9
Instruction Booklet
IB182047EN
Effective February 2018
Arc flash limiter (AFL)
conversion system
EATON
www.eaton.com
Appendix A. Field taping of joints and
connections
m
WARNING
INSTALLATION OF THIS AFL CONVERSION SYSTEM MUST BE PERFORMED
ONLY BY QUALIFIED PERSONNEL THAT ARE TRAINED FOR THE
INSTALLATION
The figures contained in this Appendix give general rules to follow
when field taping joints and connections . These are provided for
reference only .
otee:
N
During the initial installation of the AFL Conversion System, all joints
and connections will made by qualified personnel that are trained for the
installation .
Figure 10. T-joint field taping methods.
Figure ??. T-joint Field Taping Methods.
DRAFTER
MODEL FILENAME
ENGINEER
ENGINEERING CHANGE NOTICE NO.
THIS DOCUMENT, INCLUDING THE DRAWING AND INFORMATION
CONTAINED THEREON, IS CONFIDENTIAL AND IS THE EXCLUSIVE
PROPERTY OF EATON CORPORATION, AND IS MERELY ON LOAN
AND SUBJECT TO RECALL BY EATON CORPORATION AT ANY TIME.
EATON CORPORATION - CONFIDENTIAL AND PROPRIETARY
DATE
DATE
MODEL REV
P. KIM
4/10/1991
RP
RE
TE
D
1
99
4
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1
MATERIALS
FILLER - A PUTTY-LIKE MATERIAL.TRADE NAMES: DUCTSEALER, DUCT SEAL, EATON. NO.
53351BB AND 53351WX.
INSULATING - HIGH VOLTAGE EPR INSULATING TAPE. TRADE NAME: SCOTCH 130C TAPE,
EATON. NO. 45151SE.
DEFINITIONS
JOINT - AREA TO BE COVERED WITH TAPE. CONSISTS OF BARE CONDUCTOR AND 1.5
INCHES OF ANY PRE-INSULATION NEXT TO THE BARE CONDUCTOR.
PRE - INSULATION - ANY INSULATING COVERING OR COATING SUCH AS EPOXY COATING
OR INSULATING TUBING ADJACENT TO AN EXPOSED CONDUCTOR PRIOR TO TAPING.
PAD - ANY INSULATING TAPE APPLIED WHICH IS WIDER THAN ONE INCH. INCLUDES A
BAND OF TAPE CONSISTING OF ONE OR MORE TURNS WRAPPED DIRECTLY ON TOP OF
EACH OTHER.
LAYER - INSULATING TAPE, 1 INCH WIDE, WRAPPED FROM ONE END OF THE JOINT TO
THE OTHER, (OR TO A PAD) SO EACH SUCCEEDING TURN LAPS THE PREVIOUS TURN BY
THE AMOUNT SPECIFIED IN THE CHART.
OVERLAP - A SPECIFIED DISTANCE MEASURED ALONG THE PRE-INSULATION STARTING
FROM THE POINT WHERE THE PRE-INSULATION ENDS AND THE EXPOSED CONDUCTOR
BEGINS.
METHODS
GENERAL
1. ELONGATE INSULATING TAPE 10 TO 25 PERCENT DURING APPLICATION TO INSURE A
SMOOTH, TIGHT FIT. ON PADS ELONGATE CORNERS ONLY.
2. SHOULD A TAPE ROLL EXPIRE, START THE NEW ROLL BY OVERLAPPING THE PREVIOUS
END BY .5 TURN.
"T"-JOINTS, WITH-HARDWARE
1. CLEAN AREA OF DIRT AND FOREIGN MATTER
2. WIPE PREINSULATION WITH ISOPROPYL ALCOHOL
3. APPLY FILLER OVER BARE CONDUCTOR AND HARDWARE TO COVER AND SMOOTH OUT
THE SURFACE. BLEND CONTOUR INTO PRE- INSULATION SURFACES. TRY TO PREVENT
AIR POCKETS. COVER CONDUCTORS AND HARDWARE WITH AT LEAST .12 INCH OF FILLER
PER FIG. 1.
4. APPLY 3.00X.030 THICK PAD #1 OVER CENTER OF JOINT WITH 1 1/4 LAPS (FIG. 2). APPLY
3.00 X .030 THICK PAD #2 STARTING .50 INCH FROM CENTER AND EXTENDING OVER
PREINSULATION AT LEAST 1.0 INCH WITH 1 1/4 LAPS. APPLY 3.00 X .030 THICK PAD #3
STARTING 1.00 FROM PAD #2 AT CENTER AND EXTENDING 1.00 IN. OVER PREINSULATION
PER FIG. 3.
5. APPLY (3) 6.00 IN. WIDE X 12 IN. LONG X .030 IN THICK PADS (PAD#4) CENTERED ON THE
MAIN BUS AND EXTENDING 1.50 IN. DOWN RISER PER FIG. 4.
6. APPLY ONE LAYER OF INSULATING TAPE (1.00X.030) USING 2/3 LAP AND EXTENDING
0.50 INCH MINIMUM BEYOND THE PADS ON THE PREINSULATION (FIG. 5).
7. APPLY A SECOND LAYER OF INSULATING TAPE (1.00X.030) USING 2/3 LAP AND
EXTENDING 0.50 INCH MIN. FOR (27KV) AND 1.50 MIN. FOR (38KV) BEYOND THE FIRST
LAYER ON THE PREINSULATION PER FIG. 5.
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PREINSULATION
PREINSULATION
PREINSULATION
PREINSULATION
PAD #1
FIG. 1: TYPICAL JOINT WITH .12 THK.
MIN. FILLER OVER BARE JOINT.
PREINSULATION
PREINSULATION
PAD #2
PAD #1
PAD #3
FIG. 2: TYPICAL JOINT WITH 3 IN.
WIDE X .030 TAPE OVER FILLER.
PREINSULATION
PAD #4
PREINSULATION
FIG. 3: TYPICAL JOINT WITH Pads #2 & #3
(3 IN. WIDE X .030) TAPE
OVER PAD #1 AND FILLER.
1.0
1.0
1.0
1.0
Fig 4: TYPICAL JOINT WITH PAD #4
(3) 6.0 X .030 PIECES OF TAPE.
PREINSULATION
PAD #3
PAD #4
PAD #1
FILLER
PAD #2
INSUL.
TAPE
FIG. 5: 2 LAYERS OF 1.0 x .030
TAPE WITH 2/3 OVERLAP.
9.0 (27 kV)
11.0 (38 kV)MIN.
LAP
MAIN BUS/RISER JOINT.