Load limit on a double powerpoint?

[rowan194]

I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs. I had the two UPSs off a single point with a double
adaptor but have now switched them to a point each.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office? I remember
from the build of our current house that most of the rooms are daisy
chained.

 

[Phil Allison]

"rowan194"

I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs. I had the two UPSs off a single point with a double
adaptor but have now switched them to a point each.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

** Domestic power circuits are rated at 16 or 20 amps in total - no matter
how many GPOs are hanging off it.

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?

** Each feed line requires its own circuit breaker and you can only have so
many of them on the ( normally) single phase supply entering the premises.

Good idea not the share the home office power circuit with other rooms in
the house though.



....... Phil

 

[Mr.T]

"rowan194" <googlegroups@sensation.net.au> wrote in message
news:5a65dfb8-cc22-4450-8387-de7b23da5669@j20g2000hsi.googlegroups.com...

I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs.

Even at your max. UPS load it's still within the rated 2400VA limit then.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

No, double power points are nearly always fed by a single cable, and usually
from a 15/16A circuit breaker or fuse.

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office? I remember
from the build of our current house that most of the rooms are daisy
chained.

You probably have more to worry about when you plug the electric kettle, the
microwave or toaster/toaster oven, and a few other kitchen appliances from
the same circuit simultaneously.
I know people who do that and can't be told the simple reason why the
circuit breaker keeps tripping on them.

But having more circuits from the main power board certainly doesn't hurt,
and will cost you a lot less at the house construction stage, than added
later on.

MrT.

 

[David]

Phil Allison wrote:

"rowan194"
I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs. I had the two UPSs off a single point with a double
adaptor but have now switched them to a point each.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

** Domestic power circuits are rated at 16 or 20 amps in total - no matter
how many GPOs are hanging off it.

No, socket outlets in a domestic situation are not limited to a 16A or
20A circuit. Providing the wire size is large enough, and the voltage
drop within limits, you can use 25A or 32A circuits. Not common, due to
requirement of larger cable (or shorter runs), but certainly permissible
under the wiring rules.

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?


** Each feed line requires its own circuit breaker and you can only have so
many of them on the ( normally) single phase supply entering the premises.

No limit on the number of circuit breakers. The total number of *socket
outlets* installed is used to determine the maximum demand, not the
number of circuit breakers. Cost normally dictates that the minimum
number of circuits are installed, as this is cheaper.

Good idea not the share the home office power circuit with other rooms in
the house though.

Agreed.

And get surge arrestors installed on the switch board.

David

 

[Phil Allison]

"David the PSYCHOTIC LIAR "

** Domestic power circuits are rated at 16 or 20 amps in total - no
matter how many GPOs are hanging off it.


No, socket outlets in a domestic situation are not limited to a 16A or 20A
circuit.

** Not what I wrote - you fucking moron.

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?


** Each feed line requires its own circuit breaker and you can only have
so many of them on the ( normally) single phase supply entering the
premises.


No limit on the number of circuit breakers.

** BOLLOCKS.

The total number of *socket outlets* installed is used to determine the
maximum demand,

** WRONG.



....... Phil

 

[Elmo]

David wrote:

Phil Allison wrote:
"rowan194"
I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs. I had the two UPSs off a single point with a double
adaptor but have now switched them to a point each.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

** Domestic power circuits are rated at 16 or 20 amps in total - no
matter how many GPOs are hanging off it.


No, socket outlets in a domestic situation are not limited to a 16A or
20A circuit. Providing the wire size is large enough, and the voltage
drop within limits, you can use 25A or 32A circuits. Not common, due to
requirement of larger cable (or shorter runs), but certainly permissible
under the wiring rules.


Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?


** Each feed line requires its own circuit breaker and you can only
have so many of them on the ( normally) single phase supply entering
the premises.


No limit on the number of circuit breakers. The total number of *socket
outlets* installed is used to determine the maximum demand, not the
number of circuit breakers. Cost normally dictates that the minimum
number of circuits are installed, as this is cheaper.

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like. It
goes without saying that the wiring must be able to at least handle the
current of the circuit breaker. Additionally, both power and lighting
must be split into at least two circuits each. In practice you end up
with about a dozen circuit breakers, to power circuits such as air
conditioning, hot water system, stove, power to the back shed and so on,
with nearly all of these protected by a residual current device, in fact
I think now you may have to have everything covered by an RCD, (not sure
about that off the top of my head.) In any case, make sure you leave a
few slots available for future expansion.

Good idea not the share the home office power circuit with other rooms
in the house though.


Agreed.

And get surge arrestors installed on the switch board.

David

 

[Phil Allison]

"Elmo"

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like.

** Certainly a very large number can be fitted.

It goes without saying that the wiring must be able to at least handle the
current of the circuit breaker.

** And the AC supply able to handle the total current of all such breakers.

Additionally, both power and lighting must be split into at least two
circuits each.

** Not at all - flats and units typically have only one lighting and one
power circuit.

Additional circuits may be fitted for the stove and water heater if
needed.

In practice you end up with about a dozen circuit breakers,

** Seen as few as two.



..... Phil

 

[atec77]

Elmo wrote:

David wrote:
Phil Allison wrote:
"rowan194"
I have quite a bit of computer equipment hanging off a double
powerpoint and I'm started to get a little concerned about limits.
There are 5 PCs and a few bits and pieces connected via a couple of
1000VA UPSs. I had the two UPSs off a single point with a double
adaptor but have now switched them to a point each.

Is the cabling to a *double* power point rated for at least twice the
load of a single outlet? IOW, can I (theoretically) safely draw 10A
from each of the outlets?

** Domestic power circuits are rated at 16 or 20 amps in total - no
matter how many GPOs are hanging off it.


No, socket outlets in a domestic situation are not limited to a 16A or
20A circuit. Providing the wire size is large enough, and the voltage
drop within limits, you can use 25A or 32A circuits. Not common, due
to requirement of larger cable (or shorter runs), but certainly
permissible under the wiring rules.


Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?


** Each feed line requires its own circuit breaker and you can only
have so many of them on the ( normally) single phase supply entering
the premises.


No limit on the number of circuit breakers. The total number of
*socket outlets* installed is used to determine the maximum demand,
not the number of circuit breakers. Cost normally dictates that the
minimum number of circuits are installed, as this is cheaper.
16 gpo's domestic , 12 commercial in Qld atm .

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like. It
goes without saying that the wiring must be able to at least handle the
current of the circuit breaker. Additionally, both power and lighting
must be split into at least two circuits each. In practice you end up
with about a dozen circuit breakers, to power circuits such as air
conditioning, hot water system, stove, power to the back shed and so on,
with nearly all of these protected by a residual current device, in fact
I think now you may have to have everything covered by an RCD, (not sure
about that off the top of my head.) In any case, make sure you leave a
few slots available for future expansion.

Good idea not the share the home office power circuit with other
rooms in the house though.


Agreed.

And get surge arrestors installed on the switch board.

David

 

[David]

Phil Allison wrote:

"Elmo"

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like.


** Certainly a very large number can be fitted.

Stop guessing Phil. Read the wiring rules. The wiring rules permit an
unlimited number of 10A socket outlets on circuits protected by a 20A or
greater breaker.

It goes without saying that the wiring must be able to at least handle the
current of the circuit breaker.


** And the AC supply able to handle the total current of all such breakers.

*Wrong*.

The AC supply has to be able to handle the maximum demand of the
installation. This is calculated for domestic installations based on the
load groups, which take into account the load diversity, which would be
much less than the sum of the circuit breakers, as not all loads will be
on at once. Only in the worst case is the maximum demand determined by
the sum of the circuit breakers.

Additionally, both power and lighting must be split into at least two
circuits each.


** Not at all - flats and units typically have only one lighting and one
power circuit.

The wiring rules stipulate a minimum of two circuits shall be provided
to supply 10A socket outlets for domestic installations.
(AS/NZS3018:2001, clause 6.6.3).

Additional circuits may be fitted for the stove and water heater if
needed.


In practice you end up with about a dozen circuit breakers,


** Seen as few as two.



..... Phil

 

[David]

Phil Allison wrote:

"David the PSYCHOTIC LIAR "


** Domestic power circuits are rated at 16 or 20 amps in total - no
matter how many GPOs are hanging off it.

No, socket outlets in a domestic situation are not limited to a 16A or 20A
circuit.

** Not what I wrote - you fucking moron.

Yes it is.

Along similar lines, in our next house which will be built shortly
would it be worth asking for separate feed lines to the multiple
powerpoints that will be installed into the home office?

** Each feed line requires its own circuit breaker and you can only have
so many of them on the ( normally) single phase supply entering the
premises.

No limit on the number of circuit breakers.


** BOLLOCKS.

Please provide a reference limiting the number of circuit breakers from
the wiring rules, if you think it is wrong. (This assumes that you
actually have even read the wiring rules, yet alone understand them)

The total number of *socket outlets* installed is used to determine the
maximum demand,


** WRONG.

Obviously you have never done the paper work for an electrical
installation, and submitted it to the electrical authority Phil.


David

 

[Phil Allison]

"David = ASD Fucked PSYCHOTIC LIAR "

** Domestic power circuits are rated at 16 or 20 amps in total - no
matter how many GPOs are hanging off it.

No, socket outlets in a domestic situation are not limited to a 16A or
20A circuit.

** Not what I wrote - you fucking moron.


Yes it is.

** David = ASD Fucked PSYCHOTIC LIAR




......... Phil

 

[Phil Allison]

David = ASD Fucked PSYCHOTIC LIAR

Phil Allison wrote:

"Elmo"

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like.


** Certainly a very large number can be fitted.

Stop guessing Phil. Read the wiring rules. The wiring rules permit an
unlimited number of 10A socket outlets on circuits protected by a 20A or
greater breaker.

** Irrelevant shit.

It goes without saying that the wiring must be able to at least handle
the current of the circuit breaker.


** And the AC supply able to handle the total current of all such
breakers.


*Wrong*.

The AC supply has to be able to handle the maximum demand of the
installation. This is calculated for domestic installations based on the
load groups, which take into account the load diversity, which would be
much less than the sum of the circuit breakers, as not all loads will be
on at once.

** BOLLOCKS.

Additionally, both power and lighting must be split into at least two
circuits each.


** Not at all - flats and units typically have only one lighting and
one power circuit.


The wiring rules stipulate a minimum of two circuits shall be provided to
supply 10A socket outlets for domestic installations. (AS/NZS3018:2001,
clause 6.6.3).

** Irrelevant shit.



........ Phil

 

[atec77]

Phil Allison wrote:

David = Pretty Smart Guy

Phil Allison wrote:

Nice of you to make philthy once again look like a total plonka David



how does it feel philthy having your arse handed to you?

 

On Sat, 26 Jan 2008 00:41:39 +1100, "Phil Allison" <philallison@tpg.com.au>
wrote:

"Elmo"

I think the rules have changed so that in a domestic situation, if you
have circuit breakers then you can have as many outlets as you like.


** Certainly a very large number can be fitted.

It goes without saying that the wiring must be able to at least handle the
current of the circuit breaker.


** And the AC supply able to handle the total current of all such breakers.


Additionally, both power and lighting must be split into at least two
circuits each.


** Not at all - flats and units typically have only one lighting and one
power circuit.

Additional circuits may be fitted for the stove and water heater if
needed.


In practice you end up with about a dozen circuit breakers,


** Seen as few as two.



..... Phil

Wow 2 is real small! My house had 5 fuses when I moved in... only 3 were used
for outlets and lighting... the other 2 were oil furnace and oil hot water
heater. The stove had a different cartridge fuse setup.

Here we go be the number of amps we want... typically a 100 amp or a 200 amp
panel. Since I changed to electric heat I got a 200 amp breaker panel, and it
has 24 places for breakers... I have about 18 I think... but lots are double
240v since each single is 120v,, and used for heat (3) and the dryer and stove
and AC and stuff...

My house is fairly small, some big houses around here have 2 panels, each 200
amp...

My bill averages $100 a month...

 

[TT]

"atec77" <atec77NOSPAM@hotmail.com> wrote in message
news:fne3go$c10$4@aioe.org...

Phil Allison wrote:
David = Pretty Smart Guy

Phil Allison wrote:


Nice of you to make philthy once again look like a total plonka David

What everyone must bear in mind is that Philthy here has **NO**
qualifications of any sort (inc not even a DL)and is a Uni drop out. So we
have this self proclaimed expert (in reality a "back yard" toaster
repairman) trying to argue stuff he has Googled answers for! No real world
experience and *NO* formal qualifications!

So add this to his prickly disposition and you will see why he is
*unemployable* and is a sad, twisted and bitter little old man raging on
Usenet from his bedsit.

how does it feel philthy having your arse handed to you?

It would remind him of his Marist Bros. days I would imagine ;-)

Cheers TT

 

[Alan Rutlidge]

"TT" <TTencerNoSpAm@westnet.com.au> wrote in message
news:13pnrq3f9b7c257@corp.supernews.com...

"atec77" <atec77NOSPAM@hotmail.com> wrote in message
news:fne3go$c10$4@aioe.org...
Phil Allison wrote:
David = Pretty Smart Guy

Phil Allison wrote:


Nice of you to make philthy once again look like a total plonka David

What everyone must bear in mind is that Philthy here has **NO**
qualifications of any sort (inc not even a DL)and is a Uni drop out. So
we have this self proclaimed expert (in reality a "back yard" toaster
repairman) trying to argue stuff he has Googled answers for! No real
world experience and *NO* formal qualifications!

So add this to his prickly disposition and you will see why he is
*unemployable* and is a sad, twisted and bitter little old man raging on
Usenet from his bedsit.

Yes, but he WILL go on and on about having studied electronic engineering at
uni at "honours level" or whatever. When challenged as to why he didn't
graduate
or gain any formal qualications, he will recant his tales of personal woes
(without
any detail so we never get to read the REAL reason(s) why he quit.)

how does it feel philthy having your arse handed to you?

It would remind him of his Marist Bros. days I would imagine ;-)

Gee, TT. You can be so unkind at times.

Cheers TT

In the vein of Top Gear's test driver "The Stig" -

Some call him just plain misunderstood.
Some call him the Toaster Repairman from hell.
Some say he's noted for his complete lack of tact, charm and diplomacy.
Some even say he's just a sad and lonely old man.
But to us he's simply Philthy.

Cheers,
Alan

 

[Michael A. Terrell]

TT wrote:

What everyone must bear in mind is that Philthy here has **NO**
qualifications of any sort (inc not even a DL)and is a Uni drop out. So we
have this self proclaimed expert (in reality a "back yard" toaster
repairman) trying to argue stuff he has Googled answers for! No real world
experience and *NO* formal qualifications!

So add this to his prickly disposition and you will see why he is
*unemployable* and is a sad, twisted and bitter little old man raging on
Usenet from his bedsit.

Don't forget his line of recycled sex toys and 'recetified, used
condoms'. BTW, this is one of his favorites!
<http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41078>


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[TT]

"Michael A. Terrell" <mike.terrell@earthlink.net> wrote in message
news:479C08B6.F388A751@earthlink.net...

Don't forget his line of recycled sex toys and 'recetified, used
condoms'. BTW, this is one of his favorites!
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41078


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Adds a whole new meaning to the term "hard on".

Cheers TT ROTFLMAO

 

[atec77]

Michael A. Terrell wrote:

TT wrote:
What everyone must bear in mind is that Philthy here has **NO**
qualifications of any sort (inc not even a DL)and is a Uni drop out. So we
have this self proclaimed expert (in reality a "back yard" toaster
repairman) trying to argue stuff he has Googled answers for! No real world
experience and *NO* formal qualifications!

So add this to his prickly disposition and you will see why he is
*unemployable* and is a sad, twisted and bitter little old man raging on
Usenet from his bedsit.


Don't forget his line of recycled sex toys and 'recetified, used
condoms'. BTW, this is one of his favorites!
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41078


He concretes as well ?

Wow Multi talented .

 

[TT]

"atec77" <atec77NOSPAM@hotmail.com> wrote in message
news:fnh7br$kbm$1@aioe.org...

Michael A. Terrell wrote:
TT wrote:
What everyone must bear in mind is that Philthy here has **NO**
qualifications of any sort (inc not even a DL)and is a Uni drop out. So
we
have this self proclaimed expert (in reality a "back yard" toaster
repairman) trying to argue stuff he has Googled answers for! No real
world
experience and *NO* formal qualifications!

So add this to his prickly disposition and you will see why he is
*unemployable* and is a sad, twisted and bitter little old man raging on
Usenet from his bedsit.


Don't forget his line of recycled sex toys and 'recetified, used
condoms'. BTW, this is one of his favorites!
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41078


He concretes as well ?


Wow Multi talented .

It has been suggested that Philthy would look very attractive in some
concrete footwear and given the opportunity to have a swim off Circular Quay
;-)

Cheers TT