What configuration should a three-level distribution box be
The distribution box (cabinet) is suitable for temporary power supply at the construction site and should meet the requirements of "three-level power distribution, two-level leakage protection, one machine one switch, one leakage one box" for power distribution and protection. According to the hierarchical and branch circuit principle, in a three-level distribution system, no electrical equipment shall be connected by bypassing levels. A distribution board, also known as a DB box, is like the central hub of an electrical system.
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