◆ 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 |
Result |
Test Method |
|
1 |
Color |
Black |
Visual |
|
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 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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