Is explosion protection required around pipes carrying Class A substances? ? ? Urgent! Urgent! Urgent! ! !
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For example, the methanol storage area is explosion-proof; methanol is transported through pipes to a non-explosion-proof area. Does that area need to be explosion-proof as well? Or does this pipe need to be made explosion-proof? Is there a legal basis for this? Thank you so much, hero!
If there are leakage points, then an explosion-proof zone must be designated, and all the instruments and electrical equipment involved must be explosion-proof. So how is this scope determined? ? ? Normal pipes do not leak; leaks may only occur at the valve flanges or during maintenance. Is there any standard that specifies this? ?
I’ve seen a zoning standard that uses the leakage point as the center, with distances of 4.5 meters and 15 meters specified; I’m not exactly sure about the details
Design Code for Electrical Installations in Explosive Hazardous Environments GB 50058-2014
Parts where leaks may occur, such as valves and flanges
Facilities that use or produce Class A substances can be classified as Class A facilities. Is there an issue with the assessment of the fire hazard in your non-explosion-proof areas?
First, let me ask: where does your methanol pass through that is not a explosion-proof area? Is it to enter the pipe gallery? Or go to another area? If entering another area, there needs to be an explanation for it. This thing cannot traverse unrelated areas.
If the methanol storage area is explosion-proof, and the methanol is transported via pipes to a non-explosion-proof area, then those pipes do not need to be explosion-proof. GB 50160, GB 50058, \"Pressure Pipeline Technology\" compiled by Yue Jincai from Sinopec, \"Pressure Pipeline Design and Engineering Examples\" compiled by Song Keké, GB/T20801 compiled by Professor Ying Daoyan