Information Tuesday about the TN-S/TT system #18

What does "Always on and on – measuring without switch-off" mean?

What does "Always on and on – measuring without switch-off" mean?

The linked article describes the continuous residual current measurement in earthed power supplies as well as the continuous monitoring of the insulation resistance in unearthed power supplies. The condition of the electrical installation is tested without having to switch it off.

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Always on