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Arc Resistance Tester NDH-15K
NDH-15KImmerse yourself in the cutting-edge world of precision testing with our Arc Resistance Test System. It's expertly crafted to satisfy the rigorous demands of electrical insulation material examination. This state-of-the-art machine is truly a pinnacle of excellence in its field.,it's sthe ultimate choice for analyzing various electrical insulation materials like plastics, films, resins, mica, ceramics, glass, insulating paints, and many other insulating materials, ensuring an unparalleled arc resistance evaluation. This tool is also an invaluable asset for product testing and exploring the electrical properties of innovative materials.
Our advanced insulation materials display exceptional resistance to the degradation caused by high-voltage arc activity. Typically, a standard arc flame begins carbonization on the material's surface, transforming it until conductivity is achieved. The time taken for the arc to extinguish is accurately measured in seconds. Utilizing two tungsten electrodes placed at a specified interval on the sample plate,the arc initiates intermittently, progressively shortening until it forms a continuous arc as the current increases. The material faces increasingly intense arc conditions, ultimately leading to failure. Arc resistance is crucial for insulating materials in high-voltage switches or low-voltage high-current switches, which frequently encounter arcs during operation. Only materials with outstanding arc resistance are deemed suitable.
In the sphere of electrical and electronic devices, insulating materials subjected to high-voltage, low-current arc discharges exhibit unique surface damage variations near the arc. These discharges cause localized thermal and chemical degradation and corrosion, eventually forming a conductive pathway on the material. Once this conductive channel emerges, the material is classified as having failed the test.
The Arc Resistance Tester complies with standards such as GB1411, IEC61621, ASTMC495, UL746A, making it an indispensable instrument for executing simulated safety testing procedures.
Meticulously engineered to adhere to rigorous standard requirements, the arc resistance tester offers comprehensive 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 that all instruments and equipment are thoroughly grounded, maintaining grounding resistance at ≤4Ω. ,The Supply and Demand parties agree that the supplier will provide technical specifications while the demander is tasked with establishing their own grounding system.
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