supply and installation of uv ir flame detectors at hmrbpl , asansol ( w . b ) . refer technical specifications , scope of works and boq . , uv/ ir flame detectors explosion proof & weather proof along with all mounting & otheraccessories . detailed technical specifications as per annexure-a , surge protection devices for analog signals from 3 wire infrared hydrocarbon detectors &3 wire uv/ir flame detectorsdetailed technical specifications as per annexure-b , installation of uv/ir flame detectors , installation of spd , terminating the cables at field and controlpanel end , installation of spd , connecting to earthing grid by supplying and installing all the requiredmaterials such as supporting structure , cement concrete , painting , gi wire etc . ( excluding supply of the uv/ir flame detector and spd ) complete in all respect . technical specifications as per annexure-a and scope of work as per annexure-c .