exhdo1
I am installing a 16KW Generac with the 16 circuit RTGEZA1 transfer switch. Due to HOA restrictions, I cannot place the generator on the side of my home where my electrical panel is (setback rules). I would have much rather run the gas line to that location. This situation forces me install the generator on the opposite side of the home. The distance between the generator and my service panel (where I intend to install the transfer switch next to) is aprox 80 feet. Perhaps someone in the forum can point me towards a wire size calculator or chart so that I can determine what gauge wire that I'll need to run. Thanks
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Brian Baughman
Table 310.15(B)(16) in the NEC
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grsthegreat
How far away from gas source (ie meter or regulator) will you be. This has a huge inpact on operation of this generator.
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RD35
If you are running #4 copper you should be fine out to about 100ft away if you want the drop on that feeder to stay below 2% (or 4.8V)
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exhdo1
grsthegreat wrote:
How far away from gas source (ie meter or regulator) will you be. This has a huge inpact on operation of this generator.
Less than 10 feet.
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exhdo1
RD35 wrote:
If you are running #4 copper you should be fine out to about 100ft away if you want the drop on that feeder to stay below 2% (or 4.8V)
Thank you.
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exhdo1
Table 310.15(B)(16) in the NEC
I've seen online charts that are similar (probably copied from the NEC table). I was curious about the distance (80 feet from generator to transfer switch) and if that will have any effect on wire sizing. Thanks for getting back to me.
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Geoff Z
You can consider the Generac Generator Wire. It has every conductor you need between the generator and transfer switch. A little more expensive but a dramatic time/labor savings. 

https://www.zillerelectric.com/collections/generator-wire/products/12-16-kw-generac-generator-wire?variant=1631923109914
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Geoff Z
exhdo1 wrote:
I've seen online charts that are similar (probably copied from the NEC table). I was curious about the distance (80 feet from generator to transfer switch) and if that will have any effect on wire sizing. Thanks for getting back to me.


Voltage drop is a non issue at 80’
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exhdo1
Geoff Z wrote:
You can consider the Generac Generator Wire. It has every conductor you need between the generator and transfer switch. A little more expensive but a dramatic time/labor savings. 

https://www.zillerelectric.com/collections/generator-wire/products/12-16-kw-generac-generator-wire?variant=1631923109914
Thanks
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JayH
Geoff Z wrote:
You can consider the Generac Generator Wire. It has every conductor you need between the generator and transfer switch. A little more expensive but a dramatic time/labor savings. 

https://www.zillerelectric.com/collections/generator-wire/products/12-16-kw-generac-generator-wire?variant=1631923109914


+1. This greatly speeds installation and makes for a very clean setup.
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exhdo1
Thanks, that's what I need, properly sized wire. On a side note I'm trying to find the correct wire size that goes from the ATS 200 transfer switch to my service panel (200 amp). They will be mounted side by side, so the total wire length would be less than 10 feet.
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Geoff Z
You will need 4/0 aluminum SER (4 conductor) cable between the transfer switch and your service panel.
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