Dust explosion prevention issues
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For instrument selection in Zone 21, the protection rating is IP6X, but there is no dust explosion protection certification – is that acceptable? If possible, are there any relevant standards or specifications that can address the experts’ concerns?
No. IP6X only indicates that the device is dust-proof, but it does not mean it has explosion-proof properties. Dust explosion prevention requires compliance with specific explosion protection standards and certifications, such as **Standard GB 12476.1 \"Use of electrical equipment in explosive dust atmospheres – Part 1: General requirements\" and others. Without a dust explosion protection certification, it cannot be used in environments where explosive dust may be present. .
What was said on the 2nd floor is correct; IP6X is merely a protection rating for the device’s enclosure against dust and water. Electrical equipment used in explosive dust environments must have an appropriate dust explosion protection rating, and specific explosion prevention requirements are outlined in the \"Code for Design of Electrical Installations in Explosive Atmospheres\" GB 50058-2014.
No, it’s the same in our acetylene and calcium carbide workshop before – there must be dust explosion prevention labels!