GPO3(UPGM203) with properties of CTI600&Arc 180 seconds ,
thickness from 0.5mm to 60mm
GPO-3 material was made of polyester resin , glass fiber mat and
aluminium hydroxide , the material inclusive laminated sheet ,
pultrusion profiles and molded parts .
HC is one of the biggest GPO3 manufacturer in China and the drafter
of standard for this material in China , the material has been
certified by UL/ROHS/REACH/EN45545/glowing filament and other
certification from the third party .
GPO-3 laminated sheet , pultrusion profiles and molded parts can be
machined by CNC/milling machines/punching machines and etc., it
means that the materials with very excellent machining properties .
For the temperature index , It is the F class material which
required continuous operating time meet to 20K hours .
This material machined parts with very nice arc property , it was
application to every kinds of electrical equipment which has arc
when running , it will remove the arc . In other way the machining
precision can meet ISO2768-F according to the customer demand .It
is so high precision in insulation industry . As soon as we know ,
higher precision which we can meet , better for the electrical
Feature of GPO-3
It can be machined into precision tolerance part by CNC, it can
meet tolerance ISO2768-F class
It has very good arc property when running in every electrical
If the thickness of parts less than 2mm , it can be punched by
punching machine and will save machining cost .
It is green product , halogen free of the material , meet
requirements of RoHs and Reach .
This material is widely used in every low and medium voltage
It has nice properties of Arc resistance , it meets more than 180s
when operation .
|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||----|
|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||---||Low|
|Other properties||The anti microbial properties of bacteria||G21-G22||---||good|
Application of GPO-3 material
GPO-3 laminated sheet with the performance on electrical properties
such as arc resistance when it is operating in electrical
equipments . It has advantage of low smoke , it means the material
can be used in railway traffic equipments . As far as I know , the
materials have been using in metro located in Xiamen city/Xi’an
city of China . As we known , Our GPO-3 materials have been used in
high speech train due to low smoke and nice properties of
electrical . So many electrical products have the arc while it is
running . Arc will callused the insulation materials carbonized .
If the material carbonized, it will be become semiconductor , so
the properties will be effected .