Am installing a new Aqualisa Digital shower and it calls to be protected by a 3A fuse.

Simple enough you may say, but I am also having the same switch isolate 2No downlighters in the shower and 2 mirror demisting pads. I have installed a fused switched spur outside the bathroom which will supply all of the above via a pull cord switch in the bathroom, the idea being that I know when the mirror pads/shower supplyis on by simply seeing the lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

On Mon, 12 Jan 2009 13:05:55 +0000, Cordless Crazy
wrote:


Am installing a new Aqualisa Digital shower and it calls to be protected
by a 3A fuse.

Simple enough you may say, but I am also having the same switch isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will supply
all of the above via a pull cord switch in the bathroom, the idea being
that I know when the mirror pads/shower supplyis on by simply seeing the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

No problem at all - that lot totals less than 200W, which is under 1A.

--
Frank Erskine

"Cordless Crazy" wrote in message
...

Am installing a new Aqualisa Digital shower and it calls to be protected
by a 3A fuse.

Simple enough you may say, but I am also having the same switch isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will supply
all of the above via a pull cord switch in the bathroom, the idea being
that I know when the mirror pads/shower supplyis on by simply seeing the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

If you fit a bigger fuse you are no longer protecting it with a 3A fuse.
If a device states it *needs* a 3A fuse then that's what you should fit.

You need to know how much current the shower takes before you will know if a
3A can supply that and the others.
I would imagine it takes very little and you will be OK but you need the
figures to be sure.

In article ,
Frank Erskine writes:
On Mon, 12 Jan 2009 13:05:55 +0000, Cordless Crazy
wrote:


Am installing a new Aqualisa Digital shower and it calls to be protected
by a 3A fuse.

Simple enough you may say, but I am also having the same switch isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will supply
all of the above via a pull cord switch in the bathroom, the idea being
that I know when the mirror pads/shower supplyis on by simply seeing the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

No problem at all - that lot totals less than 200W, which is under 1A.

Mains 35W downlighters will tease a 3A fuse.
You'll probably end up replacing it every time one dies.
You might choose some better lighting for the room instead.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On Mon, 12 Jan 2009 13:05:55 +0000 someone who may be Cordless Crazy
wrote this:-

Am installing a new Aqualisa Digital shower and it calls to be protected
by a 3A fuse.

You don't say what the load of this is.

Simple enough you may say, but I am also having the same switch isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will supply
all of the above via a pull cord switch in the bathroom, the idea being
that I know when the mirror pads/shower supplyis on by simply seeing the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

If I was doing this I might well provide 3A fuses for the shower,
mirror pads and each downlighter. Then they might discriminate with
the 13A fuse I would put in the connection unit.



--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

Have checked out the spec for the shower and it states power consumption is 5 watts in the idle position and 20 watts peak during valve positioning (tis a simple electronic mixer). Does this help in establishing whether the 3A fuse is ok?

[quote=David Hansen;2092755]On Mon, 12 Jan 2009 13:05:55 +0000 someone who may be Cordless Crazy
wrote this:-

Am installing a new Aqualisa Digital shower and it calls to be protected
by a 3A fuse.

You don't say what the load of this is.

Simple enough you may say, but I am also having the same switch isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will supply
all of the above via a pull cord switch in the bathroom, the idea being
that I know when the mirror pads/shower supplyis on by simply seeing the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w

If I was doing this I might well provide 3A fuses for the shower,
mirror pads and each downlighter. Then they might discriminate with
the 13A fuse I would put in the connection unit.
QUOTE]

Sorry lost you there. Are you saying you would have a FSU for each item?

"Cordless Crazy" wrote in message
...

dennis@home;2092486 Wrote:
"Cordless Crazy" wrote in message
...-

Am installing a new Aqualisa Digital shower and it calls to be
protected
by a 3A fuse.

Simple enough you may say, but I am also having the same switch
isolate
2No downlighters in the shower and 2 mirror demisting pads. I have
installed a fused switched spur outside the bathroom which will
supply
all of the above via a pull cord switch in the bathroom, the idea
being
that I know when the mirror pads/shower supplyis on by simply seeing
the
lights on in the shower!!

My question is: does the fuse need to be bigger to cater for the
extra
load?

Requirements as follows:

2No. 35w downlighters
1No. large mirror pad 100w
1No. small mirror pad 25w-

If you fit a bigger fuse you are no longer protecting it with a 3A
fuse.
If a device states it *needs* a 3A fuse then that's what you should
fit.

You need to know how much current the shower takes before you will know
if a
3A can supply that and the others.
I would imagine it takes very little and you will be OK but you need
the
figures to be sure.

Have checked out the spec for the shower and it states power
consumption is 5 watts in the idle position and 20 watts peak during
valve positioning (tis a simple electronic mixer). Does this help in
establishing whether the 3A fuse is ok?

so it uses next to nothing then.
I think you will be fine running it all from a 3A fuse.
However as a previous poster has said sometimes the halogen lamps can take
out a 3A fuse when they blow so you may want to put in two fuses one for the
lights and one for the shower.
If the wiring has been done I would just put in a 3A and see what happens
when the bulb blows next year.