InSky OPGW C Optical Ground Wire Central loose tube (C)

An excellent choice when low weight and a small diameter are more important than rated breaking strength (RBS) and short circuit current resistance. Often used to replace existing conventional 3/8 inch HS/EHS groundwire.


Optical fiber


Stainless steel tube filled with water-blocking gel


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


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

OPGW marking: unique and the only one in the industry to know the exact footage and identify the design type

Up to 96 fibers

Aluminum-clad steel wires are corrosion-resistant

Optical ground wire (OPGW) shields high-voltage conductors from lightning strikes

Aluminum alloy wires provide conductivity for fault current

Maximum rated design tension (MRDT) 3372...28101 lb (15...125 kN)
Crush 571 lb/in (1 kN/cm)
Rated breaking strength (RBS) (without SSLTs), lb 5620...47210
Fiber count, up to 96
Cable diameter, in 0.315...0.709
Cable weight, lb/ft 0.134...0.827
Elasticity modulus (final), ksi 10153...23206
Short circuit capacity (initial temp 77°F), kA²•s 5...300
Short circuit current for 1s, kA 2...20
Operating temperature -58°F ... +185°F
* -76°F ... +185°F upon request
Installation temperature -22°F ... +122°F
Transportation and storage temperature -58°F ... +185°F
Minimum bending radius 20x cable diameter
Design life 50years

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