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(a) For AC power lines: ±2 kV test voltage in open circuit between line and earth and ±1 kV between lines (pulse 1.2 µs / 50 µs), with a rise time (Tr) of 1.2 µs, and a hold time (Th) of 50µs. Each surge shall be applied five times with a maximum delay of 1 minute between each pulse. This has to be applied for the following phases: 0, 90, 180 and 270 , |
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