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C107 Polyolefin/rubber insulated double-layer composite heat shrinkable tube

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Introduction      
The two-layer composite heat-shrinkable tube is made by composite co-extrusion of thermoplastic insulating material and rubber elastomer insulating material. The rubber elastic body design, when heated, the shrinkage response is fast, avoiding overheating damage. It is suitable for insulation protection of the middle connection of power cables of 36kV and below.

 

Fearures      
Operating temperature-55~105      
Minimum full shrinkage temperature150       
Voltage level6~36 kV      
Both layers are red insulating layers      
Halogen-free and environmentally friendly, especially thick wall thickness      
Color: red      

 

Technical Data      
Property Test method Values  
Outer layer (insulation layer, red)      
Tensile Strength ASTM D 2671 ≥12 MPa  
Breakdown elongation ASTM D 2671 ≥350%  
Aging(136/168hrs)
Tensile Strength
Breakdown elongation
ASTM D 2671
≥ 10 MPa
≥ 270%
 
Water absorption(23/24hrs) ASTM D 570 ≤ 0.5%  
Low temperature flexibility(-40/4hrs) ASTM D 2671 No cracks  
Heat shock(200/4hrs) ASTM D 2671 No dripping no flow  
Dielectric strength ASTM D 2671 ≥ 15 kV/mm  
Volume resistivity ASTM D 2671 ≥ 1×1013 Ω.cm  
Inner layer (insulation layer, red)    
Tensile Strength ASTM D2671 ≥6 MPa  
Breakdown elongation ASTM D 2671 ≥270%  
Aging(136/168hrs)
Tensile Strength
Breakdown elongation
ASTM D 2671
≥ 4.2 MPa
≥ 200%
 
Water absorption(23/24hrs) ASTM D 570 ≤ 0.5%  
Low temperature flexibility(-40/4hrs) ASTM D 2671 No cracks  
Heat shock(200/4hrs) ASTM D 2671 No dripping no flow  
Dielectric strength ASTM D 2671 ≥ 15 kV/mm  
Volume resistivity ASTM D 2671 ≥ 1×1013 Ω.cm  
Note: Use standard sample test      

 

Dimension        
Size As supplied(mm) After shrink(mm) Standard Length
C107 Inner diameterMin. Inner diameterMax. Wall thicknesscommon m/pc
35/13 35 13 11.0  ≤ 1.22
45/17 45 17 12.0  ≤ 1.22
50/21 50 21 12.0  ≤ 1.22
63/26 63 26 12.5  ≤ 1.22
75/34 75 34 12.5  ≤ 1.22
85/34 85 34 12.5  ≤ 1.22
95/42 95 42 13.5  ≤ 1.22
110/52 110 52 14.0  ≤ 1.22
125/62 125 62 14.0  ≤ 1.22

 

 

 

 

 

 

 

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C107 Polyolefin/rubber insulated double-layer composite heat shrinkable tube
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Contact

Address: Tangjia Industrial Park, Shihe Street, Puwan New District, Dalian
Tel:
0411-87166661 87166662    0411-87166663 87166665

International line:  +86-411-87166669

E-mail: upolymer@upolymer.com 

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