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|
|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||---||
|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 .