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1662/1663/1664 FC
Users Manual
60
Auto Start
Auto Start enables faster testing and is a power-up option. When the Tester
detects mains voltage in the loop/line or RCD tests, the test starts automatically
without pushing .
Loop Impedance Test with 10 mA RCD
For a Loop impedance measurement in a 10 mA RCD circuit, the tripping time
RCD test is recommended. Use a nominal test current of 10 mA and the factor
x ½ for this test.
If the fault voltage is <25 V or 50 V, dependent on the local requirement, the
loop is good. To calculate the loop impedance, divide the fault voltage by 10
mA (Loop impedance = fault voltage x 100).
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