Crosslinked Semiconductive Shielding Material for Extruded Insulated Cables Below 35KV
Product Name, Model Type and Usage
| Product Model |
Product Name |
Characteristics And Uses |
|
SH8505DTI-36 |
Peroxide Crosslinked Semiconductive Shielding Material for XLPE Insulated Cables |
Conductor Shielding and Insulation Shielding of 10KV-35KV Cable |
|
SH8506DTO-36-N |
Peroxide Crosslinked Peelable Semiconductive Shielding Material for XLPE Insulated Cables |
Insulation Shielding of 10KV-35KV Cable |
Product Introduction
This project is a semi-conductive shielding material based on polyolefin, adding conductive carbon black and various specific additives, through mixing, plasticizing, extrusion and granulation.
Product characteristics
Excellent conductivity Excellent aging properties
Excellent processing performance Excellent peelability
Excellent mechanical properties
Processing Guidelines
It is suitable for the processing of existing screw equipment of power cable, and can obtain good almost technological effect.
The recommended extrusion temperature is as follows:
| position | 1area | 2area | 3area | 4area | 5area | die head |
| temperature（℃） | 80 | 85 | 90 | 95 | 100 | 110 |
Storage and Packaging
Semi-conductive shielding materials should be stored in a clean, dry and ventilated warehouse. Storage temperature should not be lower than 0 C and stacking height should not exceed three boxes. The storage period shall not exceed six months from the third day of production.
Semi-conductive shielding material should be packed with moisture-proof packaging. The inner bag should be packed with PE composite film bag. After sealed packaging, it should be packed in a special hard corrugated carton which is not easy to be damaged. The outer coat should be waterproof film. The net weight of each case is 500 Kg (+1 Kg).
technical characteristics
| physical property |
Unit |
SH8505DTI-36 |
SH8506DTO-36-N |
Test Method |
|
Density at 23℃ |
g/cm3 |
1.13 |
1.14 |
ASTM D 1505 |
|
Brittleness |
℃ |
no test |
no test |
ASTM D 746 |
|
Moisture content |
ppm |
＜450 |
＜450 |
Karl Fischer |
|
Thermal extension at 200℃/0.2Mpa/15min |
|
|
|
|
|
Load elongation |
% |
-12 |
|
|
|
Permanent deformation after cooling |
% |
10 |
10 |
|
|
|
|
|
|
|
|
mechanical properties |
Unit |
SH8505DTI-36 |
SH8506DTO-36-N |
Test Method |
|
Ultimate Tensile Strength |
N/mm2 |
156 |
14.8 |
ASTM D 638 |
|
Elongation at break |
% |
220 |
260 |
ASTM D 638 |
|
|
|
|
|
|
|
aging property |
Unit |
SH8505DTI-36 |
SH8506DTO-36-N |
Test Method |
|
Air heat ageing 121℃×168hrs |
|
|
|
ASTM D 638 |
|
Retention of tensile Strength |
% |
no test |
no test |
|
|
Retention of elongation |
% |
no test |
no test |
|
|
Heat deformation，121℃×2Kg |
% |
no test |
no test |
JIS C 3005 |
|
|
|
|
|
|
|
electrical properties |
Unit |
SH8505DTI-36 |
SH8506DTO-36-N |
Test Method |
|
Stripping rate |
N/cm |
|
29 |
|
|
DC Volume Resistivity at 20℃ |
Ω·cm |
＜20 |
＜35 |
|
|
DC Volume Resistivity at 90℃ |
Ω·cm |
＜319 |
＜455 |
|
