Fire Alarm Symbols, Schedules, and Details - General Notes and Raceway Material Use

Oct 28, 2026

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Electrical fire alarm drawings and specifications for Dutch Fork Elementary School include raceway material use requirements, wiring branch circuit conventions, and hashmark code rules for wire counts in conduit runs. The sheet provides general construction notes on conductor sizing, fuse types, grounding wire provisions, return-air plenum compliance, and installation coordination. It also lists electrical symbol terminology, empty conduit and flexible conduit guidance, and firestop requirements for through-penetration assemblies rated and tested per UL and ASTM standards.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages13

Reading Time33 min

AccessFree to download

Raceway Material Use Table

Abbreviations and Wiring Conventions

Branch Circuit Wiring and Hashmark Code

General Notes

Electrical Symbols and Sheet Information

Notes to Through Penetration Firestoppping

| RACEWAY MATERIAL USE TABLE
APPLICATION CONTRACTOR MAY USE ANY MATERIAL MARKED ( ) FOR APPLICATION LISTED. IF MATERIAL IS NOT MARKED FOR AN APPLICATION, IT SHALL NOT BE USED FOR THAT APPLICATION. EMT IMC GRS 40 PVC ENT AC/MC
CABLE MF D .
WIRING BRANCH CIRCUITS CONCEALED ABOVE CEILING CONCEALED IN WALLS EXPOSED FROM FLOOR TO 7'-0" A. F. F. (INTERIOR) EXPOSED FROM 7'-0" A. F. F. AND ABOVE (INTERIOR) TTED TTED TTED TTED IN OR UNDER CONCRETE FLOORS (1)
(1)
ERMI ERMI ERMI ERMI OUTDOORS-BELOW GRADE (1)
(1)
NOT P NOT P NOT P NOT P OUTDOORS-EXPOSED STUB-UPS BELOW PANELS & ENCLOSURES FEEDER CONDUITS SERVICE ENTRANCE (1) WITH BITUMINOUS COATING. SEE SPEC. (2) FIRE ALARM RACEWAYS SHALL BE RED. SEE SPEC.
Copyright c 1999 Guy White & Associates, Inc.

| | ABBREVIATIONS
Copyright1999 Guy White & Associates, Inc.
THE FOLLOWING STANDARD ABBREVIATIONS ARE USED IN THESE PLANS AND SPECIFICATIONS. CONTRACTOR IS CAUTIONED THAT ALL ABBREVIATIONS LISTED MAY NOT BE USED; CONSULT PLANS AND SPECIFICATIONS FOR ABBREVIATIONS APPLICABLE TO THIS PROJECT. | | BRANCH CIRCUIT WIRINGHASHMARK CODE
Copyright 1999 Guy White & Associates, Inc.
NO SCALE
BRANCH CIRCUITS SHOWN ON THESE DRAWINGS MAY INCLUDE HASHMARKS WHICH INDICATE THE NUMBER OF WIRES TO BE PROVIDED IN A CONDUIT RUN BETWEEN OUTLETS OR JUNCTION BOXES. WIRE SIZES SHALL BE AS TABULATED IN PANELBOARD SCHEDULES UNLESS OTHERWISE INDICATED ON PLAN. SEE SYMBOL SCHEDULE FOR CONDUIT ROUTING NOTATION. HASHMARK CODE IS AS FOLLOWS:
EACH PHASE AND NEUTRAL WIRE IN A CONDUIT RUN IS REPRESENTED BY A HASHMARK. FOR EXAMPLE-
TWO WIRES (NO HASHMARKS)
THREE WIRES (3 HASHMARKS)
FOUR WIRES (4 HASHMARKS)
FIVE WIRES (5 HASHMARKS)
AND SO FORTH.
NOTE: GROUND WIRES ARE NOT GENERALLY SHOWN. EXAMINE SPECIFICATIONS AND GENERAL NOTES TO DETERMINE REQUIREMENTS FOR GROUND WIRES AND WHERE SPECIFIED, PROVIDE IN ADDITION TO THE NUMBER OF WIRES INDICATED BY HASHMARK CODE.
NOTE: CONTRACTOR IS CAUTIONED THAT MULTIWIRE (LINE-TO-NEUTRAL) BRANCH CIRCUITS DO NOT INDICATE ALL REQUIRED NEUTRAL CONDUCTORS. PROVIDE SEPARATE NEUTRAL CONDUCTORS (WITH COLORED STRIPE TO MATCH PHASE CONDUCTOR) FOR EACH PHASE CONDUCTOR.
EMPTY CONDUITS ARE NOTED BY "EC" WITH TRADE SIZE. | | GENERAL NOTES

1. DO NOT SCALE DRAWINGS UNLESS DIMENSIONS ARE SHOWN. LOCATE OUTLETS AND EQUIPMENT AS OBVIOUSLY INDICATED AND COORDINATE WITH OTHER TRADES TO AVOID CONFLICTS.
2. MINIMUM SIZE CONDUCTOR FOR POWER SHALL BE NO. 12 AWG.
3. ALL FUSES SHALL BE DUAL-ELEMENT TYPE, "FUSETRON" BY BUSSMAN, OR "ECON" BY ECONOMY.
4. BRANCH CIRCUIT SIZES ARE AWG 12-1/2"C. UNLESS OTHERWISE NOTED IN PANELBOARD SCHEDULES.
5. ALL BRANCH CIRCUIT LOADS SHALL BE BALANCED ACROSS PANELBOARD BUSSES TO OBTAIN MINIMUM NEUTRAL CURRENT.
6. ALL FLEXIBLE CONDUIT SHALL CONTAIN A GREEN WIRE BONDED TO RIGID RACEWAY, BOX OR FIXTURE AT EACH END OF FLEX. SIZE GROUND WIRE PER N. E.C. TABLE 250-122.
7. ALL ELECTRICAL WORK ABOVE CEILINGS UTILIZED AS RETURN AIR PLENUMS SHALL COMPLY WITH N. E.C. AND LOCAL CODES FOR WIRING USED IN ENVIRONMENTAL AIR.
8. PROVIDE PULL CORD IN ALL EMPTY RACEWAYS.
9. DO NOT MOUNT FLUSH JUNCTION BOXES BACK TO BACK. STAGGER JUNCTION BOXES TO REDUCE SOUND TRANSMISSION BETWEEN ROOMS.
10. CONTRACTOR SHALL MINIMIZE REMOVAL OF STRUCTURAL STEEL FIREPROOFING FOR
INSTALLATION OF CONDUIT AND EQUIPMENT HANGERS. OBTAIN APPROVAL OF GENERAL CONTRACTOR PRIOR TO REMOVAL. | ELECTRICAL SYMBOLS

Copyright 199 Guy White & Associates, Inc. | | GWA: 24225

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168 Laurelhurst Avenue Columbia, SC 29210
(803)252-6919
Fax (803)799-5494
[gwa@gwainc.net](gwa@gwainc.net)[ ](gwa@gwainc.net)[http://www.gwainc.net](http://www.gwainc.net)
ALL RIGHTS RESERVED. THIS DRAWING AND THE DESIGN THEREON IS COPYRIGHTED AS PRESCRIBED BY THE LAWS OF THE UNITED STATES AND IS THE PROPERTY OF GWA, INC. ANY DUPLICATION, REPRO

FAQs

What governs which raceway materials can be used for specific applications?

Contractors may use only materials marked for the listed application. If a material is not marked for an application, it must not be used for that application.

How do hashmarks indicate the number of wires in a conduit run?

Each phase and neutral wire is represented by a hashmark. Two wires mean no hashmarks, three wires mean 3 hashmarks, four wires mean 4 hashmarks, and so on.

What are the key requirements for through-penetration firestop systems?

Through-penetration openings require a UL-listed system with a rating equal to the construction being penetrated, specific to the penetrating device. Systems must meet ASTM E-814/UL 1749 tested assembly requirements and provide the required fire rating.

Oct 28, 2026

Upload by Aran