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Arc Resistance Tester NDH-15K
NDH-15KImmerse yourself in the world of precision and accuracy with our Arc Resistance Test System. This masterpiece, designed to perfection, caters to the stringent requirements of evaluating electrical insulation materials. Truly, this state-of-the-art equipment stands as a beacon of excellence in its domain.,it's sthe ultimate choice for analyzing electrical insulation materials, encompassing plastics, films, resins, mica, ceramics, glass, insulating paints, and a diverse array of other insulating materials, ensuring superior arc resistance evaluation. It becomes an invaluable asset for product testing while probing the electrical properties of cutting-edge materials.
Our innovative insulation materials showcase extraordinary resistance to degradation from high-voltage arc activities. Conventionally, an arc flame sparks carbonization on the surface, rendering it conductive. This process is meticulously timed in seconds. Employing two tungsten electrodes set at a precise distance,the arc starts intermittently, progressively shortening until forming a continuous arc as current surges. The material endures increasingly harsh arc conditions, culminating in eventual failure. Arc resistance is crucial for insulating materials used in high-voltage switches or low-voltage high-current switches that regularly encounter arcs. Only materials with exceptional arc resistance meet the standard.
In the realm of electrical and electronic devices, insulating materials exposed to high-voltage, low-current arc discharges demonstrate distinct surface damage variations near the arc. These discharges induce localized thermal and chemical deterioration, creating a conductive path. Once a conductive channel is formed, the material is considered to have failed the test.
The Arc Resistance Tester adheres to standards such as GB1411, IEC61621, ASTMC495, UL746A, making it vital for executing simulated safety testing procedures.
Designed to meet stringent standard requirements, the arc resistance tester is equipped with detailed 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 adequately grounded, with grounding resistance maintained at ≤4Ω. ,The Supply and Demand parties agree that the supplier will provide technical specifications while the demander is tasked with setting up their own grounding system.
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