment of 2 %. When greater accuracy is desired,
diameter and the specified minimum average tensile strength theincrementbasedonthespecificlayoftheconductormaybe
given in Specification B398/B398M. calculated (Explanatory Note 4).
B399/B399M − 04 (2010)
TABLE 3 Construction Requirements and Rated Strengths of TABLE 6 Temperature Correction Factors for Conductor
Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors Resistance
Sized by Standard Areas, Class AA and Class A
Multiplying Factor for
Temperature, °C
Conversion to 20°C
NOTE 1—Sizes were selected from Specification B682.
0 1.075
Nominal dc
Required Construction
Rated 5 1.055
Conductor Mass, Resistance
10 1.036
Strengt
...