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Ex Fume Hoods and Power sockets

Ex Fume Hoods and Power sockets

Ex Fume Hoods and Power sockets

Hi Folks,
I'm specifying a Ex fumehood for a client who will be handling sizeable quantities of flammables in fume hood. It will be Division 2/Zone 2 internally.
In relation to electrical equipment located inside the fumehood, clearly this has to be Ex rated.
My query surrounds the electrical sockets for power supply to this equipment. These will be located on the outside fascia on left and right hand side. My question is .. do the sockets also need to be Ex rated or would normal sockets be sufficient? One part of me thinks normal sockets might suffice given that the sockets themselves are in a safe area. But I have also read that the whole electrical circuit that needs to be considered as a single entity to comply with Ex requirements. Any guidance or thoughts would be really appreciated!

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