Polyolifen Material PE Overhead Line Insulation Sleeve Cover For Bare Conductors
Description
This kind of PE overhead line insulation cover was fabricated from radiation crosslinked polyolefin material, it offers superior electrical and tracking resistance, outstanding weathering resistance, and robust mechanical properties. The material exhibits exceptional high and low temperature resistance, enabling continuous operation within a temperature range of -50°C to +125°C. Installation is straightforward, reducing labor and time requirements.
Features
- High strength and wear resistance
- Long service life, anti-aging, and corrosion resistance
- Simple installation, no fire needed, power outage construction time is short
Technical Performance
| Item | Test method | 10kV 及以下 | 35kV 及以上 |
| Tensile strength | GB1040 | ≥12MPa | |
| Elongation at break | GB1040 | ≥400% | |
| Tensile Strength Change | GB7141/120℃,168hrs | ±20% | |
| Rate of change of elongation at break | GB7141/120℃,168hrs | ±20% | |
| Breakdown strength | GB1408 | ≥20kV/mm | ≥25kV/mm |
| Volume resistivity | GB1410 | ≥1×1013Ω·cm | |
| Copper corrosion | ASTMD 2671，120℃,168hrs | No Corrosion | |
| Low temperature flexibility | ASTMD 2671，-40℃，4hrs | ||
Dimensions
| Size | Voltage (KV) | Conductor Section ( mm2) | Max Conductor O.D.(mm) | Remark |
| ≤10KV | ||||
| Ф14 | 0.38-10 | ≤70 mm2 | 14mm | No sealant in the lock groove |
| Ф18 | 0.38-10 | ≤150 mm2 | 18mm | No sealant in the lock groove |
| Ф28 | 0.38-10 | 185-240 mm2 | 28mm | No sealant in the lock groove |
| Ф38 | 0.38-10 | 300-800 mm2 | 40mm | No sealant in the lock groove |
| ≥35KV | ||||
| Ф14 | 0.38-10 | ≤70 mm2 | 14mm | With sealant in the locking groove |
| Ф18 | 0.38-10 | ≤150 mm2 | 18mm | With sealant in the locking groove |
| Ф28 | 0.38-10 | 185-240 mm2 | 28mm | With sealant in the locking groove |
| Ф38 | 0.38-10 | 300-800 mm2 | 40mm | With sealant in the locking groove |
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