24
Instruction Booklet
IB02201004E
Effective October 2017
Revision #4
Instructions for installation, operation, and
maintenance of 38 kV type VacClad-W,
150 BIL switchgear indoor housings
EATON
www.eaton.com
Figure 33. T-joint Field Taping Methods.
DRAFTER
MODEL FILENAME
ENGINEER
MFG. ENG.
NEXT ASSY
TOOL REF.
REFERENCE
SHOP/GENERAL ORDER NO.
ENGINEERING CHANGE NOTICE NO.
UNLESS SPECIFIED TOLERANCES PER
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.
BY TAKING POSSESSION OF THIS DOCUMENT, THE RECIPIENT ACKNOWLEDGES AND AGREES THAT
THIS DOCUMENT CANNOT BE USED IN ANY MANNER ADVERSE TO THE INTERESTS OF EATON, AND
THAT NO PORTION OF THIS DOCUMENT MAY BE COPIED OR OTHERWISE REPRODUCED WITHOUT
THE PRIOR WRITTEN CONSENT OF EATON CORPORATION. IN THE CASE OF CONFLICTING
CONTRACTUAL PROVISIONS, THIS NOTICE SHALL GOVERN THE STATUS OF THIS DOCUMENT.
EATON C OR PORATION - CONFID ENTIAL AND PROPRIETARY
DATE
DATE
DATE
MODEL REV
SCALE
PROJECT NO.
PRODUCT
DWG NO.
PARTS LIST
REV
TITLE BLOCK REV - 4
TITLE
SHEET OF
THIRD ANGLE
PROJECTION
C
1
2
P. KIM
4/10/1991
NTS
7819C90
4
7819C90
VC-W SWGR
27KV & 38KV JOINT TAPING
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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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