Re: FD10 Filter Question

[geraint@xxxxxxx]

Sounds the best way to do it to me....

I couldn't understand why the spark was running two lots of cable, it
may be that he intended to do it the way you mentioned, he's not
ready to hook the node 0 boxes up yet, until i've finished the
building work.
It's 16mm 70amp cable that has been run.

I was thinking that maybe the 200amp Filter on letsauto would
possibly be the best way of doing it. Fitting it before the mains
even hits the first consumer unit, straight after the main switch,
which as we have been discussing is where the ownership passes from
elctricity company to house owner.

Not that i'm going to do that, I've had enough of electricity shocks
thank you very much.

So when sparky comes to connect the consumer units, I should make
sure he does con1 and con2 off a feed from an mcb, and the same for
con3 and con4 ?

The cable is 70 amp rated, what mcb's should I be running off then ?

Regards

Geraint


--- In ukha_d@y..., "Keith Doxey" <ukha@d...> wrote:
> Are you saying you have this....
>
> MCB1 - CU1 - CU2 - CU3- CU4- MCB2 ?????
>
> That is not a ring !!!! That is a circuit fed from two breakers
which can be
> severly overloaded without tripping and even it one trip pops the
circuit is
> still live.
>
> The only reason for a ring main is to allow 18A cable to be used on
a 32A
> trip. The theory being that because it is a ring the current will
be shared
> equally by both cables at about 16A each.
>
> There is no advantage in using a 2.5mm ring instead of a 6mm single
cable.
>
> Why not do this
>
> MCB1 - CU1 - CU2
> MCB2 - CU3 - CU4
>
> Wherever you fit the filter it will block interference and X10 so
you would
> need this
>
> MCB1 - Filter - CU1 - CU2 - CU3 - CU4
>
> or better still
>
> Big MCB - Filter - CU0 fitted with 4 MCB's to feed each of the other
> consumer units.
>
> Anything anywhere else in the house would not get X10 from the
stuff on your
> consumer units.
>
> Keith
>
> > -----Original Message-----
> > From: geraint@a... [mailto:geraint@xxxxxxx...]
> > Sent: 12 August 2001 18:29
> > To: ukha_d@y...
> > Subject: [ukha_d] FD10 Filter Question
> >
> >
> > Hi,
> >
> > Question on the FD10.
> > I have the following setup on comsumer units :-
> >
> > The Main Household consumer unit feeding four more 20-way
consumer
> > units in node 0.
> >
> > I have the node 0 consumer units running from two MCB's from the
main
> > house unit in a ring circuit, so that the first feed hits
consumer
> > unit 1, then loops to 2, 3 and 4. 4 then has a return feed back
to
> > the main household one.
> >
> > Question is, where should I put the FD10 ?
> > Do I need to put one in unit 1 and unit 4, as 2 and 3 could take
> > power from number 4 bypassing the filter. Or even a filter per
unit ?
> >
> > I do suffer minor interference from neighbours, but nothing
major.
> >
> > Maybe i'm not understanding the filter properly.
> > Any ideas, suggestions ?
> >
> > Thanks as always.
> >
> > Geraint.
> >
> >
> > For more information: http://www.automatedhome.co.uk
> > Post message: ukha_d@y...
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> >
> >
> >


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