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A bit of bondage!

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The RCD will prevent a shock of 30mA, but will not prevent a shock of an extended duration of a magnitude of less than 30mA

No it won't.

RCDs do not prevent electric shock. It will not not limit the shock current to 30mA or less either.

All an RCD does is limit the shock duration.


Even after all this time you still have absoloutly no idea what you're talking about do you?

Every time you open your mouth you prove that little bit more how little you actually understand about electrical principals, and where and why regulations apply.

It would be laughable if it wasn't for the fact you are charging unsuspecting members of the public for this utter drivel.
 
RCDs do not prevent electric shock. It will not not limit the shock current to 30mA or less either.

Correct, the shock has to be above 30mA for the RCD to trip. Lower currents through the body can be fatal due to immediate electrocution but the RCD will not operate.

All an RCD does is limit the shock duration.

The duration is still long enough for the person to feel the shock and if not dead as a direct result of the shock, recoil and suffer consequential injury or death from a fall or other shock induced action.

Where the RCD comes into it's own is in the prevention of fire from earth leakage problems. It can also help prevent electrical shock from items that are poorly earthed ( high impedance to earth ) that have due to a fault or accident come into contact with a live conductor. Provided the poor earth is able to carry 30mA then the RCD will trip and remove the power source.

So in short the RCD is NOT a means to prevent electric shock. it can only at best reduce the effect of a fault.
 
A 30mA RCD is a recognised way of providing supplementary protection against an electric shock that could cause fibrilation. (ie a potentially fatal shock)
Nothing can predict or account for a persons physical reaction to receiving a shock of any magnitude.
 
I just have a sneeky feeling he is one of the regulars on here under a different guise................

hmmm, i suspect you may be right. I wonder who this super hero is?

Could it be Sarge, Rosemary the telephone operator , henry the mild mannered janitor, bernard, sheddy, Keyser Sose :)
 
Regarding the original book, what was the purpose of creating it?

Financial gain? No, since the number of copies sold would be tiny even if it was written properly.
Personal ego? No, there is so little content that no one would be fooled into thinking it was a worthwhile endeavour.
A desire to better inform others? No, since the entire book is totally wrong and even someone with limited knowledge of the subject wouldn't be fooled.

Therefore the only logical conclusion is that the author of this publication created it specifically to rile others and cause dissent. An objective which the author appears to have achieved.
 
There appears to be two points still to raise:

Point one; is that there still appears to be a number of you who are prepared to theorise about a subject that is very easy to prove, if you are not prepared to go upstairs and touch an energised circuit conductor please do not come on here shouting your mouths off on your theories about what RCD's can or cannot do.

Point two; the EAWR applies whilst people are at work and whilst installation work is being undertaken. The reason for this is so that the Police are not oblidged to prosecute a member of the public who might accidently disconnect an earthing conductor and cause the death of his own child as a result.
As far as the Electrician is concerned, an installation will not be regarded as finished until such time as all earthing conductors are in place. This is reflected by our testing schedule, the very first thing on the list is to check the "continuity of protective conductors including main and supplementary equipotential bonding". If an Electrician has failed to do this then he should not yet have turned on the power because the installation is incomplete, leaving him liable for prosecution if anybody is injured or killed as a result.
 
There appears to be two points still to raise:

Point one; is that there still appears to be a number of you who are prepared to theorise about a subject that is very easy to prove, if you are not prepared to go upstairs and touch an energised circuit conductor please do not come on here shouting your mouths off on your theories about what RCD's can or cannot do.
Don't talk such rubbish, I don't have an RCD on any of my upstairs circuits. :P

Point two; the EAWR applies whilst people are at work and whilst installation work is being undertaken.....
The EAWR do not apply to DIY in your own home.
 

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