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semi-conducting heat shrink tube
Semi-conducting heat shrinkable tube
Description
Property | Test Method | Typical Data |
Inner layer | ||
Tensile strength | ASTM D 2671 | ≥5MPa |
Elongation at break | ASTM D 2671 | ≥800% |
Water absorption | ISO 62 | <0.5% |
Volume resistance | IEC 93 | ≥1015Ω.cm |
Dielectric strength | IEC 243 | ≥28kV/mm |
Density | ASTM D 257-98 | 1.0g/cm3 |
External layer | ||
Tensile strength | ASTM D 638 | ≥14MPa |
Elongation at break | ASTM D 638 | ≥300% |
Water absorption | ISO 62 | <0.5% |
Volume resistance | IEC 93 | <104Ω.cm |
Density | ASTM D 257-98 | 1.2g/cm3 |
HEDT is dual wall heat shrinkable tubing. Its inner layer is made from elastomeric insulation material to provide high insulation and the external layer is made from semi- conductive materials to provide electric shielding. The tubing manufactured with special technology, is suitable for applications in power cable joints from 11kV to 36kV.
Features
>Two layer
>Inner layer made from elastomer
>Minimum shrink temperature: 110°C
>Minimum fully recovery temperature: 130°C
Specification:
Normal size (mm) | As supplied(mm) | After recovered (mm) | Standard length | ||
Inside diameter (Min.) | Inside diameter (Max.) | Total wall thickness (Nom.) | Inner insulation layer wall thickness (mm) | ||
HEDT 37/13 | 37 | 13 | 11.0 | 8 | 1000-1220mm |
HEDT 46/17 | 46 | 17 | 12.0 | 9 | 1000-1220mm |
HEDT 56/ 21 | 54 | 21 | 13.5 | 10 | 1000-1220mm |
HEDT 66/ 26 | 66 | 26 | 13.5 | 10 | 1000-1220mm |
HEDT 82/ 26 | 82 | 26 | 13.5 | 10 | 1000-1220mm |
HEDT 78/ 34 | 78 | 34 | 13.5 | 10 | 1000-1220mm |
HEDT 88/ 34 | 88 | 34 | 13.5 | 10 | 1000-1220mm |
HEDT 95/ 42 | 95 | 42 | 13.5 | 10 | 1000-1220mm |
HEDT 115/ 53 | 115 | 53 | 13.5 | 10 | 1000-1220mm |
HEDT 125/ 62 | 125 | 62 | 14.0 | 10 | 1000-1220mm |
semi-conducting heat shrink tube
