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336.4 ACSR Merlin 18/1 Conductor ASTM B 231

The bare aluminum and ACSR conductors described here are suitable for installation in all practical spans on transmission towers, wood poles and other structures. Installations range from long distance EHV transmission lines to sub-service spans at distribution or utilization voltages on private premises.
  • ACSR
  • Grand Cable

Description:
 

The use of Aluminium as a material for electrical conductors has greatly developed mainly due to its electrical properties. However, Aluminium conductors for most of transmission lines which spans are quite long, it is necessary an additional mechanical support. Commonly it is used galvanized steel wires for cores of ACSR.

Application:

Widely used as bare cable for overhead transmission lines and also as primary and secondary bare cable for distribution lines.

Construction:

ACSR is concentrically stranded conductor with one or more layers of Aluminium wire hard-drawn 1350-H19 on the galvanized steel wire core. The core may be single wire or stranded depending on the size. Steel wire is available in Class A or B galvanization as corrosion protection.

ACSR is according to electrical and mechanical strength requirements of transmission or distribution lines, can provides an appropriate design combining the quantity of Aluminium and galvanized steel wires.

Characteristics:

Code   Name Size Stranding Section Overall Diameter Conductor Weight Rated Strength
cmils/AWG Aluminum Steel mm2 mm kg/km ACSR/GA2
No. x Φmm kN
PEACOCK 605,000 24/4.03 7/2.69 345.91 24.21 1158.98 96.08
EAGLE 556,500 30/3.46 7/3.46 347.89 24.21 1295.74 123.65
DOVE 556,500 26/3.72 7/2.89 328.51 23.55 1138.74 100.52
PARAKEET 556,500 24/3.87 7/2.58 318.91 23.22 1065.67 88.07
OSPREY 556,500 18/4.47 1/4.47 298.16 22.33 897.81 60.94
HEN 477,000 30/3.20 7/3.20 297.57 22.43 1110.77 105.86
HAWK 477,000 26/3.44 7/2.67 280.84 21.79 975.19 86.74
FLICKER 477,000 24/3.58 7/2.39 272.98 21.49 913.58 76.51
PELICAN 477,000 18/4.14 1/4.14 255.77 20.68 769.83 52.49
LARK 397,500 30/2.92 7/2.92 247.78 20.47 925.34 90.29
IBIS 397,500 26/3.14 7/2.44 234.07 19.89 812.54 72.50
BRANT 397,500 24/3.27 7/2.18 227.69 19.61 761.05 64.94
CHICKADEE 397,500 18/3.77 1/3.77 212.09 18.87 641.40 44.21
ORIOLE 336,400 30/2.69 7/2.69 210.28 18.82 783.37 76.95
LINNET 336,400 26/2.89 7/2.25 198.38 18.29 687.53 62.72
MERLIN 336,400 18/3.47 1/3.47 179.68 17.37 542.88 38.61
OSTRICH 300,000 26/2.73 7/2.12 176.90 17.27 613.42 56.49
PARTRIDGE 266,800 26/2.57 7/2.00 156.86 16.31 546.01 50.26
WAXWING 266,800 18/3.09 1/3.09 142.48 15.47 430.23 30.60
PENGUIN 0000 6/4.77 1/4.77 125.09 14.30 432.76 37.14
COCHIN 211,300 12/3.37 7/3.37 169.48 16.87 783.96 92.07

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