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BigWallop
 
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Default Isolation switch wiring convention


"ARWadsworth" wrote in message
...
Hi

Quick question: whenever I've seen DP isolation switches in

consumer
units
the supply wires invariably enter the switch from the top, obviously
because
the busbar is connected to the bottom. However, I'm just about to

add
an
isolation switch between the meter and a connection block and was
wondering
whether I should maintain this convention, i.e. that the meter tails

are
connected to the uppermost contacts of the switch?

I guess the switch might specify which are the Feed and Load

terminals,
in which case I used them even if they were at the top. Nor reason
though why you couldn't feed the tails in from below and then run up
inside to the other terminals. Assuming there is enough space.


--
Chris French, Leeds

You could buy some new tails. Only a few quid.

..but you'd need to break the meter seal (or get the leccy board to do

it)
to connect them.

I think this group has been down this road many times. At the end of the
road the tails do belong to the owner of the house not the leccy co.
Adam



It is far better to take any steps that are necessary to do a job properly.
If this means removing the seals on the meter, then remove the seals and do
the work correctly and safely. If you're already taking the seal off the
mains fuse holder, then why not take the seal off the meter as well and
replace the tails with properly measured and tidy ones and make the job look
the way it should.

The electricity supplier will be more grateful to you, if you ask them to
check the work and allow them to make sure that the installation is safe and
secure, bot just for them, but for your own safety also. A test request is
sent easily by postcard, obtainable from any electrical wholesaler, and they
send you enough notice of appointment to be there and have them carry out,
what is only about an hours work, and then when the seals are replaced, it
at least shows that the work is up to some sort of safe standard, or it
won't get connected and sealed until it is put right.

All new builds and refurbs' must go through this procedure, so it is not an
uncommon occurance for any of the electricity suppliers.

Do the job correctly first time, and save yourself problems in the future.