Understand The Installation Requirements And Operating Procedures Of The Distribution Box

Installation requirements for distribution boxes

The distribution box should be made of non-combustible materials;

Open switchboards can be installed in production sites and offices with low risk of electric shock;

Closed cabinets should be installed in processing workshops, casting, forging, heat treatment, boiler rooms, wood workshops and other places with high risk of electric shock or poor working environment;

In dangerous workplaces where conductive dust or flammable and explosive gases are generated, enclosed or explosion-proof electrical facilities must be installed;

The electrical components, meters, switches and lines of the distribution box should be neatly arranged, firmly installed and easy to operate;

The bottom surface of the floor-mounted board (box) should be 5-10 mm above the ground;

The center height of the operating handle is generally 1.2～1.5m;

There is no obstacle within 0.8～1.2m in front of the box;

The protection line is connected reliably;

There shall be no naked live body exposed outside the box;

The electrical components that must be installed on the outer surface of the box or on the switchboard must have reliable shields.

Operating procedures for power distribution cabinets

(1) The power distribution cabinet is the normal operation of the eight production and equipment of the ship's power distribution center, and any unrelated person shall not pull the switch on the board.

(2) After the generator set is started, use the power screen speed-up switch to manually accelerate slowly until the generator enters the normal working state and the voltage and frequency reach the specified value, then the power supply can be switched on.

(3) After the switchboard enters the power distribution state, the power panel speed-up switch shall not be pulled at will, and the lock switch of the air circuit breaker shall not be used in non-emergency situations.

(4) Parallel operation of generators should be operated in strict accordance with the requirements and regulations of paralleling conditions, and attention should be paid to the occurrence of reverse power (backflow) and parallel failures.

(5) When stopping the generator, the load of the generator should be cut off first, and then stop without load. It is not allowed to stop directly with load.

(6) When interposing shore power, cut off the power switches of the shore power screen first, and then check the correctness of the wiring and phase sequence. After confirming the correctness, the ship-to-shore power conversion can be implemented. Load operation is strictly prohibited.

(7) The power distribution cabinet should be cleaned and maintained regularly to keep the equipment in good working condition.

(8) When the generator is working, the engineers should concentrate their thoughts and operate carefully to prevent accidents, otherwise they will be held accountable for personal accidents.

(9) The charging and discharging board is a ship's emergency switchboard. The crew on board should check their working conditions frequently to ensure sufficient low-voltage power at all times and grasp the working conditions of the magnetic saturation regulator through the on-board instrument.

(10) During normal sailing, the switches on the switchboard should be turned on to ensure that the generator can be started at any time and can be put into use at any time when it is required.