Remote fuel tanks

[klarenj2003]

View attachment Haz.PDF Can you please help me with wiring methods of the following attachment. Hazardous location ?

Building #1 is the power source from panel inside

Building #2 Natural vented with a 500 gallon diesel tank and 250 gallon Gasoline tank

The 2 buildings are 4' apart

The conduit is underground coming up on the outside of each building

Building #2 is on a floating slab, does it need a expansion joint?



What points do I need sealoffs with heights, distances, code sections

 

[petersonra]

I don't think you have given us enough information for us to be able to help you all that much. As for it being a hazardous location, presumably you mean classified. Hopefully some qualified person has made that determination already or should have. It is not up to the field electrician to make such a determination in most cases.

It's not clear if this qualifies as a fuel dispensing location. If it does there is a special section of the code that covers such locations. I forget what article it is but it is 500 something. If it is a fuel dispensing location there are other requirements to that you have to meet. The code will tell you what kind of wiring methods are acceptable as well.

 

[rbalex]

Can you please help me with wiring methods of the following attachment. Hazardous location ?​

​

Building #1 is the power source from panel inside
​

Building #2 Natural vented with a 500 gallon diesel tank and 250 gallon Gasoline tank
​

The 2 buildings are 4' apart
​

The conduit is underground coming up on the outside of each building
​

Building #2 is on a floating slab, does it need a expansion joint?
​

​

What points do I need sealoffs with heights, distances, code sections
​

​

Your basic reference will be Article 515. As Bob (petersonra) pointed out, if fuel dispensing is involved, Article 514 will also be a reference. Both Articles are fairly clear about classification. As Bob also pointed out classification should have already been documented before you even started. [See Section 500.4(A)]

Wiring methods and sealing (except as altered by Articles 514 and 515) are still per Sections 501.10 and 15.