Black Silane-XLPE Compound of Sioplas Method for Aerial Cables
No
|
Experiment Items
|
Unit
|
Standard
|
Typical Value
|
|
1
|
Tensile strength
|
Mpa
|
Min.14.5
|
21.5
|
|
2
|
Elongation break
|
%
|
Min.350
|
500
|
|
3
|
Aging 150℃,240h Permissible variation in mechanical properties before and after ageing
|
Change of tensile strength
|
%
|
±20
|
12
|
Change of elongation
properties |
%
|
±20
|
10
|
||
4
|
Hot set test 200℃,0. MPa, 15min
|
Elongation under
load |
%
|
Max.100
|
50
|
Permanent elongation
after cooling |
%
|
Max.5
|
-2.5
|
||
5
|
Dielectric loss factor 50Hz、20℃
|
≤1.0×10^-3
|
5.0×10^-4
|
||
6
|
DC Volume resistivity 20℃
|
Ω.m
|
≥5.0 x10^13
|
4.0×10^14
|
|
7
|
Dielectric strength
|
MV/m
|
≥22
|
39
|
|
8
|
Carbon Black Content
|
%
|
2.5
|
2.5
|