Is the control cabinet in Zone A equipped with positive pressure ventilation? Do the components inside it still need to be explosion-proof? ?

2017-09-30View Original

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Is the control cabinet in Zone A equipped with positive pressure ventilation? Do the components inside it still need to be explosion-proof? ?

Reply #22017-09-30

Which design firm do you work for?

Reply #32017-10-01

The control cabinet is now under positive pressure ventilation, preventing explosive gases/dust from entering it; therefore, ordinary components can be used for the internal components as well.

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