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Fibre
Glass Sleevings
Unvarnished
Fiber Glass Unvarnished
Sleevings are closely braided from E-Type fiber glass yarn
having low alkali content and superior electrical and heat
resistance. It can be used for continous application at 350oC.
It has good electrical insulation, high heat and fire resistance,
good thermal conductivity, low moisture absorption.
These are largely used for manufacturing Varnished Fibre Glass
Sleevings |
 |
Varnished
Class B
This kind of Fiber Glass
Sleeving is made from non alkali Fibre Glass Sleeving Coated
with Varnishes of Various Types of Synthetic Resin based,
Drying Oil and Other substance suitable for Class B Application
These are available in Size: 0.5 mm to 50 mm Bore |
Technical
Specifications
| Thermal
Endurance |
130o |
| Varnish
Stability |
No
running of varnish coat when tested at 100oC
for 72 hours. |
| Bending
after heat at 130oC, 96 HRS |
No
cracking or detaching. |
| Insulation
Resistance. |
1.0
x 109 |
| Proof
Voltage at 50Hz for one minute |
At
room Temp : 3.00 kv |
At
130oC : 2.00 kv |
| Colour |
Dark
Yellow Natural |
Red,
Yellow, Blue & Black. |
|
Size
& Tolerance
| Bore |
Wall
Thickness |
| Normal
Diameter- mm |
Tolerances
- mm |
Minimum
- mm |
Maximum
- mm |
| 0.5,
0.8 |
-
00 + 0.25 |
0.20 |
0.50 |
| 1,
1.25, 2.5 |
+
0.25 |
0.20 |
0.65 |
| 3
to 19 |
+
0.50 |
0.30 |
0.75 |
| 20
- 25 |
+
0.50 |
0.30 |
1.00 |
|
Applications
suitable for Class B, F,
H insulation, AC & DC Induction Motor, Transformers, Ovens,
Generators, Electrical Instruments & Other Electronic
Instruments.
|
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Fibre
Glass Cloth & Tape
Unvarnished
Woven Glass Cloth made
from continous filament glass fiber yarn E-Type having resin
compatible surface and higher tensile strength, lower density.
Due to high heat resistance and tensile strength, it is largely
used in manufacturing of Epoxy laminated sheet, Tubes and
other electrical and heat equipments. |
 |
Varnished
Class B
Fiber Glass
Cloth are made from fiber glass woven cloth and treated with
varnishes of various types synthetic resin based, drying oils
and other substances suitable for use as electrical insulation
at 130o C temperatures.
Fiber
Glass Tapes Varnished Class B are available in straight cut
& Bias-cut in 50 mts length & 0.13 mm to 0.25 mm thickness,
width 10 mm to 90 mm subject to requirement.
Varnished
glass cloth & Tape is used as slot insulation in AC /
DC Induction Motors, as phase separator and layer insulation
in transformer, Switchgear and electrical instruments and
various other applications. |
Technical
Specifications
Normal
Thickness
mm |
Thickness
Tolerance
mm |
Proof
Voltage Test 1 Minute 36 mm &
76 mm
KY |
Minimum
Tensile STR.
kg
/ cm width |
Minimum
Tearing Strength
gf |
| Min |
Max |
Warp |
Weft |
Warp |
Weft |
| 0.13 |
0.11 |
0.14 |
3.5 |
8.9 |
5.4 |
80 |
60 |
| 0.15 |
0.13 |
0.17 |
4.25 |
8.9 |
5.4 |
80 |
60 |
| 0.18 |
0.16 |
0.19 |
5.00 |
8.9 |
5.4 |
120 |
90 |
| 0.25 |
0.23 |
0.28 |
6.50 |
11.5 |
8.0 |
120 |
90 |
|
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Varnished
Class F
Fiber
Glass woven cloth made from continuous filament fibre yarn
E-Type with alkali free yarn and treated with varnishes
of various type mainly polyurethane and isopthalate base
suitable for 155o C temperatures.
|
Technical
Specifications
Normal
Thickness
mm |
Tolerance
on Thickness
mm |
Electric
Strength Proof Volt.Test One Minute KV |
Minimum
Tensile strength
kgf/cm
width |
Minimum
Tearing strength
gf. |
| Min |
Max |
Warp |
Weft |
Warp |
Weft |
| 0.13 |
0.11 |
0.14 |
3.00 |
8.0 |
5.4 |
80 |
60 |
| 0.15 |
0.13 |
0.17 |
3.75 |
8.9 |
5.4 |
80 |
60 |
| 0.18 |
0.16 |
0.19 |
4.50 |
8.9 |
5.4 |
120 |
90 |
| 0.25 |
0.23 |
0.28 |
5.50 |
11.5 |
8.0 |
120 |
90 |
Due to high
heat resistance Tapes & Cloth used in field coil, slot
& layer insulation in motors, generators, transformers
and other electrical & heat equipments. |
|
Varnished
Class H
Fibre
Glass Woven Cloth when treated with varnishes of various type
silicon resin based suitable for 180oC temperatue
has good flexibility with higher mechanical strength and also
very much moisture resistance and water repellent. |
Technical
Specifications
| Thickness
mm |
Thickness
Tolerance mm |
Weight
g/m2 |
Elongation
Rupture % app. |
Breakdown
Voltage 50 hz after 96 hours in 80% |
Volume
Resistivity 96 hours in 80% RH 25oC mR |
Dielectric
loss factor tan delta 1 khz at 150oC |
| 0.10 |
+-0.010 |
140 |
2 |
6 |
1
x 1013 |
0.01 |
| 0.15 |
+-0.015 |
205 |
2 |
6.5 |
1
x 1013 |
0.01 |
| 0.20 |
+-0.020 |
260 |
2 |
6 |
1
x 1013 |
0.01 |
Applications
HIgh Tension application, dry type
transformers, generators, traction motors & heat equipments.
|
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Polyester
Woven Tape
This kind of tape is manufactured from Continous Filament
of Polyester Yarn having properties like higher tensile strength,
lower index of refraction & Polyester Tape having flexible,
soft and good trankability.
It is largely used as binding
of field coil in induction motor, transformers, stabilizers
& electrical instruments.
These are available in Width of 6mm to 25mm |
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Fibre
Glass Cord
Fibre Glass Cords are manufactured from E-type fiber
glass yarn twisted in twisting machine known as Twisted Cord.
When these are Braided on Braiding Machine 55 they are known
as Braided Cords.
It can be supplied in Varnished & Unvarnished State.
Due to high mechanical and heat resistence strength, it is
largely used to bind field coil with stator in Rotary Machine
such as Electric Motor, Generator, Alternator, Transformer
& many other application
These Cords are in continous length wound on Wooden Reels.
|
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Fibre
Glass Flexible Copper Cable
The electrolytic copper
wire conducter are bunched to require cross section area and
insulated with varnished polyethylene - terephthalate (PETP)
fabric tape with an external braid with fiber glass impregnated
with synthetic varnishes suitable for use at B, F & H
class of insulations.
These cables are available in standard 50 Mtrs and 100 Mtrs
length & Red, Blue, Yellow & Black Colours |
Technical
Specifications
|
Normal
Area
Sq
mm |
No.Of
Wire
mm |
DIA.
of Wire
mm |
Apx
DIA of Conductor
mm |
No
& DIA of Conductor
mm |
Current
Rating
AC |
| 0.50 |
16 |
0.20 |
0.93 |
16
x 0.20 |
5 |
| 0.75 |
24 |
0.20 |
1.14 |
24
x 0.20 |
9 |
| 1.00 |
32 |
0.20 |
1.32 |
32
x 0.20 |
12 |
| 1.50 |
30 |
0.25 |
1.60 |
30
x 0.25 |
16 |
| 2.50 |
50 |
0.25 |
2.00 |
50
x 0.25 |
20 |
| 4.00 |
56 |
0.30 |
2.60 |
56
x 0.30 |
27 |
| 6.00 |
84 |
0.30 |
3.60 |
84
x 0.30 |
34 |
| 10.00 |
80 |
0.40 |
4.60 |
80
x 0.40 |
44 |
| 16.00 |
126 |
0.40 |
5.70 |
126
x 0.40 |
61 |
| 25.00 |
196 |
0.40 |
7.10 |
196
x 0.40 |
69 |
| 35.00 |
276 |
0.40 |
8.50 |
276
x 0.40 |
88 |
| 50.00 |
396 |
0.40 |
10.30 |
396
x 0.40 |
116 |
| 70.00 |
360 |
0.50 |
12.40 |
360
x 0.50 |
215 |
| 95.00 |
475 |
0.50 |
14.50 |
475
x 0.50 |
260 |
| 120.00 |
608 |
0.50 |
16.00 |
608
x 0.50 |
305 |
| 150.00 |
756 |
0.50 |
16.50 |
756
x 0.50 |
355 |
Applications
AC & DC Insulation Motors, Generators,
Transformers, Blast Furnace, Coke Oven, Ships, Nuclear &
Thermal Power Station, Boilers & Many other electrical &
heat equipments.
|
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Resi
Glass Tape
Unique PG-20 TAPE
is made of an unidirectional layer of cabled glass yarns impregnated
under tension with a modified thermo setting resin for class
"H" Insulation.
Unique PG-20 TAPE is supplied in "B" stage semi-cured
Resin Systems. The free flow charecteristic of the resin avoids
air space in the band and there by improves heat dissipation
factor, and greatly adds its stability under all operating
conditions.
Designed for use as banding
restrain on Traction Armatures, large generators, and other
rotating electrical machines, It can also be used for the
banding of transformer cores & Transformer Tie-loops. |
Technical
Specifications
| Class
Of Insulation |
H-Class |
| Type
of Resin |
Modified
thermo setting Resin |
| Thickness |
0.3
+ 0.05 mm. |
| Width |
20
+ 2 mm. |
| Tensile
strength uncured 'B' Stage |
180N
/ MM Width |
| Elongation |
1
to 3% |
| Yarn
ends per 10 MM |
30
+ 2 |
| Resin
content |
28%
+ 3% |
| Minimum
curing hours at: 130o C
Minimum
curing hours at: 150o C |
5
3 |
| Storage
Requirement Temperature |
below
100o C |
| Shelf
Life |
6
months from the date of manufacture. |
|
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