Cable route survey

1. Detailed route mapping using Total Station, GPS, and GIS tools.
2. Identification of utilities, obstructions, and optimal trench paths.
3. Preparation of route alignment sheets and technical drawings.
4. Ensures efficient planning, reduces rework, and accelerates execution timelines.

Underground electrical Cable Laying (Up to 400kV)

1. Expertise in laying XLPE underground power cables 11kV, 33kV, 66kV, 132kV, 220kV, and 400kV systems.
2. Use of mechanical laying equipment, cable rollers, winches, and drum jacks.
3. Adherence to standard cable laying practices such as trefoil formation, correct bending radius, and sand/cable tiles placement.
4. Specialized laying through ducts, trenches, RCC pipes, HDD (Horizontal Directional Drilling), or cable troughs depending on terrain.

Jointing and Termination

1. Skilled technicians for straight-through joints and outdoor/indoor terminations.
2. Use of heat-shrink or cold-shrink joint kits (as per OEM standards).
3. Execution under clean, controlled conditions for high-voltage reliability.
4. Ensures insulation integrity and system longevity.

Testing and Commissioning

Pre- and post-installation testing including:

1. High Voltage DC/AC Testing
2. VLF (Very Low Frequency) Testing
3. Insulation Resistance Testing
4. Tan Delta Measurements
5. Partial Discharge Testing

Ensures the system is free from faults before energization and safe for operation.

Earthing Systems

Design and installation of earthing systems including:

1. Copper/GI earth pits
2. Earth mats and risers
3. Cable sheath bonding and grounding

Compliance with IS/IEC standards to ensure personnel and equipment safety.

Fault location & repair

1. Advanced equipment for fault identification, pinpointing, and restoration.
2. Use of Time Domain Reflectometers (TDR), surge generators, and thumpers.
3. Rapid response for minimal downtime.