Special Functional Type Backsheet—Transparent/1500V High Voltage
Product Series
|
Models |
Structure |
Thickness |
Color |
|
BEC-301T |
F-coating/PET/F-coating |
305μm |
Transparent |
|
BEC-301TM |
F-coating/PET/F-coating/Mesh |
325μm |
Transparent+mesh |
|
BEC-303T |
PVDF/Adhesive/PET/F-coating |
325μm |
Transparent |
|
BEC-303TM |
PVDF/Adhesive/PET/F-coating/Mesh |
345μm |
Transparent+mesh |
|
BEC-306T |
PVF/Adhesive/PET/F-coating |
325μm |
Transparent |
|
BEC-306TM |
PVF/Adhesive/PET/F-coating/Mesh |
345μm |
Transparent+mesh |
Introduction
Firstbacksheet? BEF-402 is a backsheet with more than 1500VDC partial discharge, which consist of PO layer, hydrolysis resistant PET layer and two fluorine coating layers. BEF-402 has excellent insulation and moisture barrier property, which can meet the application requirement of high voltage PV modules.
Firstbacksheet? BEC-301T is transparent designed as tri-layer structure, which not only has high light transmittance and low haze, but also has excellent insulation performance and long term weather durability property. BEC-301T can be used in building and double power modules with the advantage in lightweight and lamination condition.
Basic Property
|
Properties |
Method |
Units |
BEC-301T |
BEC-303T |
BEC-306T |
|
Peel strength to EVA |
GB/T 2790 |
N/10mm |
>60 |
>60 |
>60 |
|
Transmittance 400-1100nm |
GB/T 29848 |
% |
90% |
90% |
90% |
|
Mesh Reflectivity white 400-1100nm |
ASTM E1164 |
% |
75% |
75% |
75% |
|
Thermal shrinkage |
ASTMD2305 |
% |
<0.5%/0.25% |
<0.5%/0.25% |
<0.5%/0.25% |
|
Tensile strength at break |
GB.T 13542.2 |
MPa |
>100 |
>100 |
>100 |
|
Elongation at break |
GB.T 13542.2 |
% |
>100% |
>100% |
>100% |
|
WVTR |
ASTM F1249 |
g/m2.24h |
<2.0 |
<2.0 |
<2.0 |
|
CTI |
IEC 60112 |
V |
>600 |
>600 |
>600 |
|
Partial discharge |
IEC 60664-1 |
VDC |
>1500 |
>1500 |
>1500 |
|
Breakdown voltage |
GB.T 1408 |
kV |
>20 |
>20 |
>20 |
|
Application scenarios |
. |
. |
Double PV Modules |
Double PV Modules |
Double PV Modules |
浙公網安備 33018502001078號