Work regarding separate earthing for Lightning Arresters installed on power transformers at 3311KV electrical substations under the EDD-Chandauli, Mughalsarai, Sakaldiha under ABP 2026-27.

Providing and laying earthing arrangement for 33 KV Lightning Arrester (LA) installed in PTR located at different 33/11 KV S/S including supply and installation of G.I. pipe Electrode 40 mm dia or copper bonded Electrode , Excavation of pit size 2500x600 mm (min.), Backfill with Charcoal + Salt (Alternate layers) of earth pit, watering arrangement, Inspection chamber with (CI/RCC) , Earth Pit Cover(CI/RCC) and connecting the LA to Delta Earthing Conductor with suitable size G.I. strip complete in all respects as per relevant IS specifications and departmental standards. (Neutral-Delta Earthing)