Electronics > Beginners

can i get killed by high voltage test set up

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fsr:
Yes, that's lethal. Ground fault interrupters trip around 5 to 30 mA. 200 mA thru your body can (and probably will) kill you.

Brumby:
To the Op:  If you have to ask the question, then, for your own safety, I would advise you to keep well clear of this item when in use.

Working with elevated voltages requires a certain level of understanding to remain safe - and it is rather clear you do not have this.

If high voltage stuff interests you, then I suggest you find a mentor who is competent and willing to sit by your side until you develop the knowledge and skills to work safely on your own.

EVEN THEN - don't work on your own.  Have someone stationed near a kill switch, watching you.  They don't need to be skilled in high voltage - only observant enough to know when to kill the power before the power kills you.

vk6zgo:
Working with high voltages isn't rocket science.
You wouldn't start your motorbike, get up to highway speeds, then step off without expecting something bad to happen.

The same goes for electrical safety.
If you want to mess around touching wiring, make sure the thing is switched OFF!.
The best way to do this is to switch the power off both on the device, & most importantly at the power source for the device.
If it has a lead & power plug, turn off the power point (if it has a switch) & unplug the lead.

If it is hard wired, identify the main safety switch (or circuit breaker) for the device on the appropriate power distribution panel, turn it off, & tag it, so nobody turns it back on.

Having done that, do your "fiddling", step away from the device & only then restore power, warning everybody in the area of what you are doing.

Obviously, experienced people do work on some activated equipment, but in many cases, the accessible power supplies are not capable of supplying sufficient current (either low voltages, or in some cases, high voltage supplies with quite high internal resistance).

GeoffreyF:

--- Quote from: vk6zgo on December 31, 2018, 02:19:00 am ---Working with high voltages isn't rocket science.
You wouldn't start your motorbike, get up to highway speeds, then step off without expecting something bad to happen.


--- End quote ---

Actually it is high voltage science.  People don't start a motor bike without knowing how to ride one.

It's definitely not existential philosophy such as yours.   You appear to believe that a thousand volts behaves like a hundred.  You never mentioned capacitors in shut off equipment or what an Arc flash is.  Do you know? You didn't say.

vk6zgo:

--- Quote from: GeoffreyF on December 31, 2018, 03:31:05 am ---
--- Quote from: vk6zgo on December 31, 2018, 02:19:00 am ---Working with high voltages isn't rocket science.
You wouldn't start your motorbike, get up to highway speeds, then step off without expecting something bad to happen.


--- End quote ---

Actually it is high voltage science.  People don't start a motor bike without knowing how to ride one.

It's definitely not existential philosophy such as yours.   You appear to believe that a thousand volts behaves like a hundred.  You never mentioned capacitors in shut off equipment or what an Arc flash is.  Do you know? You didn't say.

--- End quote ---

It also isn't something to run around shrieking in fear about. :scared:
A thousand volts  obeys Ohm's Law, just like any other voltage.

Yes, indeed, capacitors in shut off equipment can store a lot of energy------- a very valid point.
I didn't include a warning about that, because the OP was not playing around inside the equipment, which was being used to test other stuff, so I limited my advice to that.

In a career of over forty years working on high powered Broadcast & TV Transmitters, including all the high voltage supplies used in Tube equipment (commonly of the order of 10kV), & the associated 3 phase Mains supply wiring to them, I have never run into a case of Arc Flash.

Yes, it does happen, most often in the the power distribution industry, when people make mistakes, just as motorcycle accidents do, but it does not make basic advice about turning off Mains supplies to equipment invalid.

Actually, people do "start motorbikes without knowing how to ride one".

You can't get dual control motorcycles, so a learner is doing just that, & following the instructions of the person riding alongside them teaching them "to the letter".

If a prospective rider was regaled with all the gruesome details of what could happen in a bike smash, they would never try to learn.

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