... CE and ISO certificate Perkins Diesel Generator set (50Hz, Engineering Canopy, 166kva - 550kva) Specification of power diesel generator set.1 ... level : 60dB to 75dB at 7 meters ( with engineering canopy)3) Sound attenuated enclosure: special noise elimination setting restrains the ... base tank.6) Key start/ Auto Start7) Soundproof/weatherproof canopy is optional8) 400V/230V, 50Hz, 1500rpm, 0.8PF, ...