GPO-3 sheet with UL/EN45545/ROHS/REACH and with nice property of machining
GPO-3 sheet is the insulation material which was made by unsaturated polyester resin , glass fiber and aluminium hydroxide .
Functions of unsaturated polyester resin is electrical properties such as CTI/Arc resistance /break down voltage and etc.,
functions of glass fiber is mechanical properties such as bending strength , compress strength , tensile strength and etc., function of aluminium hydroxide is filling material and fire resistance.
The glass fiber is the alkali-free glass fiber mat , it will be more save and more environmentally friendly . The GPO-3 from our factory has certificate by UL/ROHS/REACH and EN45545 , all of these certificates will be needed when materials exporting to Europe and North America . For the property of machining , the material can be cut , drill the holes and process on CNC machines .
Functions and features of GPO-3 material
a.It is environmentally friendly material as it is halogen free material .
b.It has strong strength on tensile and compression
c.It meets requirement of CTI600
d.It meets fire resistance of UL94-V0
e.It has very strong break down resistance and voltage meet 14.3KV/mm
f. It can be punched to save machining cost if the thickness less than 3mm
g.It has very low water absorption rate and application to humid environment .
h.It has performance of Arc 184 seconds
Hong Cheng Grade | HC-GPO3 | |||
IEC 893 / EN 60893 Grade | UP GM 203 | |||
DIN 7735 Grade | HM 2471 | |||
ANSI (NEMA) Grade NEMA LI-1 | GPO-3 | |||
Items | Test Method | Unit | Typical Values | |
Physical Properties | Color | Visual inspection | ---- | Red/White/Brown/Grey |
Specific Gravity | IEC 60893-2:2003 | g/cm3 | 1.95-2.05 | |
Water absorption | ISO62:2008 | % | ≤0.5 | |
Mechanical properties | Tensile Strength | IEC 60893-2:2003 | Mpa | ≥130 |
Compressive strength | IEC 60893-2:2003 | ≥300 | ||
Flexural Strength | IEC 60893-2:2003 | ≥180 | ||
Impact strength | IEC 60893-2:2003 | KJ/m2 | ≥60 | |
Electrical properties | Volume Resistivity | IEC 60093:1980 | Ω·m | ≥ 1.0 x 1010 |
Surface Resistivity | IEC 60093:1980 | Ω | ≥ 1.0 x 1012 | |
Electric Strength ┴ | IEC 60893-2:2003 | kV/mm | ≥ 12 | |
Breakdown Voltage // | IEC 60893-2:2003 | kV/25mm | ≥ 80 | |
Arc Resistance | IEC 61621:1997 | sec | ≥180 | |
PTI Proof Tracking Index PTI | IEC 60893-2:2003 | --- | ≥600 | |
Dielectric Constant | IEC 60893-2:2003 | --- | 4.0-5.0 | |
tgδ Dissipation Factor | IEC 60893-2:2003 | --- | ≤0.03 | |
Thermal properties | Coefficient of Thermal Expansion | ASTME 228-11 | 1/K | ≤2x10-5 |
Temperature Index | IEC 60085:2004 | ℃ | 155 | |
Flame Resistance performance | Oxygen Index | ISO 4589-2:1996 | %O2 | ≥ 30 |
Flame Resistance | IEC 60893-2:2003 | --- | V-0 | |
Toxicant(Emission halogen etc.) | E662 | --- |
Low |
|
Other properties | The anti microbial properties of bacteria | G21-G22 |
Application of GPO-3 material
So far , GPO-3 material has been used in every industries of electrical , but the major industries are PTD , New energy and Railway.
PTD means power transmission and distribution including transformer , Switch cabinet , breaker and etc.,GPO-3 material as the insulation sheet , supporting structure , air gap , top cover and bottom cover in switch and transformer .
New energy include new energy automobile , wind power generation and photovoltaic power generation , GPO-3 material is widely used in these products as the insulation between phases , battery cover plate and insulating sheet in inverter .
Railway requested certificate EN45545 , low smoke , UL94-V0 and non-toxic , the GPO-3 from our factory meet mentioned requirements . We are one of the biggest GPO-3 manufacturer in China , materials have been exporting to more than 30 countries all over the world , the customers including so many companies on top 500 in the world .