Can the electrical components in the explosion proof box not be explosion proof?

Flameproof enclosure: This is a rugged enclosure that is able to withstand the pressure generated inside** while preventing electrical sparks or flames from escaping from the inside. Terminal Block:

These are terminals used to connect power and loads, capable of withstanding vibrations and shocks during operation. Operating mechanism: This is the mechanism that controls the power supply to be turned on and off, and can be operated manually or automatically.

Cable entry device: This is a device used to introduce the cable to prevent the cable from being damaged or broken. Filters:

This is a device that is able to filter out harmonics and inrush currents in the power line to reduce damage to electrical equipment.

It depends on what type of explosion-proof box it is, the commonly used flameproof, positive voltage, and the electrical components inside.

It's all ordinary. This is generally the case in our country, and the cost is low. If you choose explosion-proof circuit breakers and contactors.

Good ones are very expensive) and so on, under normal circumstances, there is no need to add explosion-proof boxes of explosion-proof type, only use explosion-proof boxes with increased security, and the cost is high. Generally, we don't use it like this, but foreigners may use it. National Explosion-proof Electrical Supervision, Inspection and Testing Center.

Ordinary electrical components can be installed in the flameproof and positive pressure boxes, and ordinary electrical components cannot be installed in other explosion-proof explosion-proof boxes.

From Nanyang Zhongtian explosion-proof.

Yes, but your explosion box is overkill.

Explosion-proof distribution box.

Pharmaceutical, knitting factories, food processing factories, etc. There will be flammable and explosive gas mixtures or smoke and dust overflow in the company's manufacturing work, and when the flammable and explosive gas touches the ordinary lighting distribution box, it is easy to cause the occurrence of ****, endangering the life safety of manufacturing and employees, so it is necessary to install explosion-proof electrical equipment in this place.

How to correctly operate and maintain the explosion-proof distribution box to ensure the safety factor?

1. In terms of the occurrence of first-class control, the stability of the explosion-proof distribution box machinery and equipment is very important: in actual operation, in order to avoid the occurrence of first-class and prevent damage to the production equipment, protective maintenance should be carried out. When carrying out overhauls, components produced from materials that meet the standards need to be installed in the proper way.

The maintenance procedure process itself must not lead to fire accidents and occurrences**.

2. The adverse effects of this change on all equipment should be evaluated: subtle changes on the surface are likely to lead to unimaginable and impermissible deflagration risks. In a French chemical company, a temporary bypass with a diameter of 500 mm was installed in order to better replace the leaking reactor.

Folded pipeline, because of the safety accident of this pipeline, led to the occurrence of the first disaster.

3. The wiring of the explosion-proof distribution box is neat, and there is no twisting condition. The transmission line is closely connected, does not hurt the copper wire, continues to strand, the cross-sectional area of the wire pressed on both sides of the screw under the sealing ring is the same, the transmission line connection on the same terminal is not more than 2, the anti-loose washer and other parts are complete, and the transmission line is closely connected. In the lighting box, the neutral line (N) and the protection zone line (PE line) are set respectively.

The busbar, the neutral line and the protective ground wire are discharged through the bus. Vertical angle of explosion-proof distribution box: shell height below 50cm, allowable error; The height of the shell is more than 50cm, and the allowable error is 3mm.

4. The button posture in the explosion-proof distribution box is flexible and reliable, and it contains a leakage protector.

The control loop: the current amount of leakage protection switch does not exceed 30mA, and the action time shall not exceed. The alloy structure of the explosion-proof distribution box must be reliable for the grounding device (PE) or zero connection (PEN); Openable doors equipped with electrical appliances are connected to the terminals of the structure using bare braided copper wires and are marked.

Have a sense of safety precautions at work and follow the operating procedures.

5. The explosion-proof distribution box needs to be waterproof, rainproof and anti-fouling: explosion-proof distribution box and switch box.

The electrical appliances inside must be reliable and intact, and it is forbidden to apply damaged, but not the explosion-proof distribution box of electrical appliances. It should be set according to the classification of the total explosion-proof distribution box - sub-explosion-proof distribution box - switch box, and the secondary leakage protection should be implemented. The inlet and outlet lines of the explosion-proof distribution box and switch box shall not bear the action of external force, and it is forbidden to contact with the sharp fracture surface of the metal and strong corrosive substances.

There is a safe distance between the explosion-proof electrical equipment in the internal structure. The service life of the rubber outside the cable will change under different application conditions, so if you see an abnormality, you can replace it if you want to change it, and you should overhaul it.

Explosion-proof distribution box is a type of distribution box with explosion-proof performance. There are mainly explosion-proof lighting distribution boxes, explosion-proof power distribution boxes, explosion-proof and anti-corrosion distribution boxes, etc. BXM(D) explosion-proof distribution box is suitable for power wiring in flammable and explosive places such as petrochemical plants, petroleum platforms, chemicals, pharmaceuticals, coal, smelting, shipbuilding, military industry, textiles, etc.

Zone 1 and Zone 2 ** gas environment. 20, 21 and 22 areas of combustible dust environment for details, you can go to the official website of Ruipai for consultation.

As the name suggests, it is an electrical product used in dangerous places to prevent itself from becoming a ignition source to ignite flammable and explosive products, mainly explosion-proof lighting distribution box, explosion-proof power distribution box, explosion-proof and anti-corrosion distribution box, etc.

There are different explosion-proof levels of explosion-proof distribution boxes, which are selected according to the required explosion-proof grades, not just to see the cheap, but to meet the explosion-proof level of the place of use.

Hello, the materials of the explosion-proof distribution box are aluminum alloy, stainless steel, carbon steel and engineering plastics.

Stainless steel explosion-proof distribution box can be anti-corrosion.

The ordinary distribution box is made of iron, which is cheap and suitable for places without explosion-proof requirements; The explosion-proof distribution box is processed after casting or steel plate welding, which has high strength, is more expensive than ordinary explosion-proof box, and is suitable for dangerous combustible gas places and places.

Dongshan Electric provides control box, which mainly includes a lighting distribution box for controlling the lighting system and a power box for controlling the power system. Most of these products are combined, up to 12 circuits can be controlled, and most of their shells are made of cast aluminum alloy materials, some of them are welded steel plates, and a small part of them are insulating material shells. Its interior is mainly composed of circuit breakers, contactors, and thermal relays.

Transfer switches, signal lights, buttons and other components are composed, and the manufacturer can also choose to equip them according to the needs of users. Explosion-proof up to CT6.

There are many subdivision names of explosion-proof boxes, generally explosion-proof distribution boxes, explosion-proof control boxes, explosion-proof distribution cabinets, etc., which can be called explosion-proof boxes.

All other materials are the same, only with an explosion-proof function, which reduces the danger of some harsh environments.

It conforms to the national standards for electrical explosion-proof, and has passed the qualified third-party explosion-proof inspection and certification authorized by the state, and can be used in dangerous places where flammable and explosive gases or flammability points appear.

From Nanyang Zhongtian explosion-proof.

There are two kinds: one is the flameproof type, which uses a cast aluminum shell (to reach a certain thickness) so that even if it produces **, it can only occur in the shell.

One is flameproof + increased safety (the original "circuit breaker" is flameproof, and the shell is increased safety) The characteristics are:

1.There are high requirements for sealing, waterproof, dustproof,

2. Material requirements: anti-corrosion, anti-static, etc.

3. It can be used in harsh environments (-40+60 degrees...) highly corrosive coastal areas,)

Wait a minute...

According to the different use environment, different components will be installed in the explosion-proof distribution box, resulting in a very different role of the explosion-proof distribution box, but the conventional performance of the distribution box is still there

1. The function of the explosion-proof distribution box must first meet the electrical performance; On the other hand, to meet the explosion-proof requirements, the explosion-proof mark in the selected explosion-proof distribution box must be met.

With the rapid development of petroleum, chemical and other industries, lighting fixtures are more and more widely used in production, warehousing and rescue, and there are more and more varieties. How to prevent the occurrence of accidents in lighting fixtures has become a very important topic in the most dangerous gas places. Because lighting fixtures inevitably produce electric sparks or form a red-hot surface when working, once they meet with the first-class gas mixture at the production or rescue site, it will lead to the occurrence of ** accidents, directly endangering national property and the life safety of citizens.

Therefore, as the lighting fixtures used, its explosion-proof technical problems have long attracted people's general attention and great attention.

Explosion-proof requirements for hazardous gases in the place of use;

2. The explosion-proof distribution box is suitable for Zone 1 and Zone 2 of Class 1L Class B or Class C, T1-T4 Group or Below Levels and Groups of Hazardous Places with ** Gas Environment, and is used for controlling motors in lines with AC 50Hz and rated voltage of 220 or 380V.

Explosion-proof distribution box.

Explosion-proof distribution box.

Explosion-proof distribution box.

Starting and stopping, it can also be used to control the motor from a distance, with overload and short-circuit protection functions;

3. The explosion-proof distribution box can reasonably distribute electric energy, which is convenient for the staff to open and close the circuit; It has a high level of safety protection, which can intuitively express the conductance status of the circuit. It is easy to manage, and in the event of a failure, it is conducive to the maintenance of staff;

1. The material often used in the explosion-proof distribution box is: aluminum alloy profile. There are two key explosion-proof distribution boxes made of aluminum alloy materials, one is aluminum die-casting body, and the other is sand turning body.

According to the structure of the explosion-proof distribution box of aluminum alloy profiles, the explosion-proof distribution box is composed of an explosion-proof cavity and an increased safety cavity, which is often said to be the main inner cavity, which is used to assemble components such as isolation switches, surge protectors, AC, thermal relays, etc.; The safety chamber is also called the wiring cavity, the key control panel is used to assemble explosion-proof buttons, explosion-proof display lights, explosion-proof ammeters (ammeters), explosion-proof transfer switches, etc., the internal structure is mainly to assemble terminals, and can be punched holes in the control panel according to user needs to make the inlet port.

2. The explosion-proof distribution box can usually be welded with Q235 thick steel plate or stainless steel plate. The size of the explosion-proof distribution box welded by thick steel plate is relatively flexible, and the molded case circuit breaker with very large current can be assembled, and the explosion-proof distribution box with stainless steel plate can bear strong outdoor corrosion.

3. The third material of the explosion-proof distribution box is made of glass fiber unsaturated fat unsaturated resin, which is also known as engineering plastics. This kind of explosion-proof distribution box is resistant to strong corrosion, and it is usually called an explosion-proof and anti-corrosion distribution box.

Explosion-proof anti-corrosion distribution cabinet.

It is composed of an explosion-proof distribution box with an aluminum alloy profile and a plastic shell of the engineering project, that is, an explosion-proof box with an aluminum alloy profile in the plastic shell of the engineering project.

Aluminum alloy, steel plate welding, stainless steel, engineering plastics, etc.

Aluminum alloy, steel plate welding, stainless steel, engineering plastics, etc.

If you still have any questions, you can go to the official website of Ruipai for detailed consultation.