Wiring Methods in Hazardous Locations:

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rattus

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I was taught that the object is to contain an explosion within the conduit and within the glass shields over the light bulbs without setting off a fire or explosion on the outside. Has the approach changed?
 
Re: Wiring Methods in Hazardous Locations:

If you also include enclosures other than conduits it?s still the dominant protection technique (explosionproof) in Class I, Division 1.

There are several other recognized Class I techniques. (500.7 for ?Divisions? and 505.8 for ?Zones?) A few, such as purging or intrinsic safety, are also recognized Class I, Division 1.
 
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