Characteristic and Application:
Temperature classification E. Higher dielectric property. It is used as insulating
structural parts for electric machine and apparatus equipments.
Standard: JB/T8149.1-2000
Table 1 Nominal thickness and tolerance
|
Nominal Thickness |
Tolerance |
Nominal Thickness |
Tolerance |
|
0.4 |
 0.07 |
8.0 |
0.47 |
|
0.5 |
0.08 |
10.0 |
0.55 |
|
0.6 |
0.09 |
12.0 |
0.62 |
|
0.8 |
0.10 |
14.0 |
0.69 |
|
1.0 |
0.12 |
16.0 |
0.75 |
|
1.2 |
0.14 |
20.0 |
0.86 |
|
1.6 |
0.16 |
25.0 |
1.00 |
|
2.0 |
0.19 |
30.0 |
1.15 |
|
2.5 |
0.22 |
35.0 |
1.25 |
|
3.0 |
0.25 |
40.0 |
1.35 |
|
4.0 |
0.30 |
45.0 |
1.45 |
|
5.0 |
0.34 |
50.0 |
1.55 |
|
6.0 |
|
|
|
Note:
1.The other tolerances can be negotiated by customers 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.
Table 2 Water Absorption
|
Mean Thickness
|
Water Absorption
mg |
Mean Thickness
|
Water Absorption
mg |
|
mm |
3020 |
3021 |
mm |
3020 |
3021 |
|
0.4 |
 165 |
160 |
5.0 |
342 |
235 |
|
0.5 |
167 |
162 |
6.0 |
382 |
250 |
|
0.6 |
168 |
163 |
8.0 |
470 |
285 |
|
0.8 |
173 |
167 |
10.0 |
550 |
320 |
|
1.0 |
180 |
170 |
12.0 |
630 |
350 |
|
1.2 |
188 |
174 |
14.0 |
720 |
390 |
|
1.6 |
204 |
182 |
16.0 |
800 |
420 |
|
2.0 |
220 |
190 |
20.0 |
970 |
490 |
|
2.5 |
240 |
195 |
25.0 |
1150 |
570 |
|
3.0 |
260 |
200 |
22.5 |
1380 |
684 |
|
4.0 |
300 |
220 |
|
|
|
Note: If the arithmetic average of the sample thickness is between
the both thickness listed in the above table, its requirement value
shall use the interpolation method to get. If the average is below 0.4mm,
the requirement value of water absorption shall use the one of 0.4mm.
If the nominal thickness is 25mm and the average of the laminates is over 25mm,
it the requirement value of 25mm shall be used. If the thickness of the laminates
is over 25mm, it shall be processed to 22.5 mm by one-side frame and the surface
shall be smooth.
Table 3 Electric Strength Perpendicular to the layer direction
|
Mean Thickness |
Electric Strength
MV / m |
Mean Thickness |
Electric Strength
MV / m
|
|
mm |
3020 |
3021 |
mm |
3020 |
3021 |
|
0.4 |
 19.0
|
15.7 |
1.6 |
14.3 |
10.1 |
|
0.5 |
18.2 |
14.7 |
1.8 |
13.9 |
9.6 |
|
0.6 |
17.6 |
14.0 |
2.0 |
13.6 |
9.3 |
|
0.7 |
17.1 |
13.4 |
2.2 |
13.4 |
9.0 |
|
0.8 |
16.6 |
12.9 |
2.4 |
13.3 |
8.8 |
|
0.9 |
16.2 |
12.5 |
2.6 |
13.2 |
8.6 |
|
1.0 |
15.8 |
12.1 |
2.8 |
13.0 |
8.5 |
|
1.2 |
15.2 |
11.4 |
3.0 |
13.0 |
8.4 |
|
1.4 |
14.7 |
10.7 |
|
|
| Note:
1.Electric strength perpendicular to layer direction at 90  2
oil can optional choose one of 20s raising voltage class by class and
the requirement of voltage resistance test for 1 min. If the material
is conform with one of the both methods, its electric strength perpendicular
to layer at 90  2 oil shall be considered to be also conform with the standard.
2.If the arithmetic average of the sample thickness is between the both
thicknesses listed in the above table, its requirement value shall
use the interpolation method to get. If the average is below
0.4mm, the requirement value of electric strength shall use the
one of 0.4mm, if the nominal thickness is 3mm and the average of the sample
thickness is over 3mm, the requirement value of 3mm shall be used.
3. 3020 type shall be pre-conditioned for 96h at 105  5 before tested, then
turned it to the hot oil at once. Table 4 Property Requirement
|
NO. |
Property |
Unit |
Normal thickness Used for the Test |
Requirement |
|
3020 |
3021 |
|
1 |
Flexural Strength,perpendicular to layer |
MPa |
1.6 |
120 |
120 |
|
2 |
Apparent flexural elastic modulus |
MPa |
1.6 |
(7000) |
(7000) |
|
3 |
Compressive strength,perpendicular to the layer |
MPa |
5 |
(300) |
(300) |
|
4 |
Shear strength, parallel to the layer |
MPa |
5 |
(10) |
(10) |
|
5 |
Tensile strength |
MPa |
1.6 |
(100) |
(100) |
|
6 |
Bonding strength |
N |
10 |
3600 |
3600 |
|
7 |
Electric strength, perpendicular to the layer, at 90   2  oil |
MV / m |
3 |
See Table 3 |
|
8 |
Breakdown voltage, parallel to the layer, at90   2  oil |
kV |
 3 |
 35 |
 20 |
|
9a |
Comparative dielectric constant, under 48Hz to 62Hz |
-- |
3 |
5.5 |
-- |
|
9b |
Comparative dielectric constant, under 1MHz |
-- |
3 |
-- |
5.5 |
|
10a |
Dissipation factor, under 48Hz to 62Hz |
-- |
3 |
0.05 |
-- |
|
10b |
Dissipation factor, under 1Hz |
-- |
3 |
-- |
0.05 |
|
11 |
Insulation resistance after immersing in water |
|
All |
-- |
1x  |
|
12 |
Comparative tracking index |
-- |
3 |
(100) |
(100) |
|
13 |
TI heat resistance for long time |
-- |
3 |
(120) |
(105) |
|
14 |
Deflection temperature under load |
|
|
Under consideration |
|
15 |
Density |
|
All |
(1.3 to 1.4) |
|
16 |
Water absorption |
mg |
All |
See Table 2 |
Note: The value in the parentheses is typical value. Not used as the
requirement only as the reference. Pre-conditioning for 9h at 105
before testing, then having the test at once. |
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