Zones versus divisions: a comparative analysis of NEC articles 500 and 505 equipment and wiring methods in a petrochemical facility in the united states

Author

Stewart, David R. ; Stone, Frank M.

Author_Institution

Waldemar S. Nelson & Co. Inc., Houston, TX, USA

fYear

2002

fDate

2002

Firstpage

315

Abstract

Codes and standards now exist which allow petrochemical facilities in the United States to be classified using the Zone method of area classification. Owners, operators and designers of these facilities now have options in choosing the method of area classification and in selecting the type of equipment protection techniques and wiring methods employed. This panel discusses the results of a detailed comparison made of Division-and Zone-based wiring systems for an onshore oil and. gas production facility in the United States. Issues considered include equipment cost and availability, installation costs and maintenance and safety considerations. Conclusions and recommendations are made on a life-of-facility cost basis.

Keywords

petroleum industry; protection; safety; standards; USA; codes; division based wiring systems; equipment availability; equipment cost; installation costs; maintenance considerations; onshore gas production facility; onshore oil production facility; petrochemical facilities; protection techniques; safety considerations; standards; wiring methods; zone area classification; zone based wiring systems; Code standards; Costs; National electric code; Petrochemicals; Petroleum; Production facilities; Protection; Safety devices; Substations; Wiring;

fLanguage

English

Publisher

ieee

Conference_Titel

Petroleum and Chemical Industry Conference, 2002. Industry Applications Society 49th Annual

ISSN

0090-3507

Print_ISBN

0-7803-7384-7

Type

conf

DOI

10.1109/PCICON.2002.1045016

Filename

1045016