supply of l.t. fuse unit for distribution transformers as per drawing attached manufactured from prime mild steel channel 75x40mm (5.7 kg./ meter), m.s. flat 40x6mm conforming to is: 2062/92 & section details as per is 808/1989 & is 1730/1989 and tolerances as per is 1852/1985. lt fuse unit structure should be fitted with 2 no. lt shackle insulators per phase i.e. 6 nos. lt shackle insulators per unit of standard make conforming to is 1445 with latest editions and amendments. all metal parts shall be given a coating of red oxide primer. nuts, bolts and washers shall be black. the fuse unit supplied should also conform to detailed specifications, guaranteed technical particulars and approved drawing attached along with. = 19900 nos.