According to national standards, the wall thickness of the low-voltage distribution box should not be less than 1. Our mission is to meet customer"d5s expectations by providing satisfaction through cost, quality, service, delivery and continuous improvement. Generally speaking, the thicker the box, the better its endurance, heat resistance, and safety. Medium and Low Voltage Systems from Eaton are highly standardized systems supported by quick configura-tions, quoting facilities, and fast. 4 KV Substation of the ratings indicated above. These Distribution Cabinets are to be outdoor type nd to be fabricated out of 2 mm GI sheet steel. The body of the boxes shall have sufficient re- enforcement with suitable size of channels keeping a provision for fixin andle conforming to general. required. To extinguish the arc immediately in iso ators, in each phase arc-chutes with minimum 12 strips ype. The handle of the isolator should 3 er m ab u in n. From residential 100-amp panels to massive 600 amp main distribution panels in commercial facilities, this comprehensive guide will help you understand distribution board types, sizing calculations, and installation requirements to make informed decisions about your electrical infrastructure.