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Arc Resistant GPO 3 Sheet Machined Parts
,PTD Industry GPO 3 Sheet Machined Parts
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ColorRed And White
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Thickness0.5-70mm
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Size1000x1200mm/1230x2100mm
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Arc Resistance184 Seconds
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CTI600
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Fire ResistanceUL 94-V0
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Temperature Index155℃
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Breakdown VoltageMore Than 14KV/mm
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Place of OriginChina
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CertificationUL/EN45545/ROHS/REACH
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Minimum Order Quantity100KG
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Price3-4 USD
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Packaging Detailscarton and pallet
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Delivery Time3-5 DAYS
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Payment TermsT/T, Western Union
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Supply Ability3600 TONS PER YEAR
Arc Resistant GPO 3 Sheet Machined Parts For PTD Industry
GPO-3 sheet machined part with properties of meet CTI 600& Arc resistance 180 seconds
GPO-3 Product Introduction
GPO-3 with properties of meet CTI 600& Arc resistance 180 seconds and UL certificate
The main ingredient of GPO-3 material is unsaturated polyester resin , glass fiber and aluminium hydroxide . Electrical performance mainly depend on the unsaturated polyester resin , that is means CTI 600& Arc resistance 180 seconds properties were depend on the unsaturated polyester resin . Rate of polyester resin , glass fiber and aluminium hydroxide with very exacting requirements . If the polyester resin much than standard , it will caused mechanical strength is not strength enough ; if the polyester resin is less than standard , the CTI and Arc resistance can not meet CTI600 &180seconds .
In other way , it also has requirement of pressure temperature and time , it is not allow to lower or higher temperature , rate of temperature increase faster or lower and etc., it will cause color different and effect to the insulation performance .
Features of GPO-3 material
It meets requirement of CTI600
It has performance of Arc 180seconds
It has very low water absorption rate and application to humid environment .
It meets fire resistance of UL94-V0
It has very strong break down resistance and voltage meet 14.3KV/mm
It can be punched to save machining cost if the thickness less than 3mm
| 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 |
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| Other properties | The anti microbial properties of bacteria | G21-G22 | ||
Application of GPO-3 material
As soon as we known , GPO-3 materials ( including laminated sheets , pultrusion process shapes ) have been widely used in many electrical equipment as the struck and insulation plate .
So far , the end users of this material as following :
Transformer ( such as air gap , top cover and bottom cover ) manufacturer , Switch cabinet (such as Cable clamp , bus-bar clamp) , DC motor (as insulating structures) , circuit breaker ( insulating plate , arc extinguishing cover ) , wind power generation such as slot wedge . Making of phase & end barriers, contact terminal supports, terminal plate, insulating supports in uninterruptible power supply .
GPO-3 material will be more and more used in every kinds of electrical products due to its’ nice electrical properties , easy machining and green material .
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