Types of Projects We Undertake : We are rather selective and agree only for those turn-key projects where we feel we can deliver to the client as per his desired specification and to his full satisfaction. Most of the projects we undertake pertain to Substation Work, Electric Panels, Internal and External Electrification, LT & HT Cabling and Termination, Overhead Transmission Lines, Overhead Transmission Towers, Maintenance of Transformer, Oil Fitration of Transformer, Main and Sub-main Switch Boards, Earthing, Street Lighting, Flood Lighting, Lighting in Parks, Instrumentation System, Communication System, Cable Tray and Trunking, Installation & Commissioning of Diesel Sets, Transformers and UPS Systems, etc. Apart from these we also undertake Operation and Maintenance Works for Long Term Performance. We have all measuring and test equipments required for inspection, calibration and testing of installations at site. Most important is that we also liaison with Electricity Board from beginning to end stage for satisfactory work completion. Main Features of Our Services :
Preparation of bill of quantities, tendering
Sourcing of material
Preparing detailed work schedule
Marking and execution in accordance with schedule
Obtaining finished levels
Evaluation and submission of progress report
Execution of planting schemes
Safety Precautions :
Where necessary, we display a caution board indicating ‘CAUTION – CABLE JOINTING WORK IN PROGRESS’ to warn the public and traffic.
Before starting jointing, we take all safety precautions like isolation, discharging, earthing, display of caution board on the controlling switchgear etc. to ensure that the cable would not be inadvertently charged from live supply.
Trenching & Cable Laying :
Our trenches for cable laying are straight or with suitable curvatures and with changes in depth gradient being gradual. These have a minimum width of 45 cm and depth of 75 cm. Bottom of the trench is always kept free of stones and bricks.
When there is more than one cable in a single trench, we ensure that these are kept at a distance.
We give a minimum 9 cm dry sand cushion below and above the cables. Over the topmost layer of sand cushion we put one layer of bricks as an extra protective covering, and over that put back the excavated soil free form stones and debris. In order to avoid chances of any water logging, our trenches have about 10 cm hump on top with tapering on sides.
At entry/exit cable points into the building we pass the cables through pipe sleeves, which are properly sealed to prevent entry of any seepage water.
Our manholes are large enough to have sufficient working space and for feeding/drawing of cables.
We always leave sufficient cable loop length that is a must.
Testing of Cables : In normal dry weather we keep the Megger value at 50 Mega Ohm. Apart from this we also conduct following tests.
Insulation resistance test
Continuity resistance test
Sheathing continuity test
Earth test (in armoured cables)
Hi Pot test
Also test on site for insulation between phases and between phase and earth for each length of cable, before and after jointing. After cable laying down has been completed, we carry out following tests in presence of owner’s representative.
Insulation resistance test (sectional and overall)