omg!!!! how much current will make a person tremble?

[W_Heisenberg]

I know the voltage on me is 60V rms. But how much current draw in my body?


Srsly, lab is dangerours.

 

[bigdogguru]

Srsly, lab is dangerours.

Yes, it is and under the right circumstances it can kill.

BigDog

 

[v_c]

Current draw depends on your resistance. The safe contact voltage on automotive systems is based roughly on this principle. I think in the US the maximum allowed voltage is 60V, in Europe it is 50 or 55V. I don't think it takes much current to cause damage -- I want to say mA (milliamps) of current is all it takes but I don't remember. If your heart is in the path of the current, it can cause some serious damage.

On most academic laboratories you won't see dc voltages any higher than +/-15V, so the highest differential is 30V and I think this is OK for the OSHA standard in the US.

Be very careful with any high voltages and proceed with caution.

Best regards,
v_c

 

[BradtheRad]

Even below 1 mA you can feel current in your body. That amount just barely lights an LED.

Wet skin reduces your resistance. Puts you at risk of lethal amounts of current.

Put (or hold) a diode in series with the juice. You can read the DC current directly on a meter.

And don't forget the reaction we have when shocked. We pull away quickly, sometimes injuring ourselves or someone else.

Do what electricians do. Keep one hand in your pocket when touching exposed conductors.

For a greater measure of safety, plug risky equipment into a receptacle with GFI (ground fault interrupt).