ATEX self certified Category 3 vacuum cleaners for use in Zone 22
In April 2011 the IEC TC31 Chairman's Advisory Group “Equipment for explosive atmospheres” took the following resolution
“TC 31 will…/… include text in IEC 60079-14 informing users that, contrary to the requirements of IEC 60335-2-69, Annex CC, vacuum cleaners that are identified for use in Zone 22, are NOT suitable for use in explosive dust atmospheres.”
Users have to be informed that ATEX Category 3 vacuum cleaners available on the market cannot be used to recover safely combustible dusts and flammable material.
The users must validate with the manufacturer the applications for which the vacuum cleaners are designed for.
The manufacturer of the vacuum cleaner must clearly state in the operation manual the applications for which the equipment is designed for.