Changzhou Longchuang Insulating Material Co., Ltd.
Manufacturer of good insulation materials； Your long-term partner !
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Heat Shrink Semi-conductive/lnsulation Dual Layer Tube
・ The red inner layer is made of insulation material to provide good insulation
・ The black outer layer is made of semi-conductive material to provide electrical shielding
・ Suitable for applications in medium voltage cable joints up to 42 kV
・ Shrinktemperature: start at 90°C, and fully recovered at 130°C
Selection Table
| Product No. | Inner Diameter/mm | After Recovered Wall Thickness /mm | Standard Length /mm | |||
| As Supplied (Min) | After Recovered (Max) | Total(±0. 3) | Red layer (±0- 2) | Black layer (±0-1) | ||
| WDWT-30/12 | 30 | 12 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-35/13 | 35 | 13 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-45/16 | 45 | 16 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-50/16 | 50 | 16 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-55/20 | 55 | 20 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-60/20 | 60 | 20 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-65/26 | 65 | 26 | 5.8 | 5.0 | 0.8 | 300-1000 |
| WDWT-85/29 | 85 | 29 | 7.3 | 6.5 | 0.8 | 300-1000 |
| WDWT-90/29 | 90 | 29 | 7.3 | 6巧 | 0.8 | 300-1000 |
| WDWT-100/37 | 100 | 37 | 7.3 | 6.5 | 0.8 | 300-1000 |
| WDWT-120/45 | 120 | 45 | 7.3 | 6.5 | 0.8 | 300-1000 |
Technical Data
| Property | Test Method | Standard Value |
| Inner Insulation Layer(Red) | ||
| Tensile Strength | ASTM-D-638 | R2MPa |
| Elongation at Break | ASTM-D-638 | 3400% |
| Tensile Strength after Aging | ASTM-D-638 | NlOMPa (130r,168hrs) |
| Elongation at Break after Aging | ASTM-D-638 | 3320% (130r,168hrs) |
| Volume Resistivity | IEC 60093 | Ss 1 x 1014Q • cm |
| Dielectric Strength | IEC 60243 | m25kV/mm |
| Longitudinal Shrinkage | ASTM-D-2671 | W10% |
| Eccentricity | ASTM-D-2671 | W30% |
| WaterAbsorption | ISO 62 | <0.5% |
| Outer Semi-conductive Layer(Black) | ||
| Tensile Strength | ASTM-D-638 | miOMPa |
| Elongation at Break | ASTM-D-638 | M300% |
| Tensile Strength after Aging | ASTM-D-638 | ^8MPa(130°C,168hrs) |
| Elongation at Break after Aging | ASTM-D-638 | >240% (130C〔68hrs) |
| Volume Resistivity | I EC 60093 | 102~104 Q ・ cm |
| Longitudinal Shrinkage | ASTM-D-2671 | W10% |
| Eccentricity | ASTM-D-2671 | W30% |
| WaterAbsorption | ISO 62 | W0.5% |
FAQ
Professional Production Quality is Reliable
Q1 . Which certifications or test reports do you have?
A : We have UL,ROHS and REACH.
Q2 . How to ship my order? Is it safe?
A : For small package, we will send it by Express,such as Fedex, UPS,TNT, DHL and so on.
For big packages, we will send them by Air or By sea or by Train. We will use good packing and ensure the safety. We will be responsible to any product damage caused on delivery.”
Q3 . What about your delivery time?
A : We have a lot of products in stock. We can send the stock products in 3 work days.
If without stock,or stock is not enough, we will check the delivery time with you.” (Usually is 3-7days).
Q4 . Can you provide samples? Are the samples free?
A : Yes. We can provide samples.
Usually for our standard products with stock, we can supply samples free for testing.
Q5 . Could I put my own logo on it?
A : Sure, of course, we are a professional manufacture and have over 10 years OEM experience.