supply of supply and installation of separate conduit for positive and negative wire. , supply and installation of separate conduit for positive and negative wire of 110v dc supply in fire detection systems fitted in previous revision rdso specification rds/2008/cg-04 rev 3 and rev.04 ac coaches as per rdso specifications rdso/2014/cg-04 rev.05. 1. cable for 110 v dc supply (positive a nd negative) suitable for laying form sbc panel to power supply unit of fire detection system. (as per rds o spec elrs/spec/elec/0019) rev latest 2. flexible conduit for laying cables for 110 v dc (separate con duit for positive and negative, suitable for laying form sbc panel to power supply unit of fire detection sys tem. (as per rdso spec rdso/pe/spec/ac-0138-2009 rev1 or latest. [ warranty period: 30 months afte r the date of delivery ] ]