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250kcmil 37H (B)
Description
Description
Standards
-
ProductASTM B 1; ASTM B 8
Use / Applications
Bare hard copper conductors are ideal for installations on overhead lines near the coast and/or in environments with high pullution due to their high resistance to aggressive environmental factors.
Construction: Bare conductor with concentric wiring according to ASTM B-8 standard, formed by hard copper wires according to ASTM B-1 standard.
Ampacities of bare copper conductors
Current carrying capacity in open air at 40°C ambient temperature and the conductor at 80°C. Source: RIC N°4 Table 4.3.
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Conductor flexibility
Class B
Conductor material
Hard copper
Conductor shape
Circular
Number of conductors
1
Dimensional characteristics
Dimensional characteristics
Conductor cross-section (AWG/KCMIL)
-
Conductor cross-section
250 kcmil
Conductor cross-section
127 mm²
Conductor stranding
B
Number of round wires
37
Nominal diameter of wires
2.09 mm
Outer Diameter
14.6 mm
Approximate weight
1137 kg/km
Conductor diameter
14.6 mm
Electrical characteristics
Electrical characteristics
Max. DC resistance of the conductor at 20°C
0.147 Ohm/km
Perm current rating in air 40°C
494 A
Mechanical characteristics
Mechanical characteristics
Minimum breaking load
5225 kgf
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