supply of single core thin walled electron beamsingle core thin walled electron beam,single core thin walled electron beam irradiated copper cable size 2.5 sqm m in red, yellow, blue and black colour in equal quantity with copper conductor, work ing voltage above 750v & up to 1.8/3.0 kv, suitable for rolling stock application as per r dso spec no elrs/spec/elec/0019 rev.4 of feb 2018. note: 1) item/type/model/make/brand fr om the manufacturer/suppliers as approved by rdso shall only be considered. 2. firm s hall indicate the curing process (e-beam irradiation (or) chemical curing) in their offer . as per drg.no. rdso spec no elrs/spec/elec/0019 rev.4 specn: rdso spec no elrs/spec/elec/0 019 rev.4 of feb 2018. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited