🚀 go-pugleaf

If I udnerstood you corectly you want to add a single phase recept (or a
group in the same circuit) but you don't know on which phase is best to
connect it .

If so I can tell you the way  of household el. inst. designing considering
load distribution. (At least el. engeneers common way in Serbia).

Draw a table with 3 rows (representing phases R,S,T) and with as many
columnes as the number of circuits in the old panell is(each column
represents one single or three phase circuit) . Than add one extra column
for the new circuit.

Now write the circuit loads into apropriate cels (for 3 phase circuit  every
one of 3 cels in column should contain 1/3 of  total 3 phase load).

Calculate total sums of loads for each phase and find out which one is
sutable to use.

We rate household single phase socket load 2.5 kW and 3 phase to 5.5

You should easily find out the data for other recepts.

To determine witch recepts are conected to witch phase pull out main
breakers (one at the time) and see what recepts are disconected (use probe
or wired bulbs or voltmeter to indicate voltage loss).

You may connect a new circuit even at overloaded phase (considering table)
if you now that most powerful recepts that are conected on that phase will
not be used at the same time.


Analitical method is more suitable then measuremant and it is common eng.
practice in YU.

Regards,
Zoran Matic,
contructins el. installatins eng.



DaveC <anon@me.invalid> wrote in message
news:01HW.B887E41C0045E4921AEDF5D8@news.dnai.com...
> Practically speaking, how can one tell when one is drawing too much power
> from the service panel?
>
> I've got an old Zinsco brand box from the 50's, and while I know it should
be
> upgraded, and eventually will, I'd like to know that the additional
breaker I
> am adding is going on the correct phase, the one that is currently drawing
> the least.
>
> Is simple mathematics (adding up the loads on each circuit/phase) the best
> way? Measurements?
>
> Thanks,
> Dave (in the USA)
>

   How about over-taxing news groups with persistant cross posting from Dave
C?

       Phil

On Thu, 7 Feb 2002 12:23:49 -0800, Phil Allison wrote
(in message <_fB88.1782$BE4.5768@newsfeeds.bigpond.com>):

> > How about over-taxing news groups with persistant cross posting from DaveC?

Well, Phil, I said it before and I'll say it again: Cross-posting isn't 
illegal. *Inappropriate* cross-posting should be.

All ng's posted to are appropriate to this subject. 

D.

On Thu, 7 Feb 2002 11:17:24 -0800, Zoran Matic wrote
(in message <a3uk4q$39t$1@news.eunet.yu>):

> If I udnerstood you corectly you want to add a single phase recept (or a
> group in the same circuit) but you don't know on which phase is best to
> connect it .
> 
> If so I can tell you the way  of household el. inst. designing considering
> load distribution. (At least el. engeneers common way in Serbia).
> 
> Draw a table with 3 rows (representing phases R,S,T) and with as many
> columnes as the number of circuits in the old panell is(each column
> represents one single or three phase circuit) . Than add one extra column
> for the new circuit.
> 
> Now write the circuit loads into apropriate cels (for 3 phase circuit  every
> one of 3 cels in column should contain 1/3 of  total 3 phase load).
> 
> Calculate total sums of loads for each phase and find out which one is
> sutable to use.
> 
> We rate household single phase socket load 2.5 kW and 3 phase to 5.5
> 
> You should easily find out the data for other recepts.
> 
> To determine witch recepts are conected to witch phase pull out main
> breakers (one at the time) and see what recepts are disconected (use probe
> or wired bulbs or voltmeter to indicate voltage loss).
> 
> You may connect a new circuit even at overloaded phase (considering table)
> if you now that most powerful recepts that are conected on that phase will
> not be used at the same time.
> 
> 
> Analitical method is more suitable then measuremant and it is common eng.
> practice in YU.
> 
> Regards,
> Zoran Matic,
> contructins el. installatins eng.

Thanks, Zoran. Analytical approach it is!

Dave

DaveC <anon@me.invalid> wrote in message
news:01HW.B888C604000799161B345AF8@news.dnai.com...
> Phil Allison wrote

>>> How about over-taxing news groups with persistant cross posting from DaveC?

> Well, Phil, I said it before and I'll say it again: Cross-posting
> isn't illegal. *Inappropriate* cross-posting should be.
>
> All ng's posted to are appropriate to this subject.

aus.electronics isnt really, the mains system is rather different.

"DaveC" <anon@me.invalid> wrote in message
news:01HW.B888C604000799161B345AF8@news.dnai.com...


> > > How about over-taxing news groups with persistant cross posting from
DaveC?
>
> Well, Phil, I said it before and I'll say it again: Cross-posting isn't
> illegal. *Inappropriate* cross-posting should be.
>
> All ng's posted to are appropriate to this subject.


**    Dave, you are a revolting little turd. You could easily post your
stupid trolls separately but  you are too damn lazy to do so.  Fuck you.

       Phil.

> aus.electronics isnt really, the mains system is rather different.

I'd gotten some rather bright replies to previous posts on the subject of 
power mains from this ng. If you've got another ng you'd recommend for the 
topic of power, please suggest.

> Do what I do and block anything from him using "Block Sender" in Outlook

If you wish. The simplest solution. 

"If you don't want to read it, don't."

Dave

On Fri, 8 Feb 2002 3:19:47 -0800, Milesnz wrote
(in message <6vO88.9171$Lv.1096024@news.xtra.co.nz>):

> Do what I do and block anything from him using "Block Sender" in Outlook

As I do with Phil's posts.

Dave

DaveC <anon@me.invalid> wrote in message
news:01HW.B889344A000C6C7D1B3551E8@news.dnai.com...
> Rod Speed wrote
>> DaveC <anon@me.invalid> wrote in message

>>> All ng's posted to are appropriate to this subject.

>> aus.electronics isnt really, the mains system is rather different.

> I'd gotten some rather bright replies to previous
> posts on the subject of power mains from this ng.

Yeah, fair point.

> If you've got another ng you'd recommend for the topic of power, please suggest.

Nar, its one of those areas that doesnt have a specific group that I am aware of.

To get back to your original question, in this country the capacity of the main
entrance panel is essentially determined by the cabling used to connect it to
the service mains. And thats almost entirely the number of phases and the
conductor used. But our system is quite different on the phase detail to yours.

Phil Allison <bilup@bigpond.com> wrote in message
news:I5O88.2222$BE4.7549@newsfeeds.bigpond.com...
> DaveC <anon@me.invalid> wrote

>>>> How about over-taxing news groups with persistant cross posting from DaveC?

>> Well, Phil, I said it before and I'll say it again: Cross-posting
>> isn't illegal. *Inappropriate* cross-posting should be.

>> All ng's posted to are appropriate to this subject.

> Dave, you are a revolting little turd. You could easily post your
> stupid trolls separately but you are too damn lazy to do so.  Fuck you.

Wota fucking wanker.

Only a fool demands that they be separately posted instead of crossposted.
Any decent newsreader automatically marks all copys as read when the first
copy is read with a crossposted post. Much better than having to mark each
one as read in all the groups that it appears in, stupid.

"DaveC" <anon@me.invalid> wrote in message
news:01HW.B888C6390007A5921B345AF8@news.dnai.com...
> On Thu, 7 Feb 2002 11:17:24 -0800, Zoran Matic wrote
> (in message <a3uk4q$39t$1@news.eunet.yu>):
>
> > If I udnerstood you corectly you want to add a single phase recept (or a
> > group in the same circuit) but you don't know on which phase is best to
> > connect it .
> >
> > If so I can tell you the way  of household el. inst. designing
considering
> > load distribution. (At least el. engeneers common way in Serbia).
> >
> > Draw a table with 3 rows (representing phases R,S,T) and with as many
> > columnes as the number of circuits in the old panell is(each column
> > represents one single or three phase circuit) . Than add one extra
column
> > for the new circuit.
> >
> > Now write the circuit loads into apropriate cels (for 3 phase circuit
every
> > one of 3 cels in column should contain 1/3 of  total 3 phase load).
> >
> > Calculate total sums of loads for each phase and find out which one is
> > sutable to use.
> >
> > We rate household single phase socket load 2.5 kW and 3 phase to 5.5
> >
> > You should easily find out the data for other recepts.
> >
> > To determine witch recepts are conected to witch phase pull out main
> > breakers (one at the time) and see what recepts are disconected (use
probe
> > or wired bulbs or voltmeter to indicate voltage loss).
> >
> > You may connect a new circuit even at overloaded phase (considering
table)
> > if you now that most powerful recepts that are conected on that phase
will
> > not be used at the same time.
> >
> >
> > Analitical method is more suitable then measuremant and it is common
eng.
> > practice in YU.
> >
> > Regards,
> > Zoran Matic,
> > contructins el. installatins eng.
>
> Thanks, Zoran. Analytical approach it is!
>
> Dave

There is nothing to analyze. Pu it a 20 amp breaker with 12 gauge out
of it and it will handle it. Get a grip.

--
Herb Stein
The Herb Stein Group
www.herbstein.com
herb@herbstein.com
314 952-4601