Features
- Inner layer is made from Hi K material to stress control
- The medium layer is made from insulation material to provide higher insulation.
- External layer is made from semi-conductive materials to provide electric shielding
- Suitable for applications in power cable joints up to 12 kV
- Minimum fully recovered temperature :1300 C
Dimension Chart for Medium Voltage Conductor Cover
| Code |
As Supplied |
After Recovered |
|
| ø D1 (max.) |
ø D2 (max.) |
T(min.) |
|
| DTWT - 42/19 |
42 |
19 |
8.0 |
Enquiry |
| DTWT - 60/29 |
60 |
29 |
8.0 |
Enquiry |
| DTWT - 76/38 |
76 |
38 |
8.0 |
Enquiry |
| Note: All Dimensions are in mm |
Technical Data (Inner stress control layer):
| Property |
Test Method |
Requirements |
| Tensile strength |
ASTM D 2671 |
10 N/mm2 (min.) |
| Elongation at break |
ASTM D 2671 |
200% (min.) |
Water absorption
|
ISO 62 |
0.5% (max.) |
| Volume resistance |
IEC 93 |
109 Ω cm (min.) |
Technical Data (Medium insulation layer):
| Property |
Test Method |
Requirements |
| Tensile strength |
ASTM D 2671 |
8 N/mm2 (min.) |
| Elongation at break |
ASTM D 2671 |
200% (min.) |
Water absorption
|
ISO 62 |
0.5% (max.) |
| Volume resistance |
IEC 93 |
1012 Ω cm (min.) |
| Dielectric Strength |
IEC 243 |
10 kV/mm (min.) |
Technical Data (External semi-conducting layer):
| Property |
Test Method |
Requirements |
| Tensile strength |
ASTM D 638 |
8 N/mm2 (min.) |
| Elongation at break |
ASTM D 638 |
200% (min.) |
Water absorption
|
ISO 62 |
0.5% (max.) |
| Volume resistance |
IEC 93 |
104Ω cm (min.) |
|
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