Is the prefabricated cabin of a substation a building or a structure?

A building generally refers to a house or place where people can carry out production, living or other activities. For example, industrial buildings.

Civil buildings, agricultural buildings and garden buildings, etc.

Structures generally refer to places where people do not directly carry out production and living activities. Such as water towers, chimneys, trestle bridges.

Dams, reservoirs.

Wait. A building in a broad sense refers to everything that is artificially constructed, including both houses and structures.

A building in the narrow sense refers to a house and does not include structures. A house refers to a place with foundations, walls, roofs, doors, and windows, which can shelter from the wind and rain, and can live, work, study, play, store items, or carry out other activities.

Structures refer to buildings other than houses, where people generally do not directly carry out production and living activities, such as chimneys, water towers, bridges, dams, etc.

What is different from a building is a structure, which refers to an engineering structure other than a house, such as fences, roads, dams, wells, tunnels, water towers, bridges, and chimneys. In many cases, buildings are used in relation to structures, although they are sometimes confused. Similarly, the term "building" focuses on its aesthetic image or encloses a usable space, i.e., it is emphasized that it is relatively directly viewed or entered into the activity.

Structures, on the other hand, refer to other fixed man-made objects that serve people relatively indirectly in order to meet certain use needs, such as dikes that hold back water.

For the prefabricated cabin you are talking about, it should belong to the building and must be designed in accordance with the requirements of the building fire code.

The prefabricated cabin belongs to a complete building structure, which is generally only used for buildings, and for structures, it cannot form a complete cabin structure when it is generally prefabricated, but only a part of the whole, and cannot be called a prefabricated cabin, such as prefabricated water towers, chimneys, pipe galleries, caissons, etc.

Summary. Kiss, pay special attention to 4 points.

Kiss, pay special attention to 4 points.

1.In order to ensure the reliability of the normal operation of the equipment and the convenience of later operation and maintenance, the insulation and protection level of the cabin must be strictly required by the manufacturer to achieve 2The prefabricated cabin body is relatively compact, the bottom reserved cable interlayer and the channel are more crowded, and the cables are relatively concentrated, so it is necessary to consider that sufficient cable channels are reserved in the prefabricated cabin foundation to prevent the insulation damage of high-voltage cables caused by insufficient turning radius 3

The prefabricated cabin has a large external size, and the builder needs to urge the supplier to plan the delivery route in advance and handle the overrun procedures related to road transportation in advance4The production of prefabricated cabin factory hood is carried out at the same time as the on-site civil foundation construction, and the positioning height difference of the civil foundation and embedded parts should be strictly in accordance with the requirements of the implementation plan to avoid large deviations in the later installation.

How to connect the prefabricated cabin foundation of the power station? Connect.

How to weld the foundation and embedded parts?

Kiss, connect with a wire, the connection is to pay attention to the temperature. The temperature should not be too high.

Welded with a hydrogen flame, kiss.

Is it all welded?

1. The construction process of embedded parts is as follows: (1) steel bars and steel plates are excavated and processed; (2) welding; (3) formwork support and installation of embedded parts; (4) Proofread the size and position of the embedded parts against the construction drawings; (5) pouring concrete; (6) Curing and mold removal; (7) Check the construction quality of embedded parts; (8) Repair treatment. 2. Before the construction of the embedded parts, the type, location and quantity should be understood first, and then the embedded parts should be made and fixed according to the standard requirements.

The raw materials of the embedded parts should be qualified, and the certificate must be checked before processing, and the necessary mechanical property tests and chemical composition analysis must be carried out, and the visual quality must be qualified, and there is no obvious rust on the surface. The straightening and cutting of steel bars and the marking and cutting of steel plates need to be carefully implemented according to the size of the drawing. For structural embedded parts and embedded parts with special requirements, attention should be paid to the hook length and angle of the anchor bar.

3. Before the embedded parts are welded, it is necessary to check whether the varieties of steel reinforcement plates meet the design requirements and mandatory standards. 4. For the selection of welding rod and flux type, it is necessary to carry out according to its use requirements and different properties. When picked.

Yes, all welded.

Which specification is it? On what basis?

Dear, the specification is the national standard, based on the welding worker training operation specification.

What is the basis for requiring all welding?

Welding worker training operation specifications. Which one?

Kiss, according to the national standard, the national standard welding specifications.

Welding worker training operation specifications. , Chapter III, Article 23. Kiss, talking about the operation specifications, and the flow chart.

First of all, the personal safety of on-site construction personnel should be put first.

1.Closed measures should be done around the prefabricated cabin, according to the relevant provisions of the certificate, there are safety protection measures, the construction personnel must be correctly equipped with labor protection supplies, and before the construction of the bottom-up, the construction of the site monitoring.

2.When some equipment in the high-voltage live area is powered off, the human body must keep a safe distance from the live part and be monitored.

3.When the construction personnel are working on the scaffolding, they should pay attention to the scaffold board must be paved, there should be no gaps and probe boards, and the materials and tools used should be put into the tool bag and carried with them.

4.When carrying out equipment debugging and other related work, on-site operators must cut off the power supply of the equipment, and do a good job of power inspection, hanging grounding wires, hanging signs and other protective measures.

5.When checking and calling electricity, the on-site operator must wear insulating gloves and use the electroscope according to the voltage level.

6.When handling and hoisting the spike Kaibei, there should be a special person to command, when the prefabricated cabin equipment is lifted, pay attention to the lifting object below the family width is strictly forbidden to stand people, 7When the equipment is positioned and installed, the fingers shall not be placed on the joint part of the equipment and the foundation, and the connecting holes and bolts of the equipment shall not be touched.

Advantages of prefabricated cabin substation: the scale of land occupation is reduced, the substation site is flexible, the factory production and prefabricated cables greatly reduce the workload of on-site construction, and the comprehensive cost is low.

Disadvantages of prefabricated cabin substation: the product puts forward higher requirements, the supplier can provide users with an overall set of solutions, due to regional restrictions, some cabin temperature can not meet the requirements, cabin noise and other problems need to be gradually solved.

1.In order to ensure the reliability of the normal operation of the equipment and the convenience of later operation and maintenance, the insulation and protection level of the cabin must be strictly required by the manufacturer.

2.The prefabricated cabin body is relatively compact, the bottom reserved cable interlayer and passage are more crowded, and the cables are relatively concentrated, so it is necessary to consider that enough Yuanchangzhao cable channels are reserved in the prefabricated cabin foundation to prevent the insulation damage of high-voltage cables caused by insufficient turning radius.

3.The prefabricated cabin has a large external size, and the builder needs to urge the supplier to plan the delivery route in advance and go through the overrun procedures related to road transportation in advance.

4.The factory production of prefabricated cabins is carried out at the same time as the on-site civil foundation construction, and the positioning height difference of the civil foundation and embedded parts should be strictly in accordance with the requirements of the implementation plan to avoid large deviations in the later installation.

1.Fire resistance: The prefabricated bulkhead is a double-layer steel plate, and the interior is filled with fireproof materials, and the cabin wall panel ensures the lower performance when the interior or exterior is on fire, and the water is fire-resistant for more than 3 hours, and the cabin shell has integrity and fire resistance within 3 hours.

2.Anti-corrosion performance: The anti-corrosion treatment of the prefabricated cabin follows the ISO 12944 standard of "Corrosion Protection of Steel Structure by Pigment and Varnish Protective Paint System", and adopts multiple anti-corrosion processes, including pre-treatment, zinc layer, intermediate layer, surface layer and other multiple treatment processes, and the total thickness of the paint layer is not less than 200 m, so as to ensure that the cabin reaches the anti-corrosion level of 30 years without rust in the C4 environment.

3.Diversity of solutions: The prefabricated cabin is a customized product, and the design can be based on the different requirements of the internal equipment, with different access doors, inlet and outlet line openings, etc., and various solutions can meet the different needs of users.

4.Long operating life: The prefabricated cabin has a high-strength verge structure, a high level of fire and thermal insulation performance, and good corrosion resistance, and the operating life level is designed according to the level of more than 30 years, and the service life can reach 60 years in the case of simple maintenance.

5.Convenient expansion in the later stage: The prefabricated cabin is a customized product, which can reserve different equipment imports and exits according to the requirements of the expansion of the internal equipment, and the top cover can be removed separately to facilitate the installation of large equipment in the later stage.

Prefabricated cabins for equipment at one timeIt is a kind of prefabricated power cabin, which includes all the equipment in the process of power transmission and distribution, including generators (motors), transformers, circuit breakers, isolation switches, automatic switches, contactors, knife switches, busbars, transmission lines, power cables, reactors, etc. The transformer power cabin is a subordinate classification of the prefabricated cabin of primary equipment.

Tengda electrical primary equipment power prefabricated cabin.

Compared to box-type substationsPrefabricated cabins for equipment at one timeAlthough the overall structure is more modular and intelligent equipment, although it is larger than the box-type substation, the overall structure arrangement and the intelligent management and control system of the equipment in the cabin will be safer and more stable than the box-type substation; The box-type substation is relatively compact as a whole, and the inside of the box is arranged in a certain way, and the controllability is relatively low.

The power prefabricated cabin is a pre-installed substation transmission device, also known as a containerized pre-assembled substation, which is a relatively intelligent electrical equipment at the current stage of power equipment.

Electric prefabricated cabins.

Ordinary substationSubstation refers to the place where voltage and current are converted, electric energy is accepted and distributed in the power system.

The prefabricated power cabin contains equipment for measuring, monitoring, controlling and protecting the operating conditions of primary equipment and systems, which is mainly composed of relay protection devices, automatic devices, measurement and control devices, metering devices, and automation systems, and the equipment has a relatively high degree of integration The box is displayed as a container-type substation, which covers a relatively small area and can be managed unmanned.

The ordinary substation covers a relatively large area, the overall equipment is relatively comprehensive, and there are professional power equipment maintenance personnel for management.

There are many types of prefabricated cabins for electrical equipment, and we can determine the careful division of prefabricated electrical cabins according to their different ways.

1. According to the environment: photovoltaic prefabricated cabin, wind power prefabricated cabin, etc.

2 According to the voltage division: 10kv prefabricated cabin, 30kv prefabricated cabin, 80kv prefabricated cabin, 110kv prefabricated cabin, etc.

3. According to the type of equipment: primary equipment prefabricated cabin, secondary equipment prefabricated cabin, 4. According to different characteristics, it is divided into: GIS prefabricated cabin, SVG prefabricated cabin, grounding transformer prefabricated cabin, etc.