All questions and answers are based on the 2011 NEC. Q. What wiring methods does the NEC permit in a Class I, Div. 2 location? A. Only the following wiring methods are permitted within a Class I, Div.

Nilfisk delivers a full line of industrial vacuums designed to meet NFPA 652 housekeeping requirements for collecting combustible dust in Class I, Group D and Class II, Groups E, F & G or ...

CARLO GAVAZZI is proud to announce the launch of DUB72, a double under voltage monitoring relay that is approved for use in Class I Division 2 hazardous locations. This relay can be used to help ...

Article 501 provides the requirements for Class I locations, such as the refinery shown in Photo 1. In the May issue, we described the Division system outlined in the NEC, which further breaks down ...