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Transformer Lead Cable

Bare, soft, stranded copper cable per ASTM specifications with paper wall insulation of various thicknesses.
MARKETS
Transformers:
General
Utility Distribution Transformers
Utility Power Transformers
Specialty Transformers
FEATURES AND BENEFITS
  • The insulation is thermally upgraded, 2 way stretch crepe paper or DuPont® Nomex® 411 crepe insulation.
  • Cable is also available with open cotton braid over the insulation.
  • Construction is multiple layers, helically wrapped, with the last tape glued in place. The outer layer has the the size and wall build printed on the cable.
TYPICAL APPLICATIONS
Utility transformers.
Flange Diameter Traverse Arbor Overall Width Drum Diameter
24″ W&M 6″ 1 9/16″ 8″ 14″
22″ Wood 11″ 5″ 12 1/2″ 12″
30″ Wood 11″ 5″ 12 1/2″ 16″
36″ Wood 18″ 3 5/8″ 22″ 24″
42″ Wood 24″ 3 5/8″ 28″ 24″
48″ Wood 24″ 3 5/8″ 28″ 24″
Packages Recommended for Preferred Sizes
6×24″W&M Small sizes/Short lengths 8 AWG & smaller
11×22″ W Small sizes/Medium lengths 6 AWG & smaller
11×30″ W Intermediate sizes/Short lengths 6 AWGto 3 AWG
11×36″ W Small sizes/Long lengths 4 AWGto 1 AWG
11×36″W Intermediate sizes/Medium lengths 4 AWGto 1 AWG
24×42″ W Intermediate sizes/Medium lengths 2 AWG to 350 MCM
24×42″ W Large sizes/Short lenghts 2 AWG to 350 MCM
24×48″ W Largest size – Approximately 750 to 1000′ 1/0 AWG & larger
Size-Strands Construction Bare
OD
Inches
Bare
OD
mm
mm2
Circular Mill
Area
Nom.
Lb/mft
Bare
14-7 7/.0242 0.073 1.8 2.1 13
12-7 7/.0305 0.092 2.3 3.3 20
10-7 7/.0385 0.116 2.9 5.3 33
10-19 19/.0234 0.117 3.0 5.3 33
8-19 19/.0295 0.146 3.7 8.4 51
6-19 19/.0372 0.184 4.7 13.3 82
4-19 19/.0469 0.235 6.0 21.2 129
3-19 19/.0526 0.263 6.7 26.6 163
2-37 37/.0424 0.297 7.5 33.7 207
1/0-37 37/.0534 0.374 9.5 53.5 326
1/0-61 61/.0416 0.375 9.5 53.5 329
50mm2-247 19×13/24ga 0.396 10.1 50.6 318
1/0-133 19×7/.0282 0.415 10.5 53.6 336
1/0-988 19×52/30ga 0.420 10.7 50.1 332
2/0-133 19×7/.0316 0.474 12.0 67.3 419
3/0-133 19×7/.0355 0.528 13.4 84.9 539
4/0-37 37/.0756 0.529 13.4 107.2 653
95mm2-741 19×39/26ga 0.561 14.2 94.9 581
4/0-133 19×7/.0399 0.590 15.0 107.3 680
4/0-259 37×7/.0286 0.591 15.0 107.3 673
4/0-2107 7x7x43/30awg 0.623 15.8 106.8 680
250-259 37×7/.0311 0.640 16.3 126.9 815
300-259 37×7/.034 0.698 17.7 152.6 968
150mm-740 37×20/24ga 0.703 17.9 151.5 959
350-427 61×7/.0286 0.757 19.2 177.0 1,112
350-259 37×7/.0368 0.773 19.6 177.7 1,110
400-259 37×7/.0393 0.825 21.0 202.7 1,265
450-427 61×7/.0325 0.865 22.0 228.5 1,462
250mm2-1554 37/42/.0177 0.905 23.0 246.7 1,504
500-427 61×7/.0342 0.923 23.4 253.1 1,613
300mm2-1525 61×25/.0197 0.999 25.4 299.9 1,883
600-427 61×7/.0375 0.999 25.4 304.3 1,910
650-703 37×19/.0304 1.050 26.7 329.2 2,085
400mm2-1961 37×53/24ga 1.110 28.2 401.4 2,478
750-703 37×19/0327 1.120 28.4 380.9 2,412
800-427 61×7/.0433 1.169 29.7 405.7 2,544
500mm2-2442 37×66/24ga 1.270 32.3 499.9 3,076
1000-703 37×19/0377 1.320 33.5 506.3 3,206