On Thu, 6 Aug 2020 17:32:43 -0700 (PDT), Theodore
wrote:

Still without power in my neighborhood after storm, but my generator is running. My neighbor lives 225ft away from my generator and is completely without power.

I have:

1. one 12gage-100ft long extension cord
2. one 16gage-100ft long extension cord
3. one 16 gage-50ft long extension cord.

Is there anything I can offer that would be SAFE to do so? The voltage drop would be considerable for such a length, and I'm sure would kill any appliance like her refrigerator. But is it possible to say "hey, you can plug in ...your phone charger and a lamp and maybe a fan" ? (until I shut down at 11:30PM).
Just trying to be helpful/neighborly.
Theodore

Have him buy a 250' roll of 10ga Romex.
It is legal for "temporary" wiring (a concession to the building
industry)
If you are interested I could run a voltage drop calc but there are
calculators all over the internet. Do it in 2 steps, 100" of #12 and
150 of #16 and add the drop together.
For some small loads it will work tho. I ran 2 condos on an extension
cord, Fridge, TV and a light or two. They were #12 tho. I had a cube
tap at the 1st 100' for one condo and the other end went into mine. He
had a 25' 16ga orange cord to the fridge and a 16ga zip cord for the
TV and light at the 1st condo.