Applicable to the safety of electrical motor-operated vacuum cleaners,including appliances and stationary equipment specifically designed for wet suction, dry suction, or wet and dry suction for industrial and commercial use.The rated voltage being not more than 250 V for single-phase and 480 V for other appliances. This consolidated version consists of the third edition (2002) and its amendment 1 (2004). Therefore, no need to order amendment in addition to this publication.