Re: Updated pics of my loft conversion

["Raymond Kelly" <raymondtkelly@xxxxxxxxx>]

I was reading about this on the cbusforums and suspect that the MCB's
will
never trip in time to protect the traics. Its more a good practice thing
done specifically in the UK during the install phase apparently.
I'm still fitting Type B's anyways - cause I've gone and bought em
already!!


On 24/01/2008, Dean Barrett <dean@xxxxxxx> wrote:
>
>
> We've been working with an alternative lighting control system
following
> years of Cbus - mainly due to customers not liking the Cbus
contemporary
> design.
>
> Their system comes protected with 'B's - one of my guys managed to
create
> a
> dead short which the 'B' was to slow to re-act and it blew the Triac.
>
> The good thing with this system is that the triacs are all engineer
> replacable and my guy's now carry a few spares in case of emergency :)
>
> Having protected all our CBus installs with 'B's for years - I now
wonder
> if
> we have just been lucky that we havent lost any triacs in them....
>
> Dean.
>
> -----Original Message-----
> From: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com> [mailto:
> ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>] On Behalf Of
> Paul Gale
> Sent: 24 January 2008 08:07
> To: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> Subject: RE: [ukha_d] Updated pics of my loft conversion
>
> I might have been mistaken then - I remember fitting a different type
of
> MCB
> in my workshop to protect woodworking equipment. Maybe it was type D?
>
> Paul.
>
> > -----Original Message-----
> > From: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com> [mailto:
> ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>] On Behalf
> > Of Neil Ball
> > Sent: 23 January 2008 22:43
> > To: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> > Subject: RE: [ukha_d] Updated pics of my loft conversion
> >
> > Type D is common for larger motors & compressors, it is what
I have on
> > my heat pump for example. My Helvar lighting panels use type C
> > breakers to protect the load side of the dimmer but then again
their
> > dimming technology does not use triacs. Other kit I use which is
triac
> > based specifies type B breakers although this equipment is used
for
> > heating controls and not subject to the regular load failures
that
> > occur with lighting and filament lamps. I've been recommended to
> > always fit internally fused lamps as a further level of
protection on
> > lighting control installs as a belt-and-braces approach.
> >
> > Neil B.
> >
> > -----Original Message-----
> > From: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com> [mailto:
> ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>] On Behalf
> > Of Paul Gale
> > Sent: 23 January 2008 21:02
> > To: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> > Subject: RE: [ukha_d] Updated pics of my loft conversion
> >
> > Aren't the type C also used for inductive loads like motors etc -
so
> > they don't blow quite so quickly as the type B?
> >
> > Paul.
> >
> >
> >
> > > -----Original Message-----
> > > From: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
[mailto:
> ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>] On
> > Behalf
> > > Of Paul Robinson
> > > Sent: 23 January 2008 20:54
> > > To: ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> > > Subject: Re: [ukha_d] Updated pics of my loft conversion
> > >
> > > I have my cbus split across two boards, with each board
protected by
> > an
> > > MCB. Then another MCB on the input to each dimmer, and an
MCB on the
> > > output of each channel (possibly overkill, but it works).
> > I
> > > used to have type B everywhere, but found that when a
halogen blew,
> > > it would usually take out three MCBs - including the one
protecting
> > > the whole of one board. I changed the board MCB to a type C,
and now
> > > I rarely have that problem.
> > >
> > > Paul
> > >
> > > ----- Original Message -----
> > > From: "Raymond Kelly"
<raymondtkelly@xxxxxxx<raymondtkelly%40gmail.com>
> >
> > > To: <ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>>
> > > Sent: Wednesday, January 23, 2008 6:59 PM
> > > Subject: Re: [ukha_d] Updated pics of my loft conversion
> > >
> > >
> > > > I've got Type B MCB's on my Channel outputs. Should I
also have
> > used
> > > > Type C's. Just got me thinking
> > > >
> > > > On 23/01/2008, Paul Gale
<groups2@xxxxxxx<groups2%40siliconpixel.com>>
> wrote:
> > > >> They're C rated 1 Amp.
> > > >>
> > > >> Paul.
> > > >>
> > > >>
> > > >>
> > > >> > -----Original Message-----
> > > >> > From: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com> [mailto:
> ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>] On
> > > Behalf
> > > >> > Of Jon Wilkins
> > > >> > Sent: 23 January 2008 18:10
> > > >> > To: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>
> > > >> > Subject: Re: [ukha_d] Updated pics of my loft
conversion
> > > >> >
> > > >> > What rating are they? Presumably pretty low?
(I'm not sure
> > > >> > how
> > > low
> > > >> > you can
> > > >> > generally get MCBs)
> > > >> >
> > > >> > On Jan 23, 2008 6:05 PM, Paul Gale
<groups2@xxxxxxx<groups2%40siliconpixel.com>
> >
> > > wrote:
> > > >> >
> > > >> > > MCB's to protect the CBus units when a
lamp blows - extra
> > > insurance
> > > >> > > really.
> > > >> > >
> > > >> > > Paul.
> > > >> > >
> > > >> > >
> > > >> > >
> > > >> > > > -----Original Message-----
> > > >> > > > From: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>
> > > >> > > > [mailto:ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>]
> > > On
> > > >> > Behalf
> > > >> > > > Of Jon Wilkins
> > > >> > > > Sent: 23 January 2008 18:00
> > > >> > > > To: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>
> > > >> > > > Subject: Re: [ukha_d] Updated pics
of my loft conversion
> > > >> > > >
> > > >> > > > Similar question, you've got a bank
of switches or MCBs at
> > the
> > > >> > bottom
> > > >> > > > of
> > > >> > > > each hager panel.
> > > >> > > > Are these on the run from the CBUS
unit back to the light?
> > if
> > > so,
> > > >> > are
> > > >> > > > they
> > > >> > > > MCBs or just "simple"
switches to provide mechanical
> > > isolation?
> > > >> > > >
> > > >> > > > On Jan 23, 2008 5:09 PM, Paul Gale
> > <groups2@xxxxxxx <groups2%40siliconpixel.com>>
> > > >> > wrote:
> > > >> > > >
> > > >> > > > > Yes - they're 10A MCB's
> > > >> > > > >
> > > >> > > > > Paul.
> > > >> > > > >
> > > >> > > > > > -----Original Message-----
> > > >> > > > > > From: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>
> > > [mailto:ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>] On
> > > >> > > > Behalf
> > > >> > > > > > Of Raymond Kelly
> > > >> > > > > > Sent: 23 January 2008
16:59
> > > >> > > > > > To: ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>
> > > >> > > > > > Subject: Re: [ukha_d]
Updated pics of my loft
> > > >> > > > > > conversion
> > > >> > > > > >
> > > >> > > > > > Paul,
> > > >> > > > > > On the CBus units I see
that you have an MCB? (red
> > switch)
> > > on
> > > >> > the
> > > >> > > > > > input of each. Are these
the CBus Dimmer units and what
> > is
> > > the
> > > >> > > > rating
> > > >> > > > > > of this MCB.
> > > >> > > > > > I assume if 1A perchannel
on a 8 Channel dimmer should
> > be
> > > 8A -
> > > >> > I'm
> > > >> > > > > > good at maths me
> > > >> > > > > >
> > > >> > > > > > Cheers
> > > >> > > > > >
> > > >> > > > > > On 23/01/2008, Paul Gale
<groups2@xxxxxxx<groups2%40siliconpixel.com>
> >
> > wrote:
> > > >> > > > > > > You can also get the
other type that has a small
> > > >> > > > > > > black
> > > >> > plastic
> > > >> > > > insert
> > > >> > > > > > that you put the wires
into first - probably just as
> > easy
> > > to
> > > >> > use
> > > >> > > > and a
> > > >> > > > > > lot, lot cheaper.
> > > >> > > > > > >
> > > >> > > > > > > Paul.
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > >
> > > >> > > > > > > > -----Original
Message-----
> > > >> > > > > > > > From:
ukha_d@xxxxxxx<ukha_d%40yahoogroups.com>
> > > >> > [mailto:ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>] On
> > > >> > > > > > Behalf
> > > >> > > > > > > > Of Mike
Griffiths
> > > >> > > > > > > > Sent: 22 January
2008 23:20
> > > >> > > > > > > > To:
ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> > > >> > > > > > > > Subject: RE:
[ukha_d] Updated pics of my loft
> > > conversion
> > > >> > > > > > > >
> > > >> > > > > > > > I went for it
Chris Though only to allow me to make
> > > >> > > > > > > > Cat5
terminations on
> > a
> > > one
> > > >> > by
> > > >> > > > one
> > > >> > > > > > basis
> > > >> > > > > > > > If I needed more
than that I would get someone who
> > had
> > > >> > better
> > > >> > > > > > eyesight
> > > >> > > > > > > > than me!!!
> > > >> > > > > > > > Mike
> > > >> > > > > > > > Not getting old
just lazy!!
> > > >> > > > > > > >
> > > >> > > > > > > > -----Original
Message-----
> > > >> > > > > > > > From:
ukha_d@xxxxxxx<ukha_d%40yahoogroups.com>
> > > >> > [mailto:ukha_d@xxxxxxx
<ukha_d%40yahoogroups.com>] On
> > > >> > > > > > Behalf
> > > >> > > > > > > > Of Chris Hunter
> > > >> > > > > > > > Sent: 22 January
2008 20:59
> > > >> > > > > > > > To:
ukha_d@xxxxxxx <ukha_d%40yahoogroups.com>
> > > >> > > > > > > > Subject: Re:
[ukha_d] Updated pics of my loft
> > > conversion
> > > >> > > > > > > >
> > > >> > > > > > > > >terminating
...
> > > >> > > > > > > >
> > > >> > > > > > > > on which
subject, wondered if anyone had tried
> > > >> > > > > > > > these
> > > EZ-RJ-
> > > >> > 45s
> > > >> > > > :
> > > >> > > > > > > >
> > > >> > > > > > > > http://www.cyberselect.co.uk/product/1340
> > > >> > > > > > > >
> > > >> > > > > > > > a bit over
double the price of standard RJ-45s, but
> > > would
> > > >> > seem
> > > >> > > > to
> > > >> > > > > > > > offer better
chance of a good quality fit (for
> > > >> > > > > > > > those
> > > of us
> > > >> > who
> > > >> > > > > > don't
> > > >> > > > > > > > do it everyday,
anyway, and in terms of both
> > > >> > > > > > > > getting
> > > the
> > > >> > cables
> > > >> > > > > > > > poistioned, and
in minimising the untwist) ... ??
> > > >> > > > > > > >
> > > >> > > > > > > > Chris
> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > > > > On 22 Jan 2008,
at 05:32, Frank Mc Alinden wrote:
> > > >> > > > > > > >
> > > >> > > > > > > > > Hi Paul
> > > >> > > > > > > > >
> > > >> > > > > > > > > Great pics
...;-) Are you terminating the cat5
> > > cables
> > > >> > > > > > > > > yourself
???....If so your gonna be a busy boy
> > > >> > > > > > > > > ;-)
> > > >> > > > > > > > >
> > > >> > > > > > > > > Frank
> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > > > > [Non-text
portions of this message have been
> > removed]
> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > > > >
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> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > > > >
> > > >> > > > > >
> > > >> > > >
> > > >> >
> > >
> > __________________________________________________________
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