Product Description
Cotran Brand KC72 electrical semi-conducting tape is a Highly conformable, self-fusing, semi-conducting ethylene
propylene rubber(EPR) based, high voltage splicing tape. KC72 is used for repairing of XLPE cable terminations
and joints or shielding for other devices up to 110kV.
Applications
◆ Uniform electric field in high electric field, to minimize electrical stresses in
◆ Continue semi-conducting strand shielding found in solid dielectric cables above 5kV.
◆ Provide shielding layer for solid dielectric insulated cable.
◆ Repair the semi-conducting layer beneath metallic shield of similar cables in case of damage
◆ Make conductive portion of stress cone of power cable termination on solid dielectric insulated cables.
Test Parameters
|
No. |
Test Item |
Result |
Test Method |
|
1 |
Color |
Black |
|
|
2 |
Thickness |
0.76mm |
ASTM D4325 |
|
3 |
Tensile Strength |
3.83MPa |
ASTM D4325 |
|
4 |
Elongation at Break |
850% |
ASTM D4325 |
|
5 |
Dielectric Strength |
35.16Kv/mm |
ASTM D1000 |
|
6 |
Volume resistivity |
3.5x1015Ώ.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 KC72 electrical semi-conducting tape is usually wrapped in half-lapped layers. With excellent elongation, stretched overwrapping the connectors, terminals, and metallic shield of power cable.
Step 1 Wipe off the dusts on the power cable area before wrapping.
Step 2 Remove the liner and stretch the tape to 1 to 2 times of its original length, apply the tape in 50%-lapped toward area to the wrapped. Stretching the tape to 4 times of its original length is not recommended.
Step 3 Overwrapping the electrical semi-conducting tape on the power cable on the needed area.
