Phenolic paper sheets
Sheets are made of cellulose paper as reinforcement and phenol formaldehyde resins as a binder.
Application: Insulating walls in transformers construction, various structural elements, covers, inserts. For high electrical and mechanical strength are these materials suitable for production of insulating rods and electrical switchboards components.
| Typ dle EN-60893 | Unit | PFCP 201 | PFCP 202 | PFCP 206 | EPCP 201 | |
|---|---|---|---|---|---|---|
| Used name | Kartit | Kartit | Kartit | Melamin FR3 | ||
| Type according to DIN 7735 | Hp 2061 | Hp 2061.5 | Hp 2062.8 | Hp 2361.1 Hp 2361 | ||
| Type according to NEMA | X / XP | XX | XXXPC | FR-3 | ||
| Reinforcement | Paper | Paper | Paper | Paper | ||
| Resin | phenol | phenol | phenol | epoxid | ||
| Mechanical properties | ||||||
| Flexural strength flatwise perpendicular to laminations (at 20°C) | MPa | 230 | 200 | 190 | 210 | |
| Modulus of elasticity in flexure | MPa | 13x103 | 12x103 | 9x103 | 9x103 | |
| Tensile strength | MPa | 180 | 160 | 120 | 140 | |
| Compressive strength perpendicular to laminations | MPa | 390 | 360 | 250 | 160 | |
| Notch impact strength parallel to lamination (Charpy) | KJ/m2 | - | - | - | - | |
| Shearing strength parallel to laminations | MPa | 35 | 30 | 45 | - | |
| Dielectric properties | ||||||
| Dielectric strength perpendicular to layers in oil 90°C | kV/mm | - | 16,7 | 8,6 | 20 | |
|
KV | - | 75 | 35 | - | |
| Dissipation factor tg | ||||||
| - at 50 Hz | - | - | - | 0,05 | ||
| - at 1 MHz | - | 0,05 | 0,035 | 0,05 | ||
| Permittivity at 1 MHz | - | 4,8 | 4,4 | 5 | ||
| Comparative tracking index (CTI) | 180 | 150 | 200 | 100 | ||
| Insulation resistance after immersion in water | MΩ | - | - | 2,5x102 | 1x104 | |
| Physical properties | ||||||
| Density | g/cm3 | 1,3 - 1,4 | 1,3 - 1,4 | 1,3 - 1,4 | 1,3 - 1,4 | |
| Temperature index (TI) | 120 | 120 | 120 | 120 | ||
| Water absorption (for thickness 3mm) | mg | 248 | 260 | 58 | 51 | |
| Flammability (category) | - | - | - | V0 | ||