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Well I did it recently to prove whether or not an RCD would trip, and it hurt just as much as it always has and the RCD didn't trip and I tested it with a ramp tester. If you don't think you can hurt yourself, why not try it?

Hi Spartikus, Earthing: If you connect all accesible conductors to the earthing point of the installation, any one of those conductors coming into contact with an energised line circuit conductor will cause the circuit to be automatically disconnected within a specified time.

Bernard - a bird on a wire is a very long way from the mass of the earth. Why don't you try putting the back of your finger on an energised line circuit conductor, then you won't have to theorize any more. Please come back and describe the pain to me so I know that your telling the truth.

What's the question Matt? Bernard - for god sake just go and try it will you!

Hi Matt, This was the whole point of talking about 'neon screwdrivers', I did suggest that all of you should stand on floorboards in your slippers take off a socket front and try putting the back of your finger on a line circuit conductor, in order to prove to you all that this will result in...

Well Grizzly, Let us start by saying that a shower can be surface fed, usually this will be via a 'chrome' piece of pipe, this chrome pipe will usually be supplied by a flexible pipe once it dissappears under the floor or above the ceiling. Now all we need is a trail of leaking water from...

Grizzly, Your hero OMS suggested that a women could not be electrocuted in a shower unless she was in contact with an earthed conductor! That's just one example. Bernard, Your first entry suggested that a neon screwdriver would not work if the user was stood on a wooden floor, but your...

It appears that Mr. Sheds (in common with Mr. OMS from the IET forum), can only try to get people who disagree with them barred from the forums! The usual tactic is to try to provoke an angry response, but this is something new.

So we are getting a little bit too close to the truth and you would rather not talk about it any more.

Why would the thread entitled "a bit of bondage" be 'locked' on this forum?

Firstly, To the chap with the 'live' cable that wasn't connected at either end; do you trust your wife? Secondly, The idea of asking the question "how does a neon screwdriver work", was to assess whether or not everybody was aware that current will pass through the human body and that you...

Good, we all then now know that we are talking in terms of ohms law. Therefore what happens if our loop impedance is too great?

Firstly Bernard, Your reply is a little vague, please give us some examples of capacitive elements that the we 'must' be in contact with. Please remember that you are putting forward theoretical ideas on a subject where others are talking from first hand experience, it would be easy for you to...

Thank you all, this has been an excellent response, though I am slightly worried about Bernard Greens' thoughts; and I am a little concerned that nobody mentioned that you should avoid touching an earthed conductor whilst using one! But putting these things aside we are all in agreement that...

Nearly as clever as 'rotational torque'.

How does a neon screwdriver work? (Not the ones that are powered by a battery & I've already heard the one about rotational torque)

OK, let's start with something a little easier for those of us who lack a little self confidence in the subject. Can anybody see a relationship between nominal supply voltage (240v), perspective fault current and 'loop impedance'?

Are you saying that 'loop impedance' controls speed of isolation?

What does 'loop impedance' control?

Firstly Sparticus - the RCD trips within 0.04 of a second. Second - perhaps all of this will become clear when you look at the second method of combating high loop impedance. 413-02-04 (ii) of the 16th Edition - "protection shall be provided by means of a residual circuit device". All that...