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Arc Resistance Tester NDH-15K
NDH-15KImmerse yourself in the realm of precision testing with our Arc Resistance Test System, meticulously engineered to meet the exacting demands of electrical insulation material examination. This state-of-the-art equipment stands as a pinnacle of excellence, offering unparalleled precision and reliability.,it's sthe quintessential choice for analyzing electrical insulation materials, including plastics, films, resins, mica, ceramics, glass, insulating paints, and an extensive array of other insulating materials. It ensures superior arc resistance evaluationand is also an indispensable asset for product testing and exploring the electrical properties of cutting-edge materials.. It serves as an essential tool in both the innovation and quality assurance sectors.
Our cutting-edge insulation materials exhibit remarkable resistance to degradation caused by high-voltage arc activity. Normally, a standard arc flame begins carbonizing the material's surface until it becomes conductive. The exact time for the arc to extinguish is measured in seconds. Employing two tungsten electrodes placed precisely on the sample plate,the arc initiates intermittently, progressively shortening until forming a continuous arc as the current rises. The material is gradually subjected to increasingly severe 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 exceptional arc resistance are deemed suitable.
In the realm of electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges reveal distinctive surface damage variations near the arc. Such discharges cause localized thermal and chemical deterioration and corrosion, ultimately forming a conductive pathway on the material. Once a conductive channel emerges, the material is considered to have failed the test.
The Arc Resistance Tester is aligned with standards such as GB1411, IEC61621, ASTM C495, and UL746A, making it an indispensable instrument for conducting simulated safety testing procedures.
Engineered to meet rigorous standard requirements, the arc resistance tester features 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 all instruments and equipment are properly grounded, maintaining grounding resistance at ≤4Ω. ,The Supply and Demand parties agree that the supplier will provide technical specifications while the demander is responsible for establishing their own grounding system.
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