OK !!!!!! it's about the same current value that the electrical impulses
to the muscles in your right leg would produce in the time it takes you to
swing it over the arse of a horse.
Does this sound better ? :-() LOL
But does this mean that by the time you've tripped the RCD you could find
that you've accidentally mounted a horse?
That doesn't sound too safe to me......
(well, I'm bored. can't get into a piece of code, and there's no tennis on)
email me at
richard at olifant d-ot co do-t uk
I've just realised something Chris, you don't have my sense of humour. :-))
If you think of the human body as an electro-chemical machine, then the
electrical impulses sent to the large muscles in the leg through your
nervous system would amount to around the same amperage as it takes to trip
a 30mA RCD unit.
If this is wrong, then show me your proof that it is. If you can't, and
there are plenty medical sites on the WWW. to look through, then smile and
say to yourself "Well it may be true, it may not". Only one thing else
before I go. Why is the trip setting taken to be 30mA ?
Well, I have a sense of humour, but using 'silly', if not downright stupid,
analogies can be extremely misleading for people who don't really have too
much understanding about electrical theory.
The advantage of this and similar NGs is that people who are knowledgeable
in certain fields can impart some of that knowledge to others who are less
knowledgeable. As threads continue, misleading or erroneous information can
be shown for what it is, so the overall knowledge base grows.
You are making claims, I suggest, that are not particularly easy to
disprove, but equally aren't necessarily valid just because they aren't easy
to disprove. They do, however, have little or no bearing on electrical
But surely you know the answer to that question? You probably repeat it to
yourself every time you get onto your bike. Of course it also depends on how
wide you happen to have your legs as you stand before getting onto your
That's how implausible your analogy happens to be.
 As it happens, that will have some bearing on the effects of electric
shock, although most people wear shoes that offer some level of (imperfect)
protection. It does, however, have a much greater bearing on quadrupeds
if the leccy company's stuff goes faulty and they happen to get themselves
into a fairly steep potential gradient, i.e. there may be sufficient
potential difference between front and back legs to kill the animal - and it
 Never trust wellington boots, many are made with a high carbon content.
Although the linked site I have pasted below doesn't actually substantiate
my tounge in cheek babblings, it gives one reason why Residual Current
Devices, which detect a fault to earth only, are set in the Amperage region
of how they were designed to operate and that they have a set trip time of
somewhere around the settings they have been designed to work in. And, due
to the fact that I have had training in the treatment of electric shock
victims, and I have read the original posters questions and answers, and I
have conclude that he is not as stupid as to take my replies as written in
stone. Therefore, my replies were given to lighten up a rather long and
drawn out waffle about how safe an electrical installation should be. To
which, I can only respond with "As safe as is truely possible electricity
can be made". The link below shows the effects that an average adult male
human being will feel if they come into contact with an electrical potential
current flow at certain levels of Amperage. It shows that a certain current
level over a certain time is needed to cause these effects, and it gives a
rough idea of why an RCD is set the way it is for use in a domestic
It's basis is on research of electricution on the human body. Although, if
someone hasn't done the job right in the first place, as I think the
original post was asking, then, as in all circumstances of shoddy
workmanship, your arse may be firmly out the window. Now thank you and
goodbye to all who have contributed to the safety of the differing
technigues that may or may not be used in the installation of a domestic
electricity supply. To which the only answer possible is "The technigue
that is safest to use in the area in which it is to be used"
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