Fire safety requirements for main distribution boxes
Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Cables that are supplying safety circuits shall have a resistance to fire rating of either the time authorized by regulations for building elements or British Standards for the circuits or one hour in the absence of such a regulation or standard. All the installations must be executed accord-ing to regulations and the appropriate fire protection proofs must be available. The plans will be used by operational fire-fighters during an incident and need to be. 1、 The power distribution system at the construction site shall be equipped with indoor general distribution panel and distribution box or outdoor general distribution box and distribution box for hierarchical power supply, and the capacity of distribution devices at all levels shall match the.
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