What are the design specifications for the distribution room

The design code of the distribution room must be located far away from the building and in a dry environment, with no other high-voltage equipment around.

"Code for the design of substations of 10kV and below" GB50053 94 Chapter 6 Section 2 of the requirements for the building are as follows:

Article The high-voltage distribution room should be equipped with natural lighting windows that cannot be opened, and the window sill should not be lower than the outdoor floor; The low-voltage distribution room can be equipped with natural light windows that can be opened. The side facing the street of the distribution room should not be opened. Article 1 The doors of the transformer room, distribution room and capacitor room should be opened outward.

When there is a door between adjacent distribution rooms, the door should be able to open in both directions. Article The doors and windows that are frequently opened in each room of the power distribution station should not be directly connected to the adjacent places with serious acid, alkali, steam, dust and noise. Article 1 Transformer rooms, distribution rooms, capacitor rooms, etc., shall be equipped with facilities to prevent rain, snow, snakes, and rodent animals from entering the room from lighting windows, ventilation windows, doors, cable trenches, etc.

Article The surface of the interior wall of the distribution room, the capacitor room and the auxiliary room should be plastered and whitewashed. The ground (floor) should be calendered with high-grade cement plastering. The ceiling of the distribution room, transformer room, capacitor room and the inner wall of the transformer room should be whitewashed.

Article The power distribution room with a length greater than 7m should be provided with two outlets, and should be arranged at both ends of the power distribution room. When the length is greater than 60m, it is advisable to add an outlet. When the substation is arranged in a double-storey arrangement, the distribution room located upstairs should have at least one exit to the outdoor platform or passage.

Article The cable interlayer, cable trench and cable room of the distribution station and substation shall take waterproof and drainage measures. The prevention and control of leakage in the distribution room should adhere to the principle of multi-channel fortification, combination of elimination and prevention, and comprehensive treatment, and adopt various means such as comprehensive fortification, node sealing, and composite waterproofing.

1. Control the cracks of the wall: Under the current level of construction technology, it is difficult to completely avoid the cracks of the external wall no matter what structural form is adopted. In addition, there are a large number of window holes, door holes, scaffolding holes, reserved pipeline holes, window flute holes and other weak parts in the external wall of the distribution room, and special attention is paid to these weak points in the external wall seepage.

In addition, improving the impermeability of wall materials is of great help to the wall impermeability. Reasonable masonry materials are selected for exterior wall masonry, and the gaps between the blocks are plugged to prevent wall leakage caused by infiltration.

2. Strengthen wall drainage: The common practice of strengthening wall drainage is to take water-repellent treatment measures on the external wall. For example, silicone emulsions are used to treat the exterior walls so that they cannot be wetted with water to prevent leakage due to capillary action.

3. Promote new coating film waterproof coatings: With the innovation of waterproof construction technology and the wide application of new exterior wall waterproof materials (such as polymer, polymer modified asphalt, asphalt-based and other different binders composed of coils, coatings and sealing materials, as well as various admixtures used to improve the impermeability and crack resistance of rigid waterproof concrete, it is becoming easier and easier for exterior walls to seepage.

4. Strengthen the maintenance in use: After the completion of the decoration of the building, the use management and maintenance should also be strengthened to avoid the plastering and other structures falling off due to environmental factors such as external impact and frost heave, resulting in the reduction of the anti-leakage ability of the external wall.

How to install the wind in the distribution room? Pumping or supplying air?

The dimensions of the low-voltage distribution cabinet: 800 (W) x 600 (D) x 2200 (H), the number of distribution cabinets is 30 sets, when the length of the distribution device is greater than 15m, the outlet behind the cabinet should be increased.

When the length of the power distribution device is greater than 6m, there should be two outlets behind the cabinet, and when the length of the power distribution device is greater than 15m, there should be three outlets behind the cabinet, so the minimum size of the power distribution room should be, increase by 1m.

Installation of the switchroom door.

When the length of the distribution room is greater than 7m, two doors should be arranged, and these two doors should be arranged at both ends of the distribution device; When the length exceeds 60m, a door should be added in the middle, and the door should be opened outward, and a spring lock should be installed. If there is a door between adjacent distribution rooms, the door should be able to open in both directions.

If the total oil volume in the room where the oil-filled electrical equipment is installed is 60 kg or more, and the door is opened to a building that is not within the scope of the power distribution unit, the door shall be a non-combustible or refractory physical door.

Quasi-distribution room meters, sufficient, generally 2 meters of distribution cabinets. Do it more than electrostatic flooring. However, in the generator room, the generator capacity is 150kw, the net height is not less than meters, the clear height is 200kw, and the clear height of 400kw is 4 meters; 500kw 1000kw clear height meters meters; 1200kw2000kw net height m m 4 6 3 The distance between the power distribution device and the roof in the house should not be less than, when there is a beam, the distance from the bottom of the beam should not be less than.

Therefore, the requirements of high voltage are: when there is no cable trench: m (cabinet height) + m (from the bottom of the beam) + m (height of the main beam) = m when there is a cable trench:

cable trench according to meters, because there is a ground beam electrician.

Electricians must undergo professional and safety technical training, and be issued an operation certificate after passing the examination of the (prefecture) municipal labor department, and then they are allowed to operate independently.

Electricians should have a basic knowledge of electrical safety and all equipment performance.

Wear personal protective equipment according to regulations before taking up work.

The deactivated equipment should be turned off and the switch box should be locked.

Responsible for protecting the load line of the electrical equipment, protecting the neutral line (repeated grounding) and the switch box.

Mobile electrical equipment must be cut off from the power supply, in general is not allowed to live work, live work to set up a guardian.

Regularly inspect the power lines according to the regulations, deal with problems in a timely manner, and make inspection and maintenance records.

You should know the common sense of electric shock first aid and electrical fire extinguishing.

3. Safety distance and external power protection

External power line: refers to any power line other than the temporary power line at the construction site.

It is forbidden to construct under the high and low voltage lines, erect temporary facilities or stack objects, racks, materials and other sundries.

Safety distance: The minimum safety distance between the outside of the construction in progress (including scaffolding) and the overhead line is not less than 4m for 1kv, not less than 6m for 1 10kv, and not less than 8m for 35 110kv. The maximum sag of the overhead conductor is the minimum distance between the ground of the construction site and the motorway.

The minimum distance between the motorway and the external overhead line is 6m below 1kv, and 7m below 10kv.

External electrical protection: If the safety distance requirement is not met, protective measures must be taken, barriers, fences or protective nets must be added, and eye-catching warning signs must be hung.

The safety distance from the live body to the fence should be greater than 95cm at 10kv and greater than 115cm at 35kv

The safety distance from the live body to the fence (closed) should be greater than 30cm at 10kv, and greater than 50cm at 35kv.

When erecting protective facilities, there should be an electrical technician or a full-time safety officer to supervise.

There is no standard size for the distribution room. According to the design drawings, the comprehensive electricity consumption situation, the structure of the distribution room is reasonably arranged.

1.The high-voltage distribution room is provided with a window that cannot be opened, which is not lower than the floor, and the low-voltage distribution room is equipped with a window that can be opened. It is not advisable to open windows on the street.

2.Doors such as the transformer room are opened outward. It can be opened in both directions between adjacent distribution rooms.

3.After being told that the door and socks that are often opened, the window should not be directly connected to the adjacent acid, and the place where the laughing alkali is serious.

4.The transformer room, power distribution room, etc. should be equipped with facilities to prevent rain, snow and small animals from entering the room.

5.There should be two outlets in the distribution room with a length greater than 7m.

Legal analysis: It is suitable for the installation and acceptance of general low-voltage electrical appliances with AC 50Hz or 60Hz, rated voltage of 1000V and below, and DC rated voltage of 1500V and below.

Legal basis: "Code for Construction and Acceptance of Low-voltage Electrical Appliances in Electrical Installation Engineering GB50254-2014" 1 0 2 This specification is applicable to the installation and acceptance of general low-voltage electrical appliances with AC 50Hz or 60Hz, rated voltage of 1000V and below, and DC rated voltage of 1500V and below. Not available for:

1. Installation and acceptance of household appliances, electrical instruments and complete sets of plates, cabinets and boxes that do not require fixed installation;

2. Installation and acceptance of low-voltage electrical appliances in special environments.