Semi-conducting tubing/insulation double layer tubing/double layer heat-shrinkable tubing/dual wall heat shrinkable tubing/double layer tubing
Material: Semi-conductive material
Property: Provide electric shielding
Inner layer
Tensile strength: More than 12Mpa
Elongation at break: More than 300%
Water absorption: Less than 0.5%
Volume resistance: More than 1014 Ω. Cm
Dielectric strength: More than 20KV/mm
Density: 1.1g/cm3
External layer
Tensile strength: More than 14Mpa
Elongation at break: More than 300%
Water absorption: Less than 0.5%
Volume resistance: Less than 103 Ω. Cm
Density: 1.2g/cm3
Specification | Before shrinkable | After shrinkable | wall thickness after shrinkable | length |
DWST-φ 30/12 | 30 | 12 | 5.0 | 500mm |
DWST-φ 35/13 | 35 | 13 | 6.0 | 500mm |
DWST-φ 45/15 | 45 | 15 | 6.0 | 500mm |
DWST-φ 55/20 | 55 | 20 | 6.0 | 500mm |
DWST-φ 65/25 | 65 | 25 | 6.0 | 500mm |
DWST-φ 85/30 | 85 | 30 | 7.0 | 500mm |
DWST-φ 100/38 | 100 | 38 | 7.0 | 500mm |
DWST-φ 120/45 | 120 | 45 | 7.0 | 500mm |
Black and red dual wall tube is co-extruded, cross-linked polyethylene. The inner layer is made from insulation material to provide high
insulation and external layer is made from semiconductive materails to provide
electrical shielding. It is used in 10KV, 11KV, 8.7/15KV, 12/20KV, and 33KV, 17.5/36KV,
35KV cable joints.
