Description: Classification of the devices according to the level of safety; Name: Explosion protection category for devices (electric motor)
Description: Allocation of the devices in accordance with the safety measure; Name: Explosion protection category for devices , electric motor
Description: Ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p, to the square of a reference value, p0, expressed in decibels; Name: Sound pressure level