Installing control circuits per the National Electrical Code

Author

Liggett, Danny P. ; Holub, Richard A.

Author_Institution

DuPont, Houston, TX, USA

fYear

2005

fDate

12-14 Sept. 2005

Firstpage

11

Lastpage

15

Abstract

Over the last two code cycles, changes have been made to requirements for the installation of control circuits. These changes have made the task of installing control circuits from PLC and DCS systems even more difficult than they were in the past. This paper outlines the changes and their impact. The paper makes suggestions on how to install control circuits to be in compliance with the current requirements. The paper also makes recommendations on changes to the National Electrical Code^® (NEC^®) [NFPA, 2002] that would make the requirements more easily understood and make the installations more economical without impacting the safety of the installation.

Keywords

control systems; electrical safety; programmable controllers; DCS systems; National Electrical Code; PLC systems; control circuits installation; distributed control systems; installation safety; Circuits; Communication system control; Control systems; Digital control; Distributed control; Motor drives; Programmable control; Safety; USA Councils; Voltage control; Control Circuits; NEC®; National Electrical Code;

fLanguage

English

Publisher

ieee

Conference_Titel

Petroleum and Chemical Industry Conference, 2005. Industry Applications Society 52nd Annual

ISSN

0090-3507

Print_ISBN

0-7803-9272-8

Type

conf

DOI

10.1109/PCICON.2005.1524535

Filename

1524535