Рет қаралды 17,080
How do you measure the loop impedance ZS and how do you evaluate the measurement? The maximum permissible disconnection time and the disconnection current of the fuse used are taken into account.
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00:00 Aut. Shutdown and measurement process
01:23 Body and body contact / protective insulation
03:24 Requirements in the example (no RCD, TN-C-S, ...)
04:33 The shutdown time
05:15 Shutdown by a fuse
06:15 Direct measurement of the switch-off time
06:59 Basic procedure
07:30 Reading of the switch-off time from a LS characteristic curve
10:16 Application of the shutdown condition
12:13 A practice example
15:48 RCD and switch-off condition
16:32 Danger behind an RCD too
17:03 closing words
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