Heat shrinkable cable accessory35KV
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Specification
Product Name | Model | Cable cross section(mm²) |
NRSY-35/3.1 | 50-120 | |
NRSY-35/3.2 | 150-240 | |
NRSY-35/3.3 | 300-400 | |
NRSY-35/3.4 | 500-630 |
It is applicable to 21/35, 26/35kv 3 cores PVC and XLPE power cable with characteristics of waterproof, stress control, shielding and insulation. With good electrical and mechanical properties, it can be used in a variety of harsh environment for long-term use. It has advantage of small size, light weight and easy installation. It is widely used in electric power, petroleum, chemical industry, metallurgy, railway, port and construction and other fields.
Technical Data
No. | Items | Requirements | |
1 | AC withstand voltage test | 156kv 15 min | |
2 | Partial discharge test | ≤10Pc （1.7U0） | |
3 | Impulse voltage test | 250kv 1.2/50 μs +10times | |
4 | Power frequency withstand voltage test | 78kv 4h | |
5 | Wet condition power frequency withstand voltage test（outdoor） | 105kv 1min | |
6 | Dry condition power frequency withstand voltage test（indoor） | 105kv 1min | |
7 | Main heat shrinkable material | Shore hardness(A) | 84 ± 3 |
8 | Tensile strength (Mpa) | ≥12 | |
9 | Shrinkage temperature（℃） | 120~140 | |
10 | Insulation tubing | Volume resistivity (Ω.cm) | ≥1×1014 |
11 | Breakdown strength(kv/mm) | ≥20 | |
12 | Heat shrinkable stress control tube |
Dielectric constant(ε) |
≈25 |
