supply of supply of axial fan suitable for working on 110v ac 50 hz supply , axial fan suitable for working on 110v ac 50 hz supply. the fan shall meet t he following requirement: (a) air volume 325 cmh (free air delivery) (b) power input: 41 w atts (c) voltage 110v ac (d) frequency: 50 hz (e) class of insulation : class b (f) noise leve l 50 db (max) (g) material (i) body-die cast aluminimum (ii) blade sheet steel/glass fitted p olycarbonate with ul 94 with v0 rating (h) finish : electrostatically varnish (black) (i) o verall dimension of the fan shall be as per icf drg no icf/sk-7-6-177 alt-nil (j) performace test will be carried out as per is: 3588 (latest) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]