The installation of a 400kV cable requires a system of interconnected, high-precision equipment. Relying on standard tools is not an option.

• High-Capacity Puller-OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner: A hydraulic, diesel-powered puller-OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner with a capacity of 10 tons or more is essential. The machine must provide a smooth, consistent pulling force and must be capable of a closed hydraulic circuit to prevent any sudden changes in speed or tension.

• Automated Tension Monitoring: A built-in, electronic tensiometer with an automated tension control system is a non-negotiable safety feature. It provides real-time data and can be programmed to automatically stop the pull if the tension exceeds a pre-set limit, protecting the cable from damage.

• Heavy-Duty Cable drum stands: The drums holding 400kV cables are colossal, often weighing tens of tons. Hydraulic drum jacks with sufficient load capacity and a robust spindle bar are required to safely lift and unspool the drum.

• Precision Rollers and Sheaves: The cable must be guided smoothly along the entire route. This requires a full set of heavy-duty conduit rollers, corner sheaves, and manhole sheaves, specifically designed to support the cable's weight and maintain its minimum bending radius.