HT/LT Cable Route GPR Survey in Hyderabad

Rates and page checked: 23 October 2026

Electric cable route GPR survey in Hyderabad: what gets checked?

Put simply, the survey settles what is already sitting in the path of a new HT feeder or LT distribution cable, ahead of the first trench. An electric cable route GPR survey in Hyderabad walks the proposed alignment with radar and an electromagnetic locator, then answers four questions for the cabling team.

1. Which existing power cables run along or across the route, and roughly how deep?
2. Where do water mains, sewers, storm drains and telecom ducts come close enough to force a shift?
3. Which stretches are so crowded that the alignment should move to the other side of the road?
4. Where will a crossing need a bore instead of an open cut?

Typical work covers 11 kV and 33 kV feeder replacement, LT network conversion from overhead to underground, substation incomers and outgoing circuits, and service cables to large consumers. For the method in general, see the HT/LT cable route GPR survey service; what follows is specific to Hyderabad power cabling.

Where do power cable routes in Hyderabad get difficult?

Several conditions in the city make cable alignments harder to settle than the drawings suggest:

• Granite near the surface. Rock outcrops appear across many parts of the city, and where rock rises close to road level the trench depth a cable specification asks for may not be achievable without breaking it. Knowing where existing cables have been forced shallow by rock matters as much as the rock itself.
• Metro corridors. Along the Hyderabad Metro alignment many services were shifted during construction, so older records for those roads may no longer match the ground.
• Musi river and drain crossings. Feeders crossing the Musi or its nalas tend to bunch onto bridges and culvert approaches, where clearance between cables is already tight.
• Crowded footpaths. On busy commercial roads, LT cables, street-light circuits, water lines and several fibre ducts often share the same narrow strip.

None of these are reasons to avoid a route. They are reasons to scan it closely before the excavator arrives. Wider city context sits on our GPR survey in Hyderabad page.

How is a live HT cable traced underground?

Underground electrical line tracing in Hyderabad starts with the EM locator. A cable carrying load radiates a field the receiver can follow in passive mode, so energised HT and LT circuits usually show up quickly. Where a conductor is accessible at a pillar, joint or end point, a transmitter can put a known signal onto it and the line is followed with more confidence.

Radar then fills the gaps EM leaves:

• de-energised or abandoned cables that carry no current;
• plastic water pipes and empty HDPE ducts that have no metal to pick up;
• cable trenches with protective covers or bricks, which reflect radar strongly;
• depth estimates at cross-lines, checked against any visible joint bays or chambers.

Where the two methods disagree, the report says so instead of picking one. The radar side is explained step by step in tracing HT and LT cables with GPR, while EM locator versus GPR compares the two tools.

How are road and drain crossings handled on a cable route?

Crossings get their own scan pattern. At a road crossing we run lines across the full carriageway and extend them into the verges on both sides, because services often turn or drop at the kerb. For a nala or culvert, the bank strips and the approach on each side are scanned so the designer can decide between passing over, under or alongside the structure.

When a crossing will be bored, the planned bore path and both pit areas are covered as far as access allows, and anything sitting within the likely drilling zone is flagged. Bore planning itself is covered on our HDD route survey page. Permission to work on a carriageway or near the metro is obtained by the project owner, and traffic arrangements are billed separately from the survey.

Is Mezux Touch working for TGSPDCL?

No. Mezux Touch is not affiliated with TGSPDCL, GHMC, the metro or any development authority, and has no approval, empanelment or tie-up with any of them. Our clients on electric grid underground survey work in Hyderabad are the EPC contractors, consultants and developers who carry out cabling projects. The findings belong to whoever places the order, and how they are submitted to any utility is decided by that client.

What does an HT/LT cable route survey in Hyderabad cost?

Cable routes are billed per metre surveyed. The standard rate is ₹24 a metre; when the work order wants buried services drawn against depth along the alignment, the L-section survey at ₹32 a metre applies. Hyderabad sits outside Delhi NCR, so a route under 4 km is charged at the 4 km length, and the total for any project never falls below ₹1,00,000. GST comes on top.

Cross 100 km in one order and the whole length is billed 25% lower; a 500 km-plus order gets 40% off, and a 1,000 km-plus order half off. Our rate covers scanning, marking and the report. Mobilisation of the crew, any work at night, traffic control or permits, and drawing sets in CAD or GIS each carry their own price. See the price list for every slab.

What does the cabling contractor receive?

As a power cable mapping company in Hyderabad, we hand over two things as standard: marks on the road surface, coloured by utility with approximate depths beside them, and a signed report listing every find against your chainage or drawing. The report also states which stretches could not be scanned and why. If the L-section was ordered, the depth profile comes with it; our L-section GPR survey page explains when tenders ask for one. HT cable route mapping in CAD or GIS format can be prepared as a separately quoted drawing set.