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01.4IB.46300
Installation
Figure 11 Insulation of Bus Bar
1/2W
“W”
“W”
1/2W
.048 (1.2) Approximate
Dimension (Tape Tension)
1 - Layer, 1/2 LAP = 2 Thicknesses
.096 (2.4) Approximate
Dimension (Tape Tension)
2 - Layers, 1/2 LAP = 4 Thicknesses (Shown)
3 - Layers, 1/2 LAP = 6 Thicknesses (Not Shown)
4 - Layers, 1/2 LAP = 8 Thicknesses (Not Shown)
Circular or Square Tubes are Taped
in the Same Manner as Rectangular Bars
HV Tape - 2” (50.8) or 4” (101.6) Wide
Rolls X 30 (9144) ft Long -
0282A3529P004 or P005
Diagram of 1/2 LAP Starting with
1 Full Turn - Apply with Mastic Side Down
NOTE: Overlap an Expired Roll by 1/2 Turn
Approximate Tensioned Dimensions
1.75 (44.4)
or
3.5 (88.9)
“A” + 1/4
Begin Taping at
“A” + 1/4” “A” = Contact Surface
Table F Insulation of Bus Bar
Insulation
Range
(volts)
Number
of Layers
Tape
Width
(inches)
Approx. Footage of Tape Required to
Insulate (1) Linear Foot of Bus Bar
(2” & 4” Wide Rolls are 30’ Long)
Bar Sizes (inches)
/ x 2
¼ x 2
¼ x 3
/ x 3
½ x 3
/ x 3
¼ x 4
/ x 4
½ x 4
/ x 4
¼ x 6
/ x 6
½ x 6
/ x 6
600V to
7200V
1 Layer •
½ Lap *
2 4 5 6 8 9 11 12
4 2 3 3 4 5 5 6
Note: Apply tape at medium tension to
produce a void-free uniform build-up
of tape. A medium tension stretches
a 0.030”x2” tape down to 0.024”x1/”
and 0.030”x4” down to 0.024”x3/”.
Apply with mastic side down.
* Apply 3 layers - / lap for conductors
passing through CT’s.
Figure 12 Single Bus Bar Connection Joint
Epoxy Insulation
Thermoplastic Sleeving
or Tape Insulation
“B” - 1/2 LAP
“A”
.50 (12.7)
Min
.50 (12.7)
Min
“C”
“C”
RB Putty *
Table G Insulation of Single Bus Bar
Connection Joint
Insulation
Level (kV)
Inner Filler
“A”
Outer Wrap
“B”
“C”
(inches)
Approx. Number Rolls
per Joint of HV Tape ∆
2” or 3”
Bars
4” or 6”
Bars
5 & 7.2
3 Layers
HV Tape ∆
2 Layers
HV Tape ∆
3
1 Roll HV
Tape ∆
2 Rolls
HV Tape ∆
Note: * Electrical grade rubber base putty
0282A3529 P008 in roll form will be
used to grade voids and smooth out
sharp edges of joints. This putty has
no insulation value.
1 roll is ½” x 1½” x 5’ long.
∆ High voltage insulating tape
0282A3529 P004 - Roll is .030 x 2” x 30’
long. Apply with mastic side down.
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