supply of supply of 500 ah 24 v vrla batterysupply of 500 ah 24 v vrla battery,supply of 500 ah 24 v vrla battery comprising of 12 nos. of 2 v modules along with inte r-cell connectors generally conforming to rdso spec.no. rdso/pe/spec/ac/0009- 2014(connector wit h box) (rev.2). the battery shall be suitable for 1600 hp engine starting meeting the following dut y cycle: engine cranking profile for 1600 hp demu engine: maximum cranking current- 800a batte ry voltage shall not fall below 20 vo1ts. cranking cycle consists of following sequence 1st sta rt : 15 seconds on and 10 seconds off 2nd start : 15 seconds on and 10 seconds off 3rd start : 15 seconds on and 10 seconds off 3 cranking cycles can be performed with time interval of 2 m inutes between the cycles. next set of cranking cycle can be followed after time interval of 10 minutes. the battery shall be supplied along with frame arrangement suitable for accommodat ing 500 ah 24 v vrla battery. the overall arrangement of the frame shall be as per drg. no.icf /sk 3- -7-2-050. however, any modification required on this arrangement to accommodate 500 ah vrla battery can also be carried out in consultation and approval of icf. note: a. the oga drawings and bom shall be got approved before commencement of proto type unit. b.one prototype samp le shall be submitted for approval, before commencement of bulk supply ( warranty period : upto 30 months from the date of supply). [item is reserved for rdso approved source only item id-2300197]. [ warran ty period: 30 months after the date of delivery ] sr. section engineer (cw) ghorpadi, maharashtra 3.00 set