RAILWAY CARRIAGE FAN 110 VDC 225MM SWEEP BRACKET TYPE CONFIRMING TO IS 6680-1992 WITH ANNEXURE -H DEC 2005 WITHOUT OPTIONAL CLAUSE 20.0 MS BLADE AS PER IS:6680-1992 FIG. 1A AND CRASHWORTHY GUARD AS PER ICF DRG. NO. ICF/SK--7-6158. COLL-II , ALT-F MS. THE COLOUR OF MOTOR AND BRACKET BASE SMOKE GREY ENAMELLED PAINT AND GUARD AND BLADE SHALL BE POWDER COATED SMOKE GREY COLOUR.