How to set the positive pressure in the workshop’s dedicated power distribution room within the explosion-proof area
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The workshop’s power distribution room is located within an explosion-proof area, and a positive pressure system is planned to be installed. How can positive pressure be ensured? What should be the ventilation volume, and what should be the ventilation method? Thank you.
My understanding is that specialized air ducts are used to actively supply clean air free of flammable and explosive gases into the electrical distribution room, thereby preventing flammable and explosive gases in the explosion-proof area from creating an explosive atmosphere within the distribution room
Refer to GB3836.17 and other relevant standards
I’ve never seen a substation located in an explosion zone before. The ventilation department of the design institute must calculate the required air volume and wind speed based on the size of the distribution room, so as to prevent explosion accidents when components inside the explosion-proof distribution room generate sparks.