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Arc Resistance Tester NDH-15K
NDH-15KDive into the world of precision with our Arc Resistance Test System, meticulously engineered to meet the demanding standards of electrical insulation material testing. This high-precision equipment serves as a beacon of excellence, ensuring unparalleled accuracy and reliability in assessing your materials.,it's san ideal choice for in-depth analysis of electric insulation materials. Whether you are evaluating plastics, films, resins, mica, ceramics, glass, or insulating paints, this system provides superior assessment of arc resistance, proving vital in both product testing and the investigation of new electrical properties of materials.mics, glass, insulating paints, and other insulating materials for superior arc resistance evaluation,it also serves as a vital tool in product testing and the research of new materials' electrical properties.
Our insulation materials are renowned for their exceptional resistance to degradation from high-voltage arc activity. Typically, a standard arc flame causes carbonization on the material's surface until it becomes conductive. This sophisticated system measures the exact time taken for the arc to cease, providing critical insights. Utilizing two tungsten electrodes positioned at a precise distance on the sample plate,initially, the arc is intermittent. It gradually shortens over time, eventually leading to a continuous arc with rising current. The material faces increasingly severe arc conditions, culminating in failure. Arc resistance is essential for insulating materials in high-voltage switches or low-voltage, high-current switches, which frequently encounter arcs during operation. Only materials with superior arc resistance are deemed suitable.
When employed within electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges display distinct surface damage alterations near the arc. These discharges induce localized thermal and chemical breakdown and corrosion, ultimately forming a conductive pathway on the material. Once this conductive channel is established, the material is considered to have failed the test.
The Arc Resistance Tester conforms to standards such as GB1411, IEC61621, ASTMC495, UL746A, making it an indispensable instrument for rigorous simulated safety testing procedures.
Crafted to meet stringent standard requirements, the arc resistance tester features intricate electrical schematics and precision electrodes, ensuring accurate and reliable testing results.
| 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 properly grounded, maintaining grounding resistance at ≤4Ω for optimal safety and performance. ,The Supply and Demand parties agree that the supplier is responsible for providing comprehensive technical specifications, while the demander is tasked with establishing their own effective grounding system.
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