Tertiary box

The distribution box at the construction site is used to assemble the switchgear, measuring instruments, protective appliances and auxiliary equipment in an enclosed or semi enclosed metal cabinet or screen to form a low-voltage distribution device according to the electrical wiring requirements. During normal operation, the circuit can be switched on or off with the help of manual or automatic switches. In case of failure or abnormal operation, cut off the circuit or give an alarm with the help of protective appliances. Various parameters in operation can be displayed by measuring instruments, and some electrical parameters can be adjusted to prompt or send signals for deviating from normal working conditions.