3640 epoxy tube - transformer insulation tube
3640 epoxy tube - transformer insulation tube:
•Light weight (25% steel, 70% aluminium).
•High strength
•It can be very durable in corrosive environments.
•Not easily deformed, scratched or ruptured
•Suitable for transparent radome and radio sleeve.
•Suitable for electrical and thermal insulation.
•Heat resistant grades are F (150 degrees), H (180 degrees), C (220 degrees), 250 degrees or more
•Flame retardant (UL94:V0.V1)
•Waterproof
•You can choose colors (light green is the natural color, other colors can be customized).
Table 1, unit (mm)
| Nominal internal | Min Wall-thickness | Bore tolerance | Wall-thickness Wall-thickness |
| 6～30 | 3.6 | c0.30 | ±0.30 |
| 30～80 | 4.0 | ±0.40 | ±0.40 |
| 80～150 | 5.0 | ±0.50 | ±0.50 |
Nominal length and tolerance are shown in Table 2
Table 2, unit (mm)
|
Nominal length |
Tolerance |
|
900 |
±5 |
|
490 |
±2 |
|
320 |
±1 |
Physical, mechanical, and dielectric properties are shown in Table 3
Table 3, unit (mm)
|
Number |
Index name |
Unit |
Index |
|
One |
Specific gravity, no less than |
1.40 |
|
|
Two
|
Bending strength, no less than |
Kgf/cm2 |
1800 |
|
Three |
Tensile strength |
Kgf/cm2 |
700 |
|
Four |
Shear strength |
Kgf/cm2 |
150 |
|
Five |
Volume resistivity, no less than |
Ω · cm |
|
|
Normal time |
1012 |
||
|
After soaking |
1010 |
||
|
Six |
Parallel layer to layer insulation resistance, no less than |
Ω |
|
|
Normal time |
1010 |
||
|
After soaking |
107 |
||
|
Seven |
Tangent of dielectric loss angle at frequency 50Hz, no higher than |
0.030 |
|
|
Eight |
Vertical layer to withstand voltage, at 90 + 2 degrees Celsius transformer oil, pressure 5 minutes |
Kv |
|
|
Wall-thickness1.5mm |
12 |
||
|
Wall-thickness2.0mm |
14 |
||
|
Wall-thickness2.5mm |
16 |
||
|
Wall-thickness3.0mm |
18 |
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