EPR High Voltage Insulation Tape KC71

◆ Can be used to splice and terminate cable, the emergency overload temperatures can reach 130℃.

◆ Based on Ethylene Propylene Rubber(EPR).

◆ Physical and electrical properties are unaffected by the degree of stretch.

◆ Self-fusing tape.

◆ Excellent electrical properties.

◆ A special polyester liner which will not stick to the tape upon unwind.

◆ Operation and installation easily.

◆ Compatible with all solid dielectric cable insulation:

Polyethylene (high and low density).

Cross-linked polyethylene (XLPE).

Polyvinyl chloride (PVC).

Butyl rubber.




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.



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