Phenolic paper tubes
Characteristics: The tubes made from cellulose paper as a basis and phenolformaldehyde resin as a binder. This tubes are used like insulating and constructive material for various electrical equipment construction.
The tubes are produced from inside diameter 5,2 mm. The wall thickness is from 2 mm, the tube length is 1050 mm.
Machining: The tubes are machined by cutting, milling, drilling, turning.
| Type acc. to EN-60893 | Unit | PFCP 21 | PFCP 22 |
|---|---|---|---|
| Used name | Phenolic paper tube | Phenolic paper tube | |
| Type according to DIN 7735 | Hp 2065 | Hp 2066 | |
| Type according to NEMA | X | XX | |
| Reinforcement | paper | paper | |
| Resin | phenol | phenol | |
| MECHANICAL PROPERTIES | |||
| Flexural strength flatwise perpendicular to laminations (at 20°C) | MPa | 160 | 150 |
| Tensile strength | MPa | 155 | 140 |
| Cohesion of layers | MPa | 170 | 200 |
| DIELETRIC PROPERTIES | |||
| Dielectric strength perpendicular to layers in oil 90°C | kV/mm | - | 13,3 |
| Breakdown voltage parallel to laminations | kV | 29 | 60 |
| Dissipation factor tg | |||
| - at 50 Hz | - | - | |
| - at 1 MHz | - | - | |
| Permittivity at 1MHz | - | - | |
| Insulation resistance after immersion in water | MΩ | 2x102 | 1 |
| PHYSICAL PROPERTIES | |||
| Density | g/cm3 | 1,1 - 1,2 | 1,1 - 1,2 |
| Temperature index (TI) | 120 | 120 | |
| Absorbency (for 3 mm thickness) | mg/cm3 | 7,1 | 7,8 |
| Flammability (category) | - | - | |