annual repair and maintenance of fire alarm , detection and pa cum talk back system at various ndmc buildings during 2020-21 . sub head- comprehensive amc for fire alarm and detection system at various ndmc buildings , comprehensive amc for fire alarm and detection systems installed at below cited buildings including weekly / fortnightly / monthly visits and whenever required or in case of any defect in the system by the team consisting of engineer , technicians and helpers with the aim to keep the system functional round the clock including servicing , maintenance , testing and cleaning the system internally as well as externally . the inventory installed in the building for servicing , maintenance , testing & keeping the system in perfect order is available at the respective control rooms complete to the entire satisfaction of fire officer / engineer in charge . mandir marg barat ghar , moti bagh barat ghar , psoi club , nehru park and aaradhna ( old age homes ) and east kidwai nagar banquet hall a ) engineer - 1 no . - 01 visit / fortnight b ) technical foreman - 01 no . - 01 visit / week c ) helper - 02 nos . - 01 visit ( each ) / week , engineer , technician , helper , akanksha ( women hostel ) and palika health complex a ) engineer - 1 no . - 01 visit / fortnight b ) technical foreman - 01 no . - 01 visit / week c ) helper - 02 nos . - 01 visit ( each ) / week , engineer , technician , helper , replacement / supply , installaton , testing / commissioning of smoke detector with builtin led and mounting base complete with all connections etc . complete in all respect to the entire satisfaction of fire officer / engineer in-charge , replacement / supply , installaton , testing / commissioning of fire alarm sounder with facility to make announcement , mounted in ms box ( 16swg ) with hinged cover plate & suitable for operation with amplifier i / c line matching transformer etc . complete in all respect to the entire satisfaction of fire officer / engineer in-charge , supplying and laying of of 2 x 1 . 5 sq . mm fire alarm armoured cable , 600 / 1000v rated with annealed copper conductor having xlpe insulation , steel wire armouring & frls outer sheath complete in all respect to the entire satisfaction of fire officer / engr-in-charge . , credit of unserviceable materials including dismantling the same and removal from the site / disposing off as per norms and specifications complete all as specified and as directed by fire officer / engr-in-charge . , smoke detectors obtained from item no . 02 , fire alarm sounder obtained from item no . 03