Product Main

Specifications

Temperature classification is B. High mechanical property, stable dielectric property after immersing in water. It’s a kind of current fabric laminate with excellent and comprehensive property. Used as slot and wedge of motors, the insulating structural parts for electric machine and apparatus equipment.

Technical requirements are shown in table 1, 2, 3 and 4.
Table 1： Nominal thickness and tolerance

Nominal thickness
mm
Tolerance
mm
 
 Nominal thickness
mm
Tolerance
mm
0.4
±0.10
5.5
—
0.5
±0.12
6.0
±0.60
0.6
±0.13
6.5
—
0.8
±0.16
8.0
±0.72
1.0
±0.18
10.0
±0.82
1.2
±0.20
12.0
±0.94
1.5
—
14.0
±1.02
1.6
±0.24
16.0
±1.12
1.8
—
20.0
±1.30
2.0
±0.28
25.0
±1.50
2.5
±0.33
30.0
±1.70
3.0
±0.37
35.0
±1.95
3.5
—
40.0
±2.10
4.0
±0.45
45.0
±2.30
4.5
—
50.0
±2.45
5.0
±0.52
 
 
Note: 1. The other tolerances are negotiated by customer and supplier.
2. The tolerance of preferred thickness should adopt the bigger one if the one of preferred thickness for nominal thickness is not listed in the table.
3. Normal dimension: 960±15mm×1460±15mm、960±15mm×1960±15mm

 
 
Table 2：Technical requirements

No
Property
Unit
Normal Value
1
 
Flexural strength perpendicular to layer
At room temperature
MPa
≥340
150±2℃
2
Apparent flexural elastic modulus
MPa
≥(24000)
3
Compressive strength, perpendicular to layer
MPa
≥350
4
Impact strength parallel to layer (Charpy method)
kJ/m2
≥33
5
Impact strength parallel to layer.(Cantilever beam method)
kJ/m
≥34
6
Shear strength, parallel to the layer
MPa
≥（30）
7
Tensile strength
Lengthwise
MPa
≥(300)
Crosswise
8
Electric strength,perpendicular to the layer（at 90℃±2℃ oil.）
MV/m
Refer to table 3
9
Breakdown voltage, perpendicular to layer direction.
kV
≥35
10
Dielectric constant
Under 48Hz～62Hz
—
≤5.5
under1Hz
—
≤5.5
11
Dissipation factor
Under 48Hz～62 Hz
—
≤0.04
Under 1MHz.
—
≤0.04
12
Insulation resistance after immersing in water.
W
≥5.0×108
13
Comparative tracking index.
—
≥（200）
14
Heat resistance for long time.
—
≥（130）
15
Matin`s temperature
℃
under consideration
16
Density
g/cm3
1.7～1.9
17
Water absorption
%
Refer to table 4
Note: The value in the parentheses for Type 3240 is typical value. Not used as the requirement only for reference.

 
Table 3： Electrical strength perpendicular to layer direction

Mean thickness
mm
Normal Value                             Unit: MV/m
 
Mean thickness
mm
Normal Value                             Unit: MV/m
0.2
-
1.4
≥13.2
0.3
-
1.6
≥12.7
0.4
≥16.9
1.8
≥12.2
0.5
≥16.1
2.0
≥11.8
0.6
≥15.6
2.2
≥11.4
0.7
≥15.2
2.4
≥11.1
0.8
≥14.8
2.5
≥10.9
0.9
≥14.5
2.6
≥10.8
1.0
≥14.2
2.8
≥10.5
1.2
≥13.7
Above 3.0
≥10.2

 
 
Table 4：Water absorption

Mean thickness
mm
Normal Value                             Unit：mg
 
Mean thickness
mm
Normal Value                             Unit：mg
0.4
≤17
5
≤25
0.5
≤17
6
≤27
0.6
≤17
8
≤31
0.8
≤18
10
≤34
1.0
≤18
12
≤38
1.2
≤18
14
≤41
1.6
≤19
16
≤46
2.0
≤20
20
≤52
2.5
≤21
25
≤61
3
≤22
Processed by one side to 22.5
≤73
4
≤23