High voltage and low temperature insulation resistance sheet of UPGM203
UPGM203 is also called GPO-3 sheet , it was composited by unsaturated polyester , glass fiber mat and aluminium hydroxide material . It has very nice excellent insulation properties and low temperature resistance performance , more and more electrical equipment products use this material. According to test organization from the third party , the break down voltage can meet 14.3KV/MM , that is means smaller thickness sheet can bear higher voltage , it will decrease thickness , weight and volume for the whole electrical , so the production cost will be saved .
For the temperature resistance , as we know that it is very cold in area of circumpolar latitude or high altitude. The strength of material will reduce if the temperature is low , but our UPGM203 has passed the test by -270℃.
In China , the rail way of Qinghai-Tibet has already have transportation service , as we know the area of Qinghai-Tibet is circumpolar latitude and very low temperature in winter . However , our GPO-3 material has already used in this line and has already running for many years .
What is feature of this material ?
NO.1 It can be used in high altitude and low temperature area .
NO.2 It has properties on insulation strength , the break down voltage can meet 14.3KV/MM
NO.3 It has property on corrosion resistance
NO.4 High strength for bending , tensile properties while running in 155℃ .
NO.5 Very nice tensile properties , tensile strength can meet 162MPa ;
NO.6 Excellent Vertical Compression Strength , the test value is more than 490MPA
NO. 7 Very nice electrical property , the arc resistance reach 180 seconds .
NO.8 Very low water absorption , it means better insulation strength when running in humid environment.
|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|
What is application of UPGM203 ?
UPGM203 is widely used in every industry , such as environmental protection, photovoltaic power generation, wind energy, rail transportation, power transmission and distribution, motor etc.
It has been used as insulating structural parts for products of above industries .
such as :
It can be used extensively in low & middle voltage electrical equipments as insulating structures such as circuit breaker, switchgear, transformer, DC motor, AC contactor,converter,inverter & explosion proof apparatus etc. ; automotive industry field etc. In electrical Apparatus: making of phase & end barriers, contact terminal supports, terminal plate, insulating supports, bus bar supports and mounting panels in switchgear; arcchute plate, arc extinguishing cover & cylinder in circuit breaker and signal panels in other types of electrical apparatus; and electric melting furnace insulations. In electrical motor: making of armature parts, cover plate,slot wedge, stator, gasket,shims,carbon brush etc.