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.


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.





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