COMPARISON OF IEC- ANSI/NEMA
Prepared by : M McLaughlin (LOEU)
Special Recognition to: B. Hibbett (LOEU) M. Donati (HOEU)
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13-Jan-00 12-NOV-99
REV.
DATE
LORO
ISSUED FOR CORPORATE USE ISSUED FOR COMMENT REASON FOR REVISION
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BP BP CHECK
BECHTEL CORP
KGH KGH APPR REV 000
ELECTRICAL ENGINEERING HANDBOOK 3DG-E15-00002 COMPARISON OF IEC - ANSI/NEMA Page 1 of 44
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BECHTEL CORPORATION E&C CENTRAL FUNCTIONS – ENGINEERING ELECTRICAL ENGINEERING HANDBOOK COMPARISON OF IEC - ANSI/NEMA 3DG-E15-00002, Revision 000
CONTENTS
1. 2. 3. 4 PURPOSE ...................................................................................................... 5 SCOPE ........................................................................................................... 5 GENERAL ...................................................................................................... 5 ENGINEERING PRACTICES ......................................................................... 5 4.1 4.2. 4.3. 4.4. 4.5. 4.6. 4.7 4.8 4.9 4.10 5. 5.1. 5.2. 5.3. 5.4. 6. 6.1. 6.2. 6.3. 6.4. 6.5. 6.6. 6.7. 6.8. General ................................................................................................ 5 Systems Design ................................................................................... 6 One-Line Diagrams ............................................................................ 12 Bechtel Design Guides and Specifications ........................................ 13 Codes and Standards......................................................................... 13 Hazardous Area Classification ........................................................... 15 Substations ........................................................................................ 21 Switchgear and MCCs........................................................................ 22 Earthing / Grounding