Groups > alt.folklore.computers > #154955

Re: off topic: old house wiring?

From	Morten Reistad <first@last.name.invalid>
Newsgroups	alt.folklore.computers
Subject	Re: off topic: old house wiring?
Date	2015-12-10 09:48 +0100
Organization	Me, Myself and I
Message-ID	<irqnjc-fsi.ln1@sambook.reistad.name> (permalink)
References	<4bfe5610-cbb3-4dd2-a711-f9af1720f640@googlegroups.com> <scgmjc-32e.ln1@sambook.reistad.name> <1829973952.471388425.524289.peter_flass-yahoo.com@news.eternal-september.org> <n4avhn$7gv$1@dont-email.me>

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In article <n4avhn$7gv$1@dont-email.me>,
Stephen Sprunk  <stephen@sprunk.org> wrote:
>On 09-Dec-15 15:22, Peter Flass wrote:
>> Morten Reistad <first@last.name.invalid> wrote:
>>> <hancock4@bbs.cpcn.com> wrote:
>>>> (As mentioned, our family didn't bother upgrading to 100 amp as
>>>> it was rather expensive, we could make do with our one a/c and 60
>>>> amp.  but we no longer live in that house.)
>>> 
>>> I am a little taken aback by these numbers. We have a three-phase
>>> 63A intake, which is HUGE in Europe. We do get 63 x 235 x 1.71 ~=
>>> 25 kW. by that. Enough for several rapid electric car chargers plus
>>> a lot of house.
>> 
>> 100 amps seems to have been the minimum here for many years.  I don't
>> know if newer construction supports more, though I wouldn't be
>> surprised.
>
>My house has a 200A/240V main breaker plus 60A/240V for stove/oven,
>50A/240V for A/C, 30A/240V for dryer, and a dozen or so 20A/120V and
>15A/120V for everything else, which seems typical these days.
>
>48kVA of capacity does seem like serious overkill, though; my electric
>bill runs 500kWh/mo (fall/winter/spring) to 1500kWh/mo (summer), which
>averages out to 0.7W to 2.1W of actual usage.

kW I presume.

48kVA / 240V = 200 A; i.e. single phase?

On this side of the water we use three-phase for every home with more
than ~30A connections. Newer housing deployments get 400 TN-S; i.e.
400 phase to phase and 235 phase to neutral.

This saves around 60% on the metal in the connections vs a single phase
240V connection.

And I just cannot see how a home at < 300m2 (~3ksqf) could reasonably
use more than 25 kVA. The hot water boiler takes 4, 2x stoves at max
take 12, leaving 9 for general heating and a/c. But that is me. We even
manage to have two electric car chargers at 7.2 and 3 kW beside what
the 12kW stove and heating take.

Average use is 950W in summer and nearly 3 in winter. 

-- mrr

Thread

off topic:  old house wiring? hancock4@bbs.cpcn.com - 2015-12-09 11:01 -0800
  Re: off topic:  old house wiring? Jon Elson <jmelson@wustl.edu> - 2015-12-09 14:17 -0600
    Re: off topic:  old house wiring? Dan Espen <despen@verizon.net> - 2015-12-09 16:18 -0500
      Re: off topic:  old house wiring? hancock4@bbs.cpcn.com - 2015-12-09 13:38 -0800
        Re: off topic: old house wiring? philo <philo@privacy.net> - 2015-12-09 17:38 -0600
        Re: off topic:  old house wiring? Jon Elson <jmelson@wustl.edu> - 2015-12-10 13:54 -0600
  Re: off topic:  old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-09 21:43 +0100
    Re: off topic:  old house wiring? hancock4@bbs.cpcn.com - 2015-12-09 13:19 -0800
      Re: off topic:  old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-12 10:38 -0600
        Re: off topic:  old house wiring? "gareth" <no.spam@thank.you.invalid> - 2015-12-12 16:53 +0000
        Re: off topic:  old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-12 18:06 +0100
          Re: off topic:  old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-12 11:31 -0600
          Re: off topic:  old house wiring? hancock4@bbs.cpcn.com - 2015-12-12 11:25 -0800
        Re: off topic:  old house wiring? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-12 18:41 +0000
          Re: off topic:  old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-12 17:14 -0600
            Re: off topic:  old house wiring? Bob Eager <news0005@eager.cx> - 2015-12-12 23:31 +0000
            Re: off topic:  old house wiring? Michael Black <et472@ncf.ca> - 2015-12-12 21:42 -0500
    Re: off topic: old house wiring? Peter Flass <peter_flass@yahoo.com> - 2015-12-09 16:22 -0500
      Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-09 13:42 -0800
        Re: off topic: old house wiring? Peter Flass <peter_flass@yahoo.com> - 2015-12-09 17:11 -0500
        Re: off topic: old house wiring? cmadams@cmadams.net (Chris Adams) - 2015-12-09 19:41 -0600
      Re: off topic: old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-10 01:54 +0100
        Re: off topic: old house wiring? Dave Garland <dave.garland@wizinfo.com> - 2015-12-09 22:42 -0600
          Re: off topic: old house wiring? Jon Elson <jmelson@wustl.edu> - 2015-12-14 17:28 -0600
            Re: off topic: old house wiring? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-15 08:19 +0000
              Re: off topic: old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-15 09:48 +0100
              Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-16 09:53 -0800
        Re: off topic: old house wiring? "Ranger" <r5432@gmail.com> - 2015-12-10 17:44 +1100
        Re: off topic: old house wiring? Peter Flass <peter_flass@yahoo.com> - 2015-12-10 15:23 -0500
          Re: off topic: old house wiring? scott@slp53.sl.home (Scott Lurndal) - 2015-12-10 20:49 +0000
          Re: off topic: old house wiring? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-10 23:48 +0000
            Re: off topic: old house wiring? Michael Black <et472@ncf.ca> - 2015-12-10 23:12 -0500
              Re: off topic: old house wiring? mausg@mail.com - 2015-12-11 10:12 +0000
              Re: off topic: old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-11 08:31 -0600
                Re: off topic: old house wiring? "gareth" <no.spam@thank.you.invalid> - 2015-12-11 14:47 +0000
                Re: off topic: old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-11 09:06 -0600
                Re: off topic: old house wiring? "gareth" <no.spam@thank.you.invalid> - 2015-12-11 15:49 +0000
                Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-11 09:37 -0800
            Re: off topic: old house wiring? mausg@mail.com - 2015-12-11 10:08 +0000
              Re: off topic: old house wiring? cmadams@cmadams.net (Chris Adams) - 2015-12-11 08:38 -0600
                Re: off topic: old house wiring? mausg@mail.com - 2015-12-11 16:24 +0000
              Re: off topic: old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-11 15:17 +0100
                Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-11 09:30 -0800
                Re: off topic: old house wiring? Stephen Sprunk <stephen@sprunk.org> - 2015-12-11 12:43 -0600
                Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-11 11:09 -0800
                Re: off topic: old house wiring? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-11 22:56 +0000
                Re: off topic: old house wiring? Michael Black <et472@ncf.ca> - 2015-12-11 14:47 -0500
                Re: off topic: old house wiring? "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-11 15:13 -0600
      Re: off topic: old house wiring? Stephen Sprunk <stephen@sprunk.org> - 2015-12-09 22:39 -0600
        Re: off topic: old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-09 23:12 -0600
          Re: off topic: old house wiring? Stephen Sprunk <stephen@sprunk.org> - 2015-12-10 00:59 -0600
        Re: off topic: old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-10 09:48 +0100
          Re: off topic: old house wiring? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-10 12:40 +0000
          Re: off topic: old house wiring? Stephen Sprunk <stephen@sprunk.org> - 2015-12-10 11:02 -0600
            Re: off topic: old house wiring? Jon Elson <elson@pico-systems.com> - 2015-12-11 22:01 -0600
              Re: off topic: old house wiring? Stephen Sprunk <stephen@sprunk.org> - 2015-12-12 00:48 -0600
                Re: off topic: old house wiring? Morten Reistad <first@last.name.invalid> - 2015-12-12 11:16 +0100
      Re: off topic: old house wiring? Jon Elson <jmelson@wustl.edu> - 2015-12-14 17:25 -0600
        Re: off topic: old house wiring? hancock4@bbs.cpcn.com - 2015-12-16 09:45 -0800
    Re: off topic:  old house wiring? scott@slp53.sl.home (Scott Lurndal) - 2015-12-10 14:06 +0000
    Re: off topic:  old house wiring? "capek@ieee.org <Peter Capek>" <peter.capek@gmail.com> - 2015-12-12 11:50 -0800
      Re: off topic:  old house wiring? "Osmium" <r124c4u102@comcast.net> - 2015-12-12 16:56 -0600

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