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This product is an excellent insulation material, mainly used in high voltage switchgear, powerplants, substations in outdoor and indoor busbar insulation protection. Can rise to prevent foreignbody lap, short-circuit, prevent the maintenance personnel to prevent small animals into electricclearance, prevent condensation flashover, and increase the insulation effect. The single segmenttype, according to the customer request production within 1-2 meters of arbitrary length.
thermal shrinkage ratio: 2:1
initial shrinkage temperature: ≥ + 84 °C
complete shrinkage temperature: > + 120 'C
working temperature: -55 °C~+ 125 °C
environmental protection, high strength, elasticity and flame retardant
environmental protection certification: RoHS
| performance | index | Test standard | |||
| tensile strength | ≥8 Mpa | GB/T1040 | |||
| elongation at break | ≥300% | GB/T1040 | |||
| Tensile strength after thermal aging | ≥6.4 Mpa | GB/T1040，GB/T7141 | |||
| Elongation at break after thermal aging | ≥100% | GB/T1040，GB/T7141 | |||
| Radial shrinkage | ≥50% | ||||
| Axial shrinkage | Φ20~Φ30≤5%； Φ40~Φ50≤8%； Φ60以上≤15% |
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| thermal shock | No cracking and no flowing | Jb7829 Appendix D (160 ℃) × 4h) | |||
| Low temperature resistance | No cracking | (- 40 ℃) | |||
| Flame retardant test (oxygen index O.I) | ≥28 | GB/T2406 | |||
| Breakdown strength | ≥15kV/mm | GB/T1408.1 | |||
| Volume resistivity | ≥4.3×1014Ω·cm | GB/T1410 | |||
| Hardness (Shore A) | ≤90 | GB 2411 |
*This indicator is applicable to 10kV busbar when conducting this indicator test. The product must be uniformly shrunk on the busbar,and the length of parallel section shall be ≥ 1200mm.
| Electrical performance | |||||
| project | Company | index | |||
| 1kV Grade | 10kV Grade | 20kV Grade | 35kV Grade | ||
| Power frequency voltage test | kV | 2 | 42 | 50 | 95 |
| Lightning impulse voltage test | kV | 4 | 75 | 95 | 185 |
| 10kV continuous busbar protection heat shrinkable sleeve | |||||
| Specifications | Applicable busbar (square / round) | Supply inner diameter (mm) | Full reduced size (mm) | Standard packaging M / plate | |
| internal diameter | wall thickness | ||||
| 10kV MPG 15/8 | 15/12 | 15±0.8 | ≤8 | 1.80±0.30 | 25 |
| 10kV MPG 20/10 | 20/15 | 20±0.8 | ≤10 | 1.80±0.30 | 25 |
| 10kV MPG 25/12 | 25/18 | 25±0.8 | ≤12 | 1.80±0.30 | 25 |
| 10kV MPG 30/15 | 30/20 | 30±0.8 | ≤15 | 2.00±0.30 | 25 |
| 10kV MPG 40/20 | 40/30 | 40±1.0 | ≤20 | 2.10±0.30 | 25 |
| 10kV MPG 50/25 | 50/35 | 50±2.0 | ≤25 | 2.10±0.30 | 25 |
| 10kV MPG 60/30 | 60/45 | 60±3.0 | ≤30 | 2.10±0.30 | 25 |
| 10kV MPG 65/33* | 65/45 | 65±3.0 | ≤33 | 2.10±0.30 | 25 |
| 10kV MPG 70/35 | 70/50 | 70±3.0 | ≤35 | 2.30±0.30 | 25 |
| 10kV MPG 75/38* | 75/50 | 75±3.0 | ≤38 | 2.30±0.30 | 25 |
| 10kV MPG 80/40 | 80/55 | 80±3.0 | ≤40 | 2.30±0.30 | 25 |
| 10kV MPG 85/43* | 80/65 | 85±3.0 | ≤43 | 2.30±0.30 | 25 |
| 10kV MPG 100/50 | 100/75 | 100±4.0 | ≤50 | 2.40±0.30 | 25 |
| 10kV MPG 120/60 | 120/85 | 120±4.0 | ≤60 | 2.40±0.30 | 25 |
| 10kV MPG 150/75 | 150/105 | 150±4.0 | ≤75 | 2.40±0.30 | 25 |
| 20kV continuous busbar protection heat shrinkable sleeve | |||||
| Specifications | Performance applicable busbar (square / round) | Supply inner diameter (mm) | Full reduced size (mm) | Standard packaging M / plate | |
| internal diameter | wall thickness | ||||
| 20kV MPG 15/8 | 15/12 | 15±0.8 | ≤8 | 2.30±0.20 | 25 |
| 20kV MPG 20/10 | 20/15 | 20±0.8 | ≤10 | 2.30±0.20 | 25 |
| 20kV MPG 25/13 | 25/18 | 25±0.8 | ≤13 | 2.30±0.20 | 25 |
| 20kV MPG 30/15 | 30/20 | 30±0.8 | ≤15 | 2.30±0.20 | 25 |
| 20kV MPG 40/20 | 40/30 | 40±1.0 | ≤20 | 2.60±0.30 | 25 |
| 20kV MPG 50/25 | 50/35 | 50±2.0 | ≤25 | 2.60±0.30 | 25 |
| 20kV MPG 60/30 | 60/45 | 60±3.0 | ≤30 | 2.60±0.30 | 25 |
| 20kV MPG 65/33* | 65/45 | 65±3.0 | ≤33 | 2.60±0.30 | 25 |
| 20kV MPG 70/35 | 70/50 | 70±3.0 | ≤35 | 2.60±0.30 | 25 |
| 20kV MPG 75/38 | 75/50 | 75±3.0 | ≤38 | 2.60±0.30 | 25 |
| 20kV MPG 80/40 | 80/55 | 80±3.0 | ≤40 | 2.60±0.30 | 25 |
| 20kV MPG 85/43* | 80/65 | 85±3.0 | ≤43 | 2.60±0.30 | 25 |
| 20kV MPG 100/50 | 100/75 | 100±4.0 | ≤50 | 2.60±0.30 | 25 |
| 20kV MPG 120/60 | 120/85 | 120±4.0 | ≤60 | 2.60±0.30 | 25 |
| 20kV MPG 150/75 | 150/105 | 150±4.0 | ≤75 | 2.60±0.30 | 25 |
| 35kV continuous busbar protection heat shrinkable sleeve | |||||
| Specifications | Applicable busbar (square busbar) | Supply inner diameter (mm) | Full reduced size (mm) | Standard packaging M / plate | |
| internal diameter | wall thickness | ||||
| 35kV MPG 15/8 | 15/12 | 15±1.0 | ≤8.0 | 3.30±0.30 | 20 |
| 35kV MPG 20/10 | 20/15 | 20±1.0 | ≤10.0 | 3.30±0.30 | 20 |
| 35kV MPG 30/15 | 30 | 30±1.0 | ≤15.0 | 3.30±0.30 | 20 |
| 35kV MPG 35/18 | 30/40 | 35±1.0 | ≤18.0 | 3.30±0.30 | 20 |
| 35kV MPG 40/20 | 40 | 40±1.0 | ≤20.0 | 3.30±0.30 | 20 |
| 35kV MPG 50/25 | 50 | 50±2.0 | ≤25.0 | 3.30±0.30 | 20 |
| 35kV MPG 60/30 | 60 | 60±2.0 | ≤30.0 | 3.50±0.30 | 20 |
| 35kV MPG 65/33* | 60/70 | 65±2.0 | ≤33.0 | 3.50±0.30 | 20 |
| 35kV MPG 70/35 | 70 | 70±2.0 | ≤35.0 | 3.50±0.30 | 20 |
| 35kV MPG 75/38* | 70/80 | 75±2.0 | ≤38.0 | 3.70±0.30 | 20 |
| 35kV MPG 80/40 | 80/100 | 80±4.0 | ≤40.0 | 3.70±0.30 | 20 |
| 35kV MPG 100/50 | 100/120 | 100±4.0 | ≤50.0 | 3.80±0.30 | 20 |
| 35kV MPG 120/60 | 150 | 120±4.0 | ≤60.0 | 3.80±0.30 | 20 |
| 35kV MPG 150/75 | 180 | 150±4.0 | ≤75.0 | 3.80±0.30 | 20 |
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