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70 Degree Sheathing-grade Flexible PVC Plastic
Notes:
Far East New Materials’ 70 Degree flexible PVC cable sheath compound (H-70) refers to sheathing material for wire and cable. It is produced from PVC as base material and auxiliary materials, such as plasticizer and stabilizer, after being mixed, plasticized and granulated. It is applicable for 450/750KV and below wire and cable sheath.
I. Basic Performances
Item |
Standards |
Unit |
Test Result |
Item Conclusion |
|
Tensile Strength |
≧15.0 |
MPa |
17.6 |
Qualified |
|
Elongation at Break |
≧180 |
% |
290 |
Qualified |
|
After Air-oven Heat Aging (100°C, 168h) |
Tensile Strength |
≥15.0 |
MPa |
17.1 |
Qualified |
Variable Rate of Tensile Strength |
≦+20 ≥-20 |
% |
-3 |
Qualified |
|
Elongation at Break |
≧180 |
% |
280 |
Qualified |
|
Variable Rate of Elongation at Break |
≦+20 ≥-20 |
% |
-3 |
Qualified |
|
Thermal Ageing Quality Loss |
≦23 |
g/m² |
6 |
Qualified |
|
Thermal Deformation (120°C, 1h) |
≦50 |
% |
29 |
Qualified |
|
Low-temperature Impact Embrittlement (-25°C) |
≦15/30 |
Nr. |
2/30 |
Qualified |
|
Thermal Stability Time (200°C) |
≥50 |
min |
>50 |
Qualified |
|
Volume Resistivity (20°C) |
≧1.0×108 |
Ω.m |
1.4×1012 |
Qualified |
|
Dielectric Strength |
≧18 |
MV/m |
27 |
Qualified |
|
II. Proposed Process Conditions
Temperature of machine body: 140°C-160°C
Temperature of machine head:160°C
Temperature of extrusion die: 165°C
III. Packing and Storage
The product is adopted with outer packing (composite bag) together with inner packing (plastic bag) with weight per bag of 25kg. It is moisture-proof and well packed during storage and transportation.
