Accessories

DTWT Heat Shrinkable Tripple Layer Tubing

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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

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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
DTWT - 60/29 60 29 8.0
DTWT - 76/38 76 38 8.0
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.)