Tubes
Round Rolled Epoxy Glass Cloth Tube
Product Name:Round Rolled Epoxy Glass Cloth Tube
Product Classification: Tubes
Laminated Tube |
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Units |
Grade |
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3520 Phenolic Paper Laminated Tube |
3526 Phenolic Cloth Laminated Tube |
3640 Epoxy Glass Cloth Laminated Tube |
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Inside diameter |
Inside diameter |
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Density |
g/cm3
|
≥1.03 |
≥1.10 |
1.04-1.20 |
≥1.40 |
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Water absorption |
% |
Wall thickness 3mm≤8 |
≤4 |
— |
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Thermostability(24h) |
℃ |
120 |
120 |
130 |
— |
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Flexural strength |
Mpa |
≥50.0 |
≥60.0 |
≥80 |
≥160 |
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Compressive strength |
Mpa |
≥50.0 |
≥60.0 |
≥45 |
≥50 |
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Shear strength |
Mpa |
— |
— |
— |
≥12 |
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Surface resistance |
Under normal condition |
WΩ |
— |
— |
≥1.0×108
|
— |
|
In case of humidity |
— |
— |
≥1.0×107
|
— |
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Volume resistivity |
Under normal condition |
Ω·m |
— |
— |
≥1.0×107
|
≥1.0×1010
|
|
In case of humidity |
— |
— |
≥1.0×105
|
— |
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Impregnated in water |
— |
— |
— |
≥1.0×108
|
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Insulation resistance |
Under normal condition |
Ω |
— |
— |
— |
≥1.0×1010
|
|
Impregnated in water |
— |
— |
— |
≥1.0×107
|
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Dissipation factor |
50Hz |
— |
≤0.03 |
≤0.03 |
— |
≤0.03 |
|
Dielectric strength perpendicular to laminations(withstand voltage)(in 90±2℃/5min transformer oil) |
MV/m |
Wall thickness |
≥8.5 |
≥35 in20℃transformer oil |
Wall thickness(mm) |
Units |
|
≥8.0 |
1.5 |
(kv) |
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≥7.0 |
2.0 |
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≥6.5 |
2.5 |
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≥6.0 |
3.0 |
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Dielectric break downparallel to laminations(in 90±2℃/5min transformer oil) |
kV |
— |
≥25 |
— |
≥25 |
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Surface withstand voltage(in case of humidity, under normal condition air, withstand voltage 1min) |
kV |
— |
≥12 |
— |
≥12 |
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