Explosion-proof motor is a kind of motor that does not produce electric spark in operation. It is suitable for use in flammable and explosive places. It is widely used in coal, petroleum, natural gas, petrochemical and chemical industry. So what factors do you need to consider when using explosion-proof motors? Do you know?

　　Explosion-proof motor classification:

　　1. According to the principle of motor

　　Can be divided into explosion-proof asynchronous motor, explosion-proof synchronous motor and explosion-proof DC motor.

　　2. According to the use of places

　　It can be divided into explosion-proof motor for coal mine and explosion proof motor for factory.

　　3. According to the principle of explosion protection

　　Flameproof motor, increased safety motor, positive voltage motor, no spark motor and dust explosion proof motor.

　　4, according to the matching host

　　It can be divided into explosion-proof motor for coal mine conveyors, explosion-proof motor for coal mine winch, explosion-proof motor for rock loader, explosion-proof motor for coal mine local fan, explosion-proof motor for valve, explosion-proof motor used by fan, explosion-proof motor for ship, explosion-proof motor of lifting metallurgy, and adding anti brushless excitation synchronous motor, etc. In addition, it can also be divided according to the rated voltage, efficiency and other technical indicators, such as high voltage explosion-proof motor, high efficient explosion-proof motor, high turn difference explosion-proof motor and high starting torque proof motor.

　　Consideration factors of explosion-proof motor:

　　Explosive substances: many production sites produce certain combustible substances. About 2/3 of underground coal mines have explosive substances. In the chemical industry, more than 80% of the production workshops have explosive substances. Oxygen: the oxygen in the air is ubiquitous. Ignition source: in the production process, a large number of electrical instruments, various kinds of friction electric sparks, mechanical wear sparks, electrostatic sparks, high temperature and other unavoidable, especially when the instrument and electrical failure. Objectively, many industrial sites meet the conditions of explosion. When the mixture concentration of explosive material and oxygen is within the limit of explosion, if there is an explosion source, it will explode. Therefore, it is necessary to take explosion-proof.