Download section 16123 - Northern Kentucky University

Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
SECTION 16123
BUILDING WIRE AND CABLE
PART 1 - GENERAL
1.1
1.2
1.3
SECTION INCLUDES
A.
Building wire and cable.
B.
Wiring connectors and connections.
RELATED SECTIONS
A.
Section 16111 - Conduit.
B.
Section 16130 - Boxes.
C.
Section 16195 - Identification.
REFERENCES
A.
1.4
1.5
ANSI/NFPA 70 1999 - National Electrical Code.
PROJECT CONDITIONS
A.
Wire and cable routing shown on Drawings is approximate
unless dimensioned. Route wire and cable as required to
meet Project Conditions.
B.
Where wire and cable routing is not shown, and destination
only is indicated, determine exact routing and lengths
required.
COORDINATION
A.
B.
Determine and maintain required separation between cable
and other work.
Install cable routing to avoid interference with other
work.
PART 2 - PRODUCTS
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500
Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
2.1
BUILDING WIRE AND CABLE
A.
Low Voltage (600 V and Below) Wire And Cable
1.
Description:
Single conductor insulated wire.
2.
Conductor: Stranded copper.
3.
Insulation Voltage Rating:
4.
Insulation:
5.
All wire and cable shall be UL listed.
6.
Acceptable manufacturers: Service Wire, ENCORE Wire,
Circle Wire, ALCAN Cable, BICC/General, ROME.
7.
For
auxiliary
systems
such
as
fire
alarm,
audio/visual, etc., use cable specified under the
appropriate heading or cable recommended by system
manufacturer.
600 volts.
ANSI/NFPA 70, Type THHN/THWN or XHHW.
PART 3 - EXECUTION
3.1
3.2
EXAMINATION
A.
Verify that
weather.
B.
Verify that work, the performance of which could damage
wire, has been completed.
wiring
will
be
protected
from
PREPARATION
A.
3.3
installed
Completely and thoroughly swab raceway before installing
wire.
WIRING METHODS
A.
Dry Interior Locations: Use building wire, Type THHN/THWN
or XHHW insulation, in raceway.
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500
Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
3.4
B.
Wet or Damp Interior Locations: Use only building wire,
Type XHHW-2 insulation, in raceway.
C.
Exterior Locations: Use only building wire, Type XHHW-2
insulation, in raceway.
D.
Underground Installations: Use only building wire, Type
XHHW-2 insulation, in raceway.
INSTALLATION
A.
Install products
instructions.
B.
Use conductor not smaller than 12 AWG for power and
lighting circuits unless otherwise noted on drawings.
C.
Use conductor not smaller than 14 AWG for control circuits
unless otherwise noted on drawings.
D.
All wires of any one circuit shall be run in the same
conduit. No more than three current carrying conductors
(exclusive of grounds and common neutrals) shall be run in
the same conduit, unless otherwise noted.
E.
Whenever possible, unless otherwise noted, utilize common
neutrals to minimize number of wires in lighting and
receptacle circuits. This will result in three wires for
two circuits in single phase
systems and four wires for three circuits in three phase
four wire systems. Common neutrals for two or more 20
ampere circuits shall be no. 10 AWG minimum wire size.
F.
Use 10 AWG conductors for 20 ampere, 120 volt branch
circuits longer than 100 feet.
G.
Use 10 AWG conductors for 20 ampere, 277 volt branch
circuits longer than 200 feet.
H.
Pull all conductors into raceway at same time.
I.
Use suitable wire pulling lubricant for building wire 4
AWG and larger. Use only PolyWater DynaBlue (e.g. 5 gal
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500
in
accordance
with
manufacturers
Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
drum p/n D-640) pulling lubricant on all cable pulls. The
use of Yellow 77, and other similar pulling lubes, is not
acceptable.
3.5
J.
Neatly train and lace wiring inside boxes, equipment, and
panelboards.
K.
Clean conductor surfaces before installing lugs and
connectors. ALL Medium Voltage Termination kits to be
installed by PROPERLY TRAINED PERSONNEL ONLY. A Properly
trained person is further defined by those having been
trained by Raychem or a Raychem Factory-Trained Technician
/ Representative. Validation of this training must be
documented or supportable, if requested, by a letter from
the technician / representative. Persons able to provide
proof of having more than ten (10) years experience
specifically in the application of Raychem medium & high
voltage cable termination kits may also be considered as
being qualified. In any event, the cable cleaning kits are
to be PolyWater p/n NFT-369/S.
L.
Make splices, taps, and terminations to carry full
ampacity of conductors with no perceptible temperature
rise.
M.
Use only long barrel compression lugs installed with a
minimum of two crimps per termination for copper conductor
splices and taps, 8 AWG and larger. CRIMPING IS TO BE
PERFORMED USING PROPER TOOLS - SUCH AS A DIEHY-voltage (<600 Volt) circuits, re-insulate
all uninsulated conductors and connectors with electrical
tape to 150 percent of insulation rating of conductor or
provide U.L. approved heat shrink tubing insulating
system, Raychem WCSM or approved equal. NOTE: There are no
applications in this installation which would require
splicing of medium voltage cables.
N.
Use insulated spring wire connectors with plastic caps for
copper conductor splices and taps, 10 AWG and smaller.
Fixed spring connectors and self-stripping tap connectors
shall not be used.
INTERFACE WITH OTHER PRODUCTS
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500
Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
3.6
A.
Identify wire and cable as per provisions of Section
16195.
B.
Identify each conductor with its circuit number or other
designation indicated on Drawings.
FIELD QUALITY CONTROL
A.
Inspect wire for physical damage and proper connection.
B.
Measure tightness of bolted connections and compare torque
measurements with manufacturer's recommended values.
C. Verify continuity of each feeder and branch circuit
conductor. Perform high-resistance test (Megger) on all
primary motor load and distribution panel circuits in
accordance with NETA Recommended Acceptance Testing
Specifications.
D. Properly torque and perform low-resistance readings
(Ductor) readings on all cable to conductor, cable to bus,
or bus to bus splice plate connections. ALL torqued and
tested connection points shall be identified by a mark
(black
surface, across the lug (if applicable), across the flat
washer - lock washer and head of the bolt. If a connection
is inspected and found not to have been marked - retorquing and re-testing will be required. No exceptions.
E. All medium voltage cables shall be installed utilizing a
tugger having a ft-lb gauge to ensure that at no time
recommended levels.
F.
tested
utilizing a 5 KV DC high-resistance test set (Megger) after
pulling and prior to termination kit application. After
termination kit application, the completed installation
shall be tested in accordance with NETA Recommended
Acceptance Testing Specifications utilizing a suitable NIST
traceably
DC
Overpotential
Test
Set
(DC
Hi-Pot).
Appropriate test reports shall be generated in accordance
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500
Department for Facilities Management
Frankfort Kentucky
New Power Plant for
Northern Kentucky University
with testing specifications and will include such
information as temperature, humidity, etc..
Final
acceptance shall be by engineer approval.
END OF SECTION
BUILDING WIRE AND CABLE
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December 02, 2004
NKU01.039500