Re: Power distribution, was: 2-wire, unpolarized outlet ?
Let’s try to make peace with AC and DC power this way --
Low voltage DC transmission is impractical.
High voltage DC transmission works great since there is no “Crest Factor” to deal with.? In HVDC the average, rms, and peak values are all the same.? This means higher voltage without peaks requires less costly extreme voltage insulators, and better utilization of the conductors as there is no skin effect, and no concerns for reactance.
For distribution – generally at lower voltage, AC wins since with transformers we can fiddle with the distribution voltages to optimize demands on conductor size, conductor loss, and insulation requirements.
AC and DC are both great power systems – each with advantages and disadvantages.
Mike/
K5MGR
_____________________________________________
Mike Langner
929 Alameda Road NW
Albuquerque, NM 87114-1901
(505) 898-3212 home/home office
(505) 238-8810 cell
mlangner@...
?
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From: [email protected] <[email protected]> On Behalf Of Jim Whartenby via groups.io
Sent: Friday, January 10, 2025 1:34 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] Power distribution, was: 2-wire, unpolarized outlet ?? You are mistaken.? See:?? for a very long list of existing HVDC transmission projects. Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy On Friday, January 10, 2025 at 01:44:27 PM CST, Donald J via groups.io <djeffarndt@...> wrote: Long range DC distribution is not practical as we have proven many times over Under the Edison system EVERY block in New York had to have its own generator as running the DC more than a block was to cost prohibitive as the wire became so thick ? On Fri, Jan 10, 2025 at 2:30?PM Jim Whartenby via <old_radio=[email protected]> wrote: No, I read it correctly.? You are proposing a distinction without a difference.? The Edison system was developed to reduce the number of conductors and the cost in a power distribution system, a benefit applied equally well to both DC and AC systems. Might as well debunk another myth that AC is more efficient then DC in power distribution.? The main losses in both systems is due to wire resistance but AC distribution also has reactive and skin effect losses that DC distribution does not have.? AC power distribution is perhaps more convenient but?it is less efficient.?? Regards from a snowy Arkansas, Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy On Friday, January 10, 2025 at 11:53:47 AM CST, Donald J via <djeffarndt=[email protected]> wrote: You did not read that right It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system! A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system. ? On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio=[email protected]> wrote: Yes, it is known as the Edison split phase system, see: Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt=[email protected]> wrote: "Edison" split phase system? Edison fought the AC system - he was the DC guy Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. ? On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio=[email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
|
Re: Power distribution, was: 2-wire, unpolarized outlet ?
Donald You are mistaken.? See:?? for a very long list of existing HVDC transmission projects. Regards, Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Long range DC distribution is not practical as we have proven many times over
Under the Edison system EVERY block in New York had to have its own generator as running the DC more than a block was to cost prohibitive as the wire became so thick
On Fri, Jan 10, 2025 at 2:30?PM Jim Whartenby via <old_radio= [email protected]> wrote: No, I read it correctly.? You are proposing a distinction without a difference.? The Edison system was developed to reduce the number of conductors and the cost in a power distribution system, a benefit applied equally well to both DC and AC systems.
Might as well debunk another myth that AC is more efficient then DC in power distribution.? The main losses in both systems is due to wire resistance but AC distribution also has reactive and skin effect losses that DC distribution does not have.? AC power distribution is perhaps more convenient but?it is less efficient.?? See:?? Regards from a snowy Arkansas, Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 11:53:47 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system. On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: Power distribution, was: 2-wire, unpolarized outlet ?
Long range DC distribution is not practical as we have proven many times over
Under the Edison system EVERY block in New York had to have its own generator as running the DC more than a block was to cost prohibitive as the wire became so thick
On Fri, Jan 10, 2025 at 2:30?PM Jim Whartenby via <old_radio= [email protected]> wrote: No, I read it correctly.? You are proposing a distinction without a difference.? The Edison system was developed to reduce the number of conductors and the cost in a power distribution system, a benefit applied equally well to both DC and AC systems.
Might as well debunk another myth that AC is more efficient then DC in power distribution.? The main losses in both systems is due to wire resistance but AC distribution also has reactive and skin effect losses that DC distribution does not have.? AC power distribution is perhaps more convenient but?it is less efficient.?? See:?? Regards from a snowy Arkansas, Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 11:53:47 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system. On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: Power distribution, was: 2-wire, unpolarized outlet ?
Just pointing out that is it no longer called the Edison system
Any relation to Edison is now gone so stop calling it that
The only Edison we have kept is his light bulb screw and it socket
On Fri, Jan 10, 2025 at 2:30?PM Jim Whartenby via <old_radio= [email protected]> wrote: No, I read it correctly.? You are proposing a distinction without a difference.? The Edison system was developed to reduce the number of conductors and the cost in a power distribution system, a benefit applied equally well to both DC and AC systems.
Might as well debunk another myth that AC is more efficient then DC in power distribution.? The main losses in both systems is due to wire resistance but AC distribution also has reactive and skin effect losses that DC distribution does not have.? AC power distribution is perhaps more convenient but?it is less efficient.?? See:?? Regards from a snowy Arkansas, Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 11:53:47 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system. On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: Power distribution, was: 2-wire, unpolarized outlet ?
No, I read it correctly.? You are proposing a distinction without a difference.? The Edison system was developed to reduce the number of conductors and the cost in a power distribution system, a benefit applied equally well to both DC and AC systems.
Might as well debunk another myth that AC is more efficient then DC in power distribution.? The main losses in both systems is due to wire resistance but AC distribution also has reactive and skin effect losses that DC distribution does not have.? AC power distribution is perhaps more convenient but?it is less efficient.?? See:?? Regards from a snowy Arkansas, Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system.
On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
Getting back to the original grounding question/concerns:
Here is some good info on residential grounding:
I am adding some info on the sub-panel:? why in a moment
In the subpanel info, it doesn't mention much about the separation of grounds and neutrals but the inset picture shows it. The grounds? have a separate bus bar and the neutral bar is insulated from the enclosure?so it does not share the ground?- only neutral wires are connected to it.
The reason I want to share this with you - I ran into this problem because my main breaker panel became a subpanel with the new electrical code.
When you do an upgrade to your household electrical and it could be just replacing your existing panel with a better one is enough to jump you to the new code in most jurisdictions. The new code requires that an emergency disconnect switch has to be added to the outside of the home near/next to the electrical service meter. This is because fire and other emergency folks? want a way to easily and quickly shut off power so they don't have to worry about it while handling an emergency such as a fire.
So, this outside disconnect (it can be a switch or a circuit breaker type in an enclosure) but due to code, this enclosure has bonded neutral with dual ground rod grounding and becomes your MAIN now. So your inside the home breaker/load panel you have becomes a SUB and now you have to isolate your ground?wires and neutral wires in your home wiring!
If this happens to you, it could be expensive and time consuming so I wanted to share that.
Best to you all
Donald
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system.
On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
Hi Jim, I would copy what I see on Wiki-p? , but I will just mention that I see some critical punctuation in there. Others should look for themselves. ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Jim Whartenby via groups.io
Sent: Friday, January 10, 2025 10:25 AM
To: [email protected]
Subject: Re: [HallicraftersRadios] 2-wire, unpolarized outlet ?? Yes, it is known as the Edison split phase system, see: -- don??? va3drl
|
Re: Another new member -- intro
Tom
Welcome from another "SWL / non ham" guy
You will be amazed at the amount of knowledge from these guys here
Tom Latimer
On 1/10/2025 12:34, Allthumbs via
groups.io wrote:
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I have just been approved as a member of this list and have
been busy reading many of the posts to familiarize myself with
it. I am not a licensed amateur radio operator but have been a
SWL since high school in the Sixties. I "discovered" shortwave
when my father let me fiddle with his 1936 RCA Victor 2-band
consumer radio which he had purchased new. I found it in my
parents' attic ca. 1990 and restored it. I own two Hallicrafters
receivers--an almost-functioning S20R which I've owned for a
couple of years, and an SX-28 (not an "A" model) which I've
owned and used for over 30 years and which failed a couple of
months ago. I intend to get both operating before long and will
probably have a few questions about them for this list along the
way. Looking forward to following many of the topics discussed
here.
?
Tom
|
Re: Another new member -- intro
Nick
Beautiful radio
Tom Latimer
On 1/10/2025 13:21, Nick, W1NJC via
groups.io wrote:
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Welcome, Tom.? I'm also new to this forum.? I've been a ham
for 30+ years now and in the past several years have gotten into
vintage receivers and transmitters.? I hope saying this doesn't
get me in trouble, but antiqueradios.com and amfone.net are also
great resources to scour when looking for info on vintage gear.
My most recent Halli endeavor is a SX-23 from 1939:
?
?
Good luck with the S-20R and the SX-28!
?
73,
Nick W1NJC
|
Re: Another new member -- intro
That’s the best looking SX-23 I’ve seen.? Congrats! ? Paul, W9AC ? ?
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From: [email protected] <[email protected]> On Behalf Of Nick, W1NJC via groups.io
Sent: Friday, January 10, 2025 1:21 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] Another new member -- intro? Welcome, Tom.? I'm also new to this forum.? I've been a ham for 30+ years now and in the past several years have gotten into vintage receivers and transmitters.? I hope saying this doesn't get me in trouble, but antiqueradios.com and amfone.net are also great resources to scour when looking for info on vintage gear. My most recent Halli endeavor is a SX-23 from 1939: Good luck with the S-20R and the SX-28!
|
Re: Another new member -- intro
Welcome, Tom.? I'm also new to this forum.? I've been a ham for 30+ years now and in the past several years have gotten into vintage receivers and transmitters.? I hope saying this doesn't get me in trouble, but antiqueradios.com and amfone.net are also great resources to scour when looking for info on vintage gear.
My most recent Halli endeavor is a SX-23 from 1939:
?
?
Good luck with the S-20R and the SX-28!
?
73,
Nick W1NJC
|
Another new member -- intro
I have just been approved as a member of this list and have been busy reading many of the posts to familiarize myself with it. I am not a licensed amateur radio operator but have been a SWL since high school in the Sixties. I "discovered" shortwave when my father let me fiddle with his 1936 RCA Victor 2-band consumer radio which he had purchased new. I found it in my parents' attic ca. 1990 and restored it. I own two Hallicrafters receivers--an almost-functioning S20R which I've owned for a couple of years, and an SX-28 (not an "A" model) which I've owned and used for over 30 years and which failed a couple of months ago. I intend to get both operating before long and will probably have a few questions about them for this list along the way. Looking forward to following many of the topics discussed here.
?
Tom
|
Re: 2-wire, unpolarized outlet ?
You did not read that right
It is similar but not the Edison system - the one we use is SIMILAR to the Edison split DC system!
A?split-phase?or?single-phase three-wire?system is a type of??distribution. It is the??(AC) equivalent of the original??three-wire??system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system.
On Fri, Jan 10, 2025 at 10:25?AM Jim Whartenby via <old_radio= [email protected]> wrote: Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Friday, January 10, 2025 at 04:12:26 AM CST, Donald J via <djeffarndt= [email protected]> wrote:
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate. On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
Yes, it is known as the Edison split phase system, see: Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate.
On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
"Edison" split phase system? Edison fought the AC system - he was the DC guy
Grounding and where neutral and ground interconnect depends on where the main (i.e. first) panel is located. After that any other panels the grounds and neutrals are separate.
On Mon, Jan 6, 2025 at 10:53?PM Jim Whartenby via <old_radio= [email protected]> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
Leon,? RE ?you should?CHECK AND INSPECT it from time to time Check IT the neutral only ? or IT the local grounding only ?? … as far the neutral is concerned, ?how do you go about testing it ? Your local ground might be easier to test.. but exactly what are you going to test ??? my guess would be that corroded connections are high on the list of potential failure points. People in this general area might just LOOSE their ground rod connection? due to the midnight copper thieves.. ? Thinking about? any disconnection to test, I am reminded of a ?“Mayday” episode where a big fancy plane crashed, primarily caused by tape put over the pitot tubes while they washed the plane or something, but the tape was not removed and was very hard to see from the ground.. so they were well up in the air before they knew the altitude gauges were wonky. ?? ? weedeater operators should be required to have a license; they could take your fenders off too. The guy next door it trying to fell our shared power pole with his weedeater Sorry for all the extra gibberish ? ? Leon Robinson ?? K5JLR
Political Correctness is a Political Disease.
Politicians and Diapers should be changed
often and for the same reasons. ? ? On Monday, January 6, 2025 at 09:53:32 PM CST, Jim Whartenby via groups.io <old_radio@...> wrote: ? ? Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy ? ? On Monday, January 6, 2025 at 02:57:23 PM CST, don Root <drootofallevil@...> wrote: ? ? Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Leon Robinson
Sent: Thursday, January 9, 2025 4:59 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] 2-wire, unpolarized outlet ?? That's the way it is supposed to be.? But to be SAFE you should? CHECK AND INSPECT it from time to time, things can and do happen. Recently my internet connection on the power?pole was cut by a weedeater. Things like this do happen occasionally. Leon Robinson ?? K5JLR
Political Correctness is a Political Disease.
Politicians and Diapers should be changed
often and for the same reasons. On Monday, January 6, 2025 at 09:53:32 PM CST, Jim Whartenby via groups.io <old_radio@...> wrote: Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. -- don??? va3drl
|
Re: 2-wire, unpolarized outlet ?
That's the way it is supposed to be.? But to be SAFE you should? CHECK AND INSPECT it from time to time, things can and do happen.
Recently my internet connection on the power?pole was cut by a weedeater. Things like this do happen occasionally.
Leon Robinson ?? K5JLR
Political Correctness is a Political Disease.
Politicians and Diapers should be changed
often and for the same reasons.
On Monday, January 6, 2025 at 09:53:32 PM CST, Jim Whartenby via groups.io <old_radio@...> wrote:
Isn't the neutral line grounded in the Edison split phase system at the pole mounted transformer and again at the service entrance of the residence?? Every house I have lived in had a copper clad steel rod driven into the ground just below the power meter and the main cutoff switch boxes. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Maynard, it was the connection at the pole in my case; anyhow as someone said, the so called “neutral” can not be guaranteed to be at ground level. ?
From: [email protected] [mailto:[email protected]] On Behalf Of Maynard Wright, P. E., W6PAP via groups.io
Sent: Monday, January 6, 2025 9:18 AM
To: [email protected]
Subject: Re: [HallicraftersRadios] 2-wire, unpolarized outlet ? ? That happened to mine, too, some years ago. Measurements showed that
the neutral lead coming from the power company via the service entrance
had a loose connection which the power guys fixed quickly once they arrived.
73,
Maynard
W6PAP
--
don??? va3drl
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Great catch Walt!
HNY.
73/jeff/ac0c
alpha-charlie-zero-charlie
On 1/9/2025 12:17 PM, waltcates via
groups.io wrote:
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Some time ago there was a topic about a frequency shift when
switching from standby to transmit and a problem with the
calibrate switching function for CW operation in the HT-46.
Today I ran across a service bulletin addressing this issue.
Guess where?? On my website. I knew I had it somewhere, but
the old gray cells sometimes don't function well. I guess I
need a full re-alignment. Just in case the issue was
not?resolved, here?is the bulletin.
?
Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.
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Some time ago there was a topic about a frequency shift when switching from standby to transmit and a problem with the calibrate switching function for CW operation in the HT-46.
Today I ran across a service bulletin addressing this issue. Guess where?? On my website. I knew I had it somewhere, but the old gray cells sometimes don't function well. I guess I need a full re-alignment. Just in case the issue was not?resolved, here?is
the bulletin.
?
Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.
|
Testing the waters for a SX-28 cabinet intact and in good condition. The SX-28A I'm finishing up needs a nice cabinet to go with it.
?
Let me know what you have.
?
Thanks,?
Tom
W3TA
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Mike Langner
Jim Whartenby
Donald J
don Root
Paul Christensen
Allthumbs
waltcates