Types of Explosion Protection

Explosion protection methods are designed to either prevent explosions from occurring or to minimize their impact if they do.

Intrinsic Safety (Ex i, EN 60079-11)

Limits electrical and thermal energy in equipment so it cannot ignite a hazardous atmosphere.

Increased Safety (Ex e, EN 60079-7)

Prevents sparks and hot surfaces in electrical equipment by design improvements.

Pressurization or Purging (Ex p, EN 60079-2)

Keeps flammable gases or dusts out of equipment by maintaining a protective pressure using clean air or inert gas.

Non-sparking / Non-incendive (Ex n, EN 60079-15)

Equipment is designed to not produce sparks or heat under normal operation.

Flameproof / Explosion-proof Enclosure (Ex d, EN 60079-1)

Contains the explosion inside the enclosure and prevents flames or hot gases from escaping.

Oil Immersion (Ex o, EN 60079-6)

Parts immersed in oil to isolate from explosive atmosphere.

Powder filing (Ex q, EN 60079-5)

Prevents transmission of explosion outside.

Protection “tD” (Ex t, EN 60079-31)

Dust explosion proof.

Explosion Protection (Mitigation)

Flameproof / Explosion-proof Enclosure (Ex d, EN60079-1)

Limits electrical and thermal energy in equipment so it cannot ignite a hazardous atmosphere.

Explosion Venting

Limits electrical and thermal energy in equipment so it cannot ignite a hazardous atmosphere.

Explosion Suppression

Limits electrical and thermal energy in equipment so it cannot ignite a hazardous atmosphere.

Explosion Isolation

It prevents an explosion from spreading to other connected equipment or areas.