28Supply and installation of all kinds of electrical works including substations up to 200 MVA, PFC devices, HT & LT overhead lines up to 400 KV. Erection and stringing of electric transmission lines up to 400 KV. Supply and installation of air conditioners, repair and maintenance of sub-stations & transmission lines. Supply and installation of diesel generators, electrical installation of power generation plants. Supply and installation of high voltage underground cable, all types of grounding system.