OPGW Cable With 24 Single Mode Optical Fibers

■  OPGW 24 Core Cable – Product Overview

This OPGW Cable With 24 Single Mode Optical Fibers is designed especially for the purpose of fulfilling the requirements of the electrical network, mechanical structure, quality, and cost. With proper adjustments to the cable's diameter, weight, mechanical strength, and ability to withstand short circuit conditions, we guarantee the cable's reliability and efficiency in overhead power transmission systems.

Cable Structure

Component	Description
1. Optical Core	- Contains 24 optical fibers for high-speed data transmission. - Fibers comply with ITU-T G.652 single-mode standard. - Operating wavelengths: 1310 nm / 1550 nm with typical attenuation of 0.35 dB/km and 0.25 dB/km respectively.
2. PBT Tube	- Encases the optical fibers, allowing movement under tension and temperature variations. - Filled with hydrogen-absorbing gel to prevent fiber degradation caused by hydrogen ingress. - Offers high thermal stability and mechanical protection.
3. Glass fiber and aramid cover	- Functions as a protective and traction layer. - Provides reinforcement and prevents optical core displacement inside the aluminum tube.
4. Aluminum Tube Sheath	- Provides:   • Short-circuit protection   • Corrosion resistance   • Sealing of the optical core   • High resistance to crushing
5. Aluminum-Coated Steel Wires (ACS)	- Ensure:   • Mechanical load support   • Corrosion resistance   • Short-circuit current capacity

 Mechanical & Physical Characteristics

Parameter	Specification
Number of Fibers	24 single-mode fibers
Fiber Type	ITU-T G.652
Attenuation (Typical)	0.35 dB/km @ 1310nm, 0.25 dB/km @ 1550nm
Aluminum Tube Diameter	≥ 7.4 mm
1st Layer Reinforcement	10 ACS Wires, 27% IACS, Ø 3.17 mm
Lay Direction	1st layer: S (left-hand lay)
Cable Diameter	13.7 mm (min) – 15 mm (max)
Cable Weight	≤ 563 kg/km
Rated Tensile Strength (RTS)	70 kN
Maximum Working Tension	24.4 kN
Modulus of Elasticity	150.1 kN/mm²
Cross-Sectional Area	78.9 mm²
Thermal Expansion Coefficient	14.6 × 10⁻⁶ /°C
Electrical resistance (20°C)	0.49 Ω/km
Initial short circuit temperature	35°C
Service life	20 years
Short circuit rating	87.0  kA⊃2;·s
Short circuit current (0.3 s)	17.0 kA
Atmospheric discharge classification	Class 1

Key Features 

• There is almost no loss of mechanical function in an incessant corrosion and harsh environment. 

• The capacity of short-circuit current is very high. 

• Protection of the fiber and no or minimal signal degradation in long-run. 

• Designed to be the most robust and suitable for aerial installation setting in the electric utility environments.

OPGW Fiber Optic Cable Manufacturer's Test Report

• The Offeror shall submit with the bid a laboratory test report of the optical fiber used by the manufacturer in the manufacture of the cables being quoted; in order to corroborate the compliance of the optical fiber with respect to the OPGW cable.

• The report must be in English or Spanish language.

• The report shall contain the tests of the parameters specified in the standards that the OPGW cable must comply with, with the result of the measurements and tests established therein, in accordance with the standardized test procedures.

• The test result, the ITU reference of the test procedure used and the instruments or test equipment used shall be indicated in the report, which shall demonstrate their metrological traceability to the International Bureau of Weights and Measures (BIPM).

• The CUSTOMER shall use the aforementioned report to verify compliance with the parameters to be met by this fiber optic cable.

• The values obtained from the report shall be used to determine, based on the parameters presented, the quality of the fiber optic cable that the CUSTOMER intends to acquire with this bid.

Central Stainless Steel Tube -OPGW Core Cable

This OPGW (OPGW Typical Designs of Central Stainless Steel Tube) design employs a central stainless steel tube through which the optical fibers run. This tube is then surrounded by either single or double layers of aluminum-clad steel (ACS) only or by a combination of ACS and aluminum alloy wires. This kind of system is meant for power communication as well as relay protection and automatic transmission on high-voltage lines (66kV-500kV) amending the lightweight construction and having the ability to manipulate the towers' additional load, thus making it more suitable for replacing existing ground wires.

Stranded Stainless Steel Tube -OPGW Core Cable

This model (OPGW Typical Designs of Stranded Stainless Steel Tube) utilizes a stranded stainless steel tube with multiple optical fiber units, which are either wrapped in double or triple layers of ACS or a combination of ACS and aluminum alloy wires. By providing a stronger and higher-capacity design for the cables, it will be more beneficial for new overhead high-voltage lines (66kV-500kV), bringing balanced mechanical and electrical performance.

Central Al-covered Stainless Steel Tube -OPGW Core Cable

(OPGW Typical Designs of Central Al-covered Stainless Steel Tube) With a central tube made of stainless steel and covered with aluminum, the OPGW is held by ACS or mixed wires. Aluminum cladding increases fault current and lightning resistance, thus making it fit for high-voltage lines (110kV+) with small diameters and high fault current requirements being typical for the areas by the sea or for chemically contaminated areas. 

Aluminum Tube -OPGW Core Cable

This OPGW (OPGW Typical Designs of Aluminum Tube) employs a central aluminum tube to realize optical fibers, that is surrounded by ACS or mixed wires. An aluminum tube is selected to provide light-weight and high electric conductivity, designed for aerial high-voltage lines (110kV+) to offer secure communication and grounding. The tube also has superior corrosion resistance characteristics. 

Lightning-Resistant Central Stainless Steel Tube -OPGW Core Cable

The design (OPGW with Compressed Wires Typical Designs of Lightning Resistant Central Stainless Steel Tube) is based on a central stainless steel tube, to which compressed ACS or mixed wires are welded. The result is better lightning resistance as well as higher fault current capacity. An application area is a high-voltage power line (110kV+) located in regions susceptible to lightning to offer both durability and protection against especially bad weather conditions. 

OPPC (Optical Phase Conductor) -OPGW Core Cable

(OPGW Typical Designs of OPPC) In contrast to the manner of combining communication and power transmission in traditional OPGW, OPPC does it differently. It achieves this by comprising an optical fiber inside a phase conductor in the presence of ACS or aluminum alloy wires, beneficial for high-voltage lines (110kV+) as it helps in reducing the number of infrastructures.

 

Feature	Central Stainless Steel Tube	Stranded Stainless Steel Tube	Central Al-covered Stainless Steel Tube
Fiber Type	Single-mode/Multimode	Single-mode/Multimode	Single-mode/Multimode
Structure	Central Stainless Steel Tube	Stranded Stainless Steel Tube	Central Al-covered Stainless Steel Tube
Outer Layers	ACS or ACS+AA Wires	Double/Triple ACS or ACS+AA Wires	ACS or ACS+AA Wires
Voltage Range	66kV-500kV	66kV-500kV	110kV+
Application	Aerial, replace old ground wires	New overhead power lines	Aerial, high fault current areas
Key Advantage	Lightweight, low tower load	High tensile strength	Enhanced fault current/ lightning resistance
Feature	Aluminum Tube	Lightning-Resistant Central Stainless Steel Tube	OPPC
Fiber Type	Single-mode/Multimode	Single-mode/Multimode	Single-mode/Multimode
Structure	Central Aluminum Tube	Central Stainless Steel Tube with Compressed Wires	Stainless Steel Tube in Phase Conductor
Outer Layers	ACS or ACS+AA Wires	Compressed ACS or ACS+AA Wires	ACS or AA Wires
Voltage Range	110kV+	110kV+	110kV+
Application	Aerial, high conductivity	Aerial, lightning-prone areas	Phase conductor + communication
Key Advantage	Lightweight, corrosion-resistant	Superior lightning protection	Dual power/ communication

  

OPGW (Optical Ground Wire) is a dual-purpose cable intended to be mounted on high-voltage overhead power lines. Its roles can be divided into two: 

Grounding: Defends power lines against lightning and offers an accessible way for fault currents to reach the ground. 

Telecommunications: Houses optical fibers for rapid data transfer. 

Ultimately, this combination of features contributes to power grid efficiency and safety, as well as communications capacity, thereby making OPGW an integral element of updated power infrastructures.

 

HANGZHOU ZION COMMUNICATION CO., LTD is a renowned provider of high-performance OPGW cables and related components. Our clients, including utilities, ISPs, and system integrators, rely on our products for time-critical power and communication infrastructure in more than 80 countries. 

Zion Communication's Fiber Optic Expertise Covers: 

➡ OPGW 

➡ ADSS Cables 

➡ FTTH Drop Cables 

➡ Fiber Optic Patch Cords 

➡ Distribution Boxes and Closures  

Our company is dedicated to "Top Quality and Outstanding Service at Reasonable Rates," driven by skills in R&D, flexible customization, and 24/7 global technical support.

 

Usually put at the top of transmission towers, OPGW serves as a shield wire: 

• Lightning strikes encounter first wire and get transferred there. 

• Provides a low-resistance grounding path for fault current dissipation. 

• Increase system reliability as well as operator safety because of reduced outages and electrical hazards.

 

While in-line with single-mode fibers, OPGW permits: 

Transmission of any data in real-time along a great distance with close to zero distortion. 

Support for SCADA systems, teleprotection, and remote grid monitoring. 

Communication in a secured manner which is shielded against electromagnetic interference or extreme weather.

 

• Dual Functionality 

  Integrates grounding and fibre optic communication into the more cost-effective and space-efficient cable. 

• Installation Efficiency 

  Fits directly onto existing towers with minimal structural changes. Live-line installation may also be done. 

• Highly durable and safe 

  Untroubled with electric, lightning-insertion, and exterior physical destruction. 

  The temperature stability range is from -40C to 85C, compatible with extreme environment. 

• Smart Grid Ready 

  Enables the transport of data and information in advanced grids, including smart systems. 

• Revenue generating prospects 

  Allowing dark fibers space gives utility owners incentives for making additional sum of money.

 

SCADA Systems: Manages all operation in substations via change and auto commands. 

Grid Monitoring: Ensures temperature sensing and detecting faults along transmission lines. 

Utility Communication Networks: Creates the path of voice, video data transfer in and between utility facilities. 

Telecom Backbone: Leased fibers can act as area or intercity fiber backbones.

 

OPGW installation is usually done for the new line construction, and for retrofitting OPGW onto live wires, live-line methods are used. Cable lengths must correlate with the spans of the towers, as junctions mid-span are not practical. 

Fiber jointing and transitioning to current fiber cables are performed at the towers using splice boxes.

• Your Honest Supplier & Long-term Partner 

• The company operates as R&D and testing facilities all in-house. 

• Sophisticated manufacturing facilities with checks on ISO-compliant QC. 

• Provision of expert help for one-of-a-kind OPGW designs and necessary accessories. 

• A timely world-class delivery service with complete documentation. 

• Telecom and utility compliance brought about by multiple certificates. 

Just reach out to us to get the prices, data sheets, and technical consultations at info@zion-communication.com

 

Our Mission & Vision 

Mission: Provide cost and performance competitive low-voltage and signal transmission solutions, targeted at customers’ satisfaction. 

Vision: To become a pioneer in cables, wires, fiber, and copper system providing through innovation, quality, and service. 

In the smart grids and data-oriented energy systems era, OPGW is much more than just optional; it's a must. It comprises: 

✔ Protection against lightning 

✔ Communication safety 

✔ Efficiency in operations 

✔ Cost-savings on the long run

 

ZION COMMUNICATION as your OPGW partner could just be what you need to invest in because you are putting money on reliability, scalability, and global presence.