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NOTE: This is an unformatted excerpt from our online fire protection training library.

Zone Classification

Zone Wiring Methods

Zone 2

Any of the wiring methods permitted for Class I, Zone 1 areas are also permitted in Class I, Zone 2 areas. In addition, the following methods may be used:
Type MC (shown here), Type MV, and Type TC cables Type ITC cable Type PLTC cable Busways or wireways that are enclosed and gasketed. For nonincendive field wiring, any wiring method permitted for an unclassified area is permitted in a Zone 2 area. For flexibility, the methods permitted for Zone 1 areas are permitted, as well as flexible conduits with listed fittings.


Examples of Type MC cable. (Courtesy of AFC Cable Systems, Inc.)

NOTE: This is an unformatted excerpt from our online fire protection training library.

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