Is there any difference if it comes from an Ex repair facility or from manufacturer itself?

en/iec 60079-19 says not any difference. Under IEC ist does even mean it shall be certified accordingly by a 3rd party (IECEx CB). Under ATEX the way to go is much simpler.

All 3 conditions shall be met:

– audited QMS based on ISO 9001

– proper tools

– competent personnel

Note: most of the cases this is the reason why manufacturers better deliver a new product as full replacement than do repair for the same.

Keep up good work!


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