Low-voltage switchgear and controlgear assemblies. Part 3. Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use. Distribution boards
Rectangular weld moulding boxes of cast steel elements having inside dimensions: length from 400 to 500 mm, width from 300 to 500 mm, height from 100 to 250 mm. Construction and dimensions
