Aluminium Clad PBT Tube Stranded Type Stainless Steel Opgw Fiber Optic Cable

Product Description

Name: OPWG Fiber Optical Cable 

 

Introduction

This is a smart use of the widespread grid of ground wires for the transmission of data.

For this purpose, for more than 20 years, the TSO (Transmission System Operators) are gradually replacing all the galvanized steel and ACS (Aluminium Clad Steel) ground wires with OPGW (Optical Ground Wire) that, through the insertion of numerous optical fibres, allows a capillary and fast data transmission.

This innovative approach harnesses the extensive grid of ground wires not only for electricity transmission but also for data communication, marking a significant advancement in grid technology. Over the past two decades, Transmission System Operators (TSOs) have been gradually replacing traditional galvanized steel and Aluminium Clad Steel (ACS) ground wires with Optical Ground Wire (OPGW) solutions. Unlike conventional ground wires, OPGW integrates multiple optical fibers, enabling seamless and rapid transmission of data across the grid infrastructure.

Moreover, the deployment of OPGW fosters greater resilience and adaptability within the grid ecosystem. The robust construction of OPGW ensures reliable data transmission even in harsh environmental conditions, such as extreme temperatures, high winds, and corrosive environments. This resilience is essential for maintaining continuous communication and situational awareness, particularly during adverse weather events or unforeseen emergencies.

Engineering

The design of these ground wires is various and not standardized and it contains an optical core in the center, or in the layers, or multiple, etc.
The optical cores can be composed of Inox St or Al or Inox-Al tubes and contain dozens of optical fibres, typically in multiples of 24 units (24, 48, 96, etc.).
De Angeli Prodotti is able to produce OPGW in all its conformations.

Advantages

The advantage of this particular ground wire is in the combination of two features: protection of the overhead power line  from the lightning and the establishment of an extensive infrastructure network for the data transmission.

 

Structure
The Optical Ground Wire (OPGW) cable is a state-of-the-art solution designed to serve dual purposes of grounding and communication for high-voltage transmission lines. An OPGW cable combines the functionalities of a traditional ground wire with the capabilities of fiber optic communication, making it an essential component in modern power grid infrastructure.

 STRUCTU

What Are the Features of OPGW Cable ?

• 1,Excellent corrosion resistant performance.opgw cable
• 2,Applicable to coastal areas and areas with heavy pollution.optical ground wire
• 3,Easy splice fiber of code color opgw fiber cable
• 4,Fiber optic cable (OPGW-2S 1/24D1 (74/52-111/0)
• 5,OPGW Earth Wire must be capable of withstanding the mechanical stresses applied to overhead cables by environmental factors like wind and ice, as well as handling electrical faults on the transmission line without damaging the optical fibers.
• 6,The OPGW cable is constructed with high-tensile strength materials, ensuring it can withstand extreme weather conditions and mechanical stress. This durability ensures the reliability and longevity of the cable, reducing maintenance costs and downtime.
• 7,The OPGW cable serves as both a grounding wire and a communication channel. This dual functionality not only saves on installation costs but also maximizes the use of infrastructure space. By combining these two essential functions, the OPGW cable becomes a cost-effective solution for power companies.

What are the Technical Specifications of OPGW Ground Wire?

Short circuit current power at t=+40C	111KA2c
Electrical resistance to electric current	0.33 OM/KM
Nominal breaking force	74.0 kN
Wire section	125.5 mm2
Cross section of the steel core	51.63 mm2
Aluminum section	73.63 mm2
Wire diameter	15.0 mm
Weight 1 km	545 kg
Modulus of elasticity	96000 MPa
Temperature coefficient of linear expansion	0.0000172 1/deg
Permissible voltage at the highest load and lowest temperature	236.0 MPa
Permissible stress at an average annual temperature	94.4-147.5 MPa
Maximum building length	6000 meters
Quantity of fibers	24 pieces

Code	Model	Fiber core	Weight ofcable(kg/km)	Overall diameter(mm)	Break strength load(KN)	Short Circuit (KA2s)
OPGW75-36	OPGW-36B1-75 [90;32.1]	36G652D	496	11.4	94.5	32.1
OPGW90-36	OPGW-36B1-90 [84.6;50.4]	36G652D	540	12.5	89	50.4
OPGW153-36	OPGW-36B4-153[148.5;123.5]	36G655	648	16.3	148.5	123.5

• 
  How OPGW Facilitates the High-Speed Data Communication? 

  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.

  What are the Key Prospective of Using OPGW?

• 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.

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• Test
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• Application
•  
• OPGW cables (OPGW Earh Wire ) must be capable of withstanding the mechanical stresses applied to overhead cables by environmental factors such as wind and ice.
• OPGW must also be capable of handling electrical faults on the transmission line by providing a path to ground without damaging the sensitive optical fibers inside the cable.
•  

 

Packaging And Drum

OPGW shall be wound around a non-returnable wooden drum or iron-wooden drum. 
Both ends of OPGW shall be securely fastened to drum and sealed with a shrinkable cap.
The required marking shall be printed with a weatherproof material on the outsides of drum according to customer's requirement.

• Catalog