UL and Reach&RoHs certified GPO-3(UPGM203) meet arc 180second and CTI600
Full name of GPO-3(UPGM203) is unsaturated polyester composited with glass fiber mat laminated sheet , then hot pressing under the high temperature .
The thickness range which we can produce : 0.5mm-60mm
Length and width : 1200*1000mm/1230*1040mm and 2100*1230mm
It has properties for very low hygrometric susceptibility, small losses at high frequency, excellent mechanical properties, good dielectric properties, V-0 flame resistance. It is mainly used as support in transformer and electric machines, pitctures, etc.
Feature of material
(1)It is green product , halogen-free material .
(2)Good electronic performance running under high temperature ,good performance for anti leakage of electronic
(2)Arc resistence could reach more than 180S in electrical equipment.
(3)flame-retardant grade could reach UL94-V0, temperature index could reach F grade (155℃)
(4)It is low smoke material when burning .
|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 material
Polyester sheet is widely used in area of transformers /switchgears/ frequency converter/ inverter/UPS and every kind of electric equipment . By virtue of its excellent electric and mechanical capacity , it has been used more and more kinds of electric equipments .GPO3(UPGM203) Polyester sheet can grinded by milling machining , the thickness tolerance will be better than normal sheet ,it means better flatness . it can be machined into complex parts by CNC machines .It is widely used in rail traffic project such as bullet train and metro by its low smoke and halogen-free flame retardant properties .As For example , Xiamen Metro , Fuzhou metro etc., it was used in switchgears and safety gate by its very low water-absorbing quality . As we know , the metro is underground and atmosphere damp , so the low water-absorbing is top important when running equipment to avoid short circuit .Up to now , metro in Xiamen China ,metro in Xi’an China have running , the Switch cabinet with GPO-3 material which supplier by HC .