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Technical standards You are here: Home > Main business > Technical standards

Aluminium-coated steel stranded wire TB/T2938-1998/Aluminum stranded wire with aluminium-coated steel core TB/T2937-1998...

 

Aluminium-coated steel stranded wire TB/T2938-1998

Model LBGJ70(19) LBGJ90(19) LBGJ50(7) LBGJ70(7) LBGJ90(7)
Number of single wires/Diameter(mm) 19/2.05 19/2.41 7/2.89 7/3.45 7/3.97
OD(mm) 10.25 12.05 8.67 10.35 11.91
Calculated breaking force(KN) 75.62 104.72 55.38 77.17 94.37
Modulus of elasticity(mpa) 154519 153519 154218 153987 153527
Linear expansion coefficient(/℃) 12.64×10-6 12.64×10-6 12.64×10-6 12.64×10-6 12.64×10-6
DC resistance at 20 ºC(Ω/km) 1.393 1.006 1.893 1.326 1.003
Current-carrying capacity(A) 150 180 120 155 178
Allowable upper current-carrying capacity limit within 20 minutes(A) 159 191 127 159 189
Operating temperature(℃) 100 100 100 100 100
Weight per kilometer(kg/km) 419.06 579.16 305.6 435.54 576.73

 

Aluminum stranded wire with aluminium-coated steel core
TB/T2937-1998

Model LBGLJ
70/10
(6/1)
LBGLJ
95/15
(28/3)
LBGLJ
120/20
(28/3)
LBGLJ
120/35
(8/7)
LBGLJ
150/8
(18/1)
LBGLJ
150/20
(26/3)
LBGLJ
185/10
(18/1)
LBGLJ
185/25
(24/7)
LBGLJ
210/25
(24/7)
LBGLJ
240/30
(24/7)
Number of single wires
/Diameter(mm)
Aluminum 6/3.8 28/2.06 28/2.29 8/4.43 18/3.2 26/2.67 18/3.6 24/3.15 24/3.33 24/3.6
Aluminium-coated steel 1/1.38 3/2.55 3/2.83 7/2.46 1/3.2 3/2.89 1/3.6 7/2.1 7/2.22 7/2.41
OD(mm) 11.4 13.73 15.26 16.24 16 16.90 18 18.9 19.98 21.6
Calculated breaking force(KN) 22.92 33.25 40.59 57.11 31.99 46.07 39.20 56.81 63.09 73.28
Modulus of elasticity(mpa) 71400 71200 71200 77400 63600 69300 63600 69000 69000 69000
Linear expansion coefficient(/℃) 20×10-6 20×10-6 20×10-6 18.9×10-6 21.7×10-6 20.4×10-6 21.7×10-6 20.4×10-6 20.4×10-6 20.4×10-6
DC resistance at 20 ºC(Ω/km) 0.3991 0.2942 0.2382 0.2143 0.1955 0.1904 0.1544 0.1453 0.1327 0.1136
Current-carrying capacity(Amp) 265 375 418 438 456 473 504 545 578 630
Allowable upper current-carrying capacity limit within 20 minutes(Amp) 286 405 451 473 492 510 544 588 624 680
Operating temperature(℃) 80 80 80 80 80 80 80 80 80 80
Weight per kilometer(kg/km) 261.3 360.38 445.52 559.77 452.1 534.68 571.7 678.1 757.8 885.6
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