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| Brand | Guance Instruments |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | NDH-B3 |
| Instrument Type | Electronic Universal Testing Machine |
| Arc On/Off Time Accuracy | < ±1 ms |
| Voltage Regulation Capacity | 3 kVA |
| High-Voltage Transformer Capacity | 3 kVA, 0–20 kV Output |
| Rated Test Voltage | 12.5 kV |
| Voltage Accuracy | ±1% |
| Current Control Accuracy | ±3% |
| Current Measurement Accuracy | ±1.5% |
| Electrode Force on Specimen | (0.5 ± 0.05) N |
| Electrode Material | Tungsten Rod |
| Electrode Spacing | (6.35 ± 0.1) mm (IEC), (6.0 ± 0.1) mm (ASTM) |
| Ambient Temperature | (23 ± 2) °C |
| Ambient Humidity | (50 ± 5)% RH |
| Input Power | 220 V AC / 50 Hz |
| Output Voltage Range | 0–17.5 kV AC |
| Test Current Settings | 10, 20, 30, 40 mA |
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