Optical Power Ground Wire (OPGW Cable)

Description of OPGW

The OPGW optical cable integrates optical fibers inside the ground wire of overhead high-voltage transmission lines, creating a secure and efficient communication system along the power network. With its dual role of grounding and data transmission, OPGW ensures both power system protection and reliable communication. The metallic wire structure provides excellent mechanical strength, stability, and long service life. Compared with conventional optical cable installations, OPGW significantly reduces construction time and overall project costs. It is widely used in power transmission projects, substations, and smart grid communication systems.

OPGW Optical Cable Characteristics & Advantages

• Advanced stainless steel tube technology filled with water-blocking compound for maximum fiber protection.

• High tensile strength and compact structure ensure durability in harsh environments.

• Low interference between power grid and communication network even under short-circuit conditions.

• Easy installation—compatible with common ground wire specifications and can directly replace existing ground wires.

• Excellent lightning resistance and stable performance over long spans.

• Cost-effective solution for integrating communication into power transmission infrastructure.

OPGW Cable Description

Application
OPGW is mainly applied in power communication systems together with related accessories. It supports relay protection, automatic monitoring, and signal transmission when installed along high-voltage power lines.

Structure
The Stranded Optical Ground Wire (OPGW) is manufactured with double or triple layers of aluminum-clad steel (ACS) wires, or a mix of ACS and aluminum alloy wires. Its design is optimized to meet the needs of modern overhead power grids, ensuring both electrical grounding and optical communication.

Fiber Options

• G652D, G655C, G657A1

• Multimode: 50/125, 62.5/125, OM3, OM4

Fiber Count

• Up to 96 cores available

Voltage Range

• Suitable for power lines of 110KV and below

Main Applications

• Widely used in newly constructed overhead power lines

• Ideal for large fiber capacity and ultra-high-voltage (UHV) transmission projects

• Provides grounding and lightning protection while carrying short-circuit fault current

Typical Designs

• Central aluminum-covered stainless steel tube OPGW for high strength and reliable protection

OPGW with PBT Aluminum Tube

OPGW Typical Designs of Stranded Stainless Steel Tube

Typical design for Double Layer:

Typical design for Three Layer:

OPGW Typical Designs of Central AL-covered Stainless Steel Tube

Typical Design for Single Layer

Typical Design for Double Layer

OPGW Typical Designs of Central Stainless Steel Loose Tube

Typical design for Single Layer:

Typical design for Double Layer:

FAQ

1. Are you a trading company or a manufacturer?
We are a professional manufacturer with over 10 years of experience, focusing on the R&D and production of fiber optic cables, drop cables, and patch cords. Our factory is located in Guangzhou, China, and we warmly welcome you to visit us.

2. How is the product quality guaranteed?
Each fiber is strictly tested before delivery to ensure stable performance. After confirming the price, free samples can be provided for quality inspection.

3. Do you accept small orders?
Yes, small orders are welcome. We support new projects and understand that business often starts from small quantities.

4. What is the delivery time?
Normally 3–7 working days, depending on the order quantity. Rest assured, we will arrange shipment as soon as your payment is received.

5. Can you provide OEM service?
Yes, OEM service is available. We can print your logo on products, and are open to your customization ideas.