RE: [OT] [slightly] Latching plug-in RCD

["Nigel Giddings" <nigel@xxxxxxxxxxxxxx>]

Steve,

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I take it you have a Consumer unit with an RCD fitted, probably with a
300m=
A trip?

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Is it set up for split load separating lights, and other fixed loads, and
o=
nly protecting the ring-mains with the RCD?

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Depending on your competence and if space is available in the Consumer
unit=
you may want to use an RCBO with a 30mA trip in place of the ring main MCB=
this would then trip before the main 300mA RCD, in fact you could use RCBO=
s for each of the circuits you want to protect although this can get
expens=
ive=85

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An example here HYPERLINK "http://tinyurl.com/gr3hm"http://tinyurl.com/gr3h=
m

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HTH

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Nigel

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_____=20=20

From: Steve Morgan [mailto:smorgo@xxxxxxx]=20
Sent: 23 July 2006 19:48
To: ukha_d@xxxxxxx
Subject: [ukha_d] [OT] [slightly] Latching plug-in RCD

=20

Something's causing the main RCD in the distribution board to trip with
annoyingly frequent irregularity. Trouble is, I can't for the life of me
find out what's causing it. Of course, it usually happens when I'm at work
and by the time I've got home, the UPSs have all shut down.

So, firstly, any suggestions for finding the problem?

I thought of using plug-in RCD adapters wherever there's a significant
amount plugged into a single socket (such as the AV kit, computer kit,
etc.=
)
in the hope that they might trip first (or at least, at the same time). The
trouble is, I'm having difficulty finding plug-in RCDs that don't
disconnec=
t
in the event of a power failure which (a) make it much harder to use them
a=
s
a diagnostic device, and (b) would be a real pain in the event of a
temporary power cut where all the kit would remain switched off.

Anyone know of a plug-in RCD that doesn't trip when the supply fails?

Cheers,
Steve



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