Heat shrinkable insulating medium wall tubing,
for medium voltage up to 36 kV, anti tracking
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Heat shrinkable insulating medium wall tubing, for medium voltage up to 36 kV,
anti tracking
| Properties |
Test Method |
Typical Data |
| Tensile strengthour |
ASTM D 2671 |
Minimum 11 MPa |
| Ultimate elongation |
ASTM D 2671 |
Minimum 400% |
| Longitudinal shrinkage |
ASTM D 2671 |
0 -10% |
Tensile strength after aging
(+120 °C,168 h) |
ASTM D 2671 |
Minimum 13 MPa |
Elongation after aging
(+120 °C,168 h) |
ASTM D 2671 |
Minimum 350% |
| Dielectric strengthour |
IEC 243 |
Minimum 15 kV/mm |
| Tracking resistance |
ASTM D 2303 |
3,75 KV, 1 h, brak |
| Dielectric constant |
IEC 250 |
Maksimum 3,0 |
| Volume resistivity |
ASTM D 2303 |
Minimum 1013 Ωcm |
Combustibility test
(Oxygen index) |
IEC 93 |
Minimum 25 |
Copper corrosion
(+120 °C, 168 h) |
ASTM D 2671 |
No corrosion |
Cold bend test
(-40 °C, 4 h) |
ASTM D 2671 |
No cracking |
Heat shrinkable medium wall and thick wall tubing, for busbar insulation of medium voltage
| Properties |
Test Method |
Typical Data |
| Tensile strengthour |
ASTM D 2671 |
Minimum 11,8 MPa |
Elongation after aging
(+120 °C,168 h) |
ASTM D 2671 |
Minimum 10 MPa |
| Longitudinal shrinkage |
ASTM D 2671 |
0 -10% |
| Ultimate elongation |
ASTM D 2671 |
700,00% |
| Ultimate elongation after aging
(+120 °C,168 h) |
ASTM D 267 1 |
Minimum 500% |
| Dielectric strengthour |
IEC 243 |
Minimum 20 kV/mm |
| Dielectric constant |
IEC 250 |
Maksimum 3,0 |
| Volume resistivity |
IEC 93 |
Minimum 1013 Ωcm |
| Combustibility test (Oxygen index) |
ASTM 4589 |
Minimum 25 |
Copper corrosion
(+120 °C, 168 h) |
ASTM D 2671 |
No corrosion |
Cold bend test
(-40 °C, 4 h) |
ASTM D 2671 |
No cracking |
Water absorption
(+23 °C, 14 dni) |
ISO 62 |
Minimum 0,5% |
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Heat shrinkable insulating medium wall
tubing, for medium voltage up to 36 kV,
anti tracking:
Used to provide insulation protection in cable terminations and joints for medium voltage
up to 36 kV. The high tracking resistance provide maximum operational reliability.
Made of specially formulated radiation cross-linked polyolefin compounds. Halogen free.
Operating temperature: from -55°C up to +125°C.
Minimum shrink temperature: +110°C.
Heat shrinkable medium wall
and thick wall tubing, for busbar
insulation of medium voltage:
Used to enhance the insulation properties of bus-bar in switchgear and substation. They provide
high resistance to tracking and arcing. The continuous length of supplied products makes
the application more comfortable and economically.
The tubing is made of specially formulated radiation cross-linked halogen free polyolefin.
Operating temperature: from -40°C up to +125°C.
Minimum shrink temperature: +110°C.
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