Level 1 2 and 3 distribution boxes
Generally, first level distribution does not allow direct use of electrical equipment, and second level distribution will be by power equipment because it is three-phase electricity, while third level distribution is mains electricity (220V). Primary power distribution: temporary electricity is in a place where the construction needs electricity, that is, from the transformer into the three-phase power supply, ground wire, neutral line. However, when it comes to their meanings and functions, some might be quite unclear.
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