Four Bundle Conductor Inspection Trolley for EHV Overhead Line Repair with Aerospace-grade Aluminum Alloy Frame

Four Bundle Conductor Inspection Trolley SFS3 for EHV Overhead Line Repair

On quadruple-bundle extra high voltage lines the trolley has to stay planted no matter how the bundle shifts, and that is exactly what this four bundle conductor trolley is built to do. It has been developed alongside EHV repair and maintenance campaigns on 750kV and 1000kV corridors, where crews need a platform that stays level while they work both hands free on spacers, dampers, and hardware.

Quad-Bundle Stability

• Four-wheel carriage tracks all sub-conductors for a broad, secure stance
• Adjustable conductor spacing from 400mm to 1000mm covers most quad layouts
• Counterbalanced frame keeps the seat level through sag and bundle twist

Safety for Live EHV Work

• Independent braking on each wheel plus an emergency stop
• Non-conductive wheel assemblies with insulation options for live line duties
• Twin fall-arrest harness points and a slip-resistant standing area

Main Repair and Inspection Tasks

• Visual and thermal survey of quad conductors
• Spacer-damper fitting, adjustment, and replacement
• Vibration damper and hardware servicing
• Ice and snow accretion checks on high spans

Technical Data

Tested Before It Ships

Frames are welded, aligned, and individually load-tested in our own works, and each production batch keeps a traceable record. Our quality system follows ISO 9001 with CE compliance, and pre-shipment inspection by SGS, BV, or your nominated third party is readily arranged.

Packing and Delivery

Units ship in plywood cases with moisture-proof lining for long sea routes. Standard models are ready in 3-5 working days, while custom bundle spacing, insulation grades, and tool-mount layouts are quoted to your drawing.

Match a Trolley to Your Line

Tell us your conductor diameter, bundle spacing, and voltage class and our engineers will specify the correct configuration. Contact us for a datasheet and quotation.