48 Core OPGW Cable 70mm² Cross-Section Central Stainless Steel Tube
48 core OPGW cable with stainless steel
,70mm² OPGW fiber optic cable
,OPGW cable with central tube
48 Core OPGW Fiber Optic Cable (70mm² Cross-Section)
Product Overview
The 48 Core OPGW (Optical Ground Wire) is a dual-function cable designed for the most demanding power transmission infrastructures. It replaces traditional shield wires on high-voltage lines, providing both reliable grounding for the power grid and a high-capacity fiber optic backbone for telecommunications.
This specific model features a Central Stainless Steel Tube design. The 48 fibers are housed within a hermetically sealed, water-resistant stainless steel tube, which is then armored by layers of Aluminum Clad Steel (ACS) and Aluminum Alloy (AA) wires. This construction offers superior thermal stability and mechanical protection, even during high-fault current events.
Key Technical Features
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Central Stainless Steel Tube Technology: Provides the highest level of protection for optical fibers against hydrogen aging, moisture, and extreme temperatures.
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Dual-Function Utility: Acts as a lightning protector and grounding wire while enabling high-speed data transmission for smart grid monitoring.
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70mm² Optimized Cross-Section: Engineered for an ideal balance between electrical conductivity (fault current capacity) and mechanical tensile strength.
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Corrosion Resistance: The outer layers of Aluminum Clad Steel (ACS) wires ensure long-term durability in high-salinity or industrial environments.
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48-Core High Density: Supports massive data backhaul for 5G utility networks, substation automation, and long-haul telecommunications.
Technical Specifications (OPGW-48B1-70)
| Item | Specification Details |
| Fiber Count | 48 Cores |
| Fiber Type | G.652.D (Singlemode) |
| Structure | Central Stainless Steel Tube (CSST) |
| Cross-Section Area | Approx. 70 mm² |
| Overall Diameter | Approx. 11.5 mm |
| Rated Tensile Strength (RTS) | 45 kN - 65 kN (Customizable) |
| Fault Current Capacity (1s) | 5.5 kA²s - 7.5 kA²s |
| Modulus of Elasticity | 100 GPa - 120 GPa |
| Operating Temp | -40°C to +80°C |
Targeted Application Scenarios
The 48-Core 70mm² OPGW is a staple for critical infrastructure:
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High-Voltage Transmission Lines: Standard deployment for 110kV, 220kV, and 500kV power grids.
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Smart Grid Modernization: Enabling real-time monitoring, protection, and control of electrical networks.
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Long-Span Crossings: Ideal for aerial spans between transmission towers over rugged terrain or rivers.
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Renewable Energy Integration: Connecting wind farms and solar plants to the national power grid backbone.
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