EPR Electrical Semi-conducting Tape KC72

◆ Can be used to repair XLPE cable terminations and joints or shielding for other devices up to 110kV.

◆ Retains its conductivity when stretched.

◆ Semi-conducting (low resistivity).

◆ Suitable for irregular shapes cable with good elongation.

◆ Withstand high temperatures (130°C/266°F) short-term overload.

◆ Compatible with all solid dielectric cable insulations and conductors.

◆ Resistance to ozone, solvents, UV, xenon exposure and moisture.

◆ Suitable for indoor or outdoor applications.

◆ Operation and installation easily.

◆ Increases its conductance and will not harm it in any way.

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.


◆ 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


Test Item


Test Method







ASTM D4325


Tensile Strength


ASTM D4325


Elongation at Break


ASTM D4325


Dielectric Strength


ASTM D1000


Volume resistivity






ASTM D4388


Heat ageing(130℃ 168H)


ASTM D4325




ASTM D4325


Xenon ageing


ISO 4892-2


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.

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