| Customization: | Available |
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| Application: | Insulators, Electrical Winding Insulation, Motor |
| Color: | Green, White, Black |
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| ITEMS | Unit | 3721 | NEMA C | NEMA CE | NEMA L | NEMA LE | |
| Density | ≥ | g/cm3 | 1.25-1.40 | 1.25 | 1.40 | 1.25 | 1.40 |
| Water absorption | ≤ | % | 1.0 | 2.0 | 1.0 | 1.2 | 1.0 |
| Flexural strength | ≥ | MPa | 118 | 110 | 90 | 110 | 83 |
| Tensile strength | ≥ | MPa | 78 | -- | -- | -- | |
| Compression strength (Axial) | ≥ | MPa | -- | 131 | 138 | 131 | 138 |
| Insulation resistance parallel to laminations A: under normal |
≥ |
1.0 x 108 |
-- |
-- |
--- |
-- |
|
| Breakdown voltage , parallel in transformer oil @ 20 ± 5ºC | ≥ | KV | 10 | -- | 10 | -- | 10 |
| Flammability | -- | -- | -- | -- | -- | ||
| Color | -- | -- | Natural | Natural | Natural | Natural | Natural |
| Properties | Unit | Grade | |||||
| Phenolic paper laminated tube | |||||||
| Inside diameter(5-25mm) | Inside diameter(>25mm) | ||||||
| Density | g/cm3 | ≥1.03 | ≥1.1 | ||||
| Water absorption rate | % | Wall thickness 3mm ≤8 | |||||
| Temperature grade | ºC | E glass (120ºC) | E glass (120ºC) | ||||
| Thermostability(24h) | ºC | 120ºC | |||||
| Flexural strength | MPa | ≥50 | ≥60 | ||||
| Bonding strength | MPa | ≥70 | ≥70 | ||||
| Compressive strength | MPa | ≥50 | ≥60 | ||||
| Dissipationfactor | 50Hz | ≤0.03 | ≤0.03 | ||||
| Dielectric strength perpendicular to laminations(withstand voltage) (in 90±2ºC/5min transformer oil) |
kV/mm | Wall thickness(mm) | Units kV |
Wall thickness(mm) | Units kV |
||
| 1.5-2.5 | ≥8.5 | 1.5-2.5 | ≥8.5 | ||||
| >2.5-3.5 | ≥8.0 | >2.5-3.5 | ≥8.0 | ||||
| >3.5-4.5 | ≥7.0 | >3.5-4.5 | ≥7.0 | ||||
| >4.5-6 | ≥6.5 | >4.5-6 | ≥6.5 | ||||
| >6-9 | ≥6.0 | >6-9 | ≥6.0 | ||||
| Dielectric break down parallel to laminations (in 90±2ºC/5min transformer oil) | kV | ≥20 | ≥25 | ||||
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