ECN Forum Forums Code Related Discussion NEC & other Code issues Kerosene area Classifaction????

Class??? in Article 500??

Kerosene is not generally considered to create a classified location.

Whats its Flash Point???

Looked in 2005 NEC Handbook Page 658 (KEROSENE) is there.Flash Point 72% C. looks like Class 2 (A)or Class 1 Division Group D. ?? listed two places. Check it our .
Theres an Area with Diesel Fuel, & Kerosene.
Diesel Fuel I think NO.
Kerosene looks like yes .
Any comments ????

K-1 maybe, kerosene is a generic term, it would depend on the product. The oil company should be able to tell you flash point

Ernie:
Based on a quick read, I'm leaning to "same as diesel". If I had to make an official 'call'; I would do some additional research.

Careful here ... home oil heating units do not require any "haz loc" wiring - and kerosene / fuel oil / diesel / jet fuel are all essentially the same thing. Nor should we forget the sundry decorative oil-filled 'candles' that are actually filled with scented kerosene.

Yoopersup,
What sort of an installation is this referring to?

I know for a fact that choppers I have flown run on a variant of Kerosene and it has a flash point of about 250°C.

One other thing I do know, through experience as a FF, is that kerosene has the habit to change from a liquid to vapour very easily, about the same as propane, but not with the explosive force.

Unlike propane, the fumes from kerosene will drift upwards.

Looked it up on the net . Flash point 37-65c .
Auto Ignition Temperature 220C

Still Page 658 NEC Code Handbook info????
Class 1 division group D
Flash point 72
Class zone group IIA

Location is Storage Deisel & Kerosene.

Yoop:
Yes, I read the Handbook info & agree with you on that. There's a lot of info that has to be read regarding that table, which I have not read due to time constraints. I have not had a job with kero dispensers, so I have no 'field' quick answer for ya.

Perhaps reach out a PM to 'Walrus'...he's a service station guy.