This has pretty pictures:  
https://www.sa.gov.au/topics/energy-and-environment/electrical-gas-and-plumbing-safety-and-technical-regulation/powerline-safety/identifying-powerlines
 
<https://www.sa.gov.au/topics/energy-and-environment/electrical-gas-and-plumbing-safety-and-technical-regulation/powerline-safety/identifying-powerlines>
   

This is way in-depth but gives an idea by height:  
https://trace.tennessee.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=5139&context=utk_gradthes
 
<https://trace.tennessee.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=5139&context=utk_gradthes>

Mark

> On Apr 10, 2019, at 12:55 PM, Chuck McCown <ch...@wbmfg.com> wrote:
> 
> Primary electricians can tell by the insulators.  How many plates etc. 
>  
>  
> From: Adam Moffett <>
> Sent: Wednesday, April 10, 2019 9:43 AM
> To: af@af.afmug.com <>
> Subject: Re: [AFMUG] NESC
>  
> How do you tell what the voltage is?  Can the markings on a transformer tell 
> you?
> 
> The power co will tell me where they want me to be, but I'm trying to 
> understand this stuff better so I can argue intelligently about make-ready.  
> Make-ready is going to put us in the poor house.
> 
> -Adam
> 
> 
> 
> On 4/10/2019 11:19 AM, Mark Radabaugh wrote:
>> Depends on voltage on the primary:
>>  
>> <PastedGraphic-1.png>
>>  
>> That is a NESC table but utilities can set their own standards that exceed 
>> the NESC.
>>  
>> Mark
>>  
>> 
>>> On Apr 10, 2019, at 9:55 AM, Adam Moffett <dmmoff...@gmail.com <>> wrote:
>>>  
>>> What is minimum clearance from comms to Primary at the pole?
>>> 
>>> Sent from my iPhone
>>> 
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>> 
>>  
>> 
>> 
> 
> 
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