E-001 ELECTRICAL LEGEND AND ABBREVIATIONS.pdf

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E-001

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SHEET

IDENTIFICATION

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US Army Corps of Engineers

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READY TO ADVERTISE (RTA)

PROFESSIONAL

GEORG IA

DOUGL A S P . ENGELENGINEER

REGISTERED

No. 41840

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M E

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P E

ELECTRICAL ABBREVIATIONS

A AMPERES

AC ALTERNATING CURRENT

A/C AIR CONDITIONING

AHU AIR HANDLING UNIT

AIC AMPERE INTERRUPTING CAPACITY

AL ALUMINUM

ATS AUTOMATIC TRANSFER SWITCH

AWG AMERICAN WIRE GAUGE

BTU BRITISH THERMAL UNITS

C CONDUIT

CB CIRCUIT BREAKER

CKT CIRCUIT

CLF CURRENT LIMITING FUSE

CPT CONTROL POWER TRANSFORMER

CT CURRENT TRANSFORMER

CU COPPER

DC DIRECT CURRENT

DIA DIAMETER

DIV DIVISION

EB EQUIPMENT BRANCH

EF EXHAUST FAN

EFSO EMERGENCY FUEL SHUTOFF SWITCH

EM EMERGENCY

EPDS EMERGENCY POWER DOWN STATION SWITCH

EP EXPLOSION PROOF

EWC ELECTRIC WATER COOLER

FA FIRE ALARM

FLA FULL LOAD AMPERES

FMC FLEXIBLE METAL CONDUIT

G GROUND

GFCI GROUND FAULT CIRCUIT INTERRUPTER

GND GROUND

HOA HAND-OFF-AUTO SWITCH

HVAC HEATING, VENTILATION, AIR CONDITIONING

HZ HERTZ

IMC INTERMEDIATE METAL CONDUIT

INT INTERLOCK

KVA KILOVOLT-AMPERES

LFMC LIQUID-TIGHT FLEXIBLE METAL CONDUIT

LTG LIGHTING

MCB MAIN CIRCUIT BREAKER

MCC MOTOR CONTROL CENTER

MCP MOTOR CIRCUIT PROTECTION

MLO MAIN LUG ONLY

NC NORMALLY CLOSED

NEC NATIONAL ELECTRICAL CODE

NFPA NATIONAL FIRE PROTECTION ASSOCIATION

NL NIGHT LIGHT

NO NORMALLY OPEN

PCP PUMP CONTROL PANEL

PWR POWER

PT POTENTIAL TRANSFORMER

RMC RIGID METAL CONDUIT

RNC RIGID NON-METALLIC CONDUIT

UG UNDER GROUND

UL UNDERWRITERS LABORATORY

V VOLT

VA VOLT-AMPERE

VFD VARIABLE FREQUENCY DRIVE

VT VOLTAGE TRANSFORMER

WH WATER HEATER

WP WEATHER PROOF

NOTES:

1. WHERE MORE THAN ONE SYMBOL FORMAT IS SHOWN, THE

PREFERRED FORM IS SHOWN FIRST.

2. SUPPLEMENTAL ELECTRICAL LEGENDS MAY APPEAR IN THIS

SET OF DRAWINGS TO ESTABLISH SYMBOLS FOR ITEMS NOT

COVERED BY THIS SHEET OR TO INDICATE SPECIFIC

CONDITIONS IN LIEU OF SYMBOLS SHOWN ON THIS SHEET.

3. EXISTING ITEMS ARE DESIGNATED BY A THIN LINE OR AN OPEN

SYMBOL; NEW ITEMS WITH A THICK LINE OR CLOSED (FILLED

IN) SYMBOL.

4. ELECTRIC LIGHT FIXTURES ARE IDENTIFIED BY CAPITAL

LETTER ADJACENT TO THE FIXTURE SYMBOL.

5. SIZES OF WIRE AND CABLE ARE BASED ON COPPER

CONDUCTORS, U.N.O.

6. LETTERS SUCH AS 'WP', 'EP' ADJACENT TO ANY SYMBOL

INDICATE SPECIAL CONSTRUCTION IS REQUIRED. SEE

ABBREVIATIONS.

7. ALL RECEPTACLE AND COMMUNICATION OUTLETS SHALL BE

MOUNTED 15" A.F.F. AS MEASURED TO THE BOTTOM OF THE

OUTLET BOX, U.N.O.

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