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Cable and cabling systems in hazardous locations
Author(s) -
Buschart Richard J.
Publication year - 2001
Publication title -
process safety progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.378
H-Index - 40
eISSN - 1547-5913
pISSN - 1066-8527
DOI - 10.1002/prs.680200111
Subject(s) - flammable liquid , operability , hazardous waste , engineering , reliability (semiconductor) , process (computing) , reliability engineering , intrinsic safety , process safety , forensic engineering , waste management , chemical plant , computer science , environmental engineering , power (physics) , physics , quantum mechanics , operating system
Cabling and wiring are critical to the safety, reliability, and operability of chemical process facilities, especially in Hazardous (Classified) Locations. The National Electrical Code (NEC), Article 500, provides the basic rules for electrical installations in locations where flammable gases or vapors may be present. There have been revolutionary changes in Article 500 in recent NEC Code Cycles. The European (or zone system) offers the option of meeting international standards, and offers significant advantages in chemical plants. Some chemical (and petroleum) companies have been using open wiring, drip loops, cabling systems instead of conduit. Cable systems are also very flexible and offer significant maintenance advantages.