Hight Flexural strength Thermoset Polyester UPGM 203(GPO3) for laminated busar
Product Description:
UPGM203 sheet is rigid laminated sheet made of heat pressing which composed of e-class glass-mat reinforced unsaturated polyester and inorganic filler binder.it is also known as GPO3 sheet according to Nema standard of America
Product Advantages:
Product Applications:
UPGM203 sheet is used extensively in low & middle voltage electrical epuipment as insulating structures ,such as circuit breaker ,switchear,transformer,converter,inverter & explosion-proof apparatus etc.in electrical apparatus:making of phase & end barriers,contact terminal supports,terminal plate,insulating supports,bus bar supports and mounting panels in switchgear;and signal panels in other types of electrical apparatus;and electric melting furnace insulations.
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 | |
Proof Tracking Index PTI | IEC 60893-2:2003 | --- | ≥600 | |
Dielectric Constant | IEC 60893-2:2003 | --- | 4.0-5.0 | |
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 |
UPGM 203 Thermoset polyester sheet used as laminated busar
The laminated busbar is also called the composite busbar,it provides a modern, easy design, quick assemble and clear structured distribution system.It has high power modularized connected structural parts with the characteristics of repeatable electrical performance, low impedance, anti-interference, good reliability, space saving , simple and quick assembly.Composite bus is widely used in electric and hybrid traction, electric traction equipments, cellular communication, base station, telephone switching system, large network equipment, large and medium-sized computers, power switch system, welding system, military equipments, power generation system,power conversion module for electrical equipment etc. The requirements for insulating materials are smooth and fine on surface, high planeness , arc resistance and high breakdown voltage etc.
Our Packing for Thermoset polyester machined part:
as you know ,the Thermoset polyester machined part is normally very complicated and thin ,it is very easy to crack when transpotation. so we have design below packing to protect them.