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Arc Resistance Tester NDH-15K
NDH-15KDelve into the precision world of the Arc Resistance Test System, a marvel of engineering designed for the meticulous assessment of electrical insulation materials. This cutting-edge equipment represents the pinnacle of technological advancement in the testing arena.,it's sthe ultimate choice for evaluating electrical insulation materials, including plastics, films, resins, mica, ceramics, glass, insulating paints, and a wide range of other insulating materials, providing exceptional arc resistance analysis. It stands as an indispensable tool for product testing and exploring the electrical nature of new-age materials.
Our state-of-the-art insulation materials boast outstanding resistance to degradation from high-voltage arc activity. Typically, an arc flame initiates carbonization on the material's surface, progressively altering it until it conducts electricity. The precise time taken for the arc extinguishment is recorded in seconds. Equipped with two tungsten electrodes strategically placed on the sample plate,the arc intermittently begins, shortening progressively until it forms a continuous arc with increased current. Materials endure harsher arc conditions, leading to eventual failure. Arc resistance is crucial for insulating materials used in high-voltage switches or low-voltage high-current switches that frequently face arcs during operation. Only materials with superior arc resistance are deemed suitable.
In the sphere of electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges show distinct surface damage patterns near the arc. These discharges cause localized thermal and chemical degradation and corrosion, eventually creating a conductive path in the material. Once a conductive channel is established, the material is considered to have failed.
The Arc Resistance Tester conforms to standards like GB1411, IEC61621, ASTMC495, UL746A, making it an indispensable tool for executing simulated safety testing protocols.
Designed to meet stringent standard specifications, the arc resistance tester boasts a comprehensive set of electrical schematics and high-precision electrodes.
| Arc on/off time error | All program segments are superior±1ms | Voltage regulator capacity | 1kVA |
| Rated test voltage | 12.5kV | Maximum test voltage | 15kV |
| Electrode pressure on sample | (0.5±0.05)N | Electrode material | Tungsten bars |
| Test voltage accuracy | <1.5% | Current measurement accuracy | <1.5% |
| Distance between electrodes | (6.35±0.1)mm(IEC) (6.0±0.1)mm(ASTM) | Ambient temperature | (23±2)ºC |
| Ambient humidity | (50±5)% | Power supply | 220V±5% 50Hz 10A |
| Program segment | Arc current mA | Arc on&off time /s | Duration of each program segment/s | Total test time/s | |
| IEC 61621 | ASTM D495 | ||||
| 1 | 10 | 1/8son 7/8s off | 1/8son 7/8s off | 60 | 60 |
| 2 | 10 | 1/4s on 3/4s off | 1/4s on 3/4s off | 60 | 120 |
| 3 | 10 | 1/4s on 1/4s off | 1/4s on 1/4s off | 60 | 180 |
| 4 | 10 | Continuous power on | 60 | 240 | |
| 5 | 20 | Continuous power on | 60 | 300 | |
| 6 | 30 | Continuous power on | 60 | 360 | |
| 7 | 40 | Continuous power on | 60 | 420 | |
Note:Ensure all instruments and equipment are correctly grounded, maintaining grounding resistance at ≤4Ω. ,The Supply and Demand parties agree that the supplier will deliver technical specifications while the demander is tasked with establishing their own grounding system.
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