OEI VABM CHILLER REPLACEMENT REV MECH ELEC 120722.pdf

12/07/2022

SCALE: NONE1 CHILLED WATER FLOW DIAGRAM - DEMO

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418 www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

1. RESPONSE TO PRE-BID RFI QUESTIONS 12/07/22 M-602

MECHANICAL DIAGRAMS

LRL LRL

SCALE: NONE1 CHILLED WATER FLOW DIAGRAM - NEW

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418 www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

1. RESPONSE TO PRE-BID RFI QUESTIONS 12/07/22 M-603

MECHANICAL DIAGRAMS

LRL LRL

ABBREVIATIONS

1PH SINGLE PHASE

1P SINGLE POLE

2/C TWO-CONDUCTOR

3/C THREE-CONDUCTOR

3PH THREE-PHASE

4/C FOUR-CONDUCTOR

4W FOUR-WIRE

A/C UNIT AIR CONDITIONING UNIT

A/E ARCHITECT/ENGINEER

AAP ALARM ANNUNCIATOR PANEL

AC ALTERNATING CURRENT OR ARMORED CABLE

ACC ACCESSIBLE

ADDL ADDITIONAL

ADJ ADJACENT, ADJOINING

AF AMPERE FRAME OR AMP FUSE

AFC ABOVE FINISHED COUNTER, AUTOMATIC FREQUENCY

CONTROL, OR AVAILABLE FAULT CURRENT

AFCI ARC-FAULT CURRENT INTERRUPTER

AFF ABOVE FINISHED FLOOR

AFG ABOVE FINISHED GRADE

AFIB ARC FAULT CIRCUIT INTERRUPTER CIRCUIT BREAKER.

AF/GF ARC FAULT AND GROUND FAULT CIRCUIT INTERRUPTER

Ah AMPERE HOUR

AHJ AUTHORITY HAVING JURISDICTION

AIC AMPERE INTERRUPTING CAPACITY

ALT ALTERNATE

AMB AMBIENT

AMP AMPERE

ARCH ARCHITECT

ASC AMPS SHORT CIRCUIT

AT AMPERE TRIP

ATS AUTOMATIC TRANSFER SWITCH

AUTO AUTOMATIC

AV AUDIO VISUAL

BAT BATTERY

BD BOARD

BFF BELOW FINISHED FLOOR

BLDG BUILDING

BRK RBREAKER

BYP BYPASS

C CONDUIT

CAB CABINET (MOUNTED)

CALC CALCULATE

CAP CAPACITY

CAT CATALOG

CATV COMMUNITY ANTENNA TELEVISION

CCR CONTROL CONTRACTOR

CCTV CLOSED CIRCUIT TELEVISION

cd CANDELA

CD CONSTRUCTION DOCUMENTS

CF CONTRACTOR FINISHED

CF/CI CONTRACTOR FINISHED/CONTRACTOR INSTALLED

CFE CONTRACTOR FINISHED EQUIPMENT

CHW CHILLED WATER

CHWP CHILLED WATER PUMP

CKT CIRCUIT

CKT BRKR CIRCUIT BREAKER

OR C/B

CLF CURRENT LIMITING FUSE

CLG CEILING

COAX COAX CABLE

COMM COMMUNICATION

COMPT COMPARTMENT

CONC CONCRETE

CONT CONTINUE

CONTR CONTRACTOR

COORD COORDINATE

CPT CONTROL POWER TRANSFORMER

CRI COLOR RENDERING INDEX

CT CURRENT TRANSFORMER

CTV CABLE TELEVISION

CU COPPER

CUR CURRENT

dB DECIBEL

DC DIRECT CURRENT

DCP DIMMER CONTROL PANEL

DEG C DEGREES CELCIUS

DEG F DEGREES FAHRENHEIT

DEMO DEMOLITION

DIAG DIAGRAM

DISC DISCONNECT

DISTR PNL DISTRIBUTION PANEL

DMR SW DIMMER SWITCH

DPDT DOUBLE POLE, DOUBLE THROW

DPST DOUBLE POLE, SINGLE THROW

DRSW DOOR SWITCH

DS DISCONNECT SWITCH

DWG DRAWING

EL ELEVATION

ELEC ELECTRIC OR ELECTRICAL

ELEV ELEVATOR

EMER EMERGENCY

EMI ELECTROMAGNETIC INTERFERENCE

EMT ELECTRICAL METALLIC TUBING

ENCL ENCLOSURE

EPO EMERGENCY POWER OFF

EPRF EXPLOSION PROOF

ESMT EASEMENT

EWC ELECTRIC WATER COOLER

EWH ELECTRIC WATER HEATER

EXIST OR (E) EXISTING

FA FIRE ALARM

FAAP FIRE ALARM ANNUNCIATOR PANEL

FACP FIRE ALARM CONTROL PANEL

FC FOOTCANDLE

FIXT FIXTURE

FLA FULL LOAD AMPS

FLUOR FLUORESCENT

FP FIRE PROTECTION

FSD FIRE SMOKE DAMPER

FT FEET OR FOOT

FU SW FUSED SWITCH

FVNR FULL VOTAGE NON-REVERSING

FVR FULL VOLTAGE REVERSING

G ELECTRICAL GROUND

GEN GENERATOR

GFI GROUND FAULT INTERRUPTER

GFIB GROUND FAULT CIRCUIT INTERRUPTER VIA CIRCUIT

BREAKER.

HID HIGH INTENSITY DISCHARGE

HOA HAND-OFF-AUTOMATIC

HP HORSEPOWER

HT HEIGHT

HZ HERTZ

IESNA ILLUMINATION ENGINEERING SOCIETY OF

NORTH AMERICA

IMC INTERMEDIATE METAL CONDUIT

INCAND INCANDESCENT

IR INFRARED

IWH INSTANTANEOUS WATER HEATER

J-BOX JUNCTION BOX

kV KILOVOLT kVA KILOVOLT AMPERE kVAh KILOVOLT AMPERE PER HOUR kVAR KILOVOLT AMPERE REACTIVE kW KILOWATT kWh KILOWATT HOUR kWhM KILOWATT HOUR METER

LED LIGHT EMITTING DIODE

LF LINEAR FEET (FOOT)

LP LIGHT POLE

LPS LOW PRESSURE SODIUM

LRA LOCKED ROTOR AMPS

LT LIGHT

LTG LIGHTING

LTG PNL LIGHTING PANEL

LTNG LIGHTNING

LV LOW VOLTAGE

MAX MAXIMUM

MC METAL-CLAD

MCA MINIMUM CIRCUIT AMPS

MCB MAIN CIRCUIT BREAKER

MCC MOTOR CONTROL CENTER

MD MOTORIZED DAMPER

MECH MECHANICAL

MH MANHOLE

MIN MINIMUM

MOCP MAXIMUM OVERCURRENT PROTECTION

MLA MAIN LUGS ONLY

MT MOUNT

MTD MOUNTED

MTG MOUNTING

MTS MANUAL TRANSFER SWITCH

MV MEDIUM VOLTAGE

MVA MEGAVOLT-AMPERE

MW MEGAWATT

NA NOT APPLICABLE

NC NORMALLY CLOSED

NEC NATIONAL ELECTRIC CODE

NEMA NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION

NEUT OR N NEUTRAL

NFPA NATIONAL FIRE PROTECTION ASSOCIATION

NIC NOT IN CONTRACT

NL NIGHT LIGHT

NO NORMALLY OPEN

NTS NOT TO SCALE

OC ON CENTER

OD OUTSIDE DIAMETER

OL OVERLOAD

P POLE

PB PULL BOX

PEC PHOTOELECTRIC CELL

PED PEDESTAL

PEND PENDANT

PF POWER FACTOR

PH PHASE

PNL PANEL

PT POTENTIAL TRANSFORMER

PVC POLYVINYL CHLORIDE (PLASTIC)

PWR POWER

RCP REFLECTED CEILING PLAN

RE RELOCATED EXISTING

REC RECESSED

RECPT RECEPTACLE

RM ROOM

RMS ROOT MEAN SQUARE

REQD REQUIRED

SCC SHORT CIRCUIT CAPACITY

SD SMOKE DETECTOR

SF SQUARE FOOT (FEET)

SHT SHEET

SI INTERNATIONAL SYSTEM OF UNITS

SPEC SPECIFICATION

SPST SINGLE POLE, SINGLE THROW

SURF SURFACE

SW SWITCH

SWBD SWITCHBOARD

SWGR SWITCHGEAR

TEL TELEPHONE

TV TELEVISION

TYP TYPICAL

UFD UNDERFLOOR DUCT

UGND UNDERGROUND

UL UNDERWRITERS LABORATORY

UON UNLESS OTHERWISE NOTED

USB RECEPTACLE w/INTEGRATED UNIVERSAL SERIAL BUS

PORT

UPS UNINTERRUPTIBLE POWER SUPPLY

UTIL UTILITY

V VOLT

VA VOLT AMPERE

VAR VOLT AMPERE REACTIVE

VFD VARIABLE FREQUENCY DRIVE

VOLT VOLTAGE

W WATT

WH WATER HEATER

WP WEATHERPROOF

XFER TRANSFER

XFMR TRANSFORMER

ELECTRICAL SYMBOLS

20 AMP DUPLEX RECEPTACLE (NEMA 5-20R) MOUNTED AT 18" AFF TO CENTER LINE OF OUTLET UNLESS NOTED OTHERWISE.

20 AMP QUADRUPLEX RECEPTACLE (NEMA 5-20R) MOUNTED AT 18" AFF TO CENTER LINE OF OUTLET UNLESS NOTED

OTHERWISE.

20 AMP DUPLEX RECEPTACLE (NEMA 5-20R) MOUNTED ABOVE COUNTER. REFER TO ARCHITECTURAL ELEVATIONS FOR

EXACT LOCATION AND MOUNTING HEIGHT.

20 AMP DUPLEX RECEPTACLE (NEMA 5-20R), RECESSED FLOOR MOUNTED. PROVIDE SQUARE BRUSHED NICKEL FINISH COVER PLATE WITH RECESS DEVICE, FLIP TOP COVER WITH NON-RECESS DEVICE WILL NOT BE ACCEPTED. FLOOR BOX

SHALL BE LISTED FOR PROPOSED LOCATION AS REQUIRED.

20 AMP DUPLEX RECEPTACLE (NEMA 5-20R) AND COMMUNICATIONS DUAL SERVICE FLOOR BOX, RECESSED FLOOR MOUNTED. PROVIDE 1" CONDUIT SLEEVE WITH PULL STRING, STUB INTO ACCESSIBLE CEILING SPACE. PROVIDE SQUARE BRUSHED NICKEL FINISH COVER PLATE WITH RECESS DEVICES, FLIP TOP COVER WITH NON-RECESS DEVICES WILL NOT BE

ACCEPTED. FLOOR BOX SHALL BE LISTED FOR PROPOSED LOCATION AS REQUIRED.

20 AMP QUADRUPLEX RECEPTACLE (NEMA 5-20R) AND COMMUNICATIONS DUAL SERVICE FLOOR BOX, RECESSED FLOOR MOUNTED. PROVIDE 1" CONDUIT SLEEVE WITH PULL STRING, STUB INTO ACCESSIBLE CEILING SPACE. PROVIDE SQUARE BRUSHED NICKEL FINISH COVER PLATE WITH RECESS DEVICES, FLIP TOP COVER WITH NON-RECESS DEVICES WILL NOT BE

ACCEPTED. FLOOR BOX SHALL BE LISTED FOR PROPOSED LOCATION AS REQUIRED.

SPECIAL PURPOSE POWER DEVICE, COORDINATE EXACT NEMA NUMBER DEVICE WITH EQUIPMENT PLUG UNLESS NOTED

OTHERWISE.

COMMUNICATIONS OUTLET. PROVIDE 1" CONDUIT SLEEVE WITH PULL STRING, STUB INTO ACCESSIBLE CEILING SPACE.

MOUNT AT 18" A.F.F. TO CENTER OF OUTLET UNLESS NOTED OTHERWISE.

RECEPTACLE AND COMMUNICATIONS OUTLET. PROVIDE (2) 1" CONDUIT SLEEVES WITH CABLING, STUB INTO ACCESSIBLE CEILING SPACE. COORDINATE MOUNTING HEIGHT OF BOX WITH ARCHITECTURAL DRAWINGS PRIOR TO ROUGH IN. PROVIDE FOUR GANG, RECESSED MOUNTED STEEL BOX WITH VOLTAGE DIVIDER AND OPTIONAL COVER PLATE.

ARLINGTON TVBS613 OR EQUIVALENT.

TELEVISION OUTLET. PROVIDE 1" CONDUIT SLEEVE WITH PULL STRING, STUB INTO ACCESSIBLE CEILING SPACE. MOUNT AT

18" A.F.F. TO CENTER LINE OF OUTLET UNLESS NOTED OTHERWISE.TV

JUNCTION BOXJ

PROPOSED ROUTING OF LOW VOLTAGE WIRING FOR DIAGRAMMATIC PURPOSES ONLY.

SINGLE/DOUBE POLE LINE VOLTAGE MOTION SENSOR, PASSIVE (PIR)

SENSORSWITCH "CMR" SERIES. PROVIDE DOUBLE POLE WHEN (2) CONTROLLED CIRCUITS.

LINE VOLTAGE, MOTION/SOUND SENSOR, PASSIVE (PIR) AND ULTRASONIC (US) DUAL TECHNOLOGY. SENSORSWITCH "CMR-

PDT" SERIES.

SELF CONTAINED, PLENUM RATED, DUAL CIRCUIT POWER PACK WITH 20 AMP RATING. SENSORSWITCH "PP" SERIES.

ELECTRICAL PANELBOARD, SURFACE MOUNTED

FUSIBLE DISCONNECT SWITCH A = POLES, B= FRAME SIZE, C= FUSE RATING

GROUNDING ELECTRODE AND CONDUCTOR SYSTEM

TRANSFORMER

TELEPHONE WOOD BACKBOARD

THERMOSTAT LOCATION. REFER TO MECHANICAL DRAWINGS FOR MOUNTING HEIGHT AND SPECIFICATIONS. PROVIDE JUNCTION BOX IN WALL BEHIND THERMOSTAT WITH 1" CONDUIT SLEEVE WITH PULL STRING, STUB INTO ACCESSIBLE CEILING SPACE. CONDUIT AND BOXES SHALL BE CONCEALED / RECESSED IN CONCRETE BLOCK (CMU) WALLS.

GARAGE DOOR CONTROL SWITCH, PROVIDE CONNECTIONS ACCORDING TO MANUFACTURER RECOMMENDATIONS

GARAGE DOOR MOTION SENSOR, PROVIDE CONNECTIONS ACCORDING TO MANUFACTURER RECOMMENDATIONS

USED FOR CLARITY PURPOSES AS FOLLOWS:

TO CONNECT GROUPS OF MULTIPLE DEVICES/LIGHT FIXTURES IN DIFFERENT LOCATIONS TOGETHER ON THE SAME

BRANCH CIRCUIT AS INDICATED.

TO INDICATE BRANCH CIRCUIT USED IN DIFFERENT LOCATIONS, FOLLOW KEYNOTES AS INDICATED.

GENERAL FLOOR BOX NOTE:

REFER TO ARCHITECTURAL PLANS FOR DIMENSIONS AND FINAL LOCATIONS PRIOR TO ROUGH IN.

M

PP

T

20 AMP QUADRUPLEX RECEPTACLE (NEMA 5-20R), RECESSED FLOOR MOUNTED. PROVIDE SQUARE BRUSHED NICKEL FINISH COVER PLATE WITH RECESS DEVICES, FLIP TOP COVER WITH NON-RECESS DEVICES WILL NOT BE ACCEPTED. FLOOR BOX

SHALL BE LISTED FOR PROPOSED LOCATION AS REQUIRED.

20 AMP DUPLEX RECEPTACLE (NEMA 5-20R), CEILING MOUNTED.

COMMUNICATIONS OUTLET, CEILING MOUNTED.

TV TELEVISION OUTLET, CEILING MOUNTED.

ELECTRICAL PANELBOARD, RECESSED MOUNTED

NEMA

MS

B C A

T1

TV

20 AMP QUADRUPLEX RECEPTACLE (NEMA 5-20R), CEILING MOUNTED.

MULTI OUTLET HARD WIRED PLUG STRIP WITH USB CHARGING, 9" DEVICE SPACING, STEEL, ALUMINUM FINISH. MOUNT HIGH UP, UNDER COUNTER TOP UNLESS NOTED OTHERWISE. WIREMOLD 2000 SERIES OR EQUIVALENT WITH ALTERNATING

DEVICES. LENGTH PER PLAN.

LINE VOLTAGE MOTION SENSOR, PASSIVE (PIR), WET LOCATION RATED

ATLAS LIGHTING PRODUCTS "MS360WL" SERIESWP

M

LOW VOLTAGE MOTION SENSOR, PASSIVE (PIR)

SENSORSWITCH "CM" SERIES.

LV

MS

LOW VOLTAGE MOTION/SOUND SENSOR, PASSIVE (PIR) AND ULTRASONIC (US) DUAL TECHNOLOGY. SENSORSWITCH "CM-

PDT" SERIES

LV

M

EMERGENCY EXIT SIGN, WALL MOUNTED. EXIT SIGN SHALL BE MOUNTED WITHIN 6'-8" ABOVE TOP OF EGRESS DOOR FRAME.

EMERGENCY EXIT SIGN. FOR CEILING(S) WITH A HEIGHT LESS THAN OR EQUAL TO 6'-8" ABOVE TOP OF EGRESS DOOR FRAME, EXIT SIGN SHALL BE CEILING SURFACE MOUNTED. FOR CEILING(S) WITH A HEIGHT GREATER THAN 6'-8" ABOVE TOP OF EGRESS DOOR FRAME, EXIT SIGN SHALL BE CEILING SUSPENDED AT OR ABOVE THE LINE OF SIGHT.

GENERAL NOTES

1. GENERAL REQUIREMENTS

A. GENERAL

1. DESCRIPTION: FURNISH AND INSTALL ELECTRICAL SYSTEMS, MATERIALS, EQUIPMENT, AND ACCESSORIES IN ACCORDANCE WITH THE SPECIFICATIONS AND DRAWINGS.

CAPACITIES AND RATINGS OF MOTORS, TRANSFORMERS, CONDUCTORS AND CABLE, SWITCHBOARDS, SWITCHGEAR, PANELBOARDS, MOTOR CONTROL CENTERS, GENERATORS, AUTOMATIC TRANSFER SWITCHES, AND OTHER ITEMS AND ARRANGEMENTS FOR THE SPECIFIED ITEMS ARE SHOWN ON THE DRAWINGS.

2. ELECTRICAL SERVICE ENTRANCE EQUIPMENT AND ARRANGEMENTS FOR TEMPORARY AND PERMANENT CONNECTIONS TO THE ELECTRIC UTILITY COMPANY'S SYSTEM SHALL CONFORM TO THE ELECTRIC UTILITY COMPANY'S REQUIREMENTS. COORDINATE FUSES, CIRCUIT BREAKERS AND RELAYS WITH THE ELECTRIC UTILITY COMPANY'S SYSTEM, AND OBTAIN ELECTRIC UTILITY COMPANY APPROVAL FOR SIZES AND SETTINGS OF THESE DEVICES.

3. CONDUCTOR AMPACITIES SPECIFIED OR SHOWN ON THE DRAWINGS ARE BASED ON COPPER CONDUCTORS, WITH THE CONDUIT AND RACEWAYS SIZED PER NEC.

ALUMINUM CONDUCTORS ARE PROHIBITED.

4. THE LATEST INTERNATIONAL BUILDING CODE (IBC), UNDERWRITERS LABORATORIES, INC. (UL), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE), AND NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) CODES AND STANDARDS ARE THE MINIMUM REQUIREMENTS FOR MATERIALS AND INSTALLATION.

5. THE DRAWINGS AND SPECIFICATIONS SHALL GOVERN IN THOSE INSTANCES WHERE REQUIREMENTS ARE GREATER THAN THOSE STATED IN THE ABOVE CODES AND

STANDARDS.

6. TEST STANDARDS: ALL MATERIALS AND EQUIPMENT SHALL BE LISTED, LABELED, OR CERTIFIED BY A NATIONALLY RECOGNIZED TESTING LABORATORY (NRTL) TO MEET UNDERWRITERS LABORATORIES, INC. (UL), STANDARDS WHERE TEST STANDARDS HAVE BEEN ESTABLISHED. MATERIALS AND EQUIPMENT WHICH ARE NOT COVERED BY UL STANDARDS WILL BE ACCEPTED, PROVIDING THAT MATERIALS AND EQUIPMENT ARE LISTED, LABELED, CERTIFIED OR OTHERWISE DETERMINED TO MEET THE SAFETY REQUIREMENTS OF A NRTL. MATERIALS AND EQUIPMENT WHICH NO NRTL ACCEPTS, CERTIFIES, LISTS, LABELS, OR DETERMINES TO BE SAFE, WILL BE CONSIDERED IF INSPECTED OR TESTED IN ACCORDANCE WITH NATIONAL INDUSTRIAL STANDARDS, SUCH AS ANSI, NEMA, AND NETA. EVIDENCE OF COMPLIANCE SHALL INCLUDE

CERTIFIED TEST REPORTS AND DEFINITIVE SHOP DRAWINGS.

7. MATERIALS AND EQUIPMENT PROTECTION: MATERIALS AND EQUIPMENT SHALL BE PROTECTED DURING SHIPMENT AND STORAGE AGAINST PHYSICAL DAMAGE, VERMIN, DIRT, CORROSIVE SUBSTANCES, FUMES, MOISTURE, COLD AND RAIN.

8. WORK PERFORMANCE

a. ALL ELECTRICAL WORK SHALL COMPLY WITH REQUIREMENTS OF THE LATEST NFPA 70 (NEC), NFPA 70B, NFPA 70E, NFPA 99, NFPA 110, OSHA PART 1910 SUBPART J -

GENERAL ENVIRONMENTAL CONTROLS, OSHA PART 1910 SUBPART K - MEDICAL AND FIRST AID, AND OSHA PART 1910 SUBPART S - ELECTRICAL, IN ADDITION TO OTHER

REFERENCES REQUIRED BY CONTRACT.

b. JOB SITE SAFETY AND WORKER SAFETY IS THE RESPONSIBILITY OF THE CONTRACTOR.

c. FOR WORK THAT AFFECTS EXISTING ELECTRICAL SYSTEMS, ARRANGE, PHASE AND PERFORM WORK TO ASSURE MINIMAL INTERFERENCE WITH NORMAL FUNCTIONING

OF THE FACILITY. REFER TO ARTICLE OPERATIONS AND STORAGE AREAS UNDER SECTION GENERAL REQUIREMENTS.

d. NEW WORK SHALL BE INSTALLED AND CONNECTED TO EXISTING WORK NEATLY, SAFELY AND PROFESSIONALLY. DISTURBED OR DAMAGED WORK SHALL BE REPLACED

OR REPAIRED TO ITS PRIOR CONDITIONS, AS REQUIRED BY SECTION GENERAL REQUIREMENTS.

e. COORDINATE LOCATION OF EQUIPMENT AND CONDUIT WITH OTHER TRADES TO MINIMIZE INTERFERENCE.

9. EQUIPMENT INSTALLATION AND REQUIREMENTS:

a. EQUIPMENT LOCATION SHALL BE AS CLOSE AS PRACTICAL TO LOCATIONS SHOWN ON THE DRAWINGS.

b. WORKING CLEARANCES SHALL NOT BE LESS THAN SPECIFIED IN THE NEC.

c. ELECTRICAL SERVICE ENTRANCE EQUIPMENT AND ARRANGEMENTS FOR TEMPORARY AND PERMANENT CONNECTIONS TO THE ELECTRIC UTILITY COMPANY'S SYSTEM

SHALL CONFORM TO THE ELECTRIC UTILITY COMPANY'S REQUIREMENTS. COORDINATE FUSES, CIRCUIT BREAKERS AND RELAYS WITH THE ELECTRIC UTILITY COMPANY'S SYSTEM, AND OBTAIN ELECTRIC UTILITY COMPANY APPROVAL FOR SIZES AND SETTINGS OF THESE DEVICES.

10. EQUIPMENT ID

a. IN ADDITION TO THE REQUIREMENTS OF THE NEC, INSTALL AN IDENTIFICATION SIGN WHICH CLEARLY INDICATES INFORMATION REQUIRED FOR USE AND MAINTENANCE

OF ITEMS SUCH AS SWITCHBOARDS AND SWITCHGEAR, PANELBOARDS, CABINETS, MOTOR CONTROLLERS, FUSED AND NON-FUSED SAFETY SWITCHES, GENERATORS, AUTOMATIC TRANSFER SWITCHES, SEPARATELY ENCLOSED CIRCUIT BREAKERS, INDIVIDUAL BREAKERS AND CONTROLLERS IN SWITCHBOARDS, SWITCHGEAR AND

MOTOR CONTROL ASSEMBLIES, CONTROL DEVICES AND OTHER SIGNIFICANT EQUIPMENT.

b. INSTALL ADHESIVE ARC FLASH WARNING LABELS ON ALL EQUIPMENT AS REQUIRED BY THE LATEST NFPA 70E. LABEL SHALL SHOW SPECIFIC AND CORRECT

INFORMATION FOR SPECIFIC EQUIPMENT BASED ON ITS ARC FLASH CALCULATIONS.

B. SUBMITTALS

1. SUBMIT SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES IN APPROPRIATE SUBMITTAL PACKAGES.

2. APPROVAL SHALL BE OBTAINED FOR ALL MATERIALS AND EQUIPMENT BEFORE DELIVERY TO THE JOB SITE. DELIVERY, STORAGE OR INSTALLATION OF MATERIALS AND

EQUIPMENT WHICH HAS NOT HAD PRIOR APPROVAL WILL NOT BE PERMITTED.

3. ALL SUBMITTALS SHALL INCLUDE SIX COPIES OF ADEQUATE DESCRIPTIVE LITERATURE, CATALOG CUTS, SHOP DRAWINGS, TEST REPORTS, CERTIFICATIONS, SAMPLES, AND OTHER DATA NECESSARY FOR THE TO ASCERTAIN THAT THE PROPOSED MATERIALS AND EQUIPMENT COMPLY WITH DRAWING AND SPECIFICATION REQUIREMENTS.

CATALOG CUTS SUBMITTED FOR APPROVAL SHALL BE LEGIBLE AND CLEARLY IDENTIFY SPECIFIC MATERIALS AND EQUIPMENT BEING SUBMITTED.

4. SUBMITTALS FOR INDIVIDUAL SYSTEMS AND EQUIPMENT ASSEMBLIES WHICH CONSIST OF MORE THAN ONE ITEM OR COMPONENT SHALL BE MADE FOR THE SYSTEM OR

ASSEMBLY AS A WHOLE. PARTIAL SUBMITTALS WILL NOT BE CONSIDERED FOR APPROVAL.

5. SUBMIT AS REQUIRED FOR SYSTEMS AND EQUIPMENT SPECIFIED IN THE TECHNICAL SECTIONS. FURNISH IN HARDCOVER BINDERS OR AN APPROVED EQUIVALENT.

6. APPROVALS WILL BE BASED ON COMPLETE SUBMISSION OF SHOP DRAWINGS, MANUALS, TEST REPORTS, CERTIFICATIONS, AND SAMPLES AS APPLICABLE.

7. WARRANTY

a. ALL WORK PERFORMED AND ALL EQUIPMENT AND MATERIAL FURNISHED UNDER THIS DIVISION SHALL BE FREE FROM DEFECTS AND SHALL REMAIN SO FOR A PERIOD

OF ONE YEAR FROM THE DATE OF ACCEPTANCE OF THE ENTIRE INSTALLATION.

2. LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

A. GENERAL

1. DESCRIPTION: FURNISHING, INSTALLATION, CONNECTION, AND TESTING OF THE ELECTRICAL CONDUCTORS AND CABLES FOR USE IN ELECTRICAL SYSTEMS RATED 600 V

AND BELOW, INDICATED AS CABLE(S), CONDUCTOR(S), WIRE, OR WIRING IN THIS SECTION.

2. SUBMITTALS

a. SHOP DRAWINGS: SUBMIT SUFFICIENT INFORMATION TO DEMONSTRATE COMPLIANCE WITH DRAWINGS AND SPECIFICATIONS.

b. SHOP DRAWINGS: ELECTRICAL RATINGS AND INSULATION TYPE FOR EACH CONDUCTOR AND CABLE.

c. SUBMIT THE FOLLOWING DATA FOR APPROVAL: ELECTRICAL RATINGS AND INSULATION TYPE FOR EACH CONDUCTOR AND CABLE.

d. SUBMIT THE FOLLOWING DATA FOR APPROVAL: SPLICING MATERIALS AND PULLING LUBRICANT.

B. PRODUCTS

1. CONDUCTORS AND CABLES

a. CONDUCTORS AND CABLES SHALL BE IN ACCORDANCE WITH ASTM, NEMA, NFPA, UL, AS SPECIFIED, AND AS SHOWN ON THE DRAWINGS.

b. ALL CONDUCTORS SHALL BE COPPER.

c. SINGLE CONDUCTOR AND CABLE:

• NO. 12 AWG: MINIMUM SIZE, EXCEPT WHERE SMALLER SIZES ARE SPECIFIED HEREIN OR SHOWN ON THE DRAWINGS.

• NO. 8 AWG AND LARGER: STRANDED.

• NO. 10 AWG AND SMALLER: SOLID; EXCEPT SHALL BE STRANDED FOR FINAL CONNECTION TO MOTORS, TRANSFORMERS, AND VIBRATING EQUIPMENT.

• INSULATION: THHN-THWN AND XHHW-2. XHHW-2 SHALL BE USED FOR ISOLATED POWER SYSTEMS.

d. COLOR CODE:

• NO. 10 AWG AND SMALLER: SOLID COLOR INSULATION OR SOLID COLOR COATING.

• NO. 8 AWG AND LARGER: COLOR-CODED USING ONE OF THE FOLLOWING METHODS:

• SOLID COLOR INSULATION OR SOLID COLOR COATING.

• STRIPES, BANDS, OR HASH MARKS OF COLOR SPECIFIED.

• COLOR USING 19 MM (0.75 INCHES) WIDE TAPE.

e. FOR MODIFICATIONS AND ADDITIONS TO EXISTING WIRING SYSTEMS, COLOR CODING SHALL CONFORM TO THE EXISTING WIRING SYSTEM.

f. LIGHTING CIRCUIT "SWITCH LEGS", AND 3-WAY AND 4-WAY SWITCH "TRAVELING WIRES," SHALL HAVE COLOR CODING THAT IS UNIQUE AND DISTINCT (E.G., PINK AND

PURPLE) FROM THE COLOR CODING INDICATED ABOVE. THE UNIQUE COLOR CODES SHALL BE SOLID AND IN ACCORDANCE WITH THE NEC. COORDINATE COLOR

CODING IN THE FIELD CLIENT PROJECT REPRESENTATIVE.

g. COLOR CODE FOR ISOLATED POWER SYSTEM WIRING SHALL BE IN ACCORDANCE WITH THE NEC.

• 208/120V PHASE 480/277V

• BLACK A BROWN

• RED B ORANGE

• BLUE C YELLOW

• WHITE NEUTRAL GRAY*

• * OR WHITE WITH COLORED (OTHER THAN GREEN) TRACER.

2. SPLICES

a. SPLICES SHALL BE IN ACCORDANCE WITH NEC AND UL.

b. ABOVE GROUND SPLICES FOR NO. 10 AWG AND SMALLER:

• SOLDERLESS, SCREW_ON, REUSABLE PRESSURE CABLE TYPE, WITH INTEGRAL INSULATION, APPROVED FOR COPPER AND ALUMINUM CONDUCTORS.

• THE INTEGRAL INSULATOR SHALL HAVE A SKIRT TO COMPLETELY COVER THE STRIPPED CONDUCTORS.

• THE NUMBER, SIZE, AND COMBINATION OF CONDUCTORS USED WITH THE CONNECTOR, AS LISTED ON THE MANUFACTURER'S PACKAGING, SHALL BE STRICTLY

FOLLOWED.

c. ABOVE GROUND SPLICES FOR NO. 8 AWG TO NO. 4/0 AWG:

• COMPRESSION, HEX SCREW, OR BOLT CLAMP_TYPE OF HIGH CONDUCTIVITY AND CORROSION_RESISTANT MATERIAL, LISTED FOR USE WITH COPPER AND

ALUMINUM CONDUCTORS.

• INSULATE WITH MATERIALS APPROVED FOR THE PARTICULAR USE, LOCATION, VOLTAGE, AND TEMPERATURE. INSULATION LEVEL SHALL BE NOT LESS THAN THE

INSULATION LEVEL OF THE CONDUCTORS BEING JOINED.

• SPLICE AND INSULATION SHALL BE PRODUCT OF THE SAME MANUFACTURER.

• ALL BOLTS, NUTS, AND WASHERS USED WITH SPLICES SHALL BE ZINC-PLATED STEEL.

E-001

ELECTRICAL GENERAL NOTES &

ABBREVIATIONS

TM JM

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 68486

TIMOTHY J. MUECK

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

1. RESPONSE TO PRE-BID RFI QUESTIONS 12/07/22

3. CONNECTIONS:

a. MECHANICAL TYPE OF HIGH CONDUCTIVITY AND CORROSION_RESISTANT MATERIAL, LISTED FOR USE WITH COPPER AND ALUMINUM CONDUCTORS.

b. LONG BARREL COMPRESSION TYPE OF HIGH CONDUCTIVITY AND CORROSION_RESISTANT MATERIAL, WITH MINIMUM OF TWO COMPRESSION INDENTS PER WIRE, LISTED FOR USE WITH COPPER AND ALUMINUM CONDUCTORS.

c. ALL BOLTS, NUTS, AND WASHERS USED TO CONNECT CONNECTIONS AND TERMINATIONS TO BUS BARS OR OTHER TERMINATION POINTS SHALL BE ZINC-PLATED

STEEL.

4. CONTROL WIRING

a. UNLESS OTHERWISE SPECIFIED ELSEWHERE IN THESE SPECIFICATIONS, CONTROL WIRING SHALL BE AS SPECIFIED HEREIN, EXCEPT THAT THE MINIMUM SIZE SHALL

BE NOT LESS THAN NO. 14 AWG.

b. CONTROL WIRING SHALL BE SIZED SUCH THAT THE VOLTAGE DROP UNDER IN-RUSH CONDITIONS DOES NOT ADVERSELY AFFECT OPERATION OF THE CONTROLS

C. EXECUTION

1. GENERAL

a. INSTALLATION SHALL BE IN ACCORDANCE WITH THE NEC, AS SHOWN ON THE DRAWINGS, AND MANUFACTURER'S INSTRUCTIONS.

b. INSTALL ALL CONDUCTORS IN RACEWAY SYSTEMS.

c. SPLICE CONDUCTORS ONLY IN OUTLET BOXES, JUNCTION BOXES, PULLBOXES, MANHOLES, OR HANDHOLES.

d. CONDUCTORS OF DIFFERENT SYSTEMS (E.G., 120 V AND 277 V) SHALL NOT BE INSTALLED IN THE SAME RACEWAY.

e. INSTALL CABLE SUPPORTS FOR ALL VERTICAL FEEDERS IN ACCORDANCE WITH THE NEC. PROVIDE SPLIT WEDGE TYPE WHICH FIRMLY CLAMPS EACH INDIVIDUAL

CABLE AND TIGHTENS DUE TO CABLE WEIGHT.

f. IN PANELBOARDS, CABINETS, WIREWAYS, SWITCHES, ENCLOSURES, AND EQUIPMENT ASSEMBLIES, NEATLY FORM, TRAIN, AND TIE THE CONDUCTORS WITH

NON-METALLIC TIES.

g. FOR CONNECTIONS TO MOTORS, TRANSFORMERS, AND VIBRATING EQUIPMENT, STRANDED CONDUCTORS SHALL BE USED ONLY FROM THE LAST FIXED POINT OF

CONNECTION TO THE MOTORS, TRANSFORMERS, OR VIBRATING EQUIPMENT.

h. USE EXPANDING FOAM OR NON-HARDENING DUCT-SEAL TO SEAL CONDUITS ENTERING A BUILDING, AFTER INSTALLATION OF CONDUCTORS.

i. NO MORE THAN THREE BRANCH CIRCUITS SHALL BE INSTALLED IN ANY ONE CONDUIT.

2. SPLICES AND TERMINATIONS INSTALLATION: SPLICES AND TERMINATIONS SHALL BE MECHANICALLY AND ELECTRICALLY SECURE, AND TIGHTENED TO

MANUFACTURER'S PUBLISHED TORQUE VALUES USING A TORQUE SCREWDRIVER OR WRENCH.

3. CONDUCTOR IDENTIFICATION: WHEN USING COLORED TAPE TO IDENTIFY PHASE, NEUTRAL, AND GROUND CONDUCTORS LARGER THAN NO. 8 AWG, APPLY TAPE IN HALF-OVERLAPPING TURNS FOR A MINIMUM OF 75 MM (3 INCHES) FROM TERMINAL POINTS, AND IN JUNCTION BOXES, PULLBOXES, AND MANHOLES. APPLY THE LAST TWO LAPS OF TAPE WITH NO TENSION TO PREVENT POSSIBLE UNWINDING. WHERE CABLE MARKINGS ARE COVERED BY TAPE, APPLY TAGS TO CABLE, STATING SIZE AND

INSULATION TYPE.

4. FEEDER CONDUCTOR IDENTIFICATION: IN EACH INTERIOR PULLBOX AND EACH UNDERGROUND MANHOLE AND HANDHOLE, INSTALL BRASS TAGS ON ALL FEEDER CONDUCTORS TO CLEARLY DESIGNATE THEIR CIRCUIT IDENTIFICATION AND VOLTAGE. THE TAGS SHALL BE THE EMBOSSED TYPE, 40 MM (1-1/2 INCHES) IN DIAMETER

AND 40 MILS THICK. ATTACH TAGS WITH PLASTIC TIES.

5. EXISTING CONDUCTORS: UNLESS SPECIFICALLY INDICATED ON THE PLANS, EXISTING CONDUCTORS SHALL NOT BE REUSED.

6. CONTROL WIRING INSTALLATION: INSTALL A SEPARATE POWER SUPPLY CIRCUIT FOR EACH SYSTEM, EXCEPT WHERE OTHERWISE SHOWN ON THE DRAWINGS.

7. ACCEPTANCE CHECKS AND TESTS:

a. AFTER INSTALLATION BUT BEFORE CONNECTION TO UTILIZATION DEVICES, SUCH AS FIXTURES, MOTORS, OR APPLIANCES, TEST CONDUCTORS PHASE-TO-PHASE AND PHASE-TO-GROUND RESISTANCE WITH AN INSULATION RESISTANCE TESTER. EXISTING CONDUCTORS TO BE REUSED SHALL ALSO BE TESTED.

b. PERFORM PHASE ROTATION TEST ON ALL THREE-PHASE CIRCUITS

3. GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

A. GENERAL

1. DESCRIPTION: FURNISHING, INSTALLATION, CONNECTION, AND TESTING OF GROUNDING AND BONDING EQUIPMENT, INDICATED AS GROUNDING EQUIPMENT IN THIS

SECTION.

2. "GROUNDING ELECTRODE SYSTEM" REFERS TO GROUNDING ELECTRODE CONDUCTORS AND ALL ELECTRODES REQUIRED OR ALLOWED BY NEC, AS WELL AS MADE, SUPPLEMENTARY, AND LIGHTNING PROTECTION SYSTEM GROUNDING ELECTRODES.

3. THE TERMS "CONNECT" AND "BOND" ARE USED INTERCHANGEABLY IN THIS SECTION AND HAVE THE SAME MEANING.

4. SUBMITTALS

a. SHOP DRAWINGS:

• SUBMIT SUFFICIENT INFORMATION TO DEMONSTRATE COMPLIANCE WITH DRAWINGS AND SPECIFICATIONS.

• SUBMIT PLANS SHOWING THE LOCATION OF SYSTEM GROUNDING ELECTRODES AND CONNECTIONS, AND THE ROUTING OF ABOVEGROUND AND UNDERGROUND

GROUNDING ELECTRODE CONDUCTORS.

B. PRODUCTS

1. GROUNDING AND BONDING CONDUCTORS

a. EQUIPMENT GROUNDING CONDUCTORS SHALL BE INSULATED STRANDED COPPER, EXCEPT THAT SIZES NO. 10 AWG AND SMALLER SHALL BE SOLID COPPER.

INSULATION COLOR SHALL BE CONTINUOUS GREEN FOR ALL EQUIPMENT GROUNDING CONDUCTORS, EXCEPT THAT WIRE SIZES NO. 4 AWG AND LARGER SHALL BE

IDENTIFIED PER NEC.

b. BONDING CONDUCTORS SHALL BE BARE STRANDED COPPER, EXCEPT THAT SIZES NO. 10 AWG AND SMALLER SHALL BE BARE SOLID COPPER. BONDING CONDUCTORS SHALL BE STRANDED FOR FINAL CONNECTION TO MOTORS, TRANSFORMERS, AND VIBRATING EQUIPMENT.

c. CONDUCTOR SIZES SHALL NOT BE LESS THAN SHOWN ON THE DRAWINGS, OR NOT LESS THAN REQUIRED BY THE NEC, WHICHEVER IS GREATER.

d. INSULATION: THHN-THWN AND XHHW-2. XHHW-2 SHALL BE USED FOR ISOLATED POWER SYSTEMS.

2. GROUND RODS: CONCRETE ENCASED ELECTRODE SHALL BE NO. 4 AWG BARE COPPER WIRE, INSTALLED PER NEC.

3. GROUND CONNECTIONS:

a. BELOW GRADE:

• BELOW GRADE AND INACCESSIBLE LOCATIONS: EXOTHERMIC-WELDED TYPE CONNECTORS.

b. ABOVE GRADE:

• BONDING JUMPERS: LISTED FOR USE WITH ALUMINUM AND COPPER CONDUCTORS. FOR WIRE SIZES NO. 8 AWG AND LARGER, USE COMPRESSION-TYPE

CONNECTORS. FOR WIRE SIZES SMALLER THAN NO. 8 AWG, USE MECHANICAL TYPE LUGS. CONNECTORS OR LUGS SHALL USE ZINC-PLATED STEEL BOLTS, NUTS, AND WASHERS. BOLTS SHALL BE TORQUED TO THE VALUES RECOMMENDED BY THE MANUFACTURER.

• CONNECTION TO BUILDING STEEL: EXOTHERMIC-WELDED TYPE CONNECTORS.

• CONNECTION TO GROUNDING BUS BARS: LISTED FOR USE WITH ALUMINUM AND COPPER CONDUCTORS. USE MECHANICAL TYPE LUGS, WITH ZINC-PLATED STEEL

BOLTS, NUTS, AND WASHERS. BOLTS SHALL BE TORQUED TO THE VALUES RECOMMENDED BY THE MANUFACTURER.

• CONNECTION TO EQUIPMENT RACK AND CABINET GROUND BARS: LISTED FOR USE WITH ALUMINUM AND COPPER CONDUCTORS. USE MECHANICAL TYPE LUGS, WITH //ZINC-PLATED//CADMIUM-PLATED// STEEL BOLTS, NUTS, AND WASHERS. BOLTS SHALL BE TORQUED TO THE VALUES RECOMMENDED BY THE MANUFACTURER.

c. EQUIPMENT RACK AND CABINET GROUND BARS: PROVIDE SOLID COPPER GROUND BARS DESIGNED FOR MOUNTING ON THE FRAMEWORK OF OPEN OR

CABINET-ENCLOSED EQUIPMENT RACKS. GROUND BARS SHALL HAVE MINIMUM DIMENSIONS OF 6.3 MM (0.25 INCH) THICK X 19 MM (0.75 INCH) WIDE, WITH LENGTH AS

REQUIRED OR AS SHOWN ON THE DRAWINGS. PROVIDE INSULATORS AND MOUNTING BRACKETS.

d. GROUND TERMINAL BLOCKS: AT ANY EQUIPMENT MOUNTING LOCATION (E.G., BACKBOARDS AND HINGED COVER ENCLOSURES) WHERE RACK-TYPE GROUND BARS CANNOT BE MOUNTED, PROVIDE MECHANICAL TYPE LUGS, WITH ZINC-PLATED STEEL BOLTS, NUTS, AND WASHERS. BOLTS SHALL BE TORQUED TO THE VALUES

RECOMMENDED BY THE MANUFACTURER.

e. GROUNDING BUS BAR: PRE-DRILLED RECTANGULAR COPPER BAR WITH STAND-OFF INSULATORS, MINIMUM 6.3 MM (0.25 INCH) THICK X 100 MM (4 INCHES) HIGH IN CROSS-SECTION, LENGTH AS SHOWN ON THE DRAWINGS, WITH HOLE SIZE, QUANTITY, AND SPACING PER DETAIL SHOWN ON THE DRAWINGS. PROVIDE INSULATORS

AND MOUNTING BRACKETS.

C. EXECUTION

1. GENERAL

a. INSTALLATION SHALL BE IN ACCORDANCE WITH THE NEC, AS SHOWN ON THE DRAWINGS, AND MANUFACTURER'S INSTRUCTIONS.

b. SYSTEM GROUNDING

• SECONDARY SERVICE NEUTRALS: GROUND AT THE SUPPLY SIDE OF THE SECONDARY DISCONNECTING MEANS AND AT THE RELATED TRANSFORMER.

• SEPARATELY DERIVED SYSTEMS (TRANSFORMERS DOWNSTREAM FROM THE SERVICE ENTRANCE): GROUND THE SECONDARY NEUTRAL.

• ISOLATION TRANSFORMERS AND ISOLATED POWER SYSTEMS SHALL NOT BE SYSTEM GROUNDED.

c. EQUIPMENT GROUNDING: METALLIC PIPING, BUILDING STRUCTURAL STEEL, ELECTRICAL ENCLOSURES, RACEWAYS, JUNCTION BOXES, OUTLET BOXES, CABINETS, MACHINE FRAMES, AND OTHER CONDUCTIVE ITEMS IN CLOSE PROXIMITY WITH ELECTRICAL CIRCUITS, SHALL BE BONDED AND GROUNDED.

2. INACCESSIBLE GROUNDING CONNECTIONS

a. MAKE GROUNDING CONNECTIONS, WHICH ARE NORMALLY BURIED OR OTHERWISE INACCESSIBLE, BY EXOTHERMIC WELD.

3. SECONDARY VOLTAGE EQUIPMENT AND CIRCUITS

a. MAIN BONDING JUMPER: BOND THE SECONDARY SERVICE NEUTRAL TO THE GROUND BUS IN THE SERVICE EQUIPMENT.

b. METALLIC PIPING, BUILDING STRUCTURAL STEEL, AND SUPPLEMENTAL ELECTRODE(S)

c. PROVIDE A GROUNDING ELECTRODE CONDUCTOR SIZED PER NEC BETWEEN THE SERVICE EQUIPMENT GROUND BUS AND ALL METALLIC WATER PIPE SYSTEMS, BUILDING STRUCTURAL STEEL, AND SUPPLEMENTAL OR MADE ELECTRODES. PROVIDE JUMPERS ACROSS INSULATING JOINTS IN THE METALLIC PIPING.

d. PROVIDE A SUPPLEMENTAL GROUND ELECTRODE AS SHOWN ON THE DRAWINGS AND BOND TO THE GROUNDING ELECTRODE SYSTEM.

e. SWITCHGEAR, SWITCHBOARDS, UNIT SUBSTATIONS, PANELBOARDS, MOTOR CONTROL CENTERS, ENGINE-GENERATORS, AUTOMATIC TRANSFER SWITCHES, AND

OTHER ELECTRICAL EQUIPMENT:

f. CONNECT THE EQUIPMENT GROUNDING CONDUCTORS TO THE GROUND BUS.

g. CONNECT METALLIC CONDUITS BY GROUNDING BUSHINGS AND EQUIPMENT GROUNDING CONDUCTOR TO THE EQUIPMENT GROUND BUS.

h. EXTERIOR: EXTERIOR TRANSFORMERS SUPPLYING INTERIOR SERVICE EQUIPMENT SHALL HAVE THE NEUTRAL GROUNDED AT THE TRANSFORMER SECONDARY.

PROVIDE A GROUNDING ELECTRODE AT THE TRANSFORMER.

i. SEPARATELY DERIVED SYSTEMS (TRANSFORMERS DOWNSTREAM FROM SERVICE EQUIPMENT): GROUND THE SECONDARY NEUTRAL AT THE TRANSFORMER. PROVIDE

A GROUNDING ELECTRODE CONDUCTOR FROM THE TRANSFORMER TO THE NEAREST COMPONENT OF THE GROUNDING ELECTRODE SYSTEM OR THE GROUND BAR

AT THE SERVICE EQUIPMENT.

4. RACEWAY

a. CONDUIT SYSTEMS

• GROUND ALL METALLIC CONDUIT SYSTEMS. ALL METALLIC CONDUIT SYSTEMS SHALL CONTAIN AN EQUIPMENT GROUNDING CONDUCTOR.

• NON_METALLIC CONDUIT SYSTEMS, EXCEPT NON-METALLIC FEEDER CONDUITS THAT CARRY A GROUNDED CONDUCTOR FROM EXTERIOR TRANSFORMERS TO

INTERIOR OR BUILDING-MOUNTED SERVICE ENTRANCE EQUIPMENT, SHALL CONTAIN AN EQUIPMENT GROUNDING CONDUCTOR.

• METALLIC CONDUIT THAT ONLY CONTAINS A GROUNDING CONDUCTOR, AND IS PROVIDED FOR ITS MECHANICAL PROTECTION, SHALL BE BONDED TO THAT

CONDUCTOR AT THE ENTRANCE AND EXIT FROM THE CONDUIT.

• METALLIC CONDUITS WHICH TERMINATE WITHOUT MECHANICAL CONNECTION TO AN ELECTRICAL EQUIPMENT HOUSING BY MEANS OF LOCKNUT AND BUSHINGS OR

ADAPTERS, SHALL BE PROVIDED WITH GROUNDING BUSHINGS. CONNECT BUSHINGS WITH A EQUIPMENT GROUNDING CONDUCTOR TO THE EQUIPMENT GROUND

BUS.

• FEEDERS AND BRANCH CIRCUITS: INSTALL EQUIPMENT GROUNDING CONDUCTORS WITH ALL FEEDERS, AND POWER AND LIGHTING BRANCH CIRCUITS.

• BOXES, CABINETS, ENCLOSURES, AND PANELBOARDS: BOND THE EQUIPMENT GROUNDING CONDUCTOR TO EACH PULLBOX, JUNCTION BOX, OUTLET BOX, DEVICE

BOX, CABINETS, AND OTHER ENCLOSURES THROUGH WHICH THE CONDUCTOR PASSES (EXCEPT FOR SPECIAL GROUNDING SYSTEMS FOR INTENSIVE CARE UNITS

AND OTHER CRITICAL UNITS SHOWN).

• BOXES, CABINETS, ENCLOSURES, AND PANELBOARDS: PROVIDE LUGS IN EACH BOX AND ENCLOSURE FOR EQUIPMENT GROUNDING CONDUCTOR TERMINATION.

b. RECEPTACLES SHALL NOT BE GROUNDED THROUGH THEIR MOUNTING SCREWS. GROUND RECEPTACLES WITH A JUMPER FROM THE RECEPTACLE GREEN GROUND

TERMINAL TO THE DEVICE BOX GROUND SCREW AND A JUMPER TO THE BRANCH CIRCUIT EQUIPMENT GROUNDING CONDUCTOR.

c. GROUND LIGHTING FIXTURES TO THE EQUIPMENT GROUNDING CONDUCTOR OF THE WIRING SYSTEM. FIXTURES CONNECTED WITH FLEXIBLE CONDUIT SHALL HAVE A

GREEN GROUND WIRE INCLUDED WITH THE POWER WIRES FROM THE FIXTURE THROUGH THE FLEXIBLE CONDUIT TO THE FIRST OUTLET BOX.

5. CORROSION INHIBITORS: WHEN MAKING GROUNDING AND BONDING CONNECTIONS, APPLY A CORROSION INHIBITOR TO ALL CONTACT SURFACES. USE CORROSION

INHIBITOR APPROPRIATE FOR PROTECTING A CONNECTION BETWEEN THE METALS USED.

6. CONDUCTIVE PIPING: BOND ALL CONDUCTIVE PIPING SYSTEMS, INTERIOR AND EXTERIOR, TO THE GROUNDING ELECTRODE SYSTEM. BONDING CONNECTIONS SHALL BE

MADE AS CLOSE AS PRACTICAL TO THE EQUIPMENT GROUND BUS.

7. LIGHTNING PROTECTION SYSTEM: BOND THE LIGHTNING PROTECTION SYSTEM TO THE ELECTRICAL GROUNDING ELECTRODE SYSTEM.

8. MAIN ELECTRICAL ROOM GROUNDING: PROVIDE GROUND BUS BAR AND MOUNTING HARDWARE AT EACH MAIN ELECTRICAL ROOM WHERE INCOMING FEEDERS ARE

TERMINATED, AS SHOWN ON THE DRAWINGS. CONNECT TO PIGTAIL EXTENSIONS OF THE BUILDING GROUNDING RING, AS SHOWN ON THE DRAWINGS.

9. EXTERIOR LIGHT POLES: PROVIDE 6.1 M (20 FEET) OF NO. 4 AWG BARE COPPER COILED AT BOTTOM OF POLE BASE EXCAVATION PRIOR TO POUR, PLUS ADDITIONAL

UN-SPLICED LENGTH IN AND ABOVE FOUNDATION AS REQUIRED TO REACH POLE GROUND STUD.

10. GROUND ROD INSTALLATAION:

a. FOR OUTDOOR INSTALLATIONS, DRIVE EACH ROD VERTICALLY IN THE EARTH, UNTIL TOP OF ROD IS 610 MM (24 INCHES) BELOW FINAL GRADE.

b. FOR INDOOR INSTALLATIONS, LEAVE 100 MM (4 INCHES) OF EACH ROD EXPOSED.

c. WHERE BURIED OR PERMANENTLY CONCEALED GROUND CONNECTIONS ARE REQUIRED, MAKE THE CONNECTIONS BY THE EXOTHERMIC PROCESS, TO FORM SOLID

METAL JOINTS. MAKE ACCESSIBLE GROUND CONNECTIONS WITH MECHANICAL PRESSURE-TYPE GROUND CONNECTORS.

4. RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS

A. GENERAL

1. DESCRIPTION: FURNISHING, INSTALLATION, AND CONNECTION OF CONDUIT, FITTINGS, AND BOXES, TO FORM COMPLETE, COORDINATED, GROUNDED RACEWAY SYSTEMS. RACEWAYS ARE REQUIRED FOR ALL WIRING UNLESS SHOWN OR SPECIFIED OTHERWISE.

2. THE TERM CONDUIT, AS USED IN THIS SPECIFICATION, SHALL MEAN ANY OR ALL OF THE RACEWAY TYPES SPECIFIED.

3. SUBMITTALS

a. SHOP DRAWINGS: SIZE AND LOCATION OF MAIN FEEDERS, SIZE AND LOCATION OF PANELS AND PULL-BOXES, LAYOUT OF REQUIRED CONDUIT PENETRATIONS THROUGH STRUCTURAL ELEMENTS, RACEWAY TYPES AND SIZES, CONDUIT BODIES, CONNECTORS AND FITTINGS, JUNCTION AND PULL BOXES, TYPES AND SIZES.

B. PRODUCTS

1. MATERIALS:

a. CONDUIT SIZE: IN ACCORDANCE WITH THE NEC, BUT NOT LESS THAN 13 MM (0.5-INCH) UNLESS OTHERWISE SHOWN.

2. MATERIALS - CONDUIT:

a. SIZE: IN ACCORDANCE WITH THE NEC, BUT NOT LESS THAN 13 MM (0.5-INCH).

b. RIGID STEEL CONDUIT (RMC): SHALL CONFORM TO UL 6 AND NEMA C80.1.

c. RIGID INTERMEDIATE STEEL CONDUIT (IMC): SHALL CONFORM TO UL 1242 AND NEMA C80.6.

d. ELECTRICAL METALLIC TUBING (EMT): SHALL CONFORM TO UL 797 AND NEMA C80.3. MAXIMUM SIZE NOT TO EXCEED 105 MM (4 INCHES) AND SHALL BE

e. FLEXIBLE METAL CONDUIT: SHALL CONFORM TO UL 1.

f. LIQUID-TIGHT FLEXIBLE METAL CONDUIT: SHALL CONFORM TO UL 360.

g. DIRECT BURIAL PLASTIC CONDUIT: SHALL CONFORM TO UL 651 AND UL 651A, HEAVY WALL PVC OR HIGH DENSITY POLYETHYLENE (PE).

h. SURFACE METAL RACEWAY: SHALL CONFORM TO UL 5.

3. MATERIALS - CONDUIT FITTINGS

a. RIGID STEEL AND INTERMEDIATE METALLIC CONDUIT FITTINGS: FITTINGS SHALL MEET THE REQUIREMENTS OF UL 514B AND NEMA FB1.

b. FITTINGS SHALL MEET THE REQUIREMENTS OF UL 514B AND NEMA FB1.

c. STANDARD THREADED COUPLINGS, LOCKNUTS, BUSHINGS, CONDUIT BODIES, AND ELBOWS: ONLY STEEL OR MALLEABLE IRON MATERIALS ARE ACCEPTABLE.

INTEGRAL RETRACTABLE TYPE IMC COUPLINGS ARE ALSO ACCEPTABLE.

d. LOCKNUTS: BONDING TYPE WITH SHARP EDGES FOR DIGGING INTO THE METAL WALL OF AN ENCLOSURE.

e. BUSHINGS: METALLIC INSULATING TYPE, CONSISTING OF AN INSULATING INSERT, MOLDED OR LOCKED INTO THE METALLIC BODY OF THE FITTING. BUSHINGS MADE

ENTIRELY OF METAL OR NONMETALLIC MATERIAL ARE NOT PERMITTED.

f. ERICKSON (UNION_TYPE) AND SET SCREW TYPE COUPLINGS: APPROVED FOR USE IN CONCRETE ARE PERMITTED FOR USE TO COMPLETE A CONDUIT RUN WHERE

CONDUIT IS INSTALLED IN CONCRETE. USE SET SCREWS OF CASE-HARDENED STEEL WITH HEX HEAD AND CUP POINT TO FIRMLY SEAT IN CONDUIT WALL FOR

POSITIVE GROUND. TIGHTENING OF SET SCREWS WITH PLIERS IS PROHIBITED.

g. SEALING FITTINGS: THREADED CAST IRON TYPE. USE CONTINUOUS DRAIN-TYPE SEALING FITTINGS TO PREVENT PASSAGE OF WATER VAPOR. IN CONCEALED WORK, INSTALL FITTINGS IN FLUSH STEEL BOXES WITH BLANK COVER PLATES HAVING THE SAME FINISHES AS THAT OF OTHER ELECTRICAL PLATES IN THE ROOM.

h. ELECTRICAL METALLIC TUBING FITTINGS:

• FITTINGS AND CONDUIT BODIES SHALL MEET THE REQUIREMENTS OF UL 514B, NEMA C80.3, AND NEMA FB1.

• ONLY STEEL OR MALLEABLE IRON MATERIALS ARE ACCEPTABLE.

• COMPRESSION COUPLINGS AND CONNECTORS: CONCRETE-TIGHT AND RAIN-TIGHT, WITH CONNECTORS HAVING INSULATED THROATS.

• SETSCREW COUPLINGS AND CONNECTORS: USE SETSCREWS OF CASE-HARDENED STEEL WITH HEX HEAD AND CUP POINT, TO FIRMLY SEAT IN WALL OF CONDUIT

FOR POSITIVE GROUNDING.

• INDENT-TYPE CONNECTORS OR COUPLINGS ARE PROHIBITED.

• DIE-CAST OR PRESSURE-CAST ZINC-ALLOY FITTINGS OR FITTINGS MADE OF "POT METAL" ARE PROHIBITED.

i. FLEXIBLE METAL CONDUIT FITTINGS:

• CONFORM TO UL 514B. ONLY STEEL OR MALLEABLE IRON MATERIALS ARE ACCEPTABLE.

• CLAMP-TYPE, WITH INSULATED THROAT.

j. LIQUID_TIGHT FLEXIBLE METAL CONDUIT FITTINGS:

• FITTINGS SHALL MEET THE REQUIREMENTS OF UL 514B AND NEMA FB1.

• ONLY STEEL OR MALLEABLE IRON MATERIALS ARE ACCEPTABLE.

• FITTINGS MUST INCORPORATE A THREADED GROUNDING CONE, A STEEL OR PLASTIC COMPRESSION RING, AND A GLAND FOR TIGHTENING. CONNECTORS SHALL

HAVE INSULATED THROATS.

k. DIRECT BURIAL PLASTIC CONDUIT FITTINGS: FITTINGS SHALL MEET THE REQUIREMENTS OF UL 514C AND NEMA TC3.

l. SURFACE METAL RACEWAY FITTINGS: AS RECOMMENDED BY THE RACEWAY MANUFACTURER. INCLUDE COUPLINGS, OFFSETS, ELBOWS, EXPANSION JOINTS, ADAPTERS, HOLD-DOWN STRAPS, END CAPS, CONDUIT ENTRY FITTINGS, ACCESSORIES, AND OTHER FITTINGS AS REQUIRED FOR COMPLETE SYSTEM.

4.CONDUIT SUPPORTS

a. PARTS AND HARDWARE: ZINC_COAT OR PROVIDE EQUIVALENT CORROSION PROTECTION.

b. INDIVIDUAL CONDUIT HANGERS: DESIGNED FOR THE PURPOSE, HAVING A PRE_ASSEMBLED CLOSURE BOLT AND NUT, AND PROVISIONS FOR RECEIVING A HANGER

ROD.

c. MULTIPLE CONDUIT (TRAPEZE) HANGERS: NOT LESS THAN 38 MM X 38 MM (1.5 X 1.5 INCHES), 12-GAUGE STEEL, COLD-FORMED, LIPPED CHANNELS; WITH NOT LESS

THAN 9 MM (0.375-INCH) DIAMETER STEEL HANGER RODS.

5. OUTLET, JUNCTION, AND PULL BOXES:

a. COMPLY WITH UL-50 AND UL-514A.

b. RUSTPROOF CAST METAL WHERE REQUIRED BY THE NEC OR SHOWN ON DRAWINGS.

c. SHEET METAL BOXES: GALVANIZED STEEL, EXCEPT WHERE SHOWN ON DRAWINGS.

C. EXECUTION

1. PENETRATIONS

a. CUT HOLES THROUGH CONCRETE AND MASONRY IN NEW AND EXISTING STRUCTURES WITH A DIAMOND CORE DRILL OR CONCRETE SAW. PNEUMATIC HAMMERS, IMPACT ELECTRIC, HAND, OR MANUAL HAMMER-TYPE DRILLS ARE NOT ALLOWED, EXCEPT WHEN PERMITTED WHERE WORKING SPACE IS LIMITED.

b. FIRESTOP: WHERE CONDUITS, WIREWAYS, AND OTHER ELECTRICAL RACEWAYS PASS THROUGH FIRE PARTITIONS, FIRE WALLS, SMOKE PARTITIONS, OR FLOORS, INSTALL A FIRE STOP THAT PROVIDES AN EFFECTIVE BARRIER AGAINST THE SPREAD OF FIRE, SMOKE AND GASES AS SPECIFIED IN SECTION FIRESTOPPING.

c. WATERPROOFING: AT FLOOR, EXTERIOR WALL, AND ROOF CONDUIT PENETRATIONS, COMPLETELY SEAL THE GAP AROUND CONDUIT TO RENDER IT WATERTIGHT, AS

SPECIFIED WITH APPROVED JOINT SEALANTS.

GENERAL NOTES

2. INSTALLATION

a. IN ACCORDANCE WITH NEC, NEMA, UL, AS SHOWN ON DRAWINGS, AND AS SPECIFIED HEREIN.

b. INSTALL CONDUIT AS FOLLOWS:

• IN COMPLETE MECHANICALLY AND ELECTRICALLY CONTINUOUS RUNS BEFORE PULLING IN CABLES OR WIRES.

• UNLESS OTHERWISE INDICATED ON THE DRAWINGS OR SPECIFIED HEREIN, INSTALLATION OF ALL CONDUITS SHALL BE CONCEALED WITHIN FINISHED WALLS, FLOORS, AND CEILINGS.

• FLATTENED, DENTED, OR DEFORMED CONDUIT IS NOT PERMITTED. REMOVE AND REPLACE THE DAMAGED CONDUITS WITH NEW CONDUITS.

• ASSURE CONDUIT INSTALLATION DOES NOT ENCROACH INTO THE CEILING HEIGHT HEAD ROOM, WALKWAYS, OR DOORWAYS.

• CUT CONDUITS SQUARE, REAM, REMOVE BURRS, AND DRAW UP TIGHT.

• DO NOT USE SUSPENDED CEILINGS, SUSPENDED CEILING SUPPORTING MEMBERS, LIGHTING FIXTURES, OTHER CONDUITS, CABLE TRAY, BOXES, PIPING, OR DUCTS TO

SUPPORT CONDUITS AND CONDUIT RUNS.

• SUPPORT WITHIN 300 MM (12 INCHES) OF CHANGES OF DIRECTION, AND WITHIN 300 MM (12 INCHES) OF EACH ENCLOSURE TO WHICH CONNECTED.

• CLOSE ENDS OF EMPTY CONDUITS WITH PLUGS OR CAPS AT THE ROUGH_IN STAGE UNTIL WIRES ARE PULLED IN, TO PREVENT ENTRY OF DEBRIS.

• SECURE CONDUITS TO CABINETS, JUNCTION BOXES, PULL-BOXES, AND OUTLET BOXES WITH BONDING TYPE LOCKNUTS. FOR RIGID STEEL AND IMC CONDUIT

INSTALLATIONS, PROVIDE A LOCKNUT ON THE INSIDE OF THE ENCLOSURE, MADE UP WRENCH TIGHT. DO NOT MAKE CONDUIT CONNECTIONS TO JUNCTION BOX

COVERS.

• CONDUIT BODIES SHALL ONLY BE USED FOR CHANGES IN DIRECTION, AND SHALL NOT CONTAIN SPLICES.

c. CONDUIT BENDS: MAKE BENDS WITH STANDARD CONDUIT BENDING MACHINES, CONDUIT HICKEY MAY BE USED FOR SLIGHT OFFSETS AND FOR STRAIGHTENING

STUBBED OUT CONDUITS, BENDING OF CONDUITS WITH A PIPE TEE OR VISE IS PROHIBITED.

d. LAYOUT AND HOMERUNS: INSTALL CONDUIT WITH WIRING, INCLUDING HOMERUNS, AS SHOWN ON DRAWINGS.

3. CONCEALED WORK INSTALLATION

a. IN CONCRETE:

• CONDUIT: RIGID STEEL, IMC, OR EMT. DO NOT INSTALL EMT IN CONCRETE SLABS THAT ARE IN CONTACT WITH SOIL, GRAVEL, OR VAPOR BARRIERS.

1) INSTALLATION OF CONDUIT IN CONCRETE THAT IS LESS THAN 75 MM (3 INCHES) THICK IS PROHIBITED.

b. ABOVE FURRED OR SUSPENDED CEILINGS AND IN WALLS:

• CONDUIT FOR CONDUCTORS 600 V AND BELOW: RIGID STEEL, IMC, OR EMT. MIXING DIFFERENT TYPES OF CONDUITS IN THE SAME SYSTEM IS PROHIBITED.

1) ALIGN AND RUN CONDUIT PARALLEL OR PERPENDICULAR TO THE BUILDING LINES.

2) CONNECT RECESSED LIGHTING FIXTURES TO CONDUIT RUNS WITH MAXIMUM 1.8 M (6 FEET) OF FLEXIBLE METAL CONDUIT EXTENDING FROM A JUNCTION BOX TO THE

FIXTURE.

3) FOR CONDUITS RUNNING THROUGH METAL STUDS, LIMIT FIELD CUT HOLES TO NO MORE THAN 70% OF WEB DEPTH. SPACING BETWEEN HOLES SHALL BE AT LEAST

457 MM (18 INCHES). CUTS OR NOTCHES IN FLANGES OR RETURN LIPS SHALL NOT BE PERMITTED.

4. EXPOSED WORK INSTALLATION

a. UNLESS OTHERWISE INDICATED ON DRAWINGS, EXPOSED CONDUIT IS ONLY PERMITTED IN MECHANICAL AND ELECTRICAL ROOMS.

b. CONDUIT FOR CONDUCTORS 600 V AND BELOW: RIGID STEEL, IMC OR EMT. MIXING DIFFERENT TYPES OF CONDUITS IN THE SYSTEM IS PROHIBITED.

c. ALIGN AND RUN CONDUIT PARALLEL OR PERPENDICULAR TO THE BUILDING LINES.

d. INSTALL HORIZONTAL RUNS CLOSE TO THE CEILING OR BEAMS AND SECURE WITH CONDUIT STRAPS.

5. WET OR DAMP LOCATIONS

a. USE RIGID STEEL OR IMC CONDUITS UNLESS AS SHOWN ON DRAWINGS.

b. PROVIDE SEALING FITTINGS TO PREVENT PASSAGE OF WATER VAPOR WHERE CONDUITS PASS FROM WARM TO COLD LOCATIONS, I.E., REFRIGERATED SPACES, CONSTANT-TEMPERATURE ROOMS, AIR-CONDITIONED SPACES, BUILDING EXTERIOR WALLS, ROOFS, OR SIMILAR SPACES.

6. MOTORS AND VIBRATING EQUIPMENT

a. USE FLEXIBLE METAL CONDUIT FOR CONNECTIONS TO MOTORS AND OTHER ELECTRICAL EQUIPMENT SUBJECT TO MOVEMENT, VIBRATION, MISALIGNMENT, CRAMPED

QUARTERS, OR NOISE TRANSMISSION.

b. USE LIQUID_TIGHT FLEXIBLE METAL CONDUIT FOR INSTALLATION IN EXTERIOR LOCATIONS, MOISTURE OR HUMIDITY LADEN ATMOSPHERE, CORROSIVE ATMOSPHERE, WATER OR SPRAY WASH_DOWN OPERATIONS, INSIDE AIRSTREAM OF HVAC UNITS, AND LOCATIONS SUBJECT TO SEEPAGE OR DRIPPING OF OIL, GREASE, OR WATER.

c. PROVIDE A GREEN EQUIPMENT GROUNDING CONDUCTOR WITH FLEXIBLE AND LIQUID-TIGHT FLEXIBLE METAL CONDUIT.

7. CONDUIT SUPPORTS

a. SUPPORT MULTIPLE CONDUIT RUNS WITH TRAPEZE HANGERS. USE TRAPEZE HANGERS THAT ARE DESIGNED TO SUPPORT A LOAD EQUAL TO OR GREATER THAN THE SUM OF THE WEIGHTS OF THE CONDUITS, WIRES, HANGER ITSELF, AND AN ADDITIONAL 90 KG (200 LBS). ATTACH EACH CONDUIT WITH U_BOLTS OR OTHER APPROVED

FASTENERS.

b. SUPPORT CONDUIT INDEPENDENTLY OF JUNCTION BOXES, PULL-BOXES, FIXTURES, SUSPENDED CEILING T_BARS, ANGLE SUPPORTS, AND SIMILAR ITEMS.

c. VERTICAL SUPPORTS: VERTICAL CONDUIT RUNS SHALL HAVE RISER CLAMPS AND SUPPORTS IN ACCORDANCE WITH THE NEC AND AS SHOWN. PROVIDE SUPPORTS FOR

CABLE AND WIRE WITH FITTINGS THAT INCLUDE INTERNAL WEDGES AND RETAINING COLLARS.

8. BOX INSTALLATION

a. BOXES FOR CONCEALED CONDUITS:

• FLUSH-MOUNTED.

• PROVIDE RAISED COVERS FOR BOXES TO SUIT THE WALL OR CEILING, CONSTRUCTION, AND FINISH.

b. IN ADDITION TO BOXES SHOWN, INSTALL ADDITIONAL BOXES WHERE NEEDED TO PREVENT DAMAGE TO CABLES AND WIRES DURING PULLING-IN OPERATIONS OR WHERE

MORE THAN THE EQUIVALENT OF 4-90 DEGREE BENDS ARE NECESSARY.

c. LOCATE PULLBOXES SO THAT COVERS ARE ACCESSIBLE AND EASILY REMOVED. COORDINATE LOCATIONS WITH PIPING AND DUCTWORK WHERE INSTALLED ABOVE

CEILINGS.

d. OUTLET BOXES MOUNTED BACK_TO_BACK IN THE SAME WALL ARE PROHIBITED. A MINIMUM 600 MM (24 INCH) CENTER-TO-CENTER LATERAL SPACING SHALL BE

MAINTAINED BETWEEN BOXES.

e. FLUSH-MOUNTED WALL OR CEILING BOXES SHALL BE INSTALLED WITH RAISED COVERS SO THAT THE FRONT FACE OF RAISED COVER IS FLUSH WITH THE WALL.

SURFACE-MOUNTED WALL OR CEILING BOXES SHALL BE INSTALLED WITH SURFACE-STYLE FLAT OR RAISED COVERS.

f. MINIMUM SIZE OF OUTLET BOXES FOR GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLES IS 100 MM (4 INCHES) SQUARE X 55 MM (2.125 INCHES) DEEP, WITH

DEVICE COVERS FOR THE WALL MATERIAL AND THICKNESS INVOLVED.

g. ON ALL BRANCH CIRCUIT JUNCTION BOX COVERS, IDENTIFY THE CIRCUITS WITH BLACK MARKER.

5. DISTRIBUTION SWITCHBOARDS

A. GENERAL

1. DESCRIPTION: FURNISHING, INSTALLATION, CONNECTION, AND TESTING OF THE LOW-VOLTAGE CIRCUIT-BREAKER DISTRIBUTION SWITCHBOARDS, INDICATED AS

SWITCHBOARD(S) IN THIS SECTION.

B. PRODUCTS

1. SHALL BE IN ACCORDANCE WITH IEEE, NEMA, NFPA, UL, AS SHOWN ON THE DRAWINGS, AND HAVE THE FOLLOWING FEATURES:

2. SWITCHBOARD SHALL BE A COMPLETE, GROUNDED, CONTINUOUS_DUTY, INTEGRAL ASSEMBLY, DEAD_FRONT, DEAD_REAR, SELF_SUPPORTING, INDOOR TYPE

SWITCHBOARD ASSEMBLY, TAMPERPROOF, WEATHERPROOF, OUTDOOR TYPE SWITCHBOARD ASSEMBLY AS DESIGNED. INCORPORATE DEVICES SHOWN ON THE DRAWINGS AND ALL RELATED COMPONENTS REQUIRED TO FULFILL OPERATIONAL AND FUNCTIONAL REQUIREMENTS.

3. RATINGS SHALL NOT BE LESS THAN SHOWN ON THE DRAWINGS. SHORT CIRCUIT RATINGS SHALL NOT BE LESS THAN THE AVAILABLE FAULT CURRENT SHOWN.

4. COORDINATE ALL REQUIREMENTS WITH THE ELECTRIC UTILITY COMPANY SUPPLYING ELECTRICAL SERVICE TO THE SWITCHBOARD. THE INCOMING ELECTRIC UTILITY

FEEDER AND REVENUE METERING INSTALLATION SHALL CONFORM TO THE REQUIREMENTS OF THE ELECTRIC UTILITY COMPANY.

5. TYPE 1: SWITCHBOARD SHALL BE FRONT ACCESSIBLE WITH THE FOLLOWING FEATURES:

6. TYPE 2: SWITCHBOARD SHALL BE REAR ACCESSIBLE WITH THE FOLLOWING FEATURES:

7. BUS BARS AND INTERCONNECTIONS

8. PROVIDE COPPER PHASE AND NEUTRAL BUSES, FULLY RATED FOR THE AMPERAGE AS SHOWN ON THE DRAWINGS FOR THE ENTIRE LENGTH OF THE SWITCHBOARD. BUS

LAMINATIONS SHALL HAVE A MINIMUM OF 6 MM (1/4 INCH) SPACING.

9. THE BUS AND BUS COMPARTMENT SHALL BE DESIGNED SO THAT THE ACCEPTABLE NEMA STANDARD TEMPERATURE RISES ARE NOT EXCEEDED.

10. MAIN BONDING JUMPER: AN UN-INSULATED COPPER BUS, SIZE AS SHOWN ON DRAWINGS, SHALL INTERCONNECT THE NEUTRAL AND GROUND BUSES, WHEN THE

SWITCHBOARD IS USED TO ESTABLISH THE SYSTEM COMMON GROUND POINT.

11. ALL BOLTS, NUTS, AND WASHERS SHALL BE ZINC-PLATED STEEL. BOLTS SHALL BE TORQUED TO THE VALUES RECOMMENDED BY THE MANUFACTURER.

12. MAKE PROVISIONS FOR FUTURE BUS EXTENSIONS BY MEANS OF BOLT HOLES OR OTHER APPROVED METHOD.

13. MAIN CIRCUIT BREAKERS

a. TYPE I OR TYPE II SWITCHBOARDS: PROVIDE MOLDED CASE MAIN CIRCUIT BREAKERS AS SHOWN ON THE DRAWINGS. CIRCUIT BREAKERS SHALL BE THE SOLID STATE

ADJUSTABLE TRIP TYPE.

E-002

ELECTRICAL GENERAL NOTES &

ABBREVIATIONS

TM JM

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 68486

TIMOTHY J. MUECK

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

14. FEEDER CIRCUIT BREAKERS

a. PROVIDE MOLDED CASE CIRCUIT BREAKERS AS SHOWN ON THE DRAWINGS.

b. NON-ADJUSTABLE TRIP MOLDED CASE CIRCUIT BREAKERS:

• MOLDED CASE CIRCUIT BREAKERS SHALL HAVE AUTOMATIC, TRIP FREE, NON-ADJUSTABLE, INVERSE TIME CHARACTERISTICS, AND INSTANTANEOUS MAGNETIC TRIP.

• BREAKER FEATURES SHALL BE AS FOLLOWS:

1. A RUGGED, INTEGRAL HOUSING OF MOLDED INSULATING MATERIAL.

2. SILVER ALLOY CONTACTS

3. ARC QUENCHERS AND PHASE BARRIERS FOR EACH POLE.

4. QUICK_MAKE, QUICK_BREAK, OPERATING MECHANISMS.

5. A TRIP ELEMENT FOR EACH POLE, THERMAL MAGNETIC TYPE WITH LONG TIME DELAY AND INSTANTANEOUS CHARACTERISTICS, A COMMON TRIP BAR FOR ALL

POLES AND A SINGLE OPERATOR.

6. ELECTRICALLY AND MECHANICALLY TRIP FREE.

7. AN OPERATING HANDLE WHICH INDICATES ON, TRIPPED, AND OFF POSITIONS.

8. LINE AND LOAD CONNECTIONS SHALL BE BOLTED.

9. AN OVERLOAD ON ONE POLE OF A MULTIPOLE BREAKER SHALL AUTOMATICALLY CAUSE ALL THE POLES OF THE BREAKER TO OPEN.

c. ADJUSTABLE TRIP MOLDED CASE CIRCUIT BREAKERS:

• PROVIDE MOLDED CASE, SOLID STATE ADJUSTABLE TRIP TYPE CIRCUIT BREAKERS.

• TRIP UNITS SHALL HAVE FIELD ADJUSTABLE TRIPPING CHARACTERISTICS AS FOLLOWS:

• LONG TIME PICKUP, LONG TIME DELAY, SHORT TIME PICKUP, SHORT TIME DELAY, INSTANTANEOUS, GROUND FAULT PICKUP, GROUND FAULT DELAY.

d. BREAKERS WITH SAME FRAME SIZE SHALL BE INTERCHANGEABLE WITH EACH OTHER.

15. ELECTRIC UTILITY COMPANY…