FAQ

FAQ

Pre-plan recovery: include backup ropes, tether options, a grab/retrieval kit, and a trained retrieval crew. Define abort procedures, safe stand-down zones and a communications plan. Conduct practice drills during pre-job safety briefings.
Use controlled braking calibrated to the conductor type and payout speed to prevent slack and sudden surges. Combine braking with CTCS and feed sheaves to guide conductor. Test brake settings during setup and monitor during continuous payout.
Standard warranty covers manufacturing defects; extended warranty options available. We provide worldwide spare parts shipments, technical support, and reconditioning services. On-site service and preventive maintenance contracts are available to minimize downtime.
Yes — helicopters lift heavy pilot lines and equipment for very long spans or large-scale projects where heavier payloads and wind tolerance are needed. Drones are best for light pilot-line work and in locations where helicopter use is not viable or too expensive. Choose per payload and regulatory constraints.
Choose tools offering accurate mapping, conduit condition surveys and bend-count calculators; integrate with GIS for project planning. Use vendor pulling calculators that account for duct type, bends and lubricant to estimate tension and staging needs.
Common failures: worn sheaves/bearings, hydraulic leaks, rope slippage, and bad tension control. Prevent with routine inspections, scheduled oil/ filter changes, correct sheave sizing, and calibrating dynamometers. Keep spares for critical wear parts.
HTLS conductors have higher operating temps; design sag tables for operating temperature extremes and select tensioners that handle higher tensions. Use expansion allowances in dead-ends and fit vibration dampers where needed. Follow conductor supplier installation guidance.
Synthetic rope offers lighter weight, easier handling and lower stored energy on failure; wire rope is durable but heavier. Choose per environment, manufacturer recommendations and bullwheel design—ensure the rope type matches the machine’s groove and grip system.
Verify equipment load ratings, inspect sheaves/blocks, confirm reel and payout brake operation, test radios/communications, confirm grounding/earthing plan, and do a job-hazard analysis (JHA) with crews before work. Document results and ensure PPE and rescue plans are in place.
Use simultaneous bundle stringing methods, matched-length subconductors, and matched tension across subconductors to avoid differential sag. Multi-roller fairleads, synchronized payout and controlled tensioning systems are required for consistent results. Follow bundle manufacturer instructions.
Drones near powerlines face RF interference, wind gusts, and collision risk. Mitigate with certified pilots, safety corridors, tethering/backup, and maintain safe distances unless specifically operating as a pilot-line mission with approved procedures and safeguards. Have an emergency retrieval plan.
Plan transport for heavy equipment (road/sea permits), staging areas, local labor, spare parts, and on-site commissioning. Factor in weather windows, helicopter or drone permits, and contingency for component delays. Use modular equipment that’s easy to transport and assemble in the field.
HTLS/ACCC, ADSS, and fiber-optic OPGW require particular groove profiles, larger diameters, and non-damaging roller surfaces to prevent strand deformation or fiber crush. Use manufacturer-recommended sheaves and multi-roller fairleads for special conductors.
Drone pilots must hold required local certifications (e.g., FAA Part 107 in US) and receive utility-specific training on operations near energized lines, rope-handling procedures, emergency recovery and crew coordination. Ground crews must train on drone safety zones and rope secures.
Use laser range tools, precision sag-meters, or differential GPS and measure under set conductor tensions and temperatures. Apply conductor-specific sag tables and measure at reference temperatures. For highest accuracy, perform final sag checks after tension set and temperature stabilization.
Use dedicated OPGW grips, controlled tensioning, and intermediate support where needed. Avoid exceeding manufacturer tensile and bend-radius limits, and use fiber-compatible rollers and sheaves; document fiber installation test results. Consider staged pulls for very long spans.
Use correct sheave sizes, CTCS (constant tension), proper payout-stand braking, smooth fairleads, and avoid abrupt accelerations. Ensure sheaves are clean and matches groove profile; use conductor-protecting grips and follow the conductor manufacturer’s installation guidelines.
Request CE and ISO certificates, factory test reports (load tests), material certificates, and FAT documentation. For electrical/electronic controls confirm RoHS/EMC compliance if required. We support third-party inspection and will include certificate packages per customer needs.
High altitude, extreme heat, cold or corrosive coastal conditions require specific cooling, materials and seals. Wind and icing impact drone use and helicopter operations. Select units with appropriate material coatings, hydraulic ratings and temperature-tolerant components for reliable performance.
Provide conductor type and datasheet, longest span, typical span lengths, required stringing tension, project altitude/climate, desired remote-control features, and estimated annual usage. Include delivery port and required certifications so we can give an accurate quote.
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