I don't intend to deliberately do this, but...
Hypothetically, let's say I've got my DMM in voltage measurement mode with the probes plugged into the appropriate sockets. Now, if one probe is connected to line voltage, and the other probe isn't touching anything, does the second probe present a possible shock hazard? If I touched the floating probe with one hand and my other hand was grounded, could I get shocked?
I would've thought the answer was no. I'd assumed that there was enough impedance to make the loose probe harmless.
The reason I ask is because l was talking with a co-worker about the new-ish Fluke T6 series of electrical testers, and he directed me to the following video:
The video includes a lot of cursing and name calling because he's frustrated with how poorly the unit works, but the intriguing part starts around 5:30 into the video.
The T6 line includes non-contact voltage measurement which requires a ground, and one grounding option is through the hand of the user. In the video, he lays out a scenario where the user could could be exposed to line voltage through the inputs of the meter. I'm not surprised he can get a scary looking voltage reading for the video, but I'd have thought it was a "ghost" voltage through massively high impedance, and that you could touch it without being harmed.
It's hard for me to imagine that Fluke made a product with the risks implied in the video, and my understanding of meters would've told me this should be harmless, but I'm just not sure. What do you think?
Hypothetically, let's say I've got my DMM in voltage measurement mode with the probes plugged into the appropriate sockets. Now, if one probe is connected to line voltage, and the other probe isn't touching anything, does the second probe present a possible shock hazard? If I touched the floating probe with one hand and my other hand was grounded, could I get shocked?
I would've thought the answer was no. I'd assumed that there was enough impedance to make the loose probe harmless.
The reason I ask is because l was talking with a co-worker about the new-ish Fluke T6 series of electrical testers, and he directed me to the following video:
The video includes a lot of cursing and name calling because he's frustrated with how poorly the unit works, but the intriguing part starts around 5:30 into the video.
The T6 line includes non-contact voltage measurement which requires a ground, and one grounding option is through the hand of the user. In the video, he lays out a scenario where the user could could be exposed to line voltage through the inputs of the meter. I'm not surprised he can get a scary looking voltage reading for the video, but I'd have thought it was a "ghost" voltage through massively high impedance, and that you could touch it without being harmed.
It's hard for me to imagine that Fluke made a product with the risks implied in the video, and my understanding of meters would've told me this should be harmless, but I'm just not sure. What do you think?