Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 21. Particular requirements for boxes and enclosures with provision for suspension means
Noise of machines. Determination of sound power levels using sound pressure. Engineering methods for small, movable sources in reverberant fields for hard - walls test rooms and for special reverberation test rooms
Connecting devices for low voltage circuits for household and similar purposes. Part 2-3. Particular requirements for connecting devices as separate entities with insulation piercing clamping units
