DocumentCode
8142
Title
NEC Design Compliance, System Protection, and Arc Flash Hazard
Author
Simpson, Ronald H.
Author_Institution
GE Energy, Alpharetta, GA, USA
Volume
49
Issue
4
fYear
2013
fDate
July-Aug. 2013
Firstpage
1928
Lastpage
1936
Abstract
The National Electric Code (NEC) specifies limits on settings of transformer overcurrent protective devices that directly affect system protection. However, compliance with NEC design guidelines does not assure adequate system protection. The result can be zones of poor or nonexistent protection and “Extreme Danger” arc flash hazard (AFH) ratings. This paper discusses the existing system protection in a large paper mill and makes recommendations for improving that protection and lowering AFH ratings.
Keywords
overcurrent protection; power transformer protection; NEC design compliance; National Electric Code; arc flash hazard; extreme danger; system protection; transformer overcurrent protective devices; Arc flash hazard (AFH); National Electric Code (NEC) design guidelines; system protection;
fLanguage
English
Journal_Title
Industry Applications, IEEE Transactions on
Publisher
ieee
ISSN
0093-9994
Type
jour
DOI
10.1109/TIA.2013.2256768
Filename
6494287
Link To Document