CONVENIENT INSTALLATION
Shrink technique, no need fire or special tool, no need to joint or bind copper wire, spring earthing. It can save labourforce, time and space, every set of products are packed with installation introduction .
BROAD APPLICATION
The cold shrink termination is made by special pre-expand technology, even one kind of specification can fit for many kinds of cable wire dimension with good compatibility. For the strufture it is prefab compact designed, making a complete line of stress control tube, rain shed and insulation tube. Up to now, we have possessed complete series of 33KV(others less than 35KV)the cold shrink termination fit for different variety of insulated cables such as polythene cable and XLPE polytene cable, etc. Applicable for bridge stand, embedding and trollywire and so on. The silasticma-terials indicate large use range for the cold shrink termination.
The main of the materials property
Item | Unit | Insulating silicon rubber(LSR) | Semi-conductive silicon rubber(LSR) | ||
Standard value | Measured value | Standard value | Measured value | ||
Breakdown strength | MV/m | ≥20 | 26 | - | - |
Elongation at break | % | ≥400 | 700 | ≥400 | 600 |
Tensile strength | Mpa | ≥5.0 | 8.5 | ≥5.0 | 6.0 |
Volume resistivity | Ωm | ≥1012 | 5×1014 | ≤1.5 | 0.9 |
Tear strength | N/mm | ≥15 | 30 | ≥15 | 25 |
Dielectric constant | 2.8~3.5 50HZ | 2.8 | - | - | |
Dielectric loss tangent | ≤0.01 | 0.003 | - | - | |
Proof tracking index | 1A3.5 grade | 1A 4.5 grade | - | - | |
Hardness (Shore A) | ≤50 | 35 | ≤50 | 36 | |
The main technology data of the products
Item | 1KV Series | 11KV Series | 24KV Series | 33KV Series |
Dry type power frequency withstand voltage(indoor) | 4KV 1min | 39KV 5min | 81KV 5min | 117KV 5min |
Wet type power frequency withstand voltage(outdoor) | - | 35KV 1min | 72KV 1min | 104KV 1min |
Partial discharge | - | 15KV ≤10PC | 1.73U0 ≤10PC | 45KV ≤10PC |
Impulse withstand voltage | - | 105KV±10 | 125KV±10 | 250KV±10 |
Power frequency withstand voltage | 2.4KV(4h) | - | - | - |
Cable section | Type | |
NO. | Section (mm²) | |
1 | 25~50 | WLS-6/1.1 |
2 | 70~120 | WLS-6/1.2 |
3 | 150~240 | WLS-6/1.3 |
4 | 300~400 | WLS-6/1.4 |
5 | 500~630 | WLS-6/1.5 |