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Arc Resistance Tester NDH-15K
NDH-15KImmerse yourself in the realm of unparalleled precision with the Arc Resistance Test System, meticulously engineered to meet the demanding requirements of electrical insulation materials testing. This high-precision instrument stands as a paragon of excellence, setting the benchmark in the industry.,it's sthe quintessential solution for evaluating electric insulation materials, encompassing plastics, films, resins, mica,ceramics, glass, insulating paints, and a myriad of other insulating substances for unmatched arc resistance assessment. Moreover, it stands as a crucial asset for product testing and pioneering research into the electrical properties of novel materials.
Our insulation materials exhibit exceptional resilience against degradation from high-voltage arc interactions. Typically, a standard arc flame induces a carbonization process on the material's surface, eventually leading it to become conductive. The arc's duration is precisely measured in seconds. Utilizing two tungsten electrodes positioned at an optimal distance on the sample plate,initially, the arc manifests intermittently. It then progressively shortens, evolving into a continuous arc with escalating current levels. Under progressively severe arc conditions, the material ultimately succumbs to failure. Arc resistance is paramount for insulating materials used in high-voltage switches or low-voltage high-current switches, as these are frequently exposed to arcs during operational use. Only those materials which demonstrate superior arc resistance are viable options.
In electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges exhibit distinct surface damage near the arc. These discharges lead to localized thermal and chemical breakdown and corrosion, eventually creating a conductive channel on the material. Once such a channel forms, the material is deemed to have failed the standard test.
The Arc Resistance Tester adheres to industry standards such as GB1411, IEC61621, ASTMC495, and UL746A. It serves as an indispensable instrument for conducting simulated safety testing procedures.
Engineered in compliance with rigorous standard requirements, the arc resistance tester integrates comprehensive electrical schematics and precision-engineered 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 securely grounded, maintaining grounding resistance at a maximum of ≤4Ω. ,The Supply and Demand parties acknowledge that the supplier bears the responsibility for providing technical specifications while the demander is tasked with establishing a reliable grounding system.
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