Electrical Design Standard Symbols - Red-Bag
Electrical Design Standard Symbols
ID. NO.
ISSUE SHEET
1 1 of 40
DOC.NO.
BN-DS-E2
DOCUMENT NUMBERS
501-502
503 506 510 520 530 550
INDEX SYMBOLS
KEY DIAGRAMS, M. V. AND L. V. ONE LINE DIAGRAMS CONTROL AND WIRING DIAGRAMS COMMUNICATION SYSTEMS POWER LAY-OUTS LIGHTING LAY-OUTS EARTHING LAY-OUTS CATHODIC PROTECTION LOGIC SYMBOLS
PAGE 4 - 16
17 - 28 29
30 - 38 30 - 38 30 - 38 30 - 38 39 - 40
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NOTES
1. SYMBOLS HAVE BEEN DERIVED FROM IEC PUBLICATION 617, NEN 5152 AND COMPANY STANDARDS.
EXAMPLE ON SYMBOLS.
PUBLICATION IEC 617
NEN 5152
EXAMPLE
: 03-01-02 A
123
IEC
COMPANY SEQUENCE INDEX
: NEN-K-13
NON STANDARD (NORM) : NS-52
2. ALL SYMBOLS MAY BE DRAWN IN ANY POSITION, THE INSCRIPTIONS SHALL REMAIN, HOWEVER IN THE UPRIGHT POSITION. EXCEPTION ARE:
A. RELAYS, CONTACTS AND SWITCHES SHALL BE SHOWN SUCH THAT THE MODE OF OPERATION IS FROM LEFT TO RIGHT OR FROM BOTTOM TO TOP.
B. INSCRIPTION ON CIRCUIT AND CABLES SHALL BE WRITTEN ALONG THE SYMBOLS AND SHALL BE READ FROM LEFT TO RIGHT OR FROM BOTTOM TO TOP.
3. CONTACTS OF ELECTRICAL OPERATED DEVICES SHALL BE SHOWN IN THE DEENERGIZED POSITION. SWITCHES SHALL BE DRAWN IN THE OFF-POSITION OR NOT-ACTIVATED (NO PRESSURE, FLOW, ETC.)
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CAD NAME
DESCRIPTION
07-13-02
CONTACTOR
07-13-05 07-13-02 07-13-08 07-21-08 07-21-09 07-14-04
CIRCUIT BRACHER
DISCONNECTOR (ISOLATOR) OFF LOAD
SWITCH-DISCONNECTOR ON LOAD
FUSE-DISCONNECTOE OFF LOAD
FUSE SWITCH-DISCONNECTOR ON LOAD
VOLTAGE INDICATOR CAPACITIVE
SYMBOL
ID. NO.
SYMBOL FOR KEY DIAGRAM, M.V. AND L.V. ONE LINE DIAGRAMS COMPANY DOCUMENT NS 501-502.
ISSUE SHEET
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DOC.NO.
BN-DS-E2
CAD NAME
DESCRIPTION
NEN-B-45A
SINGLE-POLE SWITCH
NEN-B-45B
TWO-POLE SWITCH
NEN-B-45C
THREE-POLE SWITCH
NEN-B-45D NEN-B-45F
TWO-POLE SWITCH WITH SWITCHED NEUTRAL CONDUCTOR
FOUR-POLE SWITCH WITH SWITCHED NEUTRAL CONDUCTOR
SYMBOL
ID. NO.
SYMBOL FOR KEY DIAGRAM, M.V. AND L.V. ONE LINE DIAGRAMS COMPANY DOCUMENT NS 501-502.
ISSUE SHEET
8 5 of 40
DOC.NO.
BN-DS-E2
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