WM-6125J 125 Centigrade Irradiation Cross-linking Flame Retardant Polyolefin Compound for Insulation of Photovoltaic Cable
Experiment item
|
Unit
|
Standard value
|
Typical value
|
Test method
|
1. Tensile strength
|
MPa
|
≥9.0(*9.0)
|
10.8(*10.2)
|
GB/T 1040
|
2. Elongation at break
|
%
|
≥150(*180)
|
185(*220)
|
GB/T 1040
|
3.Elongation under load
|
%
|
≤100
|
50
|
GB/T 2951
|
4.Permanent deformation after cooling
|
≤25
|
0
|
GB/T 2951
|
|
5. Elongation in low temperature (-40℃)
|
%
|
≤40
|
-40℃PASS
|
GB/T 5470
|
6. 20℃ DC volume resistivity
|
Ω•m
|
≥1×10^12
|
2.2×10^12
|
GB/T 1410
|
7. Electric strength
|
MV/m
|
≥20
|
27
|
GB/T 1408
|
8. Oxygen index
|
%
|
28
|
36
|
GB/T 2406
|
9. Electric strength
|
MV/m
|
≥20
|
25
|
GB/T 1408
|
10. Halogen acid gas content
|
mg/g
|
≤5
|
<1
|
GB/T 17650
|