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
＞1.73MPa
ASTM D4325
4
Elongation at Break
＞935%
ASTM D4325
5
Water absorption
0.19%
ASTM D570-98
6
Volume resistivity
＜7x106 Ώ.cm
ASTM-D4325
7
Heat ageing(130℃ 168H)
Pass
ASTM D4325
8
UV ageing
Pass
ASTM D4325
9
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.
