| Application: | Insulators |
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| Type: | Insulation Sleeve & Tube |
| Chemistry: | Organic Insulation |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
Shanghai Wellco International Limited presents a high-quality insulation protection solution with our Cross-linked Modified Polyolefin material. Designed for the specific needs of transformer station buses and high/low voltage switch cubicle buses, our product offers exceptional performance and reliability.
Our Cross-linked Modified Polyolefin material is engineered to withstand extreme temperatures, with an operating temperature range of -40ºC to 125ºC. It provides excellent insulation and high-voltage resistance, ensuring the safety and efficiency of your electrical systems.
With a contraction temperature above 70ºC and a contraction ratio of 2:5:1, our material is easy to install and provides a secure and compact structure for switch cubicles. By reducing the distance between components, it effectively prevents accidental short circuit incidents, enhancing the overall safety of your electrical infrastructure.
Choose Shanghai Wellco International Limited for a reliable and durable solution that meets your insulation protection needs. Trust our high-quality Cross-linked Modified Polyolefin material to provide corrosion resistance, high insulation, and exceptional performance in demanding environments.
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Item
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Test method
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Indicator
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Values
|
|
Tensile strength
|
ASTM D2671
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≥10MPa
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15.4MPa
|
|
Elongation at break
|
ASTM D2671
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≥450%
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583%
|
|
Tensile Strength After Aging
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ASTM D2671/136°C/168h
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≥10MPa
|
14.2MPa
|
|
After aging the tensile elongation at break
|
ASTM D2671/136°C/168h
|
≥400%
|
541%
|
|
Thermal Shock
|
200°C±3°C/4h
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Without dripping, flowing or crack
|
Passed
|
|
Low temperature flexibility
|
ASTM D2671/-40°C/4h
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No cracking
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No cracking
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Breakdown strength
|
ASTM D2671
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≥19kV/mm
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≥25.7kV/mm
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Volume resistivity
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ASTM D876
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≥1.0x1014Ω· cm
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≥5.3x1014Ω· cm
|
|
Water absorption
|
ASTM D570A
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≤0.5%
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0.23%
|
|
Size
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As supplied
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After recovery
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Packaged Length
|
||
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ID/mm
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Wall Thickness/mm
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ID/mm
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Wall Thickness/mm
|
M
|
|
|
35KV 30/15
35KV 35/18
35KV 40/20
35KV 50/25
35KV 60/30
35KV 65/33
35KV 70/35
35KV 75/38
35KV 80/40
35KV 100/50
35KV 120/60
35KV 150/75
35KV 180/90
35KV 210/105
35KV 230/115
|
30 ± 1.0
35 ± 1.0
40 ± 1.0
50 ± 2.0
60 ± 2.0
65 ± 2.0
70 ± 2.0
75 ± 2.0
80 ± 3.0
100 ± 4.0
120 ± 4.0
150 ± 4.0
185 ± 5.0
210 ± 5.0
230 ± 5.0
|
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
1.9 ± 0.5
|
15
18
20
25
30
33
35
38
40
50
60
75
90
105
115
|
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
4.0 ± 0.3
|
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
|
Shanghai Wellco International Limited is a professional team with 18 years of experience in R&D, production, and sales of special heat shrink tubes and other radiation crosslinking materials. We specialize in providing a wide range of products and solutions for insulation, connection, waterproofing, high temperature applications, chemical resistance, EMI protection, and mechanical protection for wires and cables.
With a strong technical force and advanced production equipment, we offer heat shrink tubes and insulation tubes made from various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. Our products find extensive use in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They provide insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Our products have passed UL certification, RoHS, and REACH.
We also specialize in producing customized products or developing products with special requirements based on customer needs. Our production adheres to ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of product quality.
Shanghai Wellco International Limited is a professional manufacturer of special heat shrink tubes and other radiation crosslinking insulation materials. With over 20 years of experience in insulation, we are dedicated to providing high-quality products to our customers.
At Shanghai Wellco International Limited, we offer a wide range of products including:
We prioritize quality in our manufacturing process. To ensure the highest standards, we always provide a pre-production sample before mass production and conduct a final inspection before shipment.
When you choose Shanghai Wellco International Limited, you benefit from:
We offer the following services:
Suppliers with verified business licenses
Audited Supplier 
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