TheArtistFormerlyKnownAsSTR – Member
According to the regs you should have a value of at the most 200ohms (that would give a fault voltage of less than 50v )but there are so many variables I personally would not be happy if you had a value of more than 50 ohms cos I am a fussy shit and a neeedless to say fully qualified spark
Really?
Voltage is a constant in this scenario – let's say 240v, because we very rarely find 230v. It's current that kills and at 200 ohms resistance 1.2 amps will pass through under fault conditions. Approx 0.05 amps is enough to f*ck with your heart.
However your RCD should be 30ma (0.03 amps sensitivity), therefore will protect you from death if it's working correctly. TheArtistFormerlyKnownAsSTR – Member
According to the regs you should have a value of at the most 200ohms (that would give a fault voltage of less than 50v )but there are so many variables I personally would not be happy if you had a value of more than 50 ohms cos I am a fussy shit and a neeedless to say fully qualified spark
Really?
Voltage is a constant in this scenario – let's say 240v, because we very rarely find 230v. It's current that kills and at 200 ohms resistance 1.2 amps will pass through under fault conditions. Approx 0.05 amps is enough to f*ck with your heart.
However your RCD should be 30ma (0.03 amps sensitivity), therefore will protect you from death if it's working correctly.
You speak the truth 😳
In my defence I should of added that a TT instalation ( basically a system that need a earth spike) must be protected with a 30ma RCD to comply with the regulations so
If you have a 30ma fault current multiplied by 200ohms (ohms law is V=I x R)
you will be left with a potential fault touch voltage of 6 volts which is less than 50v fault voltage which is what I should of said