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 | |
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 |
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.