supply of components for track feed battery chargercomponents for track feed battery charger, components for track feed battery charger in set. one set consists of:- 1.m.s. cabinet and fasteners for track feed battery charger to rdso specification no:irs s.89 / 2013 version 1.0 or latest with list of items in set as per the enclosed annexure-1. 2.transformer and choke for track feed battery charger to rdso specification no: irs s.89 / 2013 version 1.0 in sets to specifications as per the enclosed annexure-2. one set consists of :- ( i ) . toroidal core transformer - 1 no. ( ii ) . choke - 1 no. ( two items only ) 3.electronic components and accessories for track feed battery charger to rdso specification no.irs s 89 / 2013 version 1.0 or latest in set as per the enclosed annexure-3. ( total three items only ) . [ warranty period: 30 months after the date of delivery ]