SECTION 16123
BUILDING WIRE AND CABLE
PART 1 - GENERAL
1.1
SUMMARY
A.
1.2
1.3
1.4
REFERENCES
A.
NECA (National Electrical Contractors Association) - Standard of Installation.
B.
NETA ATS (International Electrical Testing Association) - Acceptance Testing
Specifications for Electrical Power Distribution Equipment and Systems.
WIRING METHODS AND PRODUCT REQUIREMENTS
A.
Product Requirements: Use products as indicated and as follows:
1.
Use solid conductor for feeders and branch circuits 10 AWG and smaller.
2.
Use stranded conductors for control circuits.
3.
Use conductor not smaller than 12 AWG for power and lighting circuits.
4.
Use conductor not smaller than 16 AWG for control circuits.
5.
Use 10 AWG conductors for 20 ampere, 120 volt branch circuits longer than 75
feet feet.
B.
Wiring Methods:
1.
Use only building wire, Type THW or THHN/THWN insulation, in raceway.
2.
Do not use metal clad cable.
DESIGN REQUIREMENTS
A.
1.5
1.6
A.
Section 01330 - Submittal Procedures: Submittal procedures.
B.
Product Data: Submit for building wire.
C.
Test Reports: Indicate procedures and values obtained.
QUALIFICATIONS
Manufacturer: Company specializing in manufacturing products specified in this section
with minimum three years experience.
FIELD MEASUREMENTS
A.
1.8
Conductor sizes are based on copper.
SUBMITTALS
A.
1.7
Section includes building wire and cable.
Verify field measurements are as indicated.
COORDINATION
A.
Section 01300 - Administrative Requirements: Coordination and project conditions.
B.
Where wire and cable destination is indicated and routing is not shown, determine exact
routing and lengths required.
C.
Wire and cable routing indicated is approximate unless dimensioned. Include wire and
cable lengths within 10 ft of length shown.
PART 2 - PRODUCTS
2.1
BUILDING WIRE
A.
Product Description: Single conductor insulated wire.
B.
Conductor: Copper.
C.
Insulation: NFPA 70; Type THW or THHN/THWN insulation for feeders and branch
circuits.
PART 3 - EXECUTION
3.1
3.2
EXAMINATION
A.
Section 01300 - Administrative Requirements: Coordination and project conditions.
B.
Verify that interior of building has been protected from weather.
C.
Verify that mechanical work likely to damage wire and cable has been completed.
D.
Verify that raceway installation is complete and supported.
PREPARATION
A.
3.3
Completely and thoroughly swab raceway before installing wire.
INSTALLATION
A.
Route wire and cable as required to meet Project conditions.
B.
Install wire and cable in accordance with the NECA "Standard of Installation."
C.
Neatly train and lace wiring inside boxes, equipment, and panelboards.
D.
Special Techniques--Building Wire in Raceway:
1.
Pull all conductors into raceway at same time.
2.
Use suitable wire pulling lubricant for building wire 4 AWG and larger.
Special Techniques--Wiring Connections:
1.
Clean conductor surfaces before installing lugs and connectors.
2.
Make splices, taps, and terminations to carry full ampacity of conductors with no
perceptible temperature rise.
3.
Tape uninsulated conductors and connectors with electrical tape to 150 percent
of insulation rating of conductor.
4.
Use split bolt connectors for copper conductor splices and taps, 8 AWG and
larger.
5.
Use insulated spring wire connectors with plastic caps for copper conductor
splices and taps, 10 AWG and smaller.
E.
6.
7.
3.4
3.5
Use solid conductor for feeders and branch circuits 10 AWG and smaller.
Stranded conductors may be used for branch circuits 10 AWG and smaller.
However, if stranded conductors are in lieu of solid, then fork terminals shall be
crimped on for all device terminations. Bare stranded conductors shall not be
placed directly under the screws.
WIRE COLOR
A.
General
1.
For wire sizes 10 AWG and smaller - wire shall be colored as indicated below.
2.
For wire sizes 8 AWG and larger - identify wire with colored tape at all terminals,
splices and boxes. Colors to be as indicated below.
3.
Use black and red for single phase circuits at 120/240 volts, use black, red, and
blue for circuits at 120/208 volts single or three phase, use orange, brown, and
yellow for circuits at 277/480 volts single or three phase.
B.
Neutral Conductors: White. Where there are two or more neutrals in one conduit, each
shall be individually identified with the proper circuit. Provide a separate neutral
conductor for every circuit requiring a neutral. Common neutrals shall not be installed.
C.
Branch Circuit Conductors: Three or four wire home runs shall have each phase
uniquely color coded.
D.
Feeder Circuit Conductors: Each phase shall be uniquely color coded.
E.
Ground Conductors: Green for 6 AWG and smaller. For 4 AWG and larger, identify with
green tape at both ends and all visible points included in all junction boxes. Provide a
separate ground conductor in every raceway. Provide a separate ground conductor for
every branch and feeder circuit.
FIELD QUALITY CONTROL
A.
Section 1770 - Execution Requirements: Testing, adjusting, and balancing.
B.
Inspect and test in accordance with NETA ATS, except Section 4.
C.
Perform inspections and tests listed in NETA ATS, Section 7.3.1.
END OF SECTION