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AssuredElectrical, Master Electrician
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Experience:  Contractor-42+ Years in the ElectricalTrade
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What are the required setbacks air and vacuum machine from

Customer Question

What are the required setbacks for an air and vacuum machine from gas pumps and venting pipes at a gas station? Where can I get reference material? I am pretty sure NEC Article 514 covers it, but I cannot find specific guidelines. Thank you for the help.
Submitted: 11 months ago.
Category: Electrical
Expert:  AssuredElectrical replied 11 months ago.

Welcome. My name is ***** ***** would be glad to assist.

There are no specifics for the air/vacuum machine.

The requirements for the gasoline dispensing determine how far away anything else must be to get out of the Zone or else, the other equipment must meet the same standards and hazardous location installation.

514.4 Wiring and Equipment Installed in Class I Locations
All electrical equipment and wiring installed in Class I locations
as classified in 514.3 shall comply with the applicable
provisions of Article 501.

TABLE 514.3(B)(1) Class I Locations — Motor Fuel Dispensing Facilities

Outdoor
Up to 450 mm (18 in.) above grade level, extending 6 m (20 ft)
horizontally in all directions from dispenser enclosure

Customer: replied 11 months ago.
Thank you for the quick response. This will help.Vic
Expert:  AssuredElectrical replied 11 months ago.

Ok, very good Vic, glad to be of service.

Usually place them 20 ft away and all is easy and well

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