15
Instruction Booklet
IB022003EN
Effective April 2018
Revision #3
Instructions for installation, operation, and
maintenance of Type MVS-ND, metal-enclosed
switchgear assemblies: 4.76 kV or 15.0 kV class
EATON
www.eaton.com
DRAFTER
MODEL FILENAME
ENGINEER
MFG. ENG.
NEXT ASSY
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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 CORPORATION - CONFIDENTIAL 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
7819C35
3
7819C35
VC-W 5-15 KV SWGR
JOINT TAPING
D
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9
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MATERIALS
FILLER - A PUTTY-LIKE MATERIAL.TRADE NAMES: DUCTSEALER, DUCT SEAL,
SCOTCHFIL, EATON. NO. 53351BB AND 53351WX.
TAPE - HIGH VOLTAGE EPR INSULATING TAPE. TRADE NAME: SCOTCH 130C
TAPE, EATON. 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 WHICH IS WIDER THAN ONE INCH CONSISTING
OF ONE LAYER OR MULTIPLE LAYERS WRAPPED DIRECTLY ON TOP OF EACH
OTHER.
LAYER - INSULATING TAPE, 1 INCH WIDE, WRAPPED FROM ONE END OF THE
JOINT TO THE OTHER, SO EACH SUCCEEDING TURN LAPS THE PREVIOUS
TURN BY THE AMOUNT SPECIFIED IN THE METHODS PROCEDURE.
OVERLAP - A SPECIFIED DISTANCE MEASURED ALONG THE INSULATION
STARTING FROM THE POINT WHERE THE INSULATION ENDS
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 IF NECESSARY
3. APPLY FILLER OVER BARE CONDUCTOR AND HARDWARE TO COVER AND
SMOOTH OUT THE SURFACE. 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 6.00 X .030 THICK PAD #1 OVER JOINT WITH MINIMUM OF 1.0 INCH
OVERLAP ON PREINSULATION. APPLY 6.00 X .030 THICK PAD #2 OVER PAD #1
BUT STARTING ON RIGHT SIDE WITH 1.0 INCH OVERLAP ON PREINSULATION
SEE FIG. 2
5. APPLY 6.00 X .030 THICK PAD #3 OVER PADS #1 AND #2 AND CENTERED ON
JOINT PER FIG. 3
6. APPLY ONE LAYER OF 1.00 X .030 INSULATING TAPE USING 2/3 LAP AND
EXTENDING .75 INCH MINIMUM BEYOND THE PADS ON THE PREINSULATION
(FIG. 4).
2
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Figure 9. Thru-joint Field Taping Methods.
Table 8. Taping chart.
Switchgear Voltage
Pre-insulation or Pad Overlap Minimum
Insulating Tape
kV
in. (mm)
Lap of Tape
Layers
Number of Pads
Up to 5
1 .50 (38 .1)
0 .5
1
1
7 .5 and 15
1 .50 (38 .1)
0 .66
1
2
Responsibility of installer
•
For incoming or outgoing terminations, these approved materials
are not supplied by Eaton and must be obtained and installed by
others as identified above in the definitions .
•
For connections involving shipping splits within an assembly, or
connecting to a transformer, or to an AMPGARD MCC, or to an
MVA assembly, insulating materials will be supplied by Eaton only
if necessary . It is the responsibility of the installer to insulate the
connections in accordance with these instructions .
•
For an assembly that does not have continuous insulating sleeving
on the phase bus conductors, the cable connections, or bus
connections to other apparatus, insulation of these connections
must be made .
CAUTION
FAILURE TO INSTALL FIELD INSULATION WHERE NECESSARY IN
ACCORDANCE WITH THESE INSTRUCTIONS WILL COMPROMISE THE
ELECTRICAL RATINGS OF THE SWITCHGEAR ASSEMBLY. INSTALL FIELD
INSULATION TO MAINTAIN THE ELECTRICAL RATINGS.
