Complaint
| Performance | Test method | Performance index |
| Dielectric strength (kv/mm) | GB/T 1048 | ≥18 |
| Volume resistivity (Ω/cm) | GB/T 1410 | ≥1x1014 |
| Tearing strength (MPa) | GB/T 1040 | ≥3.5 MPa |
| Elongation (%) | GB/T 1040 | ≥210 |
| Fire resistance(flame retarded products) | GB/T 2408 | FV-1 |
| Size | Tolerance(mm) | Thickness and tolerance | |||
| 2500V(mm) | 4000V(mm) | 6000V(mm) | 7000V(mm) | ||
| φ0.8 | 0.8±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ1.0 | 1.0±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ1.5 | 1.5±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ2.0 | 2.0±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ2.5 | 2.5±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ3.0 | 3.0±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ3.5 | 3.5±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ4.0 | 4.0±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ4.5 | 4.5±0.10 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ5.0 | 5.0±0.20 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ5.5 | 5.5±0.20 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ6.0 | 6.0±0.20 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ6.5 | 6.5±0.20 | 0.50±0.10 | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
| φ7.0 | 7.0±0.20 | - | 1.00±0.15 | 1.50±0.20 | 2.00±0.25 |
