23 Year Industrial Explosion-Proof Manufacturer

Explosion-ProofZone20CorrespondstotheExplosion-ProofLevel|TechnicalSpecifications

Technical Specifications

Explosion-Proof Zone 20 Corresponds to the Explosion-Proof Level

If an area requires the installation of dust explosion-proof electrical devices, the explosion-proof standards for equipment in Zone 20 must exceed those required for Zones 21 and 22.

Zone 20Zone 21Zone 22
An explosive environment in the air that continuously appears in the form of combustible dust clouds, exists for a long time or frequently.Places where explosive environments in the air may appear or occasionally appear in the form of combustible dust clouds during normal operation.In the normal operation process, an explosive environment in the air in the form of combustible dust clouds is impossible to occur in places where the instrument exists for a short period of time.

Specifically, in Zone 20, only intrinsically safe or encapsulated devices are permissible, while flameproof devices are not allowed.

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