Electrical & Civil EPC
HT & LT Transmission Lines
Erection and stringing of 11 kV, 33 kV and EHV overhead lines on rail, tubular and PSC poles, from survey through to charging.
Voltage range11 kV – 220 kV
Overhead line construction is the discipline Ranisons has done more of than any other — over 400 km of 11 kV line, 100 km of 33 kV line and 200 km of LT line under the Jharkhand State Electricity Board’s rural electrification and Accelerated Development Programme schemes, plus industrial feeders for coal washeries, castings works and food processing plants.
Notable packages include an 8.5 km 33 kV incoming line from P/S/S Sikidri to Jharkhand Mega Food Park (₹396 lakh), an 11 kV DVC line on rail poles for Electrosteel Castings (₹200 lakh, project completion certificate on file), and a 33 kV line on 13 m rail poles for Monnet Daniels Coal Washeries (₹210.46 lakh).
Method
How we deliver
- 01
Route survey & profiling
Alignment survey, profile plotting, tower or pole spotting and right-of-way assessment.
- 02
Approvals & liaison
Statutory clearances and utility approvals — on several contracts we have carried this risk within our own scope.
- 03
Foundation & pole erection
Excavation, foundations and erection of rail, tubular or PSC poles to the specified spans.
- 04
Stringing
Conductor stringing, sagging to approved tension charts, and fitting of insulators and hardware.
- 05
Testing & charging
Continuity and insulation testing, earthing checks, and charging under utility supervision.
Questions
Frequently asked
What voltage levels do you work at?
We have executed lines at every level from 415 V up to 220 kV, including 11 kV and 33 kV distribution, and staffing of 220/132/33 kV grid substations.
Which pole types can you supply and erect?
Rail, tubular and PSC poles. We are one of the region's established pole suppliers, so the pole type is selected on engineering grounds rather than on availability.
How much line have you built?
Over 400 km of 11 kV line, 100 km of 33 kV line and 200 km of LT line under the JSEB rural electrification and A.D.P. schemes alone, alongside private industrial contracts.
On site execution records
High-tension conductor stringing, cable drum staging, and underground feeder crossings.
Individual Frame Inspection (6 captures)
XLPE and ACSR conductor drums staged along utility corridor.
Conductor tensioning and pulling across highway crossing.
Crew preparing underground duct banks for feeder lines.
Trailer-mounted winch system for high-tension cable pulling.
High-voltage line terminations onto substation steel gantry.
Drop conductors made off and connected.
