This presentation will review the NEC Articles 500 through 503 on Hazardous Locations for Class, Division and Groups. It will also briefly cover Article 505 and compare this IEC "Zone" approach to the NEC. Because conduit seals have proven to be one of the biggest problem areas in hazardous applications they will get special attention. And because of the resurgence of Switchracks as an alternative to dedicated non-hazardous buildings, they will also be discussed in depth with IEEE Paper No. PCIC 2001-22 as the reference. Examples of the design requirements to meet the various NEC and IEC hazardous ratings will be displayed as these requirements are discussed and compared.
Derek Dibble is the Midwest Specification Engineer for EGS divisions O-Z/GEDNEY, Applelton and SOLA/HEVI-DUTY. Derek has a EE degree from the University of Wisconsin, Milwaukee and has been in the industrial controls industry for 28 years. He has been a product specialist for Emerson, Westinghouse and local distribution.
| Location | Time | ||
|---|---|---|---|
| Chicago Bar Association | 11:30 AM | Social | |
| 321 South Plymouth Court | 12:00 PM | Lunch (optional) | |
| (near Jackson & Dearborn) | 12:15 PM | Presentation | |
| Chicago, IL 60604 | 1:00 PM | Adjourn | |
| 312-554-2000 |