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Joined: Jan 2005
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any comments on connections to outside skid mount pump on classification and wiring methods?
Thanx Denny
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Joined: Nov 2000
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Denny, Diesel fuel is not a flammable liquid (it is combustible) and the diesel fuel handling area is not a classified area. Don
Don(resqcapt19)
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Joined: Nov 2004
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just installed one. inspector told us to explosion proof everything within 10' of the tank all the way around. if it would have been gasoline it would have been a bigger radius.
Scott
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Joined: Mar 2003
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Denny You have to make sure the conduit or conduits feeding the Diesel Skid do not pass thur a classified area. If they do then they require to be treated as classified . This is done a lot where theres both Gas and Diesel pumps in the same area.
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Diesel fuel is not a flammable liquid Indeed. I have a friend who is a retired trucker and he tells of the time that some manager at a depot balled at him to put a cigarette out while he was pumping diesel into the truck. He said he just threw the butt into the diesel tank and you've never seen somebody run for cover so fast! Guess he proved the point though!
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514.3 Classification of Locations. (A) Unclassified Locations. Where the authority having jurisdiction can satisfactorily determine that flammable liquids having a flash point below 38°C (100°F), such as gasoline, will not be handled, such location shall not be required to be classified. Diesel has a flash point above 100°F and therefore the area is not required to be classified. Don
Don(resqcapt19)
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You have to make sure the conduit or conduits feeding the Diesel Skid do not pass thur a classified area. If they do then they require to be treated as classified . That would only require that the conduits have seals at the boundries. It would not require the use of explosionproof wiring methods at the diesel dispensing area. Don
Don(resqcapt19)
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That would only require that the conduits have seals at the boundries. It would not require the use of explosionproof wiring methods at the diesel dispensing area.
This is true although if on the same concrete island as a gas pump I treat them the same no matter the distance apart. Fuel oil generally has a flash point above 125 f I believe.
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Thanks for the quick response guys....
This was my first post on this site !!
I used to watch the forum that R Keis has but there is so much more info on this one and seems less bickering too... Again thanks..
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Joined: Nov 2000
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This is true although if on the same concrete island as a gas pump I treat them the same no matter the distance apart. If they are close to each other the diesel dispenser may fall within the classified area for the gas dispenser and if so, then the electrical equipment within the classified area must meet the classification. Don
Don(resqcapt19)
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