Optical Power Ground Wire (OPGW Cable)

OPGW Cable Overview
The Optical Power Ground Wire (OPGW) is a special type of cable that integrates optical fibers within the ground wire of overhead high-voltage transmission lines. By combining the functions of lightning protection, grounding, and optical communication, OPGW provides a reliable and efficient solution for modern power grids. The optical fibers inside the cable enable high-speed data transmission, while the surrounding metal wires ensure excellent mechanical performance and electrical protection. Compared with traditional optical cable installations, OPGW reduces construction time, lowers overall costs, and improves long-term stability.

Key Features & Advantages

• Advanced Protection: Stainless steel tube design filled with water-blocking compounds provides superior protection for optical fibers against moisture and mechanical stress.

• High Mechanical Strength: Compact structure with excellent tensile strength to withstand harsh environments and strong mechanical loads.

• Electrical Performance: Effectively reduces interference between the power grid and communication system during short-circuit conditions.

• Easy Installation: Designed to match conventional ground wire specifications, OPGW can be installed conveniently and directly replace existing ground wires without major modifications.

• Dual Functionality: Offers both grounding protection for the power system and high-capacity optical communication channels, ensuring reliability and cost-effectiveness.

• Wide Applications: Ideal for use in power transmission lines, substations, and smart grid communication networks.

OPGW Cable Overview

Main Functions
OPGW cables are primarily applied in power communication systems, working together with accessories for relay protection, automatic control, and data transmission. They are installed alongside high-voltage power lines, combining optical communication and grounding functions.

Structure
The Stranded Optical Ground Wire (OPGW) is manufactured with two or three layers of aluminum-clad steel wires (ACS), or a mix of ACS and aluminum alloy wires. This design is optimized to meet the common structural and mechanical demands of power transmission lines.

Fiber Specifications

• Optional fiber types: G652D, G655C, G657A1, 50/125, 62.5/125, OM3, OM4

• Fiber count: Up to 96 cores

Electrical & Application Range

• Suitable for power lines with voltage levels of 110KV and below

• Widely applied in new overhead transmission lines

• Capable of carrying a large number of fibers for UHV (Ultra High Voltage) systems

• Provides protection against lightning and safely conducts short-circuit fault current

Typical Design
Central aluminum-covered stainless steel tube structure, ensuring excellent fiber protection, mechanical strength, and long-term reliability.

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 manufacturer?
We are a professional manufacturer with over 10 years of experience in fiber optic cables, drop cables, patch cords, and related products. Our factory is located in Guangzhou, and we warmly welcome your visit.

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

3. Do you accept small orders?
Yes. We support trial and small-volume orders, as we believe long-term business often starts from small projects.

4. What is the delivery time?
Generally 3–7 working days, depending on order quantity. Once payment is confirmed, we arrange production and shipping as quickly as possible.

5. Do you offer OEM services?
Yes. We provide OEM customization and can print your logo on the product. We are open to any design ideas from customers.