Heat Shrink Protective Tube
This heat shrink protective tube is made of radiation crosslinked polyolefin, during which the heating & expansion technique has been employed. It starts shrinking when the environmental temperature reaches 90 ℃ and completes shrinking when the temperature reaches 130℃. The heat shrink tube can be used to protect low-to-medium voltage cables and cable joints from water. To deliver even better sealing performance, hot-melt adhesives are smeared inside the tube. Two smearing methods are available, one with the adhesives smeared on both ends, and the other with the adhesives smeared along the wall.
Technical Data
| Property | Test Method | Standard Value |
| Tensile Strength | ASTM-D-638 | ≥12Mpa |
| Elongation at Break | ASTM-D-638 | ≥300% |
| Volume Resistivity | IEC 60093 | ≥1x Ω.cm |
| Dielectric Strength | IEC 60243 | ≥15kV (mm) |
| Brittle Temperature | ISO 974 | -40℃ |
| Heat Shock | 160℃,4h | No Crack |
| Water Absorption(23±2) ℃ 24h | ISO 62 | ≤0.1% |
| Hardness(Shore A) | ISO 868 | ≥80 |
| Longitudinal Shrinkage | ASTM-D-2671 | ≤5% |
| Eccentricity | ASTM-D-2671 | ≤35%(Ø200 and below) ≤55%(above Ø200) |
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