What voltage is dangerous?

Question

What voltage is dangerous or/and deadly? How can I safely tell what voltage an appliance or other electrical item has? Is this something I can even do myself?

John · Accepted Answer

Any Voltage can be dangerous it really depends on what you're trying to do. You can do it yourself there are good voltage testers you can buy but once again if you don't know what you're doing I would get a professional to do it for you, or at least more info needed as to what you are trying to achieve.

Thomas · Answer

I would strongly advise you to get an electrician in to have a look if your unsure and not qualified.

Raddius · Answer

All voltage is considered dangerous when working on electricity, you must isolate before you begin work.

Paul · Answer

Anything above 50v  as any more is considered dangerous

Bill · Answer

All voltages are dangerous 
Any amount can kill 
Items that are SELV or safe extra-low voltage 
Are the safest but still need careful handling

Samuel · Answer

The standard requires electrical safety devices such as a residual circuit breaker so that there is no uncontrolled danger. The voltage on socketes and switches and lights is 240Volts high voltage. So everything about tension has to be done by a professional.

Denis · Answer

The appliance in your house has a nominal voltage of 230 Volts. They can be dangerous if faulty and not adequately protected with an automatic disconnection device. However, things like a mobile phone have a transformer which reduces the voltage to below 50 volts. I do not recommend you touch any live wire irrespective of its voltage.

Robert · Answer

In industry, 30 volts is generally considered to be a conservative threshold value for dangerous voltage. The cautious person should regard any voltage above 30 volts as threatening, not relying on normal body resistance for protection against shock.
But the voltage going to your appliance if in any domestic dwelling would be 230volts ac as standard you could test this at the live and earth connection inside the appliance with a multimeter if it is any lover that 220v there is probably a fault in the supply.

What voltage is dangerous?

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