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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 demands of rigorous electrical insulation material testing. This state-of-the-art high precision equipment stands as a beacon of excellence and innovation in the field, setting the standard for quality and reliability.,it's san ideal choice for evaluating electric insulation materials, including a diverse array of plastics, films, resins, mica, ceramics, glass, insulating paints, and other insulating materials for superior arc resistance evaluation, it also serves as an indispensable tool in product testing and groundbreaking research into new materials' electrical properties.
Our insulation materials showcase exceptional resistance against degradation from high-voltage arc activity. Typically, a standard arc flame induces carbonization on the material's surface until it becomes conductive. The duration for the arc to cease is measured in seconds. By strategically employing two tungsten electrodes, placed at a precise distance apart on the sample plate,initially, the arc is intermittent, gradually shortening and culminating in a continuous arc with increasing current. The material is subjected to progressively harsh arc conditions, leading ultimately to failure. Arc resistance is crucial for insulating materials in high-voltage switches or low-voltage high-current switches, as these components frequently endure arcs during operation. Only materials with exceptional arc resistance qualify as viable choices.
When used in electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges exhibit marked variations in surface damage near the arc. Such discharges result in localized thermal and chemical breakdown and corrosion, eventually forming a conductive path on the material. Upon establishing a conductive channel, the material is deemed to have failed the test.
The Arc Resistance Tester aligns with prestigious standards such as GB1411, IEC61621, ASTMC495, UL746A, serving as an indispensable instrument for simulated safety testing procedures, ensuring adherence to global safety norms.
Crafted to meet stringent standard requirements, the arc resistance tester incorporates detailed electrical schematics and precision electrodes, ensuring reliability and accuracy in every test performed.
| 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, with grounding resistance maintained at ≤4Ω to guarantee operational safety and measurement accuracy. ,The Supply and Demand parties concur that the supplier is responsible for providing comprehensive technical specifications while the demander is tasked with establishing their own reliable grounding system.
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