supply of brushless dc ( bldc ) motor ceiling fan, isi marked, sweep size: 1400 mm, minimum air delivery-245 cubic meter / min, total harmonic distortion- 8% [ max ] , rated voltage: 230 v, 50hz single phase ac, speed control with electronic regulator ( step type with minimum 5 running positions ) , blade thickness ( min ) : 1.1mm, blade material : aluminium, bearing : double ball bearings, down rod size ( without shackle ) : 300mm, shank & shackle thickness ( min ) : 2mm, canopy : 2 nos., colour standard: white, bee rating : 5 star ( as per bees amendment to schedule 8 for ceiling fans rev.2 dt. 08.08.2019 ) , rated power-35 watt [ max ] , warranty [ min ] 2 years. conforming to- ( i ) is:374 / 2019 ( ii ) is:302 ( part 2 / sec 80 ) - for safety requirement. ( iii ) is:14700 ( part 3 / sec2 ) for thd. firm has to supply 5% of additional identical pcbs ( as used in ceiling fans ) along with the ceiling fans for post warranty repairs. packing of pcbs should be free from moisture and damages. technical data sheet is required from the tenderers along with the offer in the format annexure a ( copy attached ) . [ warranty period: 30 months after the date of delivery ]