(1) Purchase and installation of distribution equipment and incoming cables in the distribution room of the VIP building (outgoing cables of low-voltage distribution cabinets have been included in the decoration project of the VIP building);

(2) The general plan construction drawing is led from the off-line pole outside the red line to the high-voltage power distribution room of the power distribution station, and the cables and high-power supply and high-meter devices are purchased and installed;

(3) Purchase and installation of high-voltage power distribution cabinets, DC power supply signal systems, low-voltage power distribution cabinets, transformer equipment, bus ducts, bridge frames;

(4) Purchase and install the diesel generator set, supporting power supply and distribution equipment and bus duct connected with the low-voltage cabinet;

(5) the power cable and protective tube of the power supply loop from the low-voltage distribution cabinet in the low-voltage distribution room of the conference and catering center to the building outside the conference and catering center (the outgoing cable of the low-voltage distribution cabinet is introduced into the distribution boxes and equipment in the conference and catering center, which has been included in the decoration project of the conference and catering center);

(6) cables and protective tubes connected between panels in the distribution station;

(7) Cable trench and cable shaft construction in the general layout construction drawing;

(8) ignition, power transmission and distribution equipment and line test and debugging of high-voltage distribution equipment;

The power distribution room is also called the power distribution room. In the national standard, the definition of the power distribution room is: "There are only high-voltage power distribution devices that can switch on and off and distribute electric energy, and there is no main transformer on the bus". The difference between a distribution substation and a substation is that there is no transformer in the distribution room (distribution substation), but all transformers in the substation. The power distribution room is the key part of the power supply system of the building, and a full-time electrician is set up to run it 24 hours a day. Without the permission of the management office manager and department head, non-staff members are not allowed to enter. The attendant must hold relevant certificates and be familiar with the status of power distribution equipment, operation methods and safety precautions. The attendant must pay close attention to the indication of voltmeter, ammeter and power factor meter; It is forbidden to overload the air switch. Always keep the ground and equipment appearance of the distribution room clean. Switching operation of the equipment in the transformer room shall be carried out by the attendant alone, and other personnel present only serve as guardians and shall not intervene; It is forbidden for two people to switch the brake at the same time to avoid mistakes.

1. Power transmission: (The power supply of the building is interrupted, so it needs to be restored quickly)

① Find out whether it is the external transmission line fault or the internal distribution line fault. External fault: the transformer is not working (no noise, no display on the display screen); Internal fault: the transformer works normally (there is noise, the display screen shows the temperature, and the fan operation indicator light is on).

(2) the external line is out of power. After contacting the power supply department, wait for power transmission to resume.

(3) internal line fault power failure, quickly find out the cause of the fault and immediately eliminate it before sending.

④ power transmission step: cut off all load switches (especially the lighting part); Press the green start button of 1# cabinet and 5# cabinet, and the voltmeter indicates normal (411 V); Close each load switch one by one.

⑤ If the transformer is working (with noise and temperature display) and the fan indicator light is not on, it means that the external transmission line has stopped power and then immediately resumed power transmission. At this time, just start the cooling fan and then send power according to the power transmission steps.

2. Power outage: (Power outage is required for equipment maintenance or other reasons)

① Power outage for equipment maintenance: Turn off the corresponding circuit breaker, and take necessary safety operation measures (mainly: grounding protection of equipment power cord and shell, hanging warning signs of "No switching on by someone", and doing insulation protection for maintenance personnel, etc.) before equipment maintenance can be carried out.

② If a complete power outage is required, you must disconnect the circuit breakers one by one, and then press the red buttons of cabinets 1# and 5#.

(3) to cut off the high-voltage power supply, it must be implemented according to the operating instructions of the high-voltage ring network switchgear.

I hope I can help you solve your doubts.