area classification of roadways

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xoxota

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I have a questions regarding the classification of roadways within a refinery. Please read on!

Area classification was done for a specific area in a refinery.

NFPA 497 was used to determine the extent of the area classification. Due to large pressures and volumes of the product stream, the original 50'-0" radius x 25'-0" high area and an additional 50'-0" x 2'-0" high area was required to depict the extent of the Class l, Division 2, Groups C & D area.

The additional requirement extends across access roadways within the refinery.

I have been looking for an article that explains that self powered vehicles (both gas powered or electric) are allowed.

Can you please direct me to such an article, if available?

Thank you in advance.

Regards!

Rod Sa
 
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