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GPO-3 is rigid laminated sheet consisting of polyester resin reinforced with fiberglass mat.
The features of GPO-3:
-Excellent track,arc,and flame resistanceGlass fiber Polyester GPO-3 complies with standards: NEMA-GPO-3, DIN 7735-HM 2471, EN60893/IEC893-UPGM 203
Properties:
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Grade |
JY-GPO3 |
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IEC 893 / EN 60893 Grade |
UP GM 203 |
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DIN 7735 Grade |
HM 2471 |
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ANSI (NEMA) Grade NEMA LI-1 |
GPO-3 |
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Test Items |
Test Method |
Unit |
Typical Values |
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Physical Properties |
Color |
Visual inspection |
--- |
Red/White/Brown/Grey |
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Specific Gravity |
IEC 60893-2:2003 |
g/cm3 |
1.95-2.05 |
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Water absorption |
ISO62:2008 |
% |
≤0.5 |
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Mechanical properties |
Tensile Strength |
IEC 60893-2:2003 |
Mpa |
≥130 |
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Compressive strength |
IEC 60893-2:2003 |
≥300 |
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Flexural Strength |
IEC 60893-2:2003 |
≥180 |
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Impact strength |
IEC 60893-2:2003 |
KJ/m2 |
≥60 |
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Electrical properties
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Volume Resistivity |
IEC 60093：1980 |
Ω·m |
≥ 1.0 x 1010 |
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Surface Resistivity |
IEC 60093：1980 |
Ω |
≥ 1.0 x 1012 |
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Electric Strength ┴ |
IEC 60893-2:2003 |
kV/mm |
≥ 12 |
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Breakdown Voltage |
IEC 60893-2:2003 |
kV/25mm |
≥ 80 |
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Arc Resistance |
IEC 61621：1997 |
sec |
≥180 |
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PTI Proof Tracking Index PTI |
IEC 60893-2:2003 |
--- |
≥600 |
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Dielectric Constant |
IEC 60893-2:2003 |
--- |
4.0-5.0 |
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Dissipation Factor |
IEC 60893-2:2003 |
--- |
≤0.03 |
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Thermal properties |
Coefficient of Thermal Expansion |
ASTME 228-11 |
1/K |
≤2x10-5 |
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Temperature Index |
IEC 60085:2004 |
℃ |
155 |
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Flame Resistance performance |
Oxygen Index |
ISO 4589-2:1996 |
%O2 |
≥ 30 |
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Flame Resistance |
IEC 60893-2:2003 |
--- |
V-0 |
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Toxicant(Emission halogen etc.) |
E662 |
--- |
Low |
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Other properties |
The anti microbial properties of bacteria |
G21-G22 |
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good |
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