I. Illustration
With EPR as base material, added with reinforcing agent, softening agent, filling agent, antioxidant, curing agent, totally blended by internal mixer, DCJ 30A—90℃ EPR Insulation Compound make by our company is the product used for electrical cable insulating layer. It has excellent propertities such as heat-resistance, ozone- resistance, electrical non-conductivity and it is easy to process and store.
II. Application
It is a kind of specially used insulating material for shipyard cable, motor & electrical outlet cable, heat-resistant connection cable of electric apparatus, etc. under 1 KV. It can be used for long time under the temperature at -40℃～90℃. The material is highly flexible, easily blending and moving. So the cable can be easily installed and laid. The color is white or according to customers′ requirements.
Ⅲ. Technical specification
NO. |
Test Item |
Unit |
Standard |
Typical Value |
1
1.1
1.1.1.3 |
Mechanical properties before aging
Tensile strength, min
Elongation at break, min
Snap permanent set |
Mpa
%
% |
4.2
200 |
5.8
470
45 |
2
2.1
2.2 |
135℃,168h air oven after aging
Change ratio of tensile strength, max
Change ratio of elongation at break max |
%
% |
±30
±30 |
18
-16 |
3.
3.1
3.2 |
Electricity property
Volume resistivity, at 20℃,
Breakdown intension |
Ωm
Mv/m |
|
5.9×1013
24.5 |
4.
4.1
4.2 |
250℃,0.2mpa,15min heat-extending test
Elongation in load, max
Permanent and set after cooling, max |
%
% |
175
175 |
35
8 |
5. |
0.55±0.02mpa,127℃,40h
Air bomb after aging
Change ratio of tensile strength
Change ratio of elongation at break, max |
%
% |
±30
±30 |
10
-18 |
6
6.1
6.2 |
Ozone-resistance test
Ozone concentration
Persistent test time without chap, min |
h |
30 |
30 |
7 |
Density |
|
|
1.57 |
8 |
Standard |
IEC 60092-351 |
Ⅳ. Processing condition
- Ordinary rubber extruder is available, CV production line is recommended.
- Redution ratio of extruder : 1.1:1～1.5:1
- LD ratio : 6:1～16:1
- Temperature : 60～80℃
- Recommended temperature inside curing pipe : 180～200℃
Ⅴ. Package & Storage
In 25 KG carbon box with PE inside or according to the customers′ requirements. The material should be stored at clean, dry, shade and draughty place.
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