Product Description
Cotran Brand KC71 EPR High Voltage Insulation Tape is a highly conformable, self-fusing ethylene propylene
rubber(EPR), high insulting tape. KC71 is used for main insulation applications of cableand other electrical devices up to69KV.
Applications
◆ Electrical insulation jacketing in splices of solid dielectric cable up to 69kV.
◆ Building stress cones in terminations of solid dielectric cable up to 35kV.
◆ Jacketing of indoor terminations.
◆ Moisture sealing electrical connections.
◆ Bus bar insulations and corrosion protection.
◆ End sealing high-voltage cables.
◆ Jacket repair and restoration in all types of cable.
Test Parameters
|
No. |
Test Item |
Typical Value |
Test Method |
|
1 |
Color |
Black |
Visual |
|
2 |
Thickness |
0.76mm |
ASTM D4325 |
|
3 |
Tensile Strength |
2.3MPa |
ASTM D4325 |
|
4 |
Elongation at Break |
750% |
ASTM D4325 |
|
5 |
Dielectric Strength |
32KV/mm |
ASTM D1000 |
|
6 |
Volume resistivity |
6.2x1014Ώ.cm |
ASTM-D4325 |
|
7 |
Fusion |
Pass |
ASTM D4388 |
|
8 |
Heat ageing(130℃ 168H) |
Pass |
ASTM D4325 |
|
9 |
UVageing |
Pass |
ASTM D4325 |
|
10 |
Xenon ageing |
Pass |
ISO 4892-2 |
Installation
Cotran Brand KC71 EPR High Voltage Insulation Tape should be applied in successive half-lapped, level-wound layers until desired build-up is reached.
Step 1 Perform normal cable preparation, and remove separator from tape;
Step 2 Apply tape half-lapped, stretching the tape 100%, which is enough to reduce its width to around 2/3 of its original width;
Step 3 Finish breaking the tape by holding it with your thumb and stick the end well.
