The SH2-OPGW series Double Sheave Block is a specialized precision tool designed for exchanging overhead grounding wires with OPGW (Optical Budget Ground Wire) in live-line or de-energized operations. Engineered by Suntech Power, this lightweight block features a dual-sheave configuration that ensures balanced traction and minimizes the risk of fiber optic damage during stringing. Weighing as little as 2.2kg, it is optimized for high-altitude efficiency and long-distance line replacement projects.

Our line exchanging blocks are built to ISO 9001:2008 standards, ensuring reliability in critical power utility environments:

• Rated Load: 2 KN (Safe working load for fiber optic cables)
• Sheave Material: High-quality MC Nylon (To prevent abrasion on OPGW)
• Warranty: 1 Year

• Dual-Sheave Balance: The double-wheel design provides stable support for the "old-wire-pulls-new-wire" method, preventing twisting during the OPGW exchange.
• Ultra-Lightweight Design: At only 2.2kg, it significantly reduces the labor intensity for linemen working on overhead lattice towers.
• Fiber-Safe Sheaves: Typically equipped with nylon sheaves that provide a smooth, low-friction path, protecting the delicate internal optical fibers from mechanical stress.
• Compact Form Factor: The streamlined outing size allows for easy transport and rapid deployment in restricted tower spaces.

• OPGW Stringing & Exchanging: Primary use in replacing aging overhead ground wires with modern OPGW.
• Live-Line Maintenance: Suitable for power utility upgrades where minimizing downtime is critical.
• Transmission Line Upgrades: Essential for telecommunication and power grid integration projects.

No. This block has a rated load of 2KN and is specifically designed for lightweight OPGW or grounding wires. For heavy conductors, please refer to our heavy-duty single sheave stringing blocks.

The nylon sheave is non-conductive and softer than steel, which ensures that the OPGW's aluminum-clad steel wires and internal fibers are not crushed or scratched during the exchange process.

We have a steady supply ability of 1000 PCS per month to support large-scale national grid projects.