| |
70°C high voltage PVC Insulation material
70°C high voltage PVC Insulation material is made of PVC resin, with plasticizers, stabilizers, colorants and special additives. It is a granular material.
Standard:
JGD-70 of GB/T8815-2002
Features and uses:
Good mechanical and physical Performance,and electrical Performance; suitable for 6KV cable.
Performance:
Please see Form one.
Extrusion process:1, suitable for common PVC extruder, length-to-diameter factor of screw L / D ≥ 20; taking φ60 machine as example: 3 layers of filter net, 80 mesh/120 mesh/ 80 mesh, melt temperature < 180 ° C.
Processing temperature:
| Zone one |
Zone two |
Zone three |
Zone four |
Bolt head and mould |
140±10 |
160±10 |
170±5 |
175±5 |
175±10 |
Packaging, transportation and storage:
Packing: 25 kg per bag, polyethylene film bag lined kraft composite bag .
Transportation and storage: Kept in clean, cool, dry and ventilating place, avoid insolation and rain.
Form one
| Item |
Unit |
Index name |
Typical value |
| Density (upon your demands) |
g/cm3 |
- |
1.38-1.42 |
| Tensile strength |
Mpa |
≥16.0 |
26.6 |
| Elongation at break |
% |
≥150 |
270 |
| Thermal aging in air box (100°C×168 h) |
| Tensile strength after ageing |
Mpa |
≥16.0 |
28.0 |
| Rate of change of Tensile strength |
% |
MAX ±20 |
+5 |
| Elongation at break after ageing |
% |
≥150 |
250 |
| Rate of change of Elongation at break |
% |
MAX ±20 |
-7 |
| Mass loss |
g/m2 |
≤20 |
16 |
| Hot deformation |
% |
≤30 |
21 |
| Thermal stability time under 200 ° C |
min |
≥100 |
120 |
| Brittleness temperature on Low-temperature impact |
°C |
-25 Passed |
-25 |
| Volume resistivity of 20 ° C |
W·m |
≥3.0×1012 |
2.4×1013 |
| Volume resistivity of 70 ° C |
W·m |
≥5.0×109 |
1.0×1010 |
| Dielectric strength |
MV/m |
≥20 |
27 |
| Dielectric loss factor(50HZ) |
MV/m |
≤0.1 |
0.06 |
|
Your position: Home > Products
