Explosion proof certification refers to the use of equipment to determine complianceExplosion proof standardThe work of conducting requirements, type tests, and routine tests for adaptation, and issuing relevant certificates of conformity. The certificate can be for Ex devices or Ex components.

1、 Which places require explosion-proof products?

1. Automatic gas station

2. Refining and gas storage tanks

3. Chemical plant

4. Printing, papermaking, and textile factories

5. Aircraft refueling and hangar

6. Surface coating factory

7. Underground coal mine

8. Sewage treatment plant

9. Grain processing, storage, and handling (flour processing plant)

10. Wood processing plant

11. Sugar industry

12. Light metal processing, especially prone to metal dust and particles

2、 Classification of electrical equipment for explosive environments

Class I: Methane Environment in Coal Mines

Class II: Factory gas environment

IIA: The representative gas is propane

IIB: Representative gas is ethylene

IIC: The representative gas is hydrogen gas

Class III: Dust environment

IIIA: Flammable flying fluff

IIIB: non-conductive dust

IIIC: Conductive dust

3、 Protection level of electrical equipment

1. Coal mine: EPL Ma，EPL Mb

2. Gas: EPL Ga，EPL Gb，EPL Gc，

3. Dust: EPL Da，EPL Db，EPL Dc

4、 Common explosion-proof types

5、 Correspondence between electrical equipment and application sites

6、 Temperature group

7、 The advantages of obtaining an explosion-proof certificate at Zhongnuo Testing

ShenzhenZhongnuo TestingWith over ten years of experience in explosion-proof certification services, we provide staffing at a reasonable costExplosion proof certificationServices for required enterprise standards and other related materials. We specialize in the design, research and development, modification, and sample production of explosion-proof electrical products such as factory explosion-proof, mining explosion-proof, marine explosion-proof, and dust explosion-proof. Our cooperation is flexible and can be contracted as a whole or jointly designed with customers.