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Knowledge of Overhead Power Ground Wire (OPGW) Fiber Cable

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Knowledge of Overhead Power Ground Wire (OPGW) Fiber Cable

November 27
15:18 2020

OPGW is a dual functioning cable performing the duties of a ground wire and also providing a patch for the transmission of voice, video or data signals. The fibers are protected from environmental conditions (lightning, short circuit, loading) to ensure reliability and longevity. The cable is designed to be installed on transmission and distribution lines to carry voice, data and video communications, especially in lighting waveform monitoring system, an observation system for overhead test line, maintenance data information system, power line protection system, power line operation system, and unmanned substation monitoring.

GL focuses on FO cable development and production for 16 years and OPGW is one of our main products, GL products are exported to more than 160 countries. There are 4 typical decigns of OPGW fiber optic cables offered from GL.

OPGW Typical Designs of Central Stainless Steel Loose Tube, The central stainless steel tube is surrounded by single or double layers of aluminum clad steel wires (ACS) or mix ACS wires and aluminum alloy wires. are the most widely used cables, their design is fully adapted to the most common electric line needs.

OPGW Typical Designs of Stranded Stainless Steel Tube, The Stranded Optical Ground Wire (OPGW) is stranded by double or three layers of aluminum clad steel wires (ACS) or mix ACS wires and aluminum alloy wires, Its design is fully adapted to the most common electric line needs.

AL-covered Stainless Steel Tube OPGW, The central AL-covered steel tube is surrounded by single or double layers of aluminum clad steel wires (ACS) or mix ACS wires and aluminum alloy wires. AL-covered Stainless Steel Tube design increases the cross section of AL, to reach a better fault current and lightning resistance performance. Apply to the transmission line which requires small diameter and large fault current.

PBT Aluminum Tube OPGW, The PBT Loose Tube Optical Ground Wire (OPGW) is surrounded by single or double layers of aluminum clad steel wires (ACS) or mix ACS wires and aluminum alloy wires. Good anti-corrosion performance. Material and structure are uniform, good resistance to vibration fatigue.

Besides, OPGW has some common Mechanical Properties:

Minimum Bending Radius:
Under installation: 20×OD
During operation: 10×OD for unarmoured cables; 20×OD for armoured cables.
Temperature Range:
Operating Temperature Range: -40℃(-40℉) to +70℃(+158℉)
Storage Temperature Range: -50℃(-58℉) to +70℃(+158℉)

Maximum Compressive Load: 4000N for unarmoured cables; 6000N for armoured cables
Repeated Impact: 4.4 N.m (J)
Twist (Torsion): 180×10 times, 125×OD
Cyclic Flexing: 25 cycles for armoured cables.;
100 cycles for unarmoured cables.
Crush Resistance: 220N/cm(125lb/in)

Media Contact
Company Name: Guang Lian
Contact Person: Media Relations
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Phone: +86 7318 9722704
Country: China
Website: https://www.gl-fiber.com/