That is difficult to answer because there is no fixed answer. As an experiment put both terminals of a 9V battery on you tongue. It will not hurt you but you will surely feel it. Now put your thumb across the terminals of that same battery. Two things should now be obvious to you: 1) that even low voltages can "hurt" you under the right conditions, and 2) voltage is not the only factor that determines how harmful.
A plug doesn't have any volts in it until you plug it into a wall outlet. A typical electrical wall outlet in a typical house in the US delivers electricity at @ 110 volts. Different countries in Europe use electricity that's around 200 volts; twice as many.
See it doesnt be harmful until you eat it.
Plastics are harmful because they are not biodegradeable (so they can stay in landfills or on streets until someone throws them away for many many many years) and when they melt/burn, they release chemicals into the air.
1.0 kilo volts = 1000 volts1000 effective volts is 1kV.
900,000 Volts. That is Nine Hundred Thousand volts.
Its not the volts that kill you ,its the amperage.
It's 5000 volts.
1 Mega-volt = 1,000,000 Volts2500 Mega-volts = 2,500,000,000 Volts