Semi-Conducting Two Layers Heat Shrink Tube (TLHST) provide high insulation and external layer is made from semi-conductive materials to provide electric shielding.
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Semi-Conducting Two Layers Heat Shrink Tube (TLHST) is dual wall heat shrinkable tubing which inner layer is made from
insulation material to provide high insulation and external layer is made from semi-conductive materials to provide electric
shielding. The tubing manufactured with special technology, is very suitable for applications in power cable joints up to 36kV.
>Material: cross-linked polymer, Two Layer.
>Operating temperature: -40℃～100℃.
>Shrink temperature: start at 100℃ and full recovery at 130℃.
>Color: Black.
| Inner Insulation Layer | ||
Property | Test Method | Standard Value |
Hardness(Shore A) | ASTM-D-2671 | ≤90 |
Tensile strength,Mpa | ASTM -D- 2671 | ≥12 |
Elongation,% | ≥300 | |
Volume resistance, Ω·cm | IEC 93 | ≥1×1014 |
Water Absorption(%) | ASTM-D-570 | ≥0.5 |
| Outer Semi-Conductive Layer | ||
Property | Test Method | Standard Value |
Hardness(Shore A) | ≤90 | |
Tensile strength,Mpa | ASTM -D- 2671 | ≥12 |
Elongation,% | ASTM -D- 2671 | ≥300 |
Volume resistance, Ω·cm | IEC 93 | 1×102～1×103Ω·cm |
Size(mm) | Inner Diameter as Supplied(mm) | After Recovery(mm) | Length(m) | |
Inner Diameter | Total thickness | |||
30/11 | ≥30 | ≤11 | 5.0±0.3 | 300-1200mm as required |
35/13 | ≥35 | ≤13 | 5.0±0.3 | |
45/16 | ≥45 | ≤16 | 5.0±0.3 | |
55/20 | ≥55 | ≤20 | 5.0±0.3 | |
65/27 | ≥65 | ≤27 | 5.0±0.3 | |
88/32 | ≥88 | ≤32 | 7.0±0.3 | |
100/40 | ≥100 | ≤40 | 7.0±0.3 | |
120/47 | ≥120 | ≤47 | 7.0±0.3 | |