Timeline for What is the risk when floating oscilloscope and DUT?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Sep 6 at 18:20 | comment | added | Scott Seidman | @DreiDe -- Double insulating a scope can be difficult, as the ground lives on the BNC shield connector. | |
| Sep 6 at 14:00 | comment | added | Dereck | @DreiDe, touch it, and you will find out. You will not live long enough to figure out capacitive coupling to Earth—there are lots of dead utility linemen who discovered it the hard way. The transmission lines are Delta, with no reference to the ground. The line goes BOOM when it touches earth. | |
| Sep 6 at 8:31 | comment | added | DreiDe | Why should I get a shock from the 4800V scope chassis? When the voltage is not referenced to earth because of the isolation transformer and not pulled to Earth via the alligator Clip as the scope is also behind an isolation transformer i guess nothing would happen assuming a leakage free transformer. And depending on the DUT it might have a much larger exposed Metal area at 4800V than the scope that will be much more risky if it gets referenced to earth via an alligator clip in a non isolated scope environment. | |
| Sep 6 at 0:25 | history | edited | Dereck | CC BY-SA 4.0 |
added 118 characters in body
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| Sep 6 at 0:15 | history | answered | Dereck | CC BY-SA 4.0 |