ATEX assembly certification & EN 60079-14 1

[Fran67]

Hello everybody,

I have a question for an expert of the ATEX certification and associated 2014/34/UE declaration of conformity:

If you are a manufacturer of an equipment as a cable gland, a junction box...etc, for installation in ATEX zone in Europe, you have to provide a declaration of conformity according to 2014/34/UE by applying harmonized standards as EN 60079-0...etc -> it is a clear process for me

But if you supply an apparatus which is an assembly of some Ex components, for example an "actuated valve" (positioner, limit switch...etc), or a "package" consisting of some Ex components installed on a common skid/baseplate (including cable tray, cables..etc), what is the process?

1) Do you have to supply a declaration of conformity and certificate for each sub-component only and not the entire package? It sounds no good because you have to guarantee the good integration of the sub-components: choice of cables, length, cable trays, gland, effects of external conditions....etc
2) Do you have to supply a declaration for the complete package? If yes, using what harmonized standard can you declare the conformity with 2014/34/UE? I know only one standard which could be used: EN 60079-14, but it is not an european harmonized standard. Can you supply a declaration of conformity of the assembly according to non-harmonized standard?

And according to the best way 1) or 2), is a "Ex" marking required on the package name plate?

Thank you
F

 

[Gr8blu]

If the scope of supply is the component (and you're just re-selling, not manufacturing or including it in a larger assembly) - the component should arrive with the proper paperwork. All you need to do is pass it along.

If the scope is to create an assembly (by mating pre-cleared parts and/or non-cleared parts), then you have to include the paperwork from the appropriate "pre-cleared" parts as individual pieces. AND you have to then certify the entire larger assembly (however you go about that).

Unless you're prepared to go the whole way to ensure Ex compliance for the assembly (with all the required RE testing AS AN ASSEMBLY), you cannot declare the ASSMEBLY to be Ex compliant - even if it contains Ex-compliant subcomponents. For example - maybe you install a diaphragm valve horizontally instead of vertically - and it does not work as intended.

Converting energy to motion for more than half a century