supply of portable dc welding generator , portable dc welding generator-dc generator shall be driven by diesel, in conformity w ith is:2635-1997 (reaffirmed 2017) and generator conforming to bc.638 part 2:1979. limit of temperature rise as per is 2635-1997. portable dc welding generator fitted with an ampere meter properly to indicate t he welding current. (as per enclosed specification). dc welding generator 200-250 amp, useful for at weld ing and re-conditioning of railway track. generally and functionally as per rdso specification no.tm/sm/20 dt.19.11.1992 (first revision 2021) [ warranty period: 12 months after the date of delivery ] ]