supply of rail jumper with rail clamps at both endrail jumper with rail clamps at both end,rail jumper with rail clamps at both ends 14 mtrs long as per rdso drg no:re/33/p/500,501&50 4 copper cable pvc/rubber and clamp made of al-bronze with is:305/is:30 along with guarantee certificate and test certificate a)rail jumper with rail clamp at both ends,14 mtr pvc/rubber cable as per rdso drg.no:re/33/ p/500 b) rail clamp made of al-bronze is 3091/1999 asper rdso drg.no.re/33/p/501 c) rail jumper ferrule as per drg.no: re/33/p/504 d) size of copper cable will be 248/0.45mm (40 sqmm) as per rdso spec to is 1554( pt-i)1988. [ warranty period: 30 months after the date of delivery ]