Ttps es em iii replacement of worn out area of gi earth flat by new earth flat size 50 x 10 mm and reconditioning of earth pits in esp iv area of unit iv

Improvement of earthing system by providing new earth pits for 132/33 kv power transformers, 33 kv bays, control room and 40mm ms raisers at 132/33 kv substation, pydibimavaram

Cable jointing ,cleaning, painting, earthing and illumination of head gear structure and supply and fitting of 300w led flood light for proper illumination at transport road and other important location at pandaveswar colliery

Providing, fabrication and construction of copper plate earthing as per drawing details of electrodes and earth pit at akashvani leh, ladakh,providing and interconnecting earth electrodes with providing, fabrication and fixing of 25mm x 3mm copper strip at akashvani leh, ladakh,providing of 25x3mm copper strip for extension of earthing system up to the transmitter hall, ups and lt panel in premises at akashvani leh, ladakh,laying of 25 mm x 3 mm copper strip from earthing system to bus bars and jointing the all joints and connections of ends of copper strips by copper riveting and brazing at akashvani leh, ladakh,providing of 375x38x6mm copper bus bar with insulators and steel nut bolts and fixing of 375x38x6mm copper bus bar is to be done to terminate the different earthing system at akashvani leh, ladakh,providing and fixing of nomenclature sign marker for earth pits at akashvani leh, ladakh

Provision of a masonry shed for office use at sawang magazine, under sawang gvp ph-ii, kathara area

Maintenance of earth pits and earthing system and providing new earth pits in main plant

Making temporary hume pipe culvert near railway under pass at sawang gvp ph-ii, under sawang colliery, kathara area

Earth pits, or grounding systems, are essential in pol locations to ensure safety and operational efficiency. they protect personnel and equipment from electrical shocks and faults, manage voltage surges, and pr static electricity build-up, which could lead to explosions. earth pits also offer overvoltage protection by dissipating high voltage from lightning strikes and managing voltage surges, thus protecting the facility and equipment. they stabilize voltage levels by providing a stable reference point, minimizing voltage fluctuations, and ensuring the reliable operation of protective devices. due to heavy rains, the washing away of conductive salts and compounds occurs, which may lead to the high resistance value. during the periodic inspection, it is found that resistance value of earth pit is higher than the is:3043-2018 specifications.

Installation of earth pits with copper electrodes (chemical earthing) and gl earth pipes (conventional earthing) with providing gl strip for proper matting inter connection of earth pits in 10 mva 5mva sub-stations and installation of convent

Making of 4 no maintenance free&#x0d chemical earth pit and earthing&#x0d screen at colliery magazine under urimari ocp.