OPGW/Ground Wire

Ground Wire

Protection of power lines from lightning overvoltage, construction of optical communication systems.

1

Central strength member (Aluminum-clad steel wire)

2

Stranded wires (Aluminum-clad steel wires and /or aluminum alloy wires)

3

Stranded wires (Aluminum-clad steel wires and /or aluminum alloy wires)

Aluminum-clad steel wires are corrosion resistant

Mandatory element of 35 kV power lines approaching electrical substations and of all 110 kV power line

Aluminum alloy wires shield the high-voltage conductors from lightning strikes

Rated breaking strength (RBS), kN 30 … 700
Cable diameter, mm 7.0 … 34.0
Cable weight, kg/km 200 … 3000
Cross section, mm² 35 … 600
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Operation temperature -50°С…+85°С
Installation temperature -30°С…+50°С
Transportation and storage temperature -50°С…+70°С
Minimum bending radius 20x cable diameter
Life time 50 years