| Properties | Grade | |||||
| Phenolic Cotton Cloth laminated Rod | ||||||
| Properties | Units | 3723 | 3725 | 3726 | ||
| Density | Dia(mm) | g/cm3 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | |
| Water absorption rate (D-24/23) | ≤ | 6 | % | 1.7 | 1.2 | 1 |
| 13 | 1.3 | (Φ13mm) | (Φ13mm) | |||
| 25 | 1 | |||||
| > | 25~51 | 1.2 | ||||
| Flexural strength | ≥ | MPa | 90 | 110 | 95 | |
| Tensile strengh | ≥ | MPa | 78 | |||
| Compression strength (Axial) | ≥ | MPa | 138 | 138 | 138 | |
| Insulation resistance parallel to laminations | ||||||
| A: Under normal condition | ≥ | W | 1.0×108 | |||
| D-24/23: Immersion in water | ≥ | W | ||||
| Breakdown voltage parallel to laminations (in transformer oil) | ≥ | KV | 10 | 10 | 10 | |
| (20±5°C) | (20±5°C) | (20±5°C) | ||||
| Flammability | - | - | - | - | ||
| Color | - | Natural | Natural | Natural | ||
| Reference standard | - | Enterprise Standard |
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