1、Designation: B400/B400M 081B400/B400M 14Standard Specification forCompact Round Concentric-Lay-Stranded Aluminum 1350Conductors1This standard is issued under the fixed designation B400/B400M; the number immediately following the designation indicates the yearof original adoption or, in the case of r
2、evision, 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 NOTEDesignation was corrected editorially in October 2013.1. Scope1.1 This specification covers aluminum 13
3、50-H19 (extra hard), 1350-H16 or -H26 (n hard), 1350-H14 or -H24 (12 hard) and1350-H142 or -H242 (12 hard) bare compact-round concentric-lay-stranded conductors made from round or shaped wires for useas uninsulated electrical conductors or in covered or insulated electrical conductors. These conduct
4、ors shall be composed of acentral core surrounded by one or more roller or die compacted layers of helically applied wires (Explanatory Note 1 and Note2).1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be
5、 exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.NOTE 1Prior to 1975, aluminum 1350 was designated as EC aluminum.NOTE 2The aluminum and temper designations conform to ANSI Standa
6、rd H35.1. Aluminum 1350 corresponds to Unified Numbering SystemA91350 in accordance with Practice E527.2. Referenced Documents2.1 ASTM Standards:2B230/B230M Specification for Aluminum 1350H19 Wire for Electrical PurposesB231/B231M Specification for Concentric-Lay-Stranded Aluminum 1350 ConductorsB26
7、3 Test Method for Determination of Cross-Sectional Area of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electrical ConductorsB609/B609M Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical PurposesE29 Practice for Using Significant Dig
8、its in Test Data to Determine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.2 Other Documents:ANSI H35.1/H35.1(M) Alloy and Temper Designation Systems for Aluminum3NBS Handbook 100-Copper Wire Tables, of the National Bureau of Sta
9、ndards43. Classification3.1 For the purpose of this specification, conductors are classified as follows:3.1.1 Class AAFor bare conductors usually used in overhead lines.3.1.2 Class AFor conductors to be covered with weather-resistant materials, and for bare conductors where greater flexibilitythan i
10、s afforded by Class AA is required. Conductors indicated for further fabrication into tree wire or to be insulated and laidhelically with or around aluminum or ACSR messengers, shall be regarded as Class A conductors with respect to direction of layonly (see 6.3).1 This specification is under the ju
11、risdiction of ASTM Committee B01 on Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on Conductorsof Light Metals.Current edition approved Sept. 1, 2008Jan. 1, 2014. Published October 2008January 2014. Originally approved in 1963. Last previous edition approved in 200420
12、08 asB400 04.B400/B400M 081. DOI: 10.1520/B0400_B0400M-08E01.10.1520/B0400_B0400M-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary p
13、age on the ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.4 Available from National Technical Information Service (NTIS), 5285 Port Royal Rd., Springfield, VA 22161, http:/www.ntis.gov.This document is not
14、 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. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate
15、. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.3 Class BFor conductors to be insulated with various materials s
16、uch as rubber, paper, varnished cloth, and so forth, andfor the conductors indicated under Class A where greater flexibility is required.4. Ordering Information4.1 Orders for material under this specification shall include the following information:4.1.1 Quantity of each size and class (Table 1),4.1
17、.2 Conductor size; circular-mil area or AWG (Section 7),4.1.3 Class (Section 3),4.1.4 Temper (Section 13),4.1.5 Lay direction if nonstandard (see 6.3 and 6.4), reversed or unidirectional (see 6.4) or special (see 6.5),4.1.6 Special tension test, if required (see 17.2),4.1.7 Place of inspection (Sect
18、ion 18), and4.1.8 Packaging and Package Marking (Section 19).5. Joints5.1 1350-H19 Conductors for Use in Bare Overhead Lines:5.1.1 Joints may be made in the six outer wires of seven-strand conductors by cold-pressure welding or by electric-butt,cold-upset welding, but not by electric-butt welding. J
19、oints are not permitted in the finished center wire of seven-strandedconductors.5.1.2 Joints may be made in any of the wires in conductors of 18 or more wires by electric-butt welding, cold-pressure welding,or electric butt, cold-upset welding.5.1.3 The minimum distance between a wire joint and anot
20、her joint either in the same wire or in other wires of the completedconductor shall be 50 ft 15 m.5.2 Conductors of All Tempers to Be Insulated or Covered:5.2.1 Joints may be made in any of the wires of any stranding by electric-butt welding, cold-pressure welding, or electric-butt,cold-upset weldin
21、g.5.2.2 Joints in the individual wires in a finished conductor shall be not closer together than 1 ft 0.3 m for conductors of 19wires or less, or closer than 1 ft in a layer for conductors of more than 19 wires.5.3 No joint or splice shall be made in a stranded conductor as a whole.6. Lay6.1 The len
22、gth of lay or each layer for ClassesAAandAshall be not less than 11 nor more than 17.5 times the outside diameterof that layer.6.2 The length of lay of the outer layer for Class B shall be not less than 8 nor more than 16 times the outside diameter of thecompleted conductor, except that for sizes No
23、. 2AWG 33.6 mm2 and smaller, the maximum length of lay shall be not more than17.5 times the outside diameter of the completed conductor.6.3 The direction of lay of the outer layer shall be right-hand for ClassesAAandA, and it shall be reversed in successive layers.For Class A stranding where the con
24、ductors are to be insulated and laid helically with or around aluminum or ACSR messengers,the stranding lay direction may be unidirectional or unilay in successive layers.6.4 The direction of lay of the outer layer shall be left-hand for Class B, and it shall be reversed in successive layers,unidire
25、ctional, or unilay.6.5 Other lay requirements may be furnished by special agreement between the manufacturer and the purchaser.7. Construction7.1 The construction of the conductors shall be as shown in Table 1 as to number of wires and cross-sectional area of thecompleted conductor, and the lay shal
26、l be in accordance with Section 6.7.2 Wire used in the fabrication of conductor shall be of such dimensions as to produce a finished conductor having a nominalcross-sectional area and diameter as prescribed in Table 1.8. Rated Strength of Conductor8.1 The rated strength of 1350-H19 conductors shall
27、be taken as the percentage, indicated in Table 2, of the sum of the strengthsof the component wires, calculated on the basis of the nominal wire diameter for the corresponding noncompacted constructiongiven in Specification B231/B231M and the specified minimum average tensile strength given in Speci
28、fication B230/B230M for1350-H19 wire. A value of 0.1343 3.41 mm shall be used for the nominal wire diameterwire (Explanatory Note 6for the 1100kcmil compacted construction.).B400/B400M 142TABLE 1 Construction of Compact-Round Concentric-Lay-Stranded, Aluminum ConductorsNOTE 1Metric values listed bel
29、ow represent a soft conversion and as such they may not be the same as those metric values which are calculated fromthe basic metric density.Conductor Size Class Number ofWiresNominal CompactConductor DiameterNominalMass per1000 ft, lbNominal Massper Kilometer,kgANominal DC Resistanceat 20CCircular
30、Mils AWG mm2 in. mm /1000 ft /km1 500 000 760 B 91B,C 1.299 33.0 1406 2092 0.0116 0.03801 250 000 633 B 91B,C 1.184 30.1 1172 1744 0.0138 0.04531 100 000 557 B 61B 1.112 28.2 1031 1537 0.0157 0.05161 100 000 557 B 91B,C 1.112 28.2 1031 1534 0.0158 0.05181 000 000 507 B 61B 1.060 26.9 937 1394 0.0173
31、 0.05631 000 000 507 B 61D 1.060 26.9 937 1394 0.0173 0.0563900 000 456 B 61B 0.999 25.4 844 1257 0.0193 0.0632900 000 456 B 61D 0.999 25.4 844 1257 0.0193 0.0632800 000 405 B 61B 0.938 23.8 750 1116 0.0217 0.0712800 000 405 B 61D 0.938 23.8 750 1116 0.0217 0.0712750 000 380 B 61B 0.908 23.1 703 104
32、6 0.0231 0.0759750 000 380 B 61D 0.908 23.1 703 1046 0.0231 0.0759700 000 355 B 61B 0.877 22.3 656 976 0.0248 0.0813700 000 355 B 61D 0.877 22.3 656 976 0.0248 0.0813650 000 329 B 61B 0.845 21.5 609 906 0.0267 0.0875650 000 329 B 61D 0.845 21.5 609 906 0.0267 0.0875600 000 304 B 61B 0.813 20.7 563 8
33、38 0.0289 0.0948600 000 304 B 61D 0.813 20.7 563 838 0.0289 0.0948556 500 282 AA 19C 0.780 19.8 521 775 0.0312 0.102556 500 282 AA 19E 0.780 19.8 521 775 0.0312 0.102550 000 279 B 61B 0.775 19.7 516 768 0.0315 0.103550 000 279 B 61D 0.775 19.7 516 768 0.0315 0.103500 000 253 B 37D 0.736 18.7 468 696
34、 0.0347 0.114500 000 253 B 37F 0.736 18.7 468 696 0.0347 0.114500 000 253 AA 19C 0.736 18.7 468 696 0.0347 0.114500 000 253 AA 19E 0.736 18.7 468 696 0.0347 0.114477 000 242 AA 19C 0.722 18.3 447 665 0.0364 0.119477 000 242 AA 19E 0.722 18.3 447 665 0.0364 0.119450 000 228 B 37D 0.700 17.8 422 628 0
35、.0385 0.126450 000 228 B 37F 0.700 17.8 422 628 0.0385 0.126400 000 203 B 37D 0.659 16.7 375 558 0.0434 0.142400 000 203 B 37F 0.659 16.7 375 558 0.0434 0.142397 500 201 AA, A 19C 0.659 16.7 372 554 0.0436 0.143397 500 201 AA, A 19E 0.659 16.7 372 554 0.0436 0.143350 000 177 B 37D 0.616 15.6 328 488
36、 0.0495 0.162350 000 177 B 37F 0.616 15.6 328 488 0.0495 0.162350 000 177 A 19C 0.616 15.6 328 488 0.0495 0.162350 000 177 A 19E 0.616 15.6 328 488 0.0495 0.162336 400 170 A 19C 0.603 15.3 315 469 0.0516 0.169336 400 170 A 19E 0.603 15.3 315 469 0.0516 0.169336 400 170 AA 7 0.603 15.3 315 469 0.0516
37、 0.169300 000 152 B 37D 0.570 14.5 281 418 0.0578 0.190300 000 152 B 37F 0.570 14.5 281 418 0.0578 0.190300 000 152 A 19C 0.570 14.5 281 418 0.0578 0.190300 000 152 A 19E 0.570 14.5 281 418 0.0578 0.190300 000 152 AA 7 0.570 14.5 281 418 0.0578 0.190266 800 135 A 19C 0.537 13.6 250 372 0.0650 0.2132
38、66 800 135 A 19E 0.537 13.6 250 372 0.0650 0.213266 800 135 AA 7 0.537 13.6 250 372 0.0650 0.213250 000 127 B 37D 0.520 13.2 234 348 0.0694 0.228250 000 127 B 37F 0.520 13.2 234 348 0.0694 0.228250 000 127 A 19C 0.520 13.2 234 348 0.0694 0.228250 000 127 A 19E 0.520 13.2 234 348 0.0694 0.228250 000
39、127 AA 7 0.520 13.2 234 348 0.0694 0.228211 600 0000 107 B 19C 0.475 12.1 198 295 0.0820 0.269211 600 0000 107 B 19E 0.475 12.1 198 295 0.0820 0.269211 600 0000 107 AA, A 7 0.475 12.1 198 295 0.0820 0.269167 800 000 85.0 B 19C 0.423 10.7 157 234 0.103 0.338167 800 000 85.0 B 19E 0.423 10.7 157 234 0
40、.103 0.338167 800 000 85.0 AA, A 7 0.423 10.7 157 234 0.103 0.338133 100 00 67.4 B 19C 0.376 9.55 125 186 0.130 0.428133 100 00 67.4 B 19E 0.376 9.55 125 186 0.130 0.428133 100 00 67.4 AA, A 7 0.376 9.55 125 186 0.130 0.428105 600 0 53.5 B 19C 0.336 8.53 98.9 147 0.164 0.539105 600 0 53.5 B 19E 0.33
41、6 8.53 98.9 147 0.164 0.539105 600 0 53.5 AA, A 7 0.336 8.53 98.9 147 0.164 0.53983 690 1 42.4 B 19C 0.299 7.59 78.4 117 0.207 0.68083 690 1 42.4 B 19E 0.299 7.59 78.4 117 0.207 0.68083 690 1 42.4 AA, A 7 0.299 7.59 78.4 117 0.207 0.68066 360 2 33.6 AA, A, B 7 0.268 6.81 62.2 92.6 0.261 0.857B400/B4
42、00M 1438.2 Calculations for rated strengths of 1350-H16, -H26, -H14, -H24, -H142, and -H242 conductors shall be made on the basisof the strengths of the component wires using the nominal wire diameter for the noncompacted construction given in SpecificationB231/B231M and the specified maximum and mi
43、nimum tensile strengths for the appropriate temper of the respective componentwires given in Specification B609/B609M. The minimum rated strengths of the conductors shall be taken as the sum of thecalculated minimum strengths of the component wires multiplied by the rating factor given in Table 2.Th
44、e maximum rated strengthof the conductors shall be taken as the sum of the calculated maximum strengths of the component wires.Awires (Explanatory Note6value of 0.1343 3.41 mm shall be used for the nominal wire diameter for the 1100 kcmil compacted construction.).8.3 Rated-strength and breaking-stre
45、ngth values shall be rounded to three significant figures, in the final value only, inaccordance with the rounding method of Practice E29.8.4 Rated strengths of conductors are given in Table 3.9. Density9.1 For the purpose of calculating mass, linear density, cross sections, and so forth, the densit
46、y of aluminum 1350 shall be takenas 2705 kg/m3 (0.0975 lb/in.3) at 20C.10. Mass and Electrical Resistance10.1 The mass and electrical resistance of a unit length of stranded conductor are a function of the length of lay. Theapproximate mass and electrical resistance may be determined using an increm
47、ent of 2 %. When greater accuracy is desired, theincrement based on the specific lay of the conductor may be calculated (Explanatory Note 1).10.2 The maximum electrical resistance of a unit length of stranded conductor shall not exceed the nominal dc resistance (Table1) +2 % (Explanatory Note 1).10.
48、2.1 When the dc resistance is measured at other than 20C, it is to corrected by using the multiplying factor given in Table4.10.3 For conductors to be used in covered or insulated wires or cables, direct current (DC) resistance measurement may be usedinstead of the method outlined in Section 14 to d
49、etermine compliance with this specification.11. Mechanical and Electrical Tests of Conductors Fabricated from Wires other than 1350-H26, -H24, or -H242 andAnnealed after Stranding to Meet 1350-H26, -H24, or -H242 Requirements11.1 The completed conductor shall be tested as a unit. The minimum breaking strength of bare conductors shall be not less thanminimum rated strength if failure occurs in the free length at least 1 in. 25 mm beyond the end of either gripping device, or shallbe not less than 95 % of the minimum rated strength if failure occ
