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Considerations in Applying Arc-Resistant Low Voltage Motor Control Centers in Refining Environments

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2 Author(s)
Rachel M. Bugaris ; Rockwell Automation, Milwaukee, WI, USA ; Nicholas J. Weber

Arc-resistant equipment is becoming increasingly common in North America and in the petrochemical industry. Traditionally, low voltage motor control centers (LVMCCs) designed to National Electrical Manufacturers Association (NEMA) standards have not been addressed in arc resistant testing guides. This paper describes how arc resistant principles can be applied to the LVMCC, which is constructed according to Underwriters Laboratory 845 (i.e., the NEMA ICS 18 600V class of equipment). A brief overview and history of applicable arc resistant testing guides, specific considerations for adapting internal arcing fault test procedures to LVMCCs, and considerations for specifying and installing arc-resistant LVMCCs in a refining environment are discussed.

Published in:

IEEE Transactions on Industry Applications  (Volume:49 ,  Issue: 2 )