High Voltage Danger? When?

[therian]

Dont forget that electrons ALWAYS travel by least resistive path, if you touch hight voltage most electrons will not go deeper than you skin and travel from one point to another by skin, so you heart will not sense a tenth % of current you skin experience, So use this property when working with hight voltage use just 1 hand and in worst situation you will bun you hand not heart.

Dont forget that (current = voltage ÷ resistance) is ideal but dont apply to real world, all powersuply have limited amount of amps it can supply and usually it less than few amps, TV flyback transformer output 20,000 ~ 100,000 Volts but limited to only few miliamps of current, and I accidentally shock myself many times, it painful especially arm to arm but not dangerous.

but be careful with capacitors (current = voltage ÷ resistance) apply almost as ideal to them , it can give so many amps for a millisecond, that it will literally trow you into sealing

And there is one more issue, in real world usually it not voltage or ampers that do damage, it you muscle, shocking yourself will contract them really fast and just imagine stand near glass window, you can break it and cut youself badly.

[Luciano]

@therian

You wrote:
Dont forget that electrons ALWAYS travel by least resistive path, if you touch hight voltage
most electrons will not go deeper than you skin and travel from one point to another by skin, so
you heart will not sense a tenth % of current you skin experience, So use this property when
working with hight voltage use just 1 hand and in worst situation you will bun you hand not heart.

And then you also wrote:
And there is one more issue, in real world usually it not voltage or ampers that do damage,
it you muscle, shocking yourself will contract them really fast and just imagine stand near
glass window, you can break it and cut youself badly.

* * *

What about if you are wearing leather sole shoes and your feet and soles are humid and the floor
is conductive? Will your one hand method work? I don't think so.

What about if while your are working with your one hand method you get shocked and an uncontrolled
muscle contraction makes your other hand touch the rest of the circuit?

The skin is not electrically insulated from the rest of the body!
(See sweat glands and sweat pores, see sebaceous glands).



* * *

There are young people reading this thread so please do not post information that could be dangerous.


Best regards,

Luciano

[therian]

What about if you are wearing leather sole shoes and your feet and soles are humid and the floor
is conductive? Will your one hand method work? I don't think so.

Will the 2 hands method work better ? =)

What about if while your are working with your one hand method you get shocked and an uncontrolled
muscle contraction makes your other hand touch the rest of the circuit?

What about if while your are working with your 2 hands method you get shocked and an uncontrolled
muscle contraction makes your head touch the rest of the circuit? =)

The skin is not electrically insulated from the rest of the body!

it not but it usually salty enough to be good conductor

I knew someone will say about floor contact but I believe people sane enough not to touch main power staying in a salty water. I told one hand method it safer not total safe, but chance of dying reduce greatly so why not to use this opportunity.

[mackrackit]

I knew someone will say about floor contact but I believe people sane enough not to touch main power staying in a salty water. I told one hand method it safer not total safe, but chance of dying reduce greatly so why not to use this opportunity.

The only safe way to work around anything above 40 volts is to follow lock out / tag out procedures.

I am the operations manager for a large chemical company and electricity is but one of the many hazards my crew and myself have to contend with. We have set safety standards so that everyone goes home to their family at the end of the day.

You check as many times as needed to make sure the system is "dead" and that there is no way the system can become "live". This goes for computers that control the systems also. Do you really want to put your life in the hands of a faulty relay?

There is ABSOLUTELY no reason to work on a "live" system.

I have heard the "one hand method" more times than I care to count. When I do hear it the person who said it is off the job.

Ma'am, I am sorry to tell you this... you husband is dead. It could have been worse though. He could have been using both hands.