Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread tnnyswy--- via Elecraft
 In other words! 

Keep It Simple Stupid! .KISS!
Milverton / W9MMS.



On Wednesday, August 1, 2018, 7:49:36 PM CDT, K9MA  
wrote:  
 
 If one is going to remote the KPA1500, wouldn't it make a lot more sense 
to extend the 240 V AC line? Or just install a 240 V outlet at the 
amplifier location.

73,
Scott K9MA

On 8/1/2018 16:17, j...@kk9a.com wrote:
> That is why I said "IF" you are making a longer cable...
>
> John KK9A
>
> David Bunte K9FN wrote:
>
>
> I am also a bit confused (not the first time), but I could have SWORN that
> the initial query was from someone who wanted a SHORTER cable.
>
> Dave - K9FN
>
> On Wed, Aug 1, 2018 at 3:45 PM john at kk9a.com  wrote:
>
>> Elecraft was my first experience with power pole connectors and I have
>> purchased custom cables from Powerwerx. They did a nice job, eventually I
>> purchased a crimper and connectors and made cables myself. If you are
>> making the KPA1500 cable longer than the factory cable it is probably
>> desirable to use a larger diameter. The factor may not be able to
>> accommodate this since the 75 amp connector is made for 6 awg max.
>>
>> John KK9A
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread K9MA
If one is going to remote the KPA1500, wouldn't it make a lot more sense 
to extend the 240 V AC line? Or just install a 240 V outlet at the 
amplifier location.


73,
Scott K9MA

On 8/1/2018 16:17, j...@kk9a.com wrote:

That is why I said "IF" you are making a longer cable...

John KK9A

David Bunte K9FN wrote:


I am also a bit confused (not the first time), but I could have SWORN that
the initial query was from someone who wanted a SHORTER cable.

Dave - K9FN

On Wed, Aug 1, 2018 at 3:45 PM john at kk9a.com  wrote:


Elecraft was my first experience with power pole connectors and I have
purchased custom cables from Powerwerx. They did a nice job, eventually I
purchased a crimper and connectors and made cables myself. If you are
making the KPA1500 cable longer than the factory cable it is probably
desirable to use a larger diameter. The factor may not be able to
accommodate this since the 75 amp connector is made for 6 awg max.

John KK9A

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread Jim Brown

On 8/1/2018 12:44 PM, j...@kk9a.com wrote:

eventually I
purchased a crimper and connectors and made cables myself.


Call me old-fashioned, but I've installed hundreds of Power Pole 
connectors mostly the smaller red/white ones used on the K3, but also 
the much larger grey ones that accommodate up to #4 wire. I use only 
simple hand tools and a soldering iron.


The use of crimp tools makes sense in a production environment.

73, Jim K9YC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread David Bunte
I am also a bit confused (not the first time), but I could have SWORN that
the initial query was from someone who wanted a SHORTER cable.

Dave - K9FN

On Wed, Aug 1, 2018 at 3:45 PM j...@kk9a.com  wrote:

> Elecraft was my first experience with power pole connectors and I have
> purchased custom cables from Powerwerx. They did a nice job, eventually I
> purchased a crimper and connectors and made cables myself. If you are
> making the KPA1500 cable longer than the factory cable it is probably
> desirable to use a larger diameter. The factor may not be able to
> accommodate this since the 75 amp connector is made for 6 awg max.
>
> John KK9A
>
>
> Richard Thorne rthorne at rthorne.net
> Wed Aug 1 14:15:28 EDT 2018
>
> Mike,
>
> I went directly to Elecraft with my question. The answer is 6g.
>
> I was told to be sure to use the correct crimp tool for the job.  If I
> make the cable I'll probably just have Powerwerx handle it as they have
> the correct hydraulic tool for the job.
>
> Rich - N5ZC
>
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread Clay Autery
WHICH is why I detailed in the VERY beginning on this thread how to make 
the longer cable using 4AWG (or larger if desired).  The ONLY place the 
cable would not be the larger gauge would be in the crimp terminal...


IF anyone is interested, I will repost what I wrote  or just email 
me offline.


73,

__
Clay Autery, KY5G
(318) 518-1389

On 01-Aug-18 14:44, j...@kk9a.com wrote:

Elecraft was my first experience with power pole connectors and I have
purchased custom cables from Powerwerx. They did a nice job, eventually I
purchased a crimper and connectors and made cables myself. If you are
making the KPA1500 cable longer than the factory cable it is probably
desirable to use a larger diameter. The factor may not be able to
accommodate this since the 75 amp connector is made for 6 awg max.

John KK9A


Richard Thorne rthorne at rthorne.net
Wed Aug 1 14:15:28 EDT 2018

Mike,

I went directly to Elecraft with my question. The answer is 6g.

I was told to be sure to use the correct crimp tool for the job.  If I
make the cable I'll probably just have Powerwerx handle it as they have
the correct hydraulic tool for the job.

Rich - N5ZC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread tnnyswy--- via Elecraft
 I'm missing something here!I keep seeing the question being asked, " What size 
cable is the power cord?" 
How about employing the KISS theory. 
Would it not make sense to make up an extension cord with a length to the 
approximate 
desired location from the power source? 
Such an extension would be fitted with proper receptacle as required  by 
code,and is capable of 
at least twice the Amperage required by the KPA1500. 

Milvereton /W9MMS.  

On Wednesday, August 1, 2018, 1:18:46 PM CDT, Richard Thorne 
 wrote:  
 
 Mike,

I went directly to Elecraft with my question. The answer is 6g.

I was told to be sure to use the correct crimp tool for the job.  If I 
make the cable I'll probably just have Powerwerx handle it as they have 
the correct hydraulic tool for the job.

Rich - N5ZC

On 8/1/2018 12:56 PM, Mike Maloney wrote:
> Okay have looked over the posts, but somehow have missed the actual 
> AWG(American wire gage) SIZE of the stock DC pair?   Anyone KNOW this or 
> maybe even micro-ohm tested (a long shot) it?  Voltage drop (ps to amp) 
> divided by full load dc amps would be close enough.
> 73,
> Mike  AC5P
>
>      On Tuesday, July 31, 2018 5:44 PM, Jim Brown 
> wrote:
>  
>
>  On 7/31/2018 2:40 PM, K8ZCT wrote:
>> Jim,
>>
>> Please accept my apologies.
>>
>> Sorry for giving you Kudo's for the wrong Handbook. I should have stated 
>> that you are are a contributor to the 2018 Edition of "The ARRL Handbook". I 
>> have many of your articles and to be honest the ARRL "Grounding Book" has a 
>> lot of information that is also in the National Electrical Code and IEEE 
>> "Green Book".
> I also made major contributions to N0AX's ARRL Gounding Book -- much of
> it is based on the Power and Grounding slide show talk that's on my
> website.  And some of what I've written is from the IEEE Green and
> Emerald Books."
>
>> I worked in industry for over 40 years in the power systems distribution
>> area, and I was an active member of  the IEEE IAS Power Systems Reliability
>> Subcommittee.
> The last 25 years of my work life was as a consultant designing large
> sound systems for public buildings -- theaters, stadiums, churches, jazz
> clubs, even the United Terminal at O'Hare.
>
> 73, Jim K9YC
> __
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>    
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread Richard Thorne

Mike,

I went directly to Elecraft with my question. The answer is 6g.

I was told to be sure to use the correct crimp tool for the job.  If I 
make the cable I'll probably just have Powerwerx handle it as they have 
the correct hydraulic tool for the job.


Rich - N5ZC

On 8/1/2018 12:56 PM, Mike Maloney wrote:

Okay have looked over the posts, but somehow have missed the actual 
AWG(American wire gage) SIZE of the stock DC pair?   Anyone KNOW this or maybe 
even micro-ohm tested (a long shot) it?  Voltage drop (ps to amp) divided by 
full load dc amps would be close enough.
73,
Mike  AC5P

 On Tuesday, July 31, 2018 5:44 PM, Jim Brown  
wrote:
  


  On 7/31/2018 2:40 PM, K8ZCT wrote:

Jim,

Please accept my apologies.

Sorry for giving you Kudo's for the wrong Handbook. I should have stated that you are are a contributor to 
the 2018 Edition of "The ARRL Handbook". I have many of your articles and to be honest the ARRL 
"Grounding Book" has a lot of information that is also in the National Electrical Code and IEEE 
"Green Book".

I also made major contributions to N0AX's ARRL Gounding Book -- much of
it is based on the Power and Grounding slide show talk that's on my
website.  And some of what I've written is from the IEEE Green and
Emerald Books."


I worked in industry for over 40 years in the power systems distribution
area, and I was an active member of  the IEEE IAS Power Systems Reliability
Subcommittee.

The last 25 years of my work life was as a consultant designing large
sound systems for public buildings -- theaters, stadiums, churches, jazz
clubs, even the United Terminal at O'Hare.

73, Jim K9YC
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-08-01 Thread Mike Maloney
Okay have looked over the posts, but somehow have missed the actual 
AWG(American wire gage) SIZE of the stock DC pair?   Anyone KNOW this or maybe 
even micro-ohm tested (a long shot) it?  Voltage drop (ps to amp) divided by 
full load dc amps would be close enough. 
73, 
Mike  AC5P  

On Tuesday, July 31, 2018 5:44 PM, Jim Brown  
wrote:
 

 On 7/31/2018 2:40 PM, K8ZCT wrote:
> Jim,
>
> Please accept my apologies.
>
> Sorry for giving you Kudo's for the wrong Handbook. I should have stated that 
> you are are a contributor to the 2018 Edition of "The ARRL Handbook". I have 
> many of your articles and to be honest the ARRL "Grounding Book" has a lot of 
> information that is also in the National Electrical Code and IEEE "Green 
> Book".

I also made major contributions to N0AX's ARRL Gounding Book -- much of 
it is based on the Power and Grounding slide show talk that's on my 
website.  And some of what I've written is from the IEEE Green and 
Emerald Books."

> I worked in industry for over 40 years in the power systems distribution
> area, and I was an active member of  the IEEE IAS Power Systems Reliability
> Subcommittee.

The last 25 years of my work life was as a consultant designing large 
sound systems for public buildings -- theaters, stadiums, churches, jazz 
clubs, even the United Terminal at O'Hare.

73, Jim K9YC
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Jim Brown

On 7/31/2018 2:40 PM, K8ZCT wrote:

Jim,

Please accept my apologies.

Sorry for giving you Kudo's for the wrong Handbook. I should have stated that you are are a contributor to 
the 2018 Edition of "The ARRL Handbook". I have many of your articles and to be honest the ARRL 
"Grounding Book" has a lot of information that is also in the National Electrical Code and IEEE 
"Green Book".


I also made major contributions to N0AX's ARRL Gounding Book -- much of 
it is based on the Power and Grounding slide show talk that's on my 
website.  And some of what I've written is from the IEEE Green and 
Emerald Books."



I worked in industry for over 40 years in the power systems distribution
area, and I was an active member of  the IEEE IAS Power Systems Reliability
Subcommittee.


The last 25 years of my work life was as a consultant designing large 
sound systems for public buildings -- theaters, stadiums, churches, jazz 
clubs, even the United Terminal at O'Hare.


73, Jim K9YC
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread K8ZCT
Jim, 

Please accept my apologies.

Sorry for giving you Kudo's for the wrong Handbook. I should have stated
that you are
are a contributor to the 2018 Edition of "The ARRL Handbook". I have many of
your articles
and to be honest the ARRL "Grounding Book" has a lot of information that is
also in the National Electrical Code and IEEE "Green Book".


I worked in industry for over 40 years in the power systems distribution
area, and I was an active member of  the IEEE IAS Power Systems Reliability
Subcommittee.

You are very modest about your knowledge and experience.

Bill, K8ZCT






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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Bob McGraw K4TAX
Points to consider.  A legal limit amp dissipates ~1kW of heat. Small compact 
amps must provide the same heat dissipation as physically large amps. Thus 
airflow must increase in order to cool the components in a physically small 
case amp.  Physically large amps have more room and slower airflow with the 
same cooling capacity. Slower air makes for less turbulence and equally less 
noise. 

Bob, K4TAX


Sent from my iPhone

> On Jul 31, 2018, at 1:04 PM, Fred Jensen  wrote:
> 
> Good, Fast, Cheap ... choose two.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 7/31/2018 7:21 AM, Bob McGraw K4TAX wrote:
>> Otherwise a science project with unknown results.
>> 
>> Bob, K4TAX
>> 
>> 
>> Sent from my iPhone
>> 
>>> On Jul 31, 2018, at 7:59 AM, Clay Autery  wrote:
>>> 
>>> Every successful project begins with a thorough analysis of the 
>>> REQUIREMENTS and CONDITIONS.
>>> Proper design seeks to satisfy the entries on these lists within the 
>>> available funding.
>>> 
>>> Success when skipping these steps is pure luck and coincidence.
>>> 
>>> 73,
>>> 
>>> __
>>> Clay Autery, KY5G
>>> (318) 518-1389
>>> 
> 
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Fred Jensen

Good, Fast, Cheap ... choose two.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 7/31/2018 7:21 AM, Bob McGraw K4TAX wrote:

Otherwise a science project with unknown results.

Bob, K4TAX


Sent from my iPhone


On Jul 31, 2018, at 7:59 AM, Clay Autery  wrote:

Every successful project begins with a thorough analysis of the REQUIREMENTS 
and CONDITIONS.
Proper design seeks to satisfy the entries on these lists within the available 
funding.

Success when skipping these steps is pure luck and coincidence.

73,

__
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(318) 518-1389



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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Jim Brown

On 7/31/2018 5:13 AM, K8ZCT wrote:

Jim Brown is on the National Electrical Code Committee,


Sorry, I'm not, and have never been. I do own an old copy of the NEC 
code, and have studied parts of it that affect the pro audio systems 
that I designed before I retired.  I am a member of the AES Standards 
Committee, and Vice-Chair of the Working Group on EMC (RFI). And I was a 
principal author of all AES Standards on EMC.



so he knows what he
is saying and I would trust his opinion 100%!


My comments in this thread are based on fundamental electrical 
engineering principles like Ohm's Law, and my knowledge of NEC 
requirements.


73, Jim K9YC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Bob McGraw K4TAX
Otherwise a science project with unknown results. 

Bob, K4TAX


Sent from my iPhone

> On Jul 31, 2018, at 7:59 AM, Clay Autery  wrote:
> 
> Every successful project begins with a thorough analysis of the REQUIREMENTS 
> and CONDITIONS.
> Proper design seeks to satisfy the entries on these lists within the 
> available funding.
> 
> Success when skipping these steps is pure luck and coincidence.
> 
> 73,
> 
> __
> Clay Autery, KY5G
> (318) 518-1389
> 
>> On 31-Jul-18 07:13, K8ZCT wrote:
>> Jim Brown is on the National Electrical Code Committee, so he knows what he
>> is saying and I would trust his opinion 100%!
>> 
>> I guess my thought on any remote wiring is, if your really going to go
>> through all the effort to do the project, then do it with materials, that
>> you know when you purchase them are going to work for the duration of the
>> installation, and provide you a reliable and safe installation. Cost should
>> not be your only consideration. [...]
>> Bill, K8ZCT
>> 
>> 
> 
> __
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread Clay Autery
Every successful project begins with a thorough analysis of the 
REQUIREMENTS and CONDITIONS.
Proper design seeks to satisfy the entries on these lists within the 
available funding.


Success when skipping these steps is pure luck and coincidence.

73,

__
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(318) 518-1389

On 31-Jul-18 07:13, K8ZCT wrote:

Jim Brown is on the National Electrical Code Committee, so he knows what he
is saying and I would trust his opinion 100%!

I guess my thought on any remote wiring is, if your really going to go
through all the effort to do the project, then do it with materials, that
you know when you purchase them are going to work for the duration of the
installation, and provide you a reliable and safe installation. Cost should
not be your only consideration. [...]
Bill, K8ZCT




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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-31 Thread K8ZCT
Jim Brown is on the National Electrical Code Committee, so he knows what he
is saying and I would trust his opinion 100%!

I guess my thought on any remote wiring is, if your really going to go
through all the effort to do the project, then do it with materials, that
you know when you purchase them are going to work for the duration of the
installation, and provide you a reliable and safe installation. Cost should
not be your only consideration. I have never seen any detailed
specifications on speaker wire, when I have bought it to wire up my audio
system. However, I knew that I was using it to wire up speakers, and the
speakers were not a long distance from the amplifier.

If the remote run is long, voltage drop in the cable is very critical. You
also should consider protecting the wiring, so you may need to think of
using conduit or some type of protected raceway as having wires carrying 60V
in the open is also not a good idea. I think that considering diesel
locomotive wire or similar flexible cable would be a good solution. It all
depends on how far away the remote supply is located from the main amplifier
and where it is being routed to the final destination.

Unfortunately, I have seen people try to use speaker wire or lamp cord to do
provide power in crazy ways.

One guy I remember years ago was a recent immigrant from Eastern Europe with
no electrical knowledge although he was an engineer. He wired his entire
basement with speaker wire. Of course, I  politely told him that was not a
good idea, and that it was against the local and National Electrical Code to
install. His initial response was that he thought is was a lot easier to
install than the solid wire cable called Romex.

Bill, K8ZCT




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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-30 Thread Charlie T
Be VERY cautious of unknown Red/White wire, either twisted or mesh shielded.  
That is the industry standard color code for Iron/Constantan, Type J 
Thermocouple wire.   It has MUCH higher resistance than the same size copper 
wire.  


73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Jim Brown
Sent: Monday, July 30, 2018 3:32 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-1500 Power Supply Cable Size

On 7/30/2018 6:43 AM, K8ZCT wrote:
> Speaker wire is made for speaker systems. Although it may look like "lamp 
> cord" it is not listed for use to wire up a lamp.

Right -- it has to do with voltage breakdown of the insulation, which must be 
3kV on the AC power line (in the case of a lightning spike).

It is my understanding that the KPA1500 operates at about 60VDC, and that cable 
is carrying 50-60A. There are no lightning spikes to contend with. All that 
matters is DC resistance, sufficiently robust physical construction, and 
voltage breakdown.

In large sound systems, power amps often produce voltage peaks in the range of 
150V.

FWIW, the Red/White zip cord sold as speaker cable is often pretty lousy 
quality. Insulation is made very thick as a marketing measure -- to make it 
look "beefier" than it really is, and therefore worth more money. :) When I've 
measured some hamfest cables like this with a micrometer I've found that 
they're actually smaller than labeled!  In other words, we're getting cheated. 
:)

73, Jim K9YC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-30 Thread Jim Brown

On 7/30/2018 6:43 AM, K8ZCT wrote:

Speaker wire is made for speaker systems. Although it may look like "lamp cord" 
it is not listed for use to wire up a lamp.


Right -- it has to do with voltage breakdown of the insulation, which 
must be 3kV on the AC power line (in the case of a lightning spike).


It is my understanding that the KPA1500 operates at about 60VDC, and 
that cable is carrying 50-60A. There are no lightning spikes to contend 
with. All that matters is DC resistance, sufficiently robust physical 
construction, and voltage breakdown.


In large sound systems, power amps often produce voltage peaks in the 
range of 150V.


FWIW, the Red/White zip cord sold as speaker cable is often pretty lousy 
quality. Insulation is made very thick as a marketing measure -- to make 
it look "beefier" than it really is, and therefore worth more money. :) 
When I've measured some hamfest cables like this with a micrometer I've 
found that they're actually smaller than labeled!  In other words, we're 
getting cheated. :)


73, Jim K9YC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-30 Thread K8ZCT
One of previous posts recommended using speaker wire for the remote
connection of the KPA-1500 amplifier to the KPA-1500 power supply.

Speaker wire is made for speaker systems. Although it may look like "lamp
cord" it is not listed
for use to wire up a lamp. You should buy rated "lamp cord" for that
purpose. I think the same applies for dc wiring.

I am not the code inspector for anyone, so do what you want, but if I had a
long remote power supply feed, it would be wired with the proper size cable
rated for the purpose. I suppose one idea could be to splice the larger size
cable required for the longer distance to the Elecraft supplied cable at the
termination end of the amplifier. The power supply protection protects the
smaller Elecraft wire as designed, so going back to it at the very end is
not an issue.








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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-30 Thread W2xj
Context?

Sent from my iPad

> On Jul 30, 2018, at 4:12 AM, K8ZCT  wrote:
> 
> I don't think speaker cable has a voltage rating for this purpose.
> 
> 
> 
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-30 Thread K8ZCT
I don't think speaker cable has a voltage rating for this purpose.



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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread john
It is good it will accept a larger conductor, especially for someone wanting to 
move their KPA1500 power supply further from the amp portion.  I had a tough 
time installing 8 awg to the PowerPole 45 amp K3S connector which is designed 
for 10 awg max.

John KK9A

-Original Message-
From: Larry (K8UT) [mailto:k...@charter.net] 
Sent: Saturday, July 28, 2018 3:30 PM
To: j...@kk9a.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-1500 Power Supply Cable Size

I purchased 75 amp Anderson Powerpole connectors and #6 flex speaker cable from 
Debco Electronics for my extension cable. #6 fit easily. I suspect even #4 
would have fit, but I see no reason to get that large.

-larry (K8UT)

-- Original Message --
From: j...@kk9a.com
To: "'Elecraft Reflector'" 
Sent: 2018-07-28 15:21:03
Subject: [Elecraft] KPA-1500 Power Supply Cable Size

>The 75 amp Powerpole connector is designed for 6, 8 or 10 AWG wire so 
>you might have problems squeezing a larger wire in.
>
>
>John KK9A
>
>
>[Elecraft] KPA-1500 Power Supply Cable Size Clay Autery KY5G at 
>montac.com
>
>If it uses a 75 Amp PP connector, my inclination would be to use the 
>6AWG MINIMUM.  I would be tempted to use the flexible welding cable 
>lead stock in the largest gauge I could fit in the application space.  
>I'd trim down the end of the conductor to JUST fit into the 75 AMP 
>crimp contact.  Then, I'd tine the trimmed down end to bond ALL the 
>conductors together right at the end before I crimped/soldered. Then, 
>I'd crimp/solder the terminal on making sure not to be sloppy and cause 
>a fitment issue.  If possible, I would put as many twists in the 
>red/black leads between radio and power supply connection as 
>possible
>
>I've not investigated the wiring yet, BUT, if there is a ground wire 
>between the PA chassis and the PS chassis, I would integrate the ground 
>wire into the power harness in a 3-wire bundle with all three wires as 
>close to the same length and shinked into a single cable.
>
>But I'm nuts...  
>
>>
>>On Sat, Jul 28, 2018 at 5:04 AM, Richard Thorne >rthorne.net>
>wrote:
>>
>>>What gauge wire is used for the HV line between the power supply and 
>>>amp?
>>>I'd like to build or source a shorter cable.
>>>
>>>Thanks
>>>
>>>Rich - N5ZC
>
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Clay Autery
Presuming of course that the "zip cord" cable stock is the size and 
flexibility you want/"need".  PP crimp tools are hardly exotic  And 
believe it or not some of us enjoy making our own cables...  


__
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(318) 518-1389

On 28-Jul-18 22:11, Phil Kane wrote:

On 7/28/2018 1:57 PM, Clay Autery wrote:

Only problem, besides price, for the Powerwerx custom cables is that
they don't have twisted pair  only parallel conductors.

Split the PP.  Split the conductors. Do the twist.  Re-slide the PPs.
I've done that on a bunch of cables.  Does not require advanced
engineering degrees or exotic tools.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

 From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Phil Kane
On 7/28/2018 1:57 PM, Clay Autery wrote:
> Only problem, besides price, for the Powerwerx custom cables is that
> they don't have twisted pair  only parallel conductors.

Split the PP.  Split the conductors. Do the twist.  Re-slide the PPs.
I've done that on a bunch of cables.  Does not require advanced
engineering degrees or exotic tools.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Clay Autery
Sure  like I've said many times, I'm an ocd over-engineer and already 
keep the connectors, housings, and tools on-hand.
Glad you found a solution to meet your needs!!!  Enjoy!
73,Clay, KY5G


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Richard Thorne  
Date: 7/28/18  16:06  (GMT-06:00) To: Clay Autery , Elecraft 
Reflector  Subject: Re: [Elecraft] KPA-1500 Power 
Supply Cable Size 

Clay,



For a one time deal, the price is competitive compared to buying the
tools, cable and PP's to do it yourself.



Elecraft is using parallel conductors for the HV line between the
power supply and amp, so it fits the bill nicely.



Rich - N5ZC



On 7/28/2018 3:57 PM, Clay Autery
  wrote:



  
  Only problem, besides price, for the Powerwerx custom cables
is that they don't have twisted pair  only parallel
conductors.
  

  
  73,
  Clay, KY5G
  

  
  

  
  

  
  
Sent from my
  Verizon, Samsung Galaxy smartphone
  
  

  
  
 Original message 
From: Richard Thorne  
Date: 7/28/18 15:52 (GMT-06:00) 
To: Elecraft Reflector  
Subject: Re: [Elecraft] KPA-1500 Power Supply Cable Size 



  
  Looks like I can order a custom cable from powerwerx.com with 75
  amp 

  power poles and 6g wire (assuming that's the correct size). 

  https://powerwerx.com/custom-dc-power-cables

  

  The crimp tool is not too expensive so it may be worth buying the
  tool 

  and rolling my own.  I've used 15,30 and 45 amp PP's for years,
  just 

  never had a need for 75 amp PP's so I never purchased the
  equipment.

  

  Rich - N5ZC

  

  On 7/28/2018 7:04 AM, Richard Thorne wrote:

  > What gauge wire is used for the HV line between the power
  supply and 

  > amp?  I'd like to build or source a shorter cable.

  >

  > Thanks

  >

  > Rich - 




  
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Richard Thorne

Clay,

For a one time deal, the price is competitive compared to buying the 
tools, cable and PP's to do it yourself.


Elecraft is using parallel conductors for the HV line between the power 
supply and amp, so it fits the bill nicely.


Rich - N5ZC

On 7/28/2018 3:57 PM, Clay Autery wrote:
Only problem, besides price, for the Powerwerx custom cables is that 
they don't have twisted pair  only parallel conductors.


73,
Clay, KY5G



Sent from my Verizon, Samsung Galaxy smartphone

 Original message 
From: Richard Thorne 
Date: 7/28/18 15:52 (GMT-06:00)
To: Elecraft Reflector 
Subject: Re: [Elecraft] KPA-1500 Power Supply Cable Size

Looks like I can order a custom cable from powerwerx.com with 75 amp
power poles and 6g wire (assuming that's the correct size).
https://powerwerx.com/custom-dc-power-cables

The crimp tool is not too expensive so it may be worth buying the tool
and rolling my own.  I've used 15,30 and 45 amp PP's for years, just
never had a need for 75 amp PP's so I never purchased the equipment.

Rich - N5ZC

On 7/28/2018 7:04 AM, Richard Thorne wrote:
> What gauge wire is used for the HV line between the power supply and
> amp?  I'd like to build or source a shorter cable.
>
> Thanks
>
> Rich -


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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Larry (K8UT)
The stock cable is parallel conductors @ 5.5 feet long. Too short to 
reach into the closet in my shack. I bought 10 feet of #6 and the 75 amp 
powerpole connectors from Debco for about $22. I did not have the 75 amp 
crimp tool and soldered the cable into the connectors.


-larry (K8UT)

-- Original Message --
From: "Clay Autery" 
To: "Richard Thorne" ; "Elecraft Reflector" 


Sent: 2018-07-28 16:57:52
Subject: Re: [Elecraft] KPA-1500 Power Supply Cable Size

Only problem, besides price, for the Powerwerx custom cables is that 
they don't have twisted pair  only parallel conductors.

73,Clay, KY5G


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Richard Thorne 
 Date: 7/28/18  15:52  (GMT-06:00) To: Elecraft 
Reflector  Subject: Re: [Elecraft] KPA-1500 
Power Supply Cable Size

Looks like I can order a custom cable from powerwerx.com with 75 amp
power poles and 6g wire (assuming that's the correct size).
https://powerwerx.com/custom-dc-power-cables

The crimp tool is not too expensive so it may be worth buying the tool
and rolling my own.  I've used 15,30 and 45 amp PP's for years, just
never had a need for 75 amp PP's so I never purchased the equipment.

Rich - N5ZC

On 7/28/2018 7:04 AM, Richard Thorne wrote:

What gauge wire is used for the HV line between the power supply and
amp?  I'd like to build or source a shorter cable.

Thanks

Rich -

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Clay Autery
Only problem, besides price, for the Powerwerx custom cables is that they don't 
have twisted pair  only parallel conductors.
73,Clay, KY5G


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Richard Thorne  
Date: 7/28/18  15:52  (GMT-06:00) To: Elecraft Reflector 
 Subject: Re: [Elecraft] KPA-1500 Power Supply Cable 
Size 
Looks like I can order a custom cable from powerwerx.com with 75 amp 
power poles and 6g wire (assuming that's the correct size). 
https://powerwerx.com/custom-dc-power-cables

The crimp tool is not too expensive so it may be worth buying the tool 
and rolling my own.  I've used 15,30 and 45 amp PP's for years, just 
never had a need for 75 amp PP's so I never purchased the equipment.

Rich - N5ZC

On 7/28/2018 7:04 AM, Richard Thorne wrote:
> What gauge wire is used for the HV line between the power supply and 
> amp?  I'd like to build or source a shorter cable.
>
> Thanks
>
> Rich - 
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Richard Thorne
Looks like I can order a custom cable from powerwerx.com with 75 amp 
power poles and 6g wire (assuming that's the correct size). 
https://powerwerx.com/custom-dc-power-cables


The crimp tool is not too expensive so it may be worth buying the tool 
and rolling my own.  I've used 15,30 and 45 amp PP's for years, just 
never had a need for 75 amp PP's so I never purchased the equipment.


Rich - N5ZC

On 7/28/2018 7:04 AM, Richard Thorne wrote:
What gauge wire is used for the HV line between the power supply and 
amp?  I'd like to build or source a shorter cable.


Thanks

Rich - N5ZC
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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Larry (K8UT)
I purchased 75 amp Anderson Powerpole connectors and #6 flex speaker 
cable from Debco Electronics for my extension cable. #6 fit easily. I 
suspect even #4 would have fit, but I see no reason to get that large.


-larry (K8UT)

-- Original Message --
From: j...@kk9a.com
To: "'Elecraft Reflector'" 
Sent: 2018-07-28 15:21:03
Subject: [Elecraft] KPA-1500 Power Supply Cable Size

The 75 amp Powerpole connector is designed for 6, 8 or 10 AWG wire so 
you

might have problems squeezing a larger wire in.


John KK9A


[Elecraft] KPA-1500 Power Supply Cable Size
Clay Autery KY5G at montac.com

If it uses a 75 Amp PP connector, my inclination would be to use the
6AWG MINIMUM.  I would be tempted to use the flexible welding cable 
lead

stock in the largest gauge I could fit in the application space.  I'd
trim down the end of the conductor to JUST fit into the 75 AMP crimp
contact.  Then, I'd tine the trimmed down end to bond ALL the 
conductors

together right at the end before I crimped/soldered. Then, I'd
crimp/solder the terminal on making sure not to be sloppy and cause a
fitment issue.  If possible, I would put as many twists in the 
red/black

leads between radio and power supply connection as possible

I've not investigated the wiring yet, BUT, if there is a ground wire
between the PA chassis and the PS chassis, I would integrate the ground
wire into the power harness in a 3-wire bundle with all three wires as
close to the same length and shinked into a single cable.

But I'm nuts...  



On Sat, Jul 28, 2018 at 5:04 AM, Richard Thorne rthorne.net>

wrote:


What gauge wire is used for the HV line between the power supply and 
amp?

I'd like to build or source a shorter cable.

Thanks

Rich - N5ZC


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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Clay Autery
If it uses a 75 Amp PP connector, my inclination would be to use the 
6AWG MINIMUM.  I would be tempted to use the flexible welding cable lead 
stock in the largest gauge I could fit in the application space.  I'd 
trim down the end of the conductor to JUST fit into the 75 AMP crimp 
contact.  Then, I'd tine the trimmed down end to bond ALL the conductors 
together right at the end before I crimped/soldered. Then, I'd 
crimp/solder the terminal on making sure not to be sloppy and cause a 
fitment issue.  If possible, I would put as many twists in the red/black 
leads between radio and power supply connection as possible


I've not investigated the wiring yet, BUT, if there is a ground wire 
between the PA chassis and the PS chassis, I would integrate the ground 
wire into the power harness in a 3-wire bundle with all three wires as 
close to the same length and shinked into a single cable.


But I'm nuts...  

73,

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Clay Autery, KY5G
(318) 518-1389

On 28-Jul-18 12:07, Bob Wilson, N6TV wrote:

I don't see it documented, but it uses a 75A PowerPole connector.  Cable
thickness (with insulation) is 1/3rd of an inch so I'm guessing it's AWG
#6.  It's VERY heavy.

73,
Bob, N6TV

On Sat, Jul 28, 2018 at 5:04 AM, Richard Thorne  wrote:


What gauge wire is used for the HV line between the power supply and amp?
I'd like to build or source a shorter cable.

Thanks

Rich - N5ZC

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Re: [Elecraft] KPA-1500 Power Supply Cable Size

2018-07-28 Thread Bob Wilson, N6TV
I don't see it documented, but it uses a 75A PowerPole connector.  Cable
thickness (with insulation) is 1/3rd of an inch so I'm guessing it's AWG
#6.  It's VERY heavy.

73,
Bob, N6TV

On Sat, Jul 28, 2018 at 5:04 AM, Richard Thorne  wrote:

> What gauge wire is used for the HV line between the power supply and amp?
> I'd like to build or source a shorter cable.
>
> Thanks
>
> Rich - N5ZC
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