EEx motor designation 2

[micalbrch]

Dear Colleagues,

Electrical equipment like motors must be accordingly stamped when designed for use in an explosion proof environment. Acc. to the European code the stamp started with EEx. This standard (EN 50014) was replaced (4 years ago?) by standard EN 60079. Now the stamp starts with Ex only. The first "E" was cancelled.

Still some manufacturers stamp their new motors with EEx and the corresponding certificates and declarations show EEx, too. That does not only apply to motors but also to other electrical components like sensors, switches etc. I know that thechnically the equipment has not change and that EEx or Ex is only a formal question. But is it still allowed to stamp EEx? Or can we (as a buyer) refuse equipment which shows EEx stamp?

Thanks in advance for your feedback.

 

[wayne440]

http://www.taskomuru.gov.tr/file/alsz/BASEEFA_EN_50014_vs_IEC_60079_0.pdf

The link above might be helpful. If I specified EN 60079 compliant equipment, that is what I would expect to pay for. Whether or not the actual equipment changes is not the issue, the issue is if a vendor will not or cannot certify the item to my specs before the sale, what kind of support will I get afterwards?

 

[LiteYear]

I'd be tempted to defer to the word of the certificate of conformity, rather than the standard. If the certificate is satisfactory, and it says the marking needs to be "EEx", then that's what I would require.

When we certify our IECEx equipment, the certificate we receive clearly states the marking that the product requires. Following the certificate seems to me to be the most future-proof way to ensure one is compliant.

 

[micalbrch]

Thank you both for your reply. But probably my question was not clear enough. If a standard was replaced and is no longer valid, will it still be allowed to use it? If there are still parts in stock with the old stamp - o.k. But the standard was replaced 4 years ago after a 3 year transition period. So, I can assume that we receive new parts. Is it allowable to stamp those parts acc. to a replaced standard? I know that this looks like a legal question (perhaps it is one) but it is not my intention to take legal action towards anybody. I just want to know if there is an official document or a supplement to the new standard which allows stamping acc. to the old standard.