Arc Resistance Tester ASTM D495
Get a quote：
Whats/App: +86 185 0176 3615
Web: qinsun-lab.com
GB/T1411-2002 dry solid insulating material resistance to high voltage, small current arc discharge test (equivalent to IEC and ASTM D495 and other standards; in line with UL 746A and other test methods
Functional principle
Insulating materials to resist deterioration caused by high-voltage arc action, usually with a standard arc flame on the surface of the material caused by charring to the surface conductivity and the arc disappeared the time required to express the unit of seconds in the plate specimen plus two separated by a certain distance from the tungsten electrodes, depending on the need for high-frequency high-voltage current between the two poles to produce an arc, initially intermittent time is gradually shortened, and finally for the continuous arc and gradually increase the current, the material The material is subjected to gradually harsh arc conditions and eventually cause damage. Arc resistance for high-voltage switch or low-voltage high-current switch insulating materials have important significance, because in the switch opening and closing will often be subjected to arc action, only good arc resistance materials can be selected.
In electrical and electronic equipment within the insulating material when it is exposed to high voltage, small current arc discharge, between them to withstand the initial difference in the immediate surface damage occurs, arc discharge caused by local thermal and chemical decomposition and corrosion and ultimately in the insulating material on the formation of conductive channels, when the formation of conductive channels within the material under test, it can be determined that the material has failed.
Equipment parameters
1. Arc through the time error: 1/8s through 7/8s break ± 5ms, the rest of the program is better than ± 1ms
2. Regulator capacity: 1kVA
3. Rated test voltage: 12.5kV
4.Maximum test voltage: 15.0kV
5. Test voltage accuracy: <1.0%
6. Accuracy of current measurement: <1.0%
7. Electrode pressure on specimen: (0.5±0.05)N
8. Electrode material: tungsten rod
9. Electrode distance: (6.35±0.1)mm
10.Ambient temperature: (23±2)℃.
11.Ambient Humidity: (50±5)%
12. Power supply: 220V±5% 50Hz 10A
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Fabric Downproof Tester(Rolling Box) - Test Equipment | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Standards GB/T 12705.1:Textile -Methods of testing the down-proof properties of f... |
 |
Thermal Protective Performance Tester (TPP) - lab instrument | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Email: serving@qinsun-lab。com We are a professional testing instrument manufactur... |
 |
Leather edge oil fatigue testing machine - Test Equipment | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Leather edge oil is made of polyvinyl chloride and other resins, used to coat leat... |
 |
Cross scratch tester | Testing Equipment | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Standards Automotive Standards: PV 3952. Ford BN 108-03. BMW 0180. DAF KEUR 00824... |
 |
Vehicle Cabin Air Filter Tester | The Vehicle Cabin Air Filter Tester is a precision instrument designed to evaluate the filtration performance of passenger compartment air filters ... |
