im closing an office and moving it home ! UK 240volts
The room i am moving into has two single sockets
but i need to plug in
4 computers & lcd screens
Thats goona be seriously too many extensions yes ?
also the wiring aint new ,possibly 30+ years old
i will take any advice from any electrician i bring
out but i would like to be forwarned with any info
It would be crazy also to install any new sockets into wall as
i might wellwant to sell up in future ........
so i would imagine ineed a new "spur" coming direct from mains
fusebox with its own fuse .. correct me if i am wrong ?
also how ami going to make all these sockets "temporary"
without ruining the walls of the house
any thoughts appreciated
1) Other than the heater (and the printers, if they are lasers) - the
rest probably don't add up to much more than 1kW and can be powered off
a single 10 or 12 way extension lead plugged into just one of the wall
sockets you have.
2) If you can't read the labels and add up the power that each one says
it uses, buy a (cheap) mains power meter (eg maplins) and plug in the
extension lead via that. Just keep the total power well within the
rating of the extension lead, as you plug in extra things. Again, beware
of lasers as they take a lot more power when printing than they do when
sat waiting, once "warmed up".
3) But none of this really matters if the house wiring is unsafe. IMBW
but I don't think any electrician would take on a job of simply
installing one, safe, new circuit where the rest of the system obviously
was unsafe. At the very least he would want to leave all the unsafe
4) The heater is the problem - if it is 1kW or more, I wouldn't plug it
into the same extension as the others but plug it into its own wall
socket, via its own (suitably rated) extension lead, if necessary.
5) Should a rewire be necessary, a good electrician will generally find
ways of producing a neat job. They often manage to find voids and spaces
that the house owner never knew existed..
I think your estimates may be a little conservative, my Epsom inkjet is
rated at .3A (80W),also most modern PC's have at least a 350w PSU and some
dual core's run a 500w,LCD monitors vary from 45-95w on average and don't
forget the extra's we all have like Routers or speakers even out of date
Also the office normally has other electrical devices ranging from the
humble radio to a fancy pencil sharpener.
As the wiring is suspect a dedicated supply is best (it is going to be an
office after all) this will afford security of supply and facility for spike
This could be done using 'DADO' trunking causing little damage to the room
and also being 3 compartment carry the network cabling and BT lines as it
does in industry.
Trouble is it can be expensive but how much to rewire the room.
As a pointer my office has 3 pc's 1 acting as server ,2 printers ,scanner
Hub and router,3 powered speaker units ,desk lamp and land line phone.
When all in normal use power can peak at around 2.2kw .
Still under the load for a single spur I know but it soon goes up if the fan
is turned on or the laptops are plugged in to charge.
... but "rated at 0.3A" doesn't mean that it actually consumes 0.3A,
it just means that it needs a circuit rated at a minimum of 0.3A and
that it may consume up to that amount at times.
Similarly for the PC, it *might* consume 350W if all the disk slots
are full, it has a top end graphics card, two CD/DVD drives, etc. Even
then it would only consume 350W if all those things happened to be
used at the same time and the processor was working hard too.
Thnks for the sensible replies , you seem like a good bunch here
notlike the trolling sods over at uk.telecom.voip .
I ppeciate the advise an i think due to the wiring being old and
my posible PEAK usag being highiwill fdefinte have a fused
spur installed for safety , an maybe run quality extensions off
the spur termination .
thnaks again for your useful thoughts
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