"John Rumm" wrote in message
...

Couple of wiki articles for your delectation and comments:

This one came out of discussions we have had in the past about wiring
failures on rings and radials, and how each of them cope with the faults.
I have added stuff on detecting, repair and test as well:

http://wiki.diyfaq.org.uk/index.php?...Circuit_faults

At some point in that article, I found need to talk about crimping cables.
So thought that probably deserved a section on its own. So I did a
pictorial tutorial:

http://wiki.diyfaq.org.uk/index.php?...Cable_crimping

Comments here on on the wiki discussion page as you prefer.


--
Cheers,

John.


John,
a nice article on testing thanks. A few points:

1. Since wiki is available world-wide should you say that you are referring
to UK standards?

2. Are you specifically targetting testing of sockets? If lighting
circuits are involved then there are other issues like switches being on for
testing (all combinations for 2 way switching), bulbs out.

3. Views on other tools? Neon testers (love or hate them?) Electronic
induction things (ditto)?

4. Suggest you add that conductors should be checked before you touch them
(Faulty switch? Wrong switch? Is it up or down for off?).
That you should ensure that others cannot alter switches.
That all circuits are isolated before you disconnect any wiring - even
neutrals (in case of cross connected circuits).

5. Is there a mismatch between the sort of meter you indicate and the sub
ohm values which you refer to in your tables on continuity testing? To
be honest you're probably only looking for an indicated value the same as
shorted leads or for no needle movement at all and I can't think of many
circumstances where that will not be adequate though it will be an issue if
you are completing test reports. Maybe you need to acknowledge that such
testing is on the limits of inexpensive meters?

6. How do you test RCD? Is the test button adequate? A plug with a big
fat resistance of 8K ohm between L and E? Mega expensive test meters which
time the disconnect?

7. How can you test that the earth to the house is okay? Continuity
between N and E?

8. A short glossary? CPC? RCD? MCB? T&E?

thanks again

Phil