supply , installation and commissioning of centrifugal blower with flame proof motor , list of item ( s ) / work ( s ) as per tender documents , design , engineering , manufacture , inspection , testing and supply of centrifugal blower 57-k-005 a/b with electric motor , coupling ( with spacer ) , coupling guard ( non sparking ) , foundation bolts with nuts & washers , suction and discharge matching flanges , support plate ( rectangular ) , motor stool , driver fixing bolts with shims and commissioning spares as per:1 . blower data sheet . 2 . technical specification for centrifugal blower3 . technical specification for couplings , specification no: iocl/ m&i/mech/e/r/07 , rev . 00 dtd 19 . 01 . 20124 . technical specification for medium voltage induction motors . , supply of mandatory spares parts for comissioning and two years operation of centrifugal blower 57-k-005 a/b as per technical specification enclosed . vendor has to provide mandatory spare list along with the technical bid and its price breakup along with the priced bid in sheet 2 . , supervision during installation and comissioning of centrifugal blower 57-k-005 a/b at iocl bgr site as per bill of materials