WMPG
WMPG
Heat Shrink Busbar Insulation Tube
Technical Data
Features:
- Manufactured from cross-linked polyolefin
- Used to offer insulation protection for busbars in switchgear and substations
- Protects against short circuits and electrical leakage caused by small animals
- Reduces busbar clearance requirements
- RoHS compliant
- Shrink temperature: starts at 70°C, fully recovered at 125°C
- Color: yellow, red, green, blue, black
Technical Data:
| Property | Test Method | Standard Value |
| Tensile Strength | GB/T 1040 | ≥8MPa |
| Elongation at Break | GB/T 1040 | ≥300% |
| Tensile Strength after Aging | GB/T 1040, GB/T 7141 | ≥6.4MPa (130℃,168 hrs) |
| Elongation at Break after Aging | GB/T 1040, GB/T 7141 | ≥100% (130℃,168 hrs) |
| Hardness (Shore A) | ISO 868 | ≤90 |
| Dielectric Strength | IEC 60243 | ≥25kV/mm |
| Volume Resistivity | IEC 60093 | ≥1×1014Ω·cm |
| Longitudinal Shrinkage | ASTM-D-2671 | ≤10% |
| Eccentricity | ASTM-D-2671 | ≤30%(10kV); ≤50%(35kV) |
| Water Absorption | ISO 62 | ≤0.5% |
| Flammability (Oxygen Index) | ISO 4589 | ≥28 |
Specification Table
Dimensions
1kV WMPG Series
| Product No. |
Busbar Width (square)/m |
As Supplied/mm | After Recovered/mm |
Standard Package (m/roll) |
|
| ID (Min) | ID (Max) | Wall Thickness | |||
| 1kV WMPG 30 | 30 | 31.5±1.0 | ≤15 | 0.95±0.15 | 50 |
| 1kV WMPG 35 | 35 | 36.5±1.5 | ≤18 | 0.95±0.15 | 50 |
| 1kV WMPG 40 | 40 | 41.5±1.5 | ≤20 | 0.95±0.15 | 50 |
| 1kV WMPG 45 | 45 | 41.5±1.5 | ≤23 | 1.00±0.15 | 25 |
| 1kV WMPG 50 | 50 | 51.0±2.0 | ≤25 | 1.00±0.15 | 25 |
| 1kV WMPG 60 | 60 | 60.0±3.0 | ≤30 | 1.00±0.20 | 25 |
| 1kV WMPG 65* | 65 | 65.0±3.0 | ≤33 | 1.10±0.20 | 25 |
| 1kV WMPG 70 | 70 | 70.0±3.0 | ≤35 | 1.10±0.20 | 25 |
| 1kV WMPG 75* | 75 | 75.0±3.0 | ≤38 | 1.15±0.20 | 25 |
| 1kV WMPG 80 | 80/100 | 80.0±3.0 | ≤40 | 1.20±0.20 | 25 |
| 1kV WMPG 85* | 80/100 | 85.0±3.0 | ≤43 | 1.20±0.20 | 25 |
| 1kV WMPG 90 | 100 | 90.0±4.0 | ≤45 | 1.20±0.20 | 25 |
| 1kV WMPG 100 | 100/120 | 100.0±4.0 | ≤50 | 1.30±0.20 | 25 |
| 1kV WMPG 120 | 150 | 120.0±4.0 | ≤60 | 1.30±0.20 | 25 |
| 1kV WMPG 150 | 180 | 150.0±4.0 | ≤75 | 1.30±0.20 | 25 |
| 1kV WMPG 180 | MAX | 180.0±4.0 | ≤90 | 1.46±0.20 | 25 |
| 1kV WMPG 210* | MAX | 210.0±4.0 | ≤105 | 1.46±0.20 | 25 |
| 1kV WMPG 230* | MAX | 230.0±4.0 | ≤115 | 1.46±0.20 | 25 |
| 1kV WMPG 250* | MAX | 250.0±5.0 | ≤125 | 1.46±0.20 | 25 |
