Amendment to the 1st call for work of providing & applying of high insulation resistance coating on tertiary side equipments of 501 MVA, 400/220/33KV ICTs like 33KV PT , BPI, IPS tube, LA & tertiary bushings for prevention of unwanted tripping of ICT-I & ICT-II at 400/220KV Chandrapur-2 Substation under 400KV RS O&M Dn-II,Chandrapur.