KPA-1500 Power Supply Cable Size

[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 <[hidden email]> 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 <[hidden email]> 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
>>> [phone]
>>>
>
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[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






--
Sent from: http://elecraft.365791.n2.nabble.com/
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[Jim Brown-10]

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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[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 <[hidden email]> 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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[Richard Thorne-4]

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 <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>    
> ______________________________________________________________
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[Elecraft mailing list]

 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 <[hidden email]> 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 <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
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>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>   
> ______________________________________________________________
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