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Made of radiation crosslinked polyolefin material, this overhead line cover features excellent electrical and tracking resistance, superior weather durability, and high mechanical properties. It is designed to perform reliably under extreme conditions ranging from -50ºC to +125ºC for continuous use. The installation process is engineered to be convenient and simple, significantly reducing labor and maintenance time.





| Item | Test Method | 10kV Performance | 35kV Performance |
|---|---|---|---|
| Tensile Strength | GB1040 | ≥12MPa | |
| Elongation at Break | GB1040 | ≥400% | |
| Breakdown Strength | GB1408 | ≥20kV/mm | ≥25kV/mm |
| Volume Resistivity | GB1410 | ≥1×1013Ω·cm | |
| Copper Corrosion | ASTMD 2671 | No Corrosion (120ºC, 168hrs) | |
| Low Temp Flexibility | ASTMD 2671 | No Cracks (-40ºC, 4hrs) | |
| Size | Voltage (KV) | Conductor Section (mm2) | Max Conductor O.D.(mm) | Groove Sealant |
|---|---|---|---|---|
| Ф14 | ≤10KV | ≤70 mm2 | 14mm | No sealant |
| Ф18 | ≤10KV | ≤150 mm2 | 18mm | No sealant |
| Ф28 | ≤10KV | 185-240 mm2 | 28mm | No sealant |
| Ф14 | ≥35KV | ≤70 mm2 | 14mm | With sealant |
| Ф18 | ≥35KV | ≤150 mm2 | 18mm | With sealant |
| Ф28 | ≥35KV | 185-240 mm2 | 28mm | With sealant |
* Special sizes are available for customization upon request.
Our facility focuses on the R&D and production of advanced insulation and sealing solutions for over 17 years. With a modern management system including IATF16949 and ISO9001 certifications, we have developed 88 patents and 97 product certifications, serving clients in over 88 countries.





| Trade Terms | FOB, EXW, CIF, DDU, DDP, CFR |
| MOQ | 1 Unit |
| Lead Time | Usually 2-3 working days |
| Shipment | Express, Air, Sea |
| Packaging | Plastic bag, Carton & Pallet (Customizable) |



Ultrivex Medical