Who is he / she? First a designer shall be a designer
Whenever you get delivered with a solution using Ex v, it can only be considered as an installation, assembly, project (other definitions I leave to you), and there shall be a design, installation, commissioning, Ex inspection, etc. all similar to normal project conditions.
Where it belongs to? Fire protection… Worksafety… Electrical, mechanical discipline…? Interesting topic
Definetely Ex with some pre-cautions. Risk assessment and hazardous area classification shall be first in place.
H2 units shall be considered as per assembly. All electrical and non.electrical Ex topics shall be taken into account.
assembly of Ex Equipment(s) results in an assembly that creates a need for additional assessment that is not already completely covered by the
individual equipment certificates.
EPD or any Ex compliance report has a significant impact for Hazop / FMEA meetings. In process safety related meetings, the Ex equipment compliance should always be questioned.