annual repair and maintenance of fire alarm, detection and pa cum talk back system at various ndmc buildings during 2020-21. sh:- comprehensive amc for public address system and replacement of speakers at khan market barat ghar, community centre golf link, jor bagh & babar road, polyclinic sbs marg, lbn gymnasium and east kidwai nagar banquet hall in ndmc area., comprehensive amc for public address systems for customized rack , booster / mixer amplifier , 240 / 120w , mike , speakers , horns , cable / conduit etc installed at below cited buildings including weekly 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 . i ) khan market barat ghar ii ) community centre golf link iii ) polyclinic sbs marg iv ) community centre jor bagh v ) community centre babar road vi ) laxmi bai nagar gymnasium vii ) east kidwai nagar banquet hall a ) engineer - 1 no . - 01 visit / week b ) technical foreman - 01 no . - 01 visit / week c ) helper - 02 nos . - 01 visit ( each ) / week note : atleast 01 visit / week / building is required by the team consisting of 01 engineer , 01 technician and 02 helpers , engineer , technician , helper , replacement / supply , installation , testing & commissioning of 1 . 5 / 3 / 6w ceiling speaker complete all as specified and as directed by fire officer / engr-in-charge . , replacement / supply , installation , testing & commissioning of 1 . 5 / 3 / 6w metal box ceiling / wall speakers complete all as specified and as directed by fire officer / engr-in-charge . , replacement / supply , installation , testing & commissioning of ceiling / wall mounted loud speakers , 3 / 1 . 5watt in abs enclosure complete all as specified and as directed by fire officer / engr-in-charge . , supplying and drawing of cable fire reatrdant pvc insulated copper conductor cable in the existing surface / recessed steel conduit of following pairs , cores and sizes including connections and interconnections etc . as required complete all as specified and as directed by fire officer / engr-in-charge: , speaker cable single pair , 2-core , 1 . 5sqmm , speaker cable two pair , 2-core , 1 . 5sqmm , speaker cable three pair , 2-core , 1 . 5sqmm , speaker cable four pair , 2-core , 1 . 5sqmm