1、Designation: B911/B911M 12 (Reapproved 2016)Standard Specification forACSR Twisted Pair Conductor (ACSR/TP)1This standard is issued under the fixed designation B911/B911M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of
2、 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. Scope1.1 This specification coversACSR Twisted Pair Conductor(ACSR/TP) for use as overhead electric conductors (see Notes1 and
3、 2).NOTE 1The conductor is fabricated from two component ACSRconductors of the same size twisted helically around each other. Thisconductor is identified by the code name of the component ACSRconductor followed by /TP or the size and type of the component ACSRconductor followed by /TP.NOTE 2There ar
4、e registered trademark symbols that are also used toidentify the twisted pair notation. Consult cable manufacturers foradditional details.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalent
5、s; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.2.1 For conductor sizes designated by AWG or kcmil, therequirements in SI units have been numerically converted fromcorresponding values stated or
6、derived in inch-pound units. Forconductor sizes designated by SI units only, the requirementsare stated or derived in SI units. For density, resistivity, andtemperature, the values stated in SI units are to be regarded asstandard.1.3 This standard does not purport to address all of thesafety concern
7、s, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on thedate
8、of material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B232/B232M Specification for Concentric-Lay-StrandedAluminum Conductors, Coated-Steel Reinforced (ACSR)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 component conductors
9、the two conductors twisted tofabricate the finished ACSR/TP.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size,4.1.1.1 Conductor Sizekcmil area of the fabricatedACSR/TP (2 kcmil area of one of the componentconduc
10、tors),4.1.2 Conductor type and the number of wires of thecomponent conductors,4.1.3 The type of steel core wire and type of coating,4.1.4 Place of inspection,4.1.5 Package size and type,4.1.6 Special package markings, if required, and4.1.7 Heavy wood lagging, if required.5. Requirements for Componen
11、t Conductors5.1 Before twisting, the component conductors shall con-form to the requirements of Specification B232/B232M.6. Twist6.1 The component conductors shall be twisted about them-selves with a complete twist every 9 ft 6 1 ft. This twist lengthshall be measured between the twisting machine an
12、d thetake-up reel with normal take-up tension on the ACSR/TP.NOTE 3The twist length can be altered as the ACSR/TP is wound uponto the take-up reel. It may not have the same twist length as when theTP is removed from the reel.6.2 The direction of the twist shall be left hand.1This specification is un
13、der the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Oct. 1, 2016. Published October 2016. Originallyapproved in 2000. Last previous edition approved in 2012 as B911/B911M 12.D
14、OI: 10.1520/B0911_B0911M-12R16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,
15、100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE 1 Construction Requirements for TP Type Conductor Using Aluminum Conductor, Steel Reinforced (ACSR)Code WordAEquivalentSize AWG orkcmilComponent Composition Outer Dimensions in.Nominal MassBlb/1000ft Rated Strg
16、. lbCResistanceDOhms/1000ftdc at 20CAWG orkcmil Aluminum Steel minor majorSwan / TP 1 4 6 0.0834 1 0.0834 0.250 0.500 115 3700 0.2016Swanate / TP 1 4 7 0.0772 1 0.1029 0.257 0.514 115 4720 0.1994Swallow / TP 1/0 3 6 0.0937 1 0.0937 0.281 0.562 145 4600 0.1601Sparrow / TP 2/0 2 6 0.1052 1 0.1052 0.31
17、6 0.632 182 5660 0.1267Sparate / TP 2/0 2 7 0.0974 1 0.1299 0.325 0.650 213 7260 0.1253Robin / TP 3/0 1 6 0.1181 1 0.1181 0.354 0.708 230 7120 0.1005Raven / TP 4/0 1/0 6 0.1327 1 0.1327 0.398 0.796 290 8760 0.0796Quail / TP 266.2 2/0 6 0.1489 1 0.1489 0.447 0.894 336 10600 0.0633Pigeon / TP 335.6 3/
18、0 6 0.1672 1 0.1672 0.502 1.004 461 13200 0.0502Penguin / TP 423.2 4/0 6 0.1878 1 0.1878 0.563 1.126 582 16700 0.0398Jaeger / TP 456.4 228.2 18 0.1126 1 0.1126 0.563 1.126 495 12100 0.0376Waxwing / TP 533.6 266.8 18 0.1217 1 0.1217 0.609 1.218 579 13700 0.0322Spoonbill / TP 533.6 266.8 22 0.1101 7 0
19、.0612 0.624 1.248 642 17400 0.0321Scaup / TP 533.6 266.8 24 0.1054 7 0.0703 0.633 1.266 687 20000 0.0320Partridge / TP 533.6 266.8 26 0.1013 7 0.0788 0.642 1.284 734 22600 0.0319Junco / TP 533.6 266.8 30 0.0943 7 0.0943 0.660 1.320 835 27800 0.0316Ostrich / TP 600.0 300.0 26 0.1074 7 0.0835 0.680 1.
20、360 825 25400 0.0283Merlin / TP 672.8 336.4 18 0.1367 1 0.1367 0.683 1.366 730 17400 0.0255Trogon / TP 672.8 336.4 20 0.1297 7 0.0576 0.692 1.384 757 19000 0.0256Woodcock / TP 672.8 336.4 22 0.1237 7 0.0687 0.701 1.402 809 21800 0.0255Widgeon / TP 672.8 336.4 24 0.1184 7 0.0789 0.710 1.420 866 25000
21、 0.0254Linnet / TP 672.8 336.4 26 0.1137 7 0.0884 0.720 1.440 925 28200 0.0253Oriole / TP 672.8 336.4 30 0.1059 7 0.1059 0.741 1.482 1053 34600 0.0251Chickadee / TP 795.0 397.5 18 0.1486 1 0.1486 0.743 1.486 862 19900 0.0216Ptarmigan / TP 795.0 397.5 20 0.1410 7 0.0627 0.752 1.504 895 22200 0.0216St
22、ork / TP 795.0 397.5 22 0.1344 7 0.0747 0.762 1.524 956 25800 0.0216Brant / TP 795.0 397.5 24 0.1287 7 0.0858 0.772 1.544 1023 29200 0.0215Ibis / TP 795.0 397.5 26 0.1236 7 0.0961 0.783 1.566 1093 32600 0.0214Lark / TP 795.0 397.5 30 0.1151 7 0.1151 0.806 1.612 1244 40600 0.0212Pelican / TP 954.0 47
23、7.0 18 0.1628 1 0.1628 0.814 1.628 1035 23600 0.0180Tailorbird / TP 954.0 477.0 20 0.1544 7 0.0686 0.823 1.646 1074 26200 0.0180Toucan / TP 954.0 477.0 22 0.1472 7 0.0818 0.834 1.668 1148 30400 0.0180Flicker / TP 954.0 477.0 24 0.1410 7 0.0940 0.846 1.692 1227 34400 0.0179Hawk / TP 954.0 477.0 26 0.
24、1354 7 0.1053 0.858 1.716 1312 39000 0.0178Hen / TP 954.0 477.0 30 0.1261 7 0.1261 0.883 1.766 1493 47600 0.0177Heron / TP 1000.0 500.0 30 0.1291 7 0.1291 0.904 1.808 1565 50000 0.0169Nightingale/TP 1034.0 517.0 18 0.1694 1 0.1694 0.848 1.696 1121 25400 0.0166Creeper / TP 1034.0 517.0 20 0.1607 7 0.
25、0714 0.858 1.716 1164 28400 0.0166Osprey / TP 1113.0 556.5 18 0.1758 1 0.1758 0.879 1.758 1207 27400 0.0154Tody / TP 1113.0 556.5 20 0.1668 7 0.0741 0.890 1.780 1253 30600 0.0155Sapsucker / TP 1113.0 556.5 22 0.1590 7 0.0883 0.901 1.802 1339 35200 0.0154Parakeet / TP 1113.0 556.5 24 0.1523 7 0.1015
26、0.914 1.828 1432 39600 0.0153Dove / TP 1113.0 556.5 26 0.1463 7 0.1138 0.927 1.854 1530 45200 0.0153Eagle / TP 1113.0 556.5 30 0.1362 7 0.1362 0.953 1.906 1741 55600 0.0152Kittiwake / TP 1192.0 596.0 18 0.1820 1 0.1820 0.910 1.820 1293 29400 0.0144Skua / TP 1210.0 605.0 20 0.1739 7 0.0773 0.928 1.85
27、6 1362 33200 0.0142Peacock / TP 1210.0 605.0 24 0.1588 7 0.1059 0.953 1.906 1557 43200 0.0141Squab / TP 1210.0 605.0 26 0.1525 7 0.1186 0.966 1.932 1664 48600 0.0141Wood Duck/ TP 1210.0 605.0 30 0.1420 7 0.1420 0.994 1.988 1893 57800 0.0140Teal / TP 1210.0 605.0 30 0.1420 19 0.0852 0.994 1.988 1877
28、60000 0.0140Swift / TP 1272.0 636.0 36 0.1329 1 0.1329 0.930 1.860 1286 27600 0.0135Kingbird / TP 1272.0 636.0 18 0.1880 1 0.1880 0.940 1.880 1379 31400 0.0135Turacos / TP 1272.0 636.0 20 0.1783 7 0.0792 0.951 1.902 1432 34800 0.0135Rook / TP 1272.0 636.0 24 0.1628 7 0.1085 0.977 1.954 1530 45200 0.
29、0134Grosbeak / TP 1272.0 636.0 26 0.1564 7 0.1216 0.990 1.980 1637 50400 0.0134Scoter / TP 1272.0 636.0 30 0.1456 7 0.1456 1.019 2.038 1749 60800 0.0133Egret / TP 1272.0 636.0 30 0.1456 19 0.0874 1.019 2.038 1974 63000 0.0133Siskin / TP 1333.2 666.6 20 0.1826 7 0.0812 0.974 1.948 1501 36600 0.0129Fl
30、amingo / TP 1333.2 666.6 24 0.1667 7 0.1111 1.000 2.000 1715 47600 0.0128Gannet / TP 1333.2 666.6 26 0.1601 7 0.1245 1.014 2.028 1833 52800 0.0128Dunlin / TP 1431.0 715.5 20 0.1891 7 0.0840 1.008 2.016 1611 39200 0.0120Stilt / TP 1431.0 715.5 24 0.1727 7 0.1151 1.036 2.072 1841 51000 0.0119Starling
31、/ TP 1431.0 715.5 26 0.1659 7 0.1290 1.051 2.102 1968 56800 0.0119Redwing / TP 1431.0 715.5 30 0.1544 19 0.0926 1.081 2.162 2220 69200 0.0118Coot / TP 1590.0 795.0 36 0.1486 1 0.1486 1.040 2.080 1607 33400 0.0108Macaw / TP 1590.0 795.0 42 0.1376 7 0.0764 1.055 2.110 1715 40200 0.0108Turbit / TP 1590
32、.0 795.0 20 0.1994 7 0.0886 1.063 2.126 1790 43600 0.0108Tern / TP 1590.0 795.0 45 0.1329 7 0.0886 1.063 2.126 1790 44200 0.0108Puffin / TP 1590.0 795.0 22 0.1901 7 0.1056 1.077 2.154 1913 49600 0.0108Cuckoo / TP 1590.0 795.0 24 0.1820 7 0.1213 1.092 2.184 2046 55800 0.0107Condor / TP 1590.0 795.0 5
33、4 0.1213 7 0.1213 1.092 2.184 2046 56400 0.0107Drake / TP 1590.0 795.0 26 0.1749 7 0.1360 1.108 2.216 2186 63000 0.0107Mallard / TP 1590.0 795.0 30 0.1628 19 0.0977 1.140 2.280 2467 76800 0.0106B911/B911M 12 (2016)27. Construction Requirements7.1 Construction requirements are given in Table 1 forACS
34、R/TP.7.2 The twisted pair components shall be continuousthroughout the reel. No joints in the finished componentconductors are allowed.7.3 The major and minor dimensions of the conductor shallbe defined as indicated in Fig. 1.8. Rated Strength of TP Conductor8.1 The rated strength of a completed ACS
35、R/TP conductorshall be two times the rated strength of one of the componentstranded conductors as given in Specification B232/B232M.9. Mass Per Unit Length9.1 The mass per unit length of a completed ACSR/TPconductor shall be two times the mass per unit length of one ofthe component conductors as giv
36、en in Specification B232/B232M.10. Workmanship, Finish, and Appearance10.1 The conductor shall be free of all imperfections notconsistent with good commercial practice.11. Mechanical and Electrical Tests11.1 Tests for the electrical and mechanical properties shallbe made on the component conductors
37、as required in theappropriate ASTM Specifications.11.2 Tests for the demonstration of rated strength of thecompleted ACSR/TP conductor are not required by this speci-fication but may be made if agreed upon between the manu-facturer and the purchaser at the time of placing an order. Iftested, the bre
38、aking strength of the completed ACSR/TP shallbe determined by performing a breaking test of each of thecomponent conductors before twisting as given in the appro-priate component conductors ASTM Specification. The ratedstrength of the completed ACSR/TP shall be two times thebreaking strength of the
39、component conductor that had thelowest breaking strength.11.3 The critical aspect of ACSR/TP conductor is that thecomponent conductors be of equal length and tension in thecompleted ACSR/TP. To test for this condition during thetwisting process a mark (using felt tip pin or spray paint) is tobe made
40、 at the same longitudinal location on each of thecomponent conductors before the component conductors havepassed through the twisting process. These two marks shall beobserved and followed visually during the twisting and to thetake-up reel. If the marks move back and forth relative to eachother les
41、s than 1.5 in. (3.8 cm) the component tensions andlengths shall be considered equal and the ACSR/TP is accept-able. If one mark moves steadily away from the other mark thecomponent tensions and lengths shall be considered unequaland twisting machine adjustments must be made and anothermarking test m
42、ade. This marking test is to be made in the first100 ft (30 m) of each reel ofACSR/TPproduced. If componenttensions cannot be adjusted equally after three tries, 300 ft (90TABLE 1 ContinuedCode WordAEquivalentSize AWG orkcmilComponent Composition Outer Dimensions in.Nominal MassBlb/1000ft Rated Strg
43、. lbCResistanceDOhms/1000ftdc at 20CAWG orkcmil Aluminum Steel minor majorSurfbird / TP 1749.0 874.5 20 0.2091 7 0.0929 1.115 2.230 1969 47400 0.0098Turnstone / TP 1800.0 900.0 20 0.2121 7 0.0943 1.131 2.262 2026 48200 0.0096Ruddy / TP 1800.0 900.0 45 0.1414 7 0.0943 1.131 2.262 2026 48800 0.0096Can
44、ary / TP 1800.0 900.0 54 0.1291 7 0.1291 1.162 2.324 2316 63800 0.0095Catbird / TP 1908.0 954.0 36 0.1628 1 0.1628 1.140 2.280 1929 39600 0.0090Phoenix / TP 1908.0 954.0 42 0.1507 7 0.0387 1.155 2.310 2058 46800 0.0090Corncrake/ TP 1908.0 954.0 20 0.2184 7 0.0971 1.165 2.330 2148 51200 0.0090Rail /
45、TP 1908.0 954.0 45 0.1456 7 0.0971 1.165 2.330 2148 51800 0.0090Towhee / TP 1908.0 954.0 48 0.1410 7 0.1097 1.175 2.350 2245 57000 0.0090Redbird / TP 1908.0 954.0 24 0.1994 7 0.1329 1.196 2.392 2455 67000 0.0089Cardinal / TP 1908.0 954.0 54 0.1329 7 0.1329 1.196 2.392 2455 67600 0.0090Canvasback /TP
46、 1908.0 954.0 30 0.1783 19 0.1070 1.248 2.497 2961 92200 0.0089Snowbird / TP 2067.0 1033.5 42 0.1569 7 0.0872 1.203 2.406 2230 50800 0.0083Ortolan / TP 2067.0 1033.5 45 0.1515 7 0.1010 1.212 2.424 2327 55400 0.0083Whooper / TP 2067.0 1033.5 48 0.1467 7 0.1141 1.223 2.446 2432 61600 0.0083Curlew / TP
47、 2067.0 1033.5 54 0.1383 7 0.1383 1.245 2.490 2659 73300 0.0083Avocet / TP 2226.0 1113.0 42 0.1628 7 0.0904 1.248 2.496 2401 54200 0.0077Bluejay / TP 2226.0 1113.0 45 0.1573 7 0.1049 1.259 2.518 2506 59600 0.0077Bullfinch / TP 2226.0 1113.0 48 0.1523 7 0.1185 1.269 2.538 2619 65600 0.0077Finch / TP
48、2226.0 1113.0 54 0.1436 19 0.0862 1.293 2.586 2858 78200 0.0077ACode words as shown denote ACSR/TP with Class A galvanized core. Add suffix as specified by B232/B232M to denote strength and coating type of steel core.BMass based on relative density at 20C of 0.0875 lb/in3for aluminum and 0.281 lb/in3for steel. To conver
