Electronics > Beginners
can i get killed by high voltage test set up
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Brumby:

--- Quote from: vk6zgo on December 31, 2018, 06:30:19 am ---A thousand volts  obeys Ohm's Law, just like any other voltage.

--- End quote ---

That statement unnerved me more than anything else written in this thread.


You have been desensitised to the risks by having an extended exposure to such an environment - and you will have learned to approach things appropriately.  The OP has shown no such knowledge and a thousand volts needs far more respect than ten, irrespective of Ohms Law.

If anything, publishing warnings about safety are - even if felt to be excessive by some - is the responsible thing to do, especially when people are asking some fundamental questions that clearly indicate they have next to no knowledge on the subject.

If those warnings are indeed over the top, then let them make that judgement call - hopefully based on understanding and not on the cavalier suggestion of someone who has decades of experience.

JMHO
IanB:
The device posted at the top of the thread undoubtedly would be used in context in a controlled situation where the operators have been thoroughly trained in how to use it safely and correctly. No untrained person would be allowed near it.

We have to suspect that the OP is not one of those trained people, and that perhaps the device is no longer in the original place where it was designed to be used.
vk6zgo:

--- Quote from: Brumby on December 31, 2018, 08:06:23 am ---
--- Quote from: vk6zgo on December 31, 2018, 06:30:19 am ---A thousand volts  obeys Ohm's Law, just like any other voltage.

--- End quote ---

That statement unnerved me more than anything else written in this thread.

--- End quote ---
It is nonetheless, true!, & if you were "unnerved", I'm glad I don't have to work on high voltage circuitry with you!

--- Quote ---You have been desensitised to the risks by having an extended exposure to such an environment - and you will have learned to approach things appropriately.  The OP has shown no such knowledge and a thousand volts needs far more respect than ten, irrespective of Ohms Law.

--- End quote ---
Looking back, you will find I was answering GeoffreyF, who compared 1000v to 100v.
Nobody mentioned 10v!
Quite a few people have been electrocuted by 125 v------ quite close to his 100v!
Almost certainly, thousands more than were ever electrocuted by 1000v!

In my first posting in this thread, I also pointed out that some high voltage sources had high internal resistance, so could not source enough current to be fatal
By the same token, the US 125v supply has a very low source resistance, can supply a fatal shock

--- Quote ---
If anything, publishing warnings about safety are - even if felt to be excessive by some - is the responsible thing to do, especially when people are asking some fundamental questions that clearly indicate they have next to no knowledge on the subject.


If those warnings are indeed over the top, then let them make that judgement call - hopefully based on understanding and not on the cavalier suggestion of someone who has decades of experience.

--- End quote ---
My suggestions were far from "cavalier".
On the contrary, they were reasoned, & gave the OP some useable instructions on how to work safely with any type of Mains supplied high voltage equipment.
OK, I did not make the point about capacitors retaining charge, but the original posting did not refer to opening up the equipment shown.

--- Quote ---
JMHO

--- End quote ---
Brumby:
OK.  Some of my comment seems misdirected because I did not make the connection between what you said and who you said it to...

However:


--- Quote from: vk6zgo on December 31, 2018, 11:13:27 am ---
--- Quote from: Brumby on December 31, 2018, 08:06:23 am ---
--- Quote from: vk6zgo on December 31, 2018, 06:30:19 am ---A thousand volts  obeys Ohm's Law, just like any other voltage.

--- End quote ---

That statement unnerved me more than anything else written in this thread.

--- End quote ---
It is nonetheless, true!, & if you were "unnerved", I'm glad I don't have to work on high voltage circuitry with you!

--- End quote ---
You really need to comprehend what was written.

I was "unnerved" at your statement because it was advice given on a thread where the OP obviously has NO fundamental understanding.  Not for my sake - but for theirs!

This is why I respond as I do in the Beginners section when potentially lethal voltages are being discussed, especially where there are participants that show their lack of knowledge.  You don't have to worry about me - but I would rather a newbie be given excess caution until they learn enough to be able to competently assess the risks and make their own decisions.
Synthtech:
To the OP - unless you have a very specific and reasonable purpose for that piece of equipment and looking at the physical condition I would treat it like an unpredictable junk yard Rottweiler and assume that it bites. At the very least have it inspected for safety by a competent person before you energise it. It is dangerous enough in good working order, if it has a fault then it’s even more so.
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