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Can power supply capacitors kill you?
Yes it can kill you if you open it up and start messing with loaded capacitors! Mounting a new PSU in a cabinet and plugging in all the low voltage DC connectors will not kill you!
How dangerous are PSU capacitors?
These capacitors can hold a charge an order of magnitude greater than any in even the most powerful PC power supply, and are designed to retain that charge for much longer. These capacitors are truly dangerous, and have killed CRT technicians in the past.
Why is it dangerous to touch a charged capacitor?
Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off.
How much voltage is too much for a capacitor to be harmful?
To do harm to your body, the voltage across the capacitor’s terminals must be high enough to cause a harmful effect on you. There are no hard rules for at what voltage things become harmful, but a common ‘rule of thumb’ is that DC up to 48 Volt is considered low voltage.
Is it OK to touch a fully charged capacitor?
Another thing you might want to avoid is touching the pins of a fully charged cap when you’re wet. Few sources show that the resistance of your body (let alone finger-to-finger) may get down to a few k Ω ′ s in such a conditions.
What causes an electric shock from a capacitor?
Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off. What corrective action was taken?
What is the voltage rating of a capacitor?
A capacitors voltage rating is the maximim that can be applied, not the charge on it, unless you apply this maximum voltage to the cap, it will only charge to the voltage you apply.