Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.electronics.design > #451353 > unrolled thread

Very slightly OT: Circuit breaker compatibility

Started byJoerg <news@analogconsultants.com>
First post2017-03-11 11:53 -0800
Last post2017-03-11 20:14 -0600
Articles 20 on this page of 94 — 14 participants

Back to article view | Back to sci.electronics.design


Contents

  Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 11:53 -0800
    Re: Very slightly OT: Circuit breaker compatibility Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-03-11 13:03 -0700
      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 12:31 -0800
        Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-11 18:36 -0800
          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-12 07:10 -0700
    Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-11 13:09 -0700
      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 12:34 -0800
        Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-11 14:13 -0700
          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 16:00 -0800
            Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-11 17:22 -0700
              Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-11 21:40 -0500
              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-12 07:07 -0700
                Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-12 07:59 -0700
                  Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-12 08:16 -0700
                    Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-12 12:16 -0700
                      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-13 11:19 -0700
                        Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-15 12:52 -0700
                          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-16 08:01 -0700
                            Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-16 10:19 -0700
                              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-16 10:37 -0700
                                Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-16 16:12 -0700
                                  Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-16 16:33 -0700
                                    Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-16 20:15 -0700
                    Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-12 20:43 -0400
                      Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-13 02:05 -0700
                        Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-13 21:33 -0400
                          Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-14 06:38 -0700
                            Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 12:47 -0400
                              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-14 12:00 -0700
                                Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 20:44 -0400
                                  Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-15 05:53 -0700
                                    Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-15 12:53 -0400
                                    Re: Very slightly OT: Circuit breaker compatibility kevin93 <kevin@whitedigs.com> - 2017-03-15 15:11 -0700
                                      Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-15 16:34 -0700
                                      Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-15 20:38 -0400
                                        Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-16 08:03 -0700
                                          Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-16 20:36 -0400
                                            Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-17 16:54 -0700
                                              Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-17 22:35 -0400
                                                Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-18 07:42 -0700
                                                  Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 10:47 -0400
                        Re: Very slightly OT: Circuit breaker compatibility Jasen Betts <jasen@xnet.co.nz> - 2017-03-14 05:12 +0000
                          Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 12:48 -0400
                      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-13 11:20 -0700
                  Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-12 20:39 -0400
                  Re: Very slightly OT: Circuit breaker compatibility whit3rd <whit3rd@gmail.com> - 2017-03-13 16:53 -0700
                    Re: Very slightly OT: Circuit breaker compatibility Don Y <blockedofcourse@foo.invalid> - 2017-03-13 17:13 -0700
                      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-14 08:06 -0700
                Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-12 20:36 -0400
                  Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-13 11:54 -0700
        Re: Very slightly OT: Circuit breaker compatibility Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-11 13:27 -0800
          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 16:02 -0800
            Re: Very slightly OT: Circuit breaker compatibility Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-11 16:33 -0800
              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-12 07:14 -0700
                Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-12 11:38 -0700
                  Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-13 15:49 -0700
                    Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-14 06:40 -0700
                      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-14 07:59 -0700
                        Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 12:51 -0400
                          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-14 11:57 -0700
                            Re: Very slightly OT: Circuit breaker compatibility Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-14 14:01 -0700
                              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-14 14:21 -0700
                                Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-14 16:59 -0700
                                  Re: Very slightly OT: Circuit breaker compatibility Chris Jones <lugnut808@spam.yahoo.com> - 2017-03-16 00:50 +1100
                                    Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-15 07:26 -0700
                                      Re: Very slightly OT: Circuit breaker compatibility Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-15 11:17 -0700
                                        Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-15 16:31 -0700
                                          Re: Very slightly OT: Circuit breaker compatibility Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-15 16:59 -0700
                                            Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-15 19:06 -0700
                                              Re: Very slightly OT: Circuit breaker compatibility Chris Jones <lugnut808@spam.yahoo.com> - 2017-03-16 23:26 +1100
                                                Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-16 10:12 -0700
                              Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 20:47 -0400
                            Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-14 20:47 -0400
                              Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-16 08:06 -0700
                          Re: Very slightly OT: Circuit breaker compatibility "Michael A. Terrell" <mike.terrell@earthlink.net> - 2017-03-17 16:29 -0400
                            Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-17 22:39 -0400
                              Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-18 01:52 -0700
                                Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 09:45 -0400
                                  Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-18 07:37 -0700
                                    Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 10:48 -0400
                                      Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-18 09:18 -0700
                                        Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 14:13 -0400
                                          Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-18 13:20 -0700
                                            Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 20:00 -0400
                                              Re: Very slightly OT: Circuit breaker compatibility tabbypurr@gmail.com - 2017-03-18 18:40 -0700
                                                Re: Very slightly OT: Circuit breaker compatibility krw@notreal.com - 2017-03-18 22:17 -0400
                              Re: Very slightly OT: Circuit breaker compatibility "Michael A. Terrell" <mike.terrell@earthlink.net> - 2017-03-19 12:14 -0400
      ) Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-03-12 01:12 -0500
        Re: ) tabbypurr@gmail.com - 2017-03-12 03:51 -0700
    Re: Very slightly OT: Circuit breaker compatibility Tim Wescott <tim@seemywebsite.really> - 2017-03-11 14:27 -0600
      Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-11 12:38 -0800
        Re: Very slightly OT: Circuit breaker compatibility Chris Jones <lugnut808@spam.yahoo.com> - 2017-03-12 23:57 +1100
          Re: Very slightly OT: Circuit breaker compatibility Joerg <news@analogconsultants.com> - 2017-03-12 07:17 -0700
    Re: Very slightly OT: Circuit breaker compatibility Jon Elson <elson@pico-systems.com> - 2017-03-11 20:14 -0600

Page 2 of 5 — ← Prev page 1 [2] 3 4 5  Next page →


#452186

Fromtabbypurr@gmail.com
Date2017-03-16 16:12 -0700
Message-ID<74c59ab3-d8a1-4890-8f15-940a37970efd@googlegroups.com>
In reply to#452148
On Thursday, 16 March 2017 17:37:07 UTC, Joerg  wrote:
> On 2017-03-16 10:19, tabbypurr wrote:
> > On Thursday, 16 March 2017 15:01:04 UTC, Joerg  wrote:
> >> On 2017-03-15 12:52, Don Y wrote:
> >>> On 3/13/2017 11:19 AM, Joerg wrote:
> >>>> On 2017-03-12 12:16, Don Y wrote:
> >>>>> On 3/12/2017 8:16 AM, Joerg wrote:

> > Almost all houses here have breakers feed several rooms. I've not
> > found it to be a problem.
> 
> Until someone turns a bedroom into an office.

a complete non-problem. Unless you expect in there a 10kW kiln for the heads of nonpaying customers?


> >>> It's only recent construction that has opted to put more branch
> >>> circuits in place in rooms other than the kitchen.
> >
> > radial circuits however are a safety issue.
> >
> 
> Why?

rings are safer primarily because they keep working fine with a high resistance connection, radials burn out or catch fire.


> I lived on the upper floor of a free-standing house near Aberdeen for a 
> short while. That house had solid granite blocks as outer walls and was 
> the sturdies place I ever lived in. The neighboring homes were built 
> that way as well. IIRC each outlet had its own little fuse of 13A or so 
> locally.

very unusual


> >> laser printing was no problem. Here all we get is 1800W on most and
> >> 2400W on the few 20A circuits. Which really puts a crimp into my
> >> home brewing activities.

Do you brew on a grand scale?

> > A tyipcal socket circuit here has a 32A breaker providing 7.68kW
> > continuous, and much more short term. It's common to run 45 or 50A
> > short term as multiple appliances heat simultaneously.
> >
> 
> 32A is even better though in the UK each regular socket is limited to 
> 13A while in Germany that is 16A:


NT

[toc] | [prev] | [next] | [standalone]


#452191

FromJoerg <news@analogconsultants.com>
Date2017-03-16 16:33 -0700
Message-ID<ej0llkFmelmU1@mid.individual.net>
In reply to#452186
On 2017-03-16 16:12, tabbypurr@gmail.com wrote:
> On Thursday, 16 March 2017 17:37:07 UTC, Joerg  wrote:
>> On 2017-03-16 10:19, tabbypurr wrote:
>>> On Thursday, 16 March 2017 15:01:04 UTC, Joerg  wrote:
>>>> On 2017-03-15 12:52, Don Y wrote:
>>>>> On 3/13/2017 11:19 AM, Joerg wrote:
>>>>>> On 2017-03-12 12:16, Don Y wrote:
>>>>>>> On 3/12/2017 8:16 AM, Joerg wrote:
>
>>> Almost all houses here have breakers feed several rooms. I've
>>> not found it to be a problem.
>>
>> Until someone turns a bedroom into an office.
>
> a complete non-problem. Unless you expect in there a 10kW kiln for
> the heads of nonpaying customers?
>

I mean a serious office. Worst case with another one next door on the 
same circuit if your spouse also works from home. Or a lab if you are a 
self-employed engineer. Copier, printer, coffee maker, a li'l space 
heater for nippy winter days, and so on. 120V/15A is totally inadequate 
for two of those.

Heck, I can't even brew beer on one of those wimpy circuits and have to 
run an extension cord to another. Then it still takes two hours to get 
six gallons to a boil. One just one circuit this would become an all-day 
affair.


>
>>>>> It's only recent construction that has opted to put more
>>>>> branch circuits in place in rooms other than the kitchen.
>>>
>>> radial circuits however are a safety issue.
>>>
>>
>> Why?
>
> rings are safer primarily because they keep working fine with a high
> resistance connection, radials burn out or catch fire.
>

Not really. In a ring you can have redundancy but this means an error 
would go undetected until the next one happens, and then ... bzzzt .. PHUT.

Also, a ring is not all that practical in an American home that is 
almost the size of Balmoral Castle.

>
>> I lived on the upper floor of a free-standing house near Aberdeen
>> for a short while. That house had solid granite blocks as outer
>> walls and was the sturdies place I ever lived in. The neighboring
>> homes were built that way as well. IIRC each outlet had its own
>> little fuse of 13A or so locally.
>
> very unusual
>

Not in Scotland. I asked the owners that and they said no. Just that the 
granite is a wee bit radioactive but due to McEwan's Heavy, Single Malt 
and high-energy sports such as the telephone pole toss the Scots have a 
long life anyways.

>
>>>> laser printing was no problem. Here all we get is 1800W on most
>>>> and 2400W on the few 20A circuits. Which really puts a crimp
>>>> into my home brewing activities.
>
> Do you brew on a grand scale?
>

Each batch is about 5 gallons or 18 liters. This means you have to heat 
6-6.5 gallons. I usually run two brew sessions per day. Due to the wimpy 
electric circuit power in US houses I have to make sure the morning brew 
is one without much in specialty grains so I am done by lunchtime. I 
have to turn on the two burners the instant I get out of bed at 6:30am.


>>> A tyipcal socket circuit here has a 32A breaker providing 7.68kW
>>> continuous, and much more short term. It's common to run 45 or
>>> 50A short term as multiple appliances heat simultaneously.
>>>
>>
>> 32A is even better though in the UK each regular socket is limited
>> to 13A while in Germany that is 16A:
>

-- 
Regards, Joerg

http://www.analogconsultants.com/

[toc] | [prev] | [next] | [standalone]


#452224

Fromtabbypurr@gmail.com
Date2017-03-16 20:15 -0700
Message-ID<c2b38a63-cf52-44fd-a092-bcd10d116ede@googlegroups.com>
In reply to#452191
On Thursday, 16 March 2017 23:33:14 UTC, Joerg  wrote:
> On 2017-03-16 16:12, tabbypurr wrote:
> > On Thursday, 16 March 2017 17:37:07 UTC, Joerg  wrote:
> >> On 2017-03-16 10:19, tabbypurr wrote:
> >>> On Thursday, 16 March 2017 15:01:04 UTC, Joerg  wrote:
> >>>> On 2017-03-15 12:52, Don Y wrote:
> >>>>> On 3/13/2017 11:19 AM, Joerg wrote:
> >>>>>> On 2017-03-12 12:16, Don Y wrote:
> >>>>>>> On 3/12/2017 8:16 AM, Joerg wrote:
> >
> >>> Almost all houses here have breakers feed several rooms. I've
> >>> not found it to be a problem.
> >>
> >> Until someone turns a bedroom into an office.
> >
> > a complete non-problem. Unless you expect in there a 10kW kiln for
> > the heads of nonpaying customers?
> >
> 
> I mean a serious office. Worst case with another one next door on the 
> same circuit if your spouse also works from home. Or a lab if you are a 
> self-employed engineer. Copier, printer, coffee maker, a li'l space 
> heater for nippy winter days, and so on. 120V/15A is totally inadequate 
> for two of those.

32A 240v handles those with ease. 120v 15A could do it if you used 2 or 3 way switches on the heavy loads so the space heater cuts out during brewing etc. Not ideal but usable. A plug-in space heater indicates a need to rethink the heating.

> Heck, I can't even brew beer on one of those wimpy circuits and have to 
> run an extension cord to another. Then it still takes two hours to get 
> six gallons to a boil. One just one circuit this would become an all-day 
> affair.
> 
> 
> >
> >>>>> It's only recent construction that has opted to put more
> >>>>> branch circuits in place in rooms other than the kitchen.
> >>>
> >>> radial circuits however are a safety issue.
> >>>
> >>
> >> Why?
> >
> > rings are safer primarily because they keep working fine with a high
> > resistance connection, radials burn out or catch fire.
> >
> 
> Not really. In a ring you can have redundancy but this means an error 
> would go undetected until the next one happens, and then ... bzzzt .. PHUT.

Ring circuit: 1 fault no problem, 2nd fault on same conductor = hazard.
Radial circuit: every fault = hazard
Not surprisingly nearly 100% of joint faults are not accompanied by a 2nd on the same conductor.


> Also, a ring is not all that practical in an American home that is 
> almost the size of Balmoral Castle.

It uses less copper. I won't bore you with why we use them and no-one else does, but briefly they use less copper and are safer.


NT

[toc] | [prev] | [next] | [standalone]


#451554

Fromkrw@notreal.com
Date2017-03-12 20:43 -0400
Message-ID<akqbccd9lkgk6oaas4161u97so6re28fl9@4ax.com>
In reply to#451484
On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
wrote:


>That all becomes a pain when, like happened to me, you have a 
>thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in 
>this building? Where could the breaker panel be? Basement? Which room in 
>the basement? Or is there a subpanel on another floor? Maybe on this floor?

Kitchens must have at least two small appliance circuits.

>> If you enjoy the convenience of having the ability to reset a blown breaker
>> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>> bedroom has the GFCI for *this* bedroom's outlets?")

Why would you have a GFCI for a bedroom?

[toc] | [prev] | [next] | [standalone]


#451594

Fromtabbypurr@gmail.com
Date2017-03-13 02:05 -0700
Message-ID<5c10718a-5473-4de3-9f75-05703bd4970c@googlegroups.com>
In reply to#451554
On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
> wrote:
> 
> 
> >That all becomes a pain when, like happened to me, you have a 
> >thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in 
> >this building? Where could the breaker panel be? Basement? Which room in 
> >the basement? Or is there a subpanel on another floor? Maybe on this floor?
> 
> Kitchens must have at least two small appliance circuits.
> 
> >> If you enjoy the convenience of having the ability to reset a blown breaker
> >> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
> >> bedroom has the GFCI for *this* bedroom's outlets?")
> 
> Why would you have a GFCI for a bedroom?

Electric blankets kill more people than all other domestic appliances.


NT

[toc] | [prev] | [next] | [standalone]


#451718

Fromkrw@notreal.com
Date2017-03-13 21:33 -0400
Message-ID<63iecctm9fg9s4e87klaim1pv0km5g4psg@4ax.com>
In reply to#451594
On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr@gmail.com wrote:

>On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
>> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
>> wrote:
>> 
>> 
>> >That all becomes a pain when, like happened to me, you have a 
>> >thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in 
>> >this building? Where could the breaker panel be? Basement? Which room in 
>> >the basement? Or is there a subpanel on another floor? Maybe on this floor?
>> 
>> Kitchens must have at least two small appliance circuits.
>> 
>> >> If you enjoy the convenience of having the ability to reset a blown breaker
>> >> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>> >> bedroom has the GFCI for *this* bedroom's outlets?")
>> 
>> Why would you have a GFCI for a bedroom?
>
>Electric blankets kill more people than all other domestic appliances.

A L-N short will not trip a GFCI.

[toc] | [prev] | [next] | [standalone]


#451769

Fromtabbypurr@gmail.com
Date2017-03-14 06:38 -0700
Message-ID<3692619c-3c8b-4fbd-b019-cd5365f4f3ea@googlegroups.com>
In reply to#451718
On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
> >On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
> >> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
> >> wrote:
> >> 
> >> 
> >> >That all becomes a pain when, like happened to me, you have a 
> >> >thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in 
> >> >this building? Where could the breaker panel be? Basement? Which room in 
> >> >the basement? Or is there a subpanel on another floor? Maybe on this floor?
> >> 
> >> Kitchens must have at least two small appliance circuits.
> >> 
> >> >> If you enjoy the convenience of having the ability to reset a blown breaker
> >> >> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
> >> >> bedroom has the GFCI for *this* bedroom's outlets?")
> >> 
> >> Why would you have a GFCI for a bedroom?
> >
> >Electric blankets kill more people than all other domestic appliances.
> 
> A L-N short will not trip a GFCI.

L-E conduction does. So GFCI protected feeds are safer, hence we use them.


NT

[toc] | [prev] | [next] | [standalone]


#451784

Fromkrw@notreal.com
Date2017-03-14 12:47 -0400
Message-ID<ok7gccd1nn6adirv8h9q2c9vfqte41qtiq@4ax.com>
In reply to#451769
On Tue, 14 Mar 2017 06:38:47 -0700 (PDT), tabbypurr@gmail.com wrote:

>On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
>> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
>> >On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
>> >> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
>> >> wrote:
>> >> 
>> >> 
>> >> >That all becomes a pain when, like happened to me, you have a 
>> >> >thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in 
>> >> >this building? Where could the breaker panel be? Basement? Which room in 
>> >> >the basement? Or is there a subpanel on another floor? Maybe on this floor?
>> >> 
>> >> Kitchens must have at least two small appliance circuits.
>> >> 
>> >> >> If you enjoy the convenience of having the ability to reset a blown breaker
>> >> >> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>> >> >> bedroom has the GFCI for *this* bedroom's outlets?")
>> >> 
>> >> Why would you have a GFCI for a bedroom?
>> >
>> >Electric blankets kill more people than all other domestic appliances.
>> 
>> A L-N short will not trip a GFCI.
>
>L-E conduction does. So GFCI protected feeds are safer, hence we use them.

Where do you get E in a bed?

[toc] | [prev] | [next] | [standalone]


#451801

FromJoerg <news@analogconsultants.com>
Date2017-03-14 12:00 -0700
Message-ID<eiqsugFhj63U1@mid.individual.net>
In reply to#451784
On 2017-03-14 09:47, krw@notreal.com wrote:
> On Tue, 14 Mar 2017 06:38:47 -0700 (PDT), tabbypurr@gmail.com wrote:
>
>> On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
>>> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
>>>> On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
>>>>> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
>>>>> wrote:
>>>>>
>>>>>
>>>>>> That all becomes a pain when, like happened to me, you have a
>>>>>> thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in
>>>>>> this building? Where could the breaker panel be? Basement? Which room in
>>>>>> the basement? Or is there a subpanel on another floor? Maybe on this floor?
>>>>>
>>>>> Kitchens must have at least two small appliance circuits.
>>>>>
>>>>>>> If you enjoy the convenience of having the ability to reset a blown breaker
>>>>>>> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>>>>>>> bedroom has the GFCI for *this* bedroom's outlets?")
>>>>>
>>>>> Why would you have a GFCI for a bedroom?
>>>>
>>>> Electric blankets kill more people than all other domestic appliances.
>>>
>>> A L-N short will not trip a GFCI.
>>
>> L-E conduction does. So GFCI protected feeds are safer, hence we use them.
>
> Where do you get E in a bed?
>

Metal bed frame, metal (grounded) night stand lamp, wetted bed sheets, 
et cetera. Think older person. There is a lot of stuff that happens at 
high age that most of us can't imagine unless we have exposure to that 
field, for example via volunteering. Or until we get there outselves.

-- 
Regards, Joerg

http://www.analogconsultants.com/

[toc] | [prev] | [next] | [standalone]


#451865

Fromkrw@notreal.com
Date2017-03-14 20:44 -0400
Message-ID<9i3hccla3gqonkkokusq4gu1p5ijsfhi2f@4ax.com>
In reply to#451801
On Tue, 14 Mar 2017 12:00:38 -0700, Joerg <news@analogconsultants.com>
wrote:

>On 2017-03-14 09:47, krw@notreal.com wrote:
>> On Tue, 14 Mar 2017 06:38:47 -0700 (PDT), tabbypurr@gmail.com wrote:
>>
>>> On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
>>>> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
>>>>> On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
>>>>>> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
>>>>>> wrote:
>>>>>>
>>>>>>
>>>>>>> That all becomes a pain when, like happened to me, you have a
>>>>>>> thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in
>>>>>>> this building? Where could the breaker panel be? Basement? Which room in
>>>>>>> the basement? Or is there a subpanel on another floor? Maybe on this floor?
>>>>>>
>>>>>> Kitchens must have at least two small appliance circuits.
>>>>>>
>>>>>>>> If you enjoy the convenience of having the ability to reset a blown breaker
>>>>>>>> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>>>>>>>> bedroom has the GFCI for *this* bedroom's outlets?")
>>>>>>
>>>>>> Why would you have a GFCI for a bedroom?
>>>>>
>>>>> Electric blankets kill more people than all other domestic appliances.
>>>>
>>>> A L-N short will not trip a GFCI.
>>>
>>> L-E conduction does. So GFCI protected feeds are safer, hence we use them.
>>
>> Where do you get E in a bed?
>>
>
>Metal bed frame, metal (grounded) night stand lamp, wetted bed sheets, 
>et cetera. Think older person. There is a lot of stuff that happens at 
>high age that most of us can't imagine unless we have exposure to that 
>field, for example via volunteering. Or until we get there outselves.

Oh, good fucking grief!  How any failures do you have in series there?

[toc] | [prev] | [next] | [standalone]


#451935

Fromtabbypurr@gmail.com
Date2017-03-15 05:53 -0700
Message-ID<b316fe3e-13fa-4415-be5e-5643addab951@googlegroups.com>
In reply to#451865
On Wednesday, 15 March 2017 00:45:09 UTC, k...@notreal.com  wrote:
> On Tue, 14 Mar 2017 12:00:38 -0700, Joerg <news@analogconsultants.com>
> wrote:
> >On 2017-03-14 09:47, krw@notreal.com wrote:
> >> On Tue, 14 Mar 2017 06:38:47 -0700 (PDT), tabbypurr wrote:
> >>> On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
> >>>> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
> >>>>> On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
> >>>>>> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
> >>>>>> wrote:
> >>>>>>
> >>>>>>
> >>>>>>> That all becomes a pain when, like happened to me, you have a
> >>>>>>> thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in
> >>>>>>> this building? Where could the breaker panel be? Basement? Which room in
> >>>>>>> the basement? Or is there a subpanel on another floor? Maybe on this floor?
> >>>>>>
> >>>>>> Kitchens must have at least two small appliance circuits.
> >>>>>>
> >>>>>>>> If you enjoy the convenience of having the ability to reset a blown breaker
> >>>>>>>> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
> >>>>>>>> bedroom has the GFCI for *this* bedroom's outlets?")
> >>>>>>
> >>>>>> Why would you have a GFCI for a bedroom?
> >>>>>
> >>>>> Electric blankets kill more people than all other domestic appliances.
> >>>>
> >>>> A L-N short will not trip a GFCI.
> >>>
> >>> L-E conduction does. So GFCI protected feeds are safer, hence we use them.
> >>
> >> Where do you get E in a bed?
> >>
> >
> >Metal bed frame, metal (grounded) night stand lamp, wetted bed sheets, 
> >et cetera. Think older person. There is a lot of stuff that happens at 
> >high age that most of us can't imagine unless we have exposure to that 
> >field, for example via volunteering. Or until we get there outselves.
> 
> Oh, good fucking grief!  How any failures do you have in series there?

Again electric blankets kill more people than all other household appliances put together.


NT

[toc] | [prev] | [next] | [standalone]


#451967

Fromkrw@notreal.com
Date2017-03-15 12:53 -0400
Message-ID<c4sicchrokhua5t39g9f5v6vb4u9rat8jr@4ax.com>
In reply to#451935
On Wed, 15 Mar 2017 05:53:27 -0700 (PDT), tabbypurr@gmail.com wrote:

>On Wednesday, 15 March 2017 00:45:09 UTC, k...@notreal.com  wrote:
>> On Tue, 14 Mar 2017 12:00:38 -0700, Joerg <news@analogconsultants.com>
>> wrote:
>> >On 2017-03-14 09:47, krw@notreal.com wrote:
>> >> On Tue, 14 Mar 2017 06:38:47 -0700 (PDT), tabbypurr wrote:
>> >>> On Tuesday, 14 March 2017 01:34:43 UTC, k...@notreal.com  wrote:
>> >>>> On Mon, 13 Mar 2017 02:05:48 -0700 (PDT), tabbypurr wrote:
>> >>>>> On Monday, 13 March 2017 00:44:05 UTC, k...@notreal.com  wrote:
>> >>>>>> On Sun, 12 Mar 2017 08:16:55 -0700, Joerg <news@analogconsultants.com>
>> >>>>>> wrote:
>> >>>>>>
>> >>>>>>
>> >>>>>>> That all becomes a pain when, like happened to me, you have a
>> >>>>>>> thunderstorm and ... THWOCK ... lights out. Now where is a flashlight in
>> >>>>>>> this building? Where could the breaker panel be? Basement? Which room in
>> >>>>>>> the basement? Or is there a subpanel on another floor? Maybe on this floor?
>> >>>>>>
>> >>>>>> Kitchens must have at least two small appliance circuits.
>> >>>>>>
>> >>>>>>>> If you enjoy the convenience of having the ability to reset a blown breaker
>> >>>>>>>> AT the receptacle, why not put a GFCI on EACH branch circuit?  ("Gee, which
>> >>>>>>>> bedroom has the GFCI for *this* bedroom's outlets?")
>> >>>>>>
>> >>>>>> Why would you have a GFCI for a bedroom?
>> >>>>>
>> >>>>> Electric blankets kill more people than all other domestic appliances.
>> >>>>
>> >>>> A L-N short will not trip a GFCI.
>> >>>
>> >>> L-E conduction does. So GFCI protected feeds are safer, hence we use them.
>> >>
>> >> Where do you get E in a bed?
>> >>
>> >
>> >Metal bed frame, metal (grounded) night stand lamp, wetted bed sheets, 
>> >et cetera. Think older person. There is a lot of stuff that happens at 
>> >high age that most of us can't imagine unless we have exposure to that 
>> >field, for example via volunteering. Or until we get there outselves.
>> 
>> Oh, good fucking grief!  How any failures do you have in series there?
>
>Again electric blankets kill more people than all other household appliances put together.

That may be but it's NOT because of electricution and a GFCI won't
help.

[toc] | [prev] | [next] | [standalone]


#452011

Fromkevin93 <kevin@whitedigs.com>
Date2017-03-15 15:11 -0700
Message-ID<d778e39e-19e0-4aed-9900-c1543a6108da@googlegroups.com>
In reply to#451935
On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
...
> Again electric blankets kill more people than all other household appliances put together.
> 
> 
> NT

Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).

kevin

[toc] | [prev] | [next] | [standalone]


#452026

Fromtabbypurr@gmail.com
Date2017-03-15 16:34 -0700
Message-ID<16340204-314e-4deb-951b-d379e311f992@googlegroups.com>
In reply to#452011
On Wednesday, 15 March 2017 22:11:11 UTC, kevin93  wrote:
> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabby wrote:
> ...
> > Again electric blankets kill more people than all other household appliances put together.

> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
> 
> kevin

We're accustomed to it, but the idea of putting a very thin flimsy heating wire in a flammable blanket that gets flexed loads does seem like asking for trouble. And it turns out it is.


NT

[toc] | [prev] | [next] | [standalone]


#452038

Fromkrw@notreal.com
Date2017-03-15 20:38 -0400
Message-ID<7gnjcc1kak2ut2aj4htc9kg7khe4vnq2ab@4ax.com>
In reply to#452011
On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
<kevin@whitedigs.com> wrote:

>On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>...
>> Again electric blankets kill more people than all other household appliances put together.
>> 
>> 
>> NT
>
>Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).

Exactly.  Arc-fault interruptors address this problem.  Ground Fault
interrupters don't to squat.

[toc] | [prev] | [next] | [standalone]


#452112

FromJoerg <news@analogconsultants.com>
Date2017-03-16 08:03 -0700
Message-ID<eivnqjFgafjU2@mid.individual.net>
In reply to#452038
On 2017-03-15 17:38, krw@notreal.com wrote:
> On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
> <kevin@whitedigs.com> wrote:
>
>> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>> ...
>>> Again electric blankets kill more people than all other household appliances put together.
>>>
>>>
>>> NT
>>
>> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
>
> Exactly.  Arc-fault interruptors address this problem.  Ground Fault
> interrupters don't to squat.
>

You have never been in the home of a frail elderly person who gets by on 
a measly social security check and with whatever they've already got? 
Including that heating blanket from the 70's that's already totally 
frayed but "it still works"?

-- 
Regards, Joerg

http://www.analogconsultants.com/

[toc] | [prev] | [next] | [standalone]


#452206

Fromkrw@notreal.com
Date2017-03-16 20:36 -0400
Message-ID<robmcc5vtseoeh91sp9almdfdbub5e30lt@4ax.com>
In reply to#452112
On Thu, 16 Mar 2017 08:03:58 -0700, Joerg <news@analogconsultants.com>
wrote:

>On 2017-03-15 17:38, krw@notreal.com wrote:
>> On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
>> <kevin@whitedigs.com> wrote:
>>
>>> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>>> ...
>>>> Again electric blankets kill more people than all other household appliances put together.
>>>>
>>>>
>>>> NT
>>>
>>> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
>>
>> Exactly.  Arc-fault interruptors address this problem.  Ground Fault
>> interrupters don't to squat.
>>
>
>You have never been in the home of a frail elderly person who gets by on 
>a measly social security check and with whatever they've already got? 
>Including that heating blanket from the 70's that's already totally 
>frayed but "it still works"?

You still don't get it.  The problem with electric blankes is *FIRE*,
not electicution.  Even if it were, there is no ground around to trip
a GFCI.  Ergo, a GFCI is completely useless in this situation.

[toc] | [prev] | [next] | [standalone]


#452338

FromJoerg <news@analogconsultants.com>
Date2017-03-17 16:54 -0700
Message-ID<ej3b8oF85vrU1@mid.individual.net>
In reply to#452206
On 2017-03-16 17:36, krw@notreal.com wrote:
> On Thu, 16 Mar 2017 08:03:58 -0700, Joerg <news@analogconsultants.com>
> wrote:
>
>> On 2017-03-15 17:38, krw@notreal.com wrote:
>>> On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
>>> <kevin@whitedigs.com> wrote:
>>>
>>>> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>>>> ...
>>>>> Again electric blankets kill more people than all other household appliances put together.
>>>>>
>>>>>
>>>>> NT
>>>>
>>>> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
>>>
>>> Exactly.  Arc-fault interruptors address this problem.  Ground Fault
>>> interrupters don't to squat.
>>>
>>
>> You have never been in the home of a frail elderly person who gets by on
>> a measly social security check and with whatever they've already got?
>> Including that heating blanket from the 70's that's already totally
>> frayed but "it still works"?
>
> You still don't get it.  The problem with electric blankes is *FIRE*,
> not electicution.  Even if it were, there is no ground around to trip
> a GFCI.  Ergo, a GFCI is completely useless in this situation.
>

Yeah, right ...

http://www.greaterkashmir.com/news/kashmir/short-circuit-in-electric-blanket-kills-senior-kashmir-doctor/234344.html

-- 
Regards, Joerg

http://www.analogconsultants.com/

[toc] | [prev] | [next] | [standalone]


#452369

Fromkrw@notreal.com
Date2017-03-17 22:35 -0400
Message-ID<n47pccdibbs44m8l2uj1mcb06b3mm7qhal@4ax.com>
In reply to#452338
On Fri, 17 Mar 2017 16:54:15 -0700, Joerg <news@analogconsultants.com>
wrote:

>On 2017-03-16 17:36, krw@notreal.com wrote:
>> On Thu, 16 Mar 2017 08:03:58 -0700, Joerg <news@analogconsultants.com>
>> wrote:
>>
>>> On 2017-03-15 17:38, krw@notreal.com wrote:
>>>> On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
>>>> <kevin@whitedigs.com> wrote:
>>>>
>>>>> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>>>>> ...
>>>>>> Again electric blankets kill more people than all other household appliances put together.
>>>>>>
>>>>>>
>>>>>> NT
>>>>>
>>>>> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
>>>>
>>>> Exactly.  Arc-fault interruptors address this problem.  Ground Fault
>>>> interrupters don't to squat.
>>>>
>>>
>>> You have never been in the home of a frail elderly person who gets by on
>>> a measly social security check and with whatever they've already got?
>>> Including that heating blanket from the 70's that's already totally
>>> frayed but "it still works"?
>>
>> You still don't get it.  The problem with electric blankes is *FIRE*,
>> not electicution.  Even if it were, there is no ground around to trip
>> a GFCI.  Ergo, a GFCI is completely useless in this situation.
>>
>
>Yeah, right ...
>
>http://www.greaterkashmir.com/news/kashmir/short-circuit-in-electric-blanket-kills-senior-kashmir-doctor/234344.html

So the great Joerg knows how to use Google.  Wow!  BTW, where did it
say anything about L-E?

[toc] | [prev] | [next] | [standalone]


#452426

FromJoerg <news@analogconsultants.com>
Date2017-03-18 07:42 -0700
Message-ID<ej4vb4FhtdhU1@mid.individual.net>
In reply to#452369
On 2017-03-17 19:35, krw@notreal.com wrote:
> On Fri, 17 Mar 2017 16:54:15 -0700, Joerg <news@analogconsultants.com>
> wrote:
>
>> On 2017-03-16 17:36, krw@notreal.com wrote:
>>> On Thu, 16 Mar 2017 08:03:58 -0700, Joerg <news@analogconsultants.com>
>>> wrote:
>>>
>>>> On 2017-03-15 17:38, krw@notreal.com wrote:
>>>>> On Wed, 15 Mar 2017 15:11:05 -0700 (PDT), kevin93
>>>>> <kevin@whitedigs.com> wrote:
>>>>>
>>>>>> On Wednesday, March 15, 2017 at 5:53:36 AM UTC-7, tabb...@gmail.com wrote:
>>>>>> ...
>>>>>>> Again electric blankets kill more people than all other household appliances put together.
>>>>>>>
>>>>>>>
>>>>>>> NT
>>>>>>
>>>>>> Although it seems that the major issue is causing fires rather than electrocution. (at least form my quick perusal via Google).
>>>>>
>>>>> Exactly.  Arc-fault interruptors address this problem.  Ground Fault
>>>>> interrupters don't to squat.
>>>>>
>>>>
>>>> You have never been in the home of a frail elderly person who gets by on
>>>> a measly social security check and with whatever they've already got?
>>>> Including that heating blanket from the 70's that's already totally
>>>> frayed but "it still works"?
>>>
>>> You still don't get it.  The problem with electric blankes is *FIRE*,
>>> not electicution.  Even if it were, there is no ground around to trip
>>> a GFCI.  Ergo, a GFCI is completely useless in this situation.
>>>
>>
>> Yeah, right ...
>>
>> http://www.greaterkashmir.com/news/kashmir/short-circuit-in-electric-blanket-kills-senior-kashmir-doctor/234344.html
>
> So the great Joerg knows how to use Google.  Wow!  BTW, where did it
> say anything about L-E?
>

No but it's obvious what happened. It was just one example and that one 
was a fatality which could most likely have been avoided had there been 
GFCI protection. Other cases result is a shock followed by a bad fall, 
meaning ER or worse. Again, when you are caring or volunteering for 
elderly people you'll find all sorts of hazardous stuff and a common one 
if worn out electric blanket. "Oh, don't worry, this still has years of 
life in it". Taking that away from an old guy is about as difficult as 
taking the car keys away.

-- 
Regards, Joerg

http://www.analogconsultants.com/

[toc] | [prev] | [next] | [standalone]


Page 2 of 5 — ← Prev page 1 [2] 3 4 5  Next page →

Back to top | Article view | sci.electronics.design


csiph-web