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mustanglover32's avatar
mustanglover32
Explorer
Feb 14, 2017

Running A/C with extension cord into 20 amp outlet.

Trying to figure out if what I'm trying to run below is moving too close to the limits of a 20 amp 120V outlet and limits of a 12 gauge extension cord that is 25 feet. Trying to run a 135K BTU A/C ...
theoldwizard1's avatar
theoldwizard1
Explorer II
Feb 14, 2017
mustanglover32 wrote:
Second Question: Should voltage drop be a concern, since there is approximately 40-50 feet of cable (travel trailer wiring + extension cord) between the outlet and the AC.

Yes, you should be concerned.

time2roll wrote:
Verify running voltage is 108+ inside the RV and check for excessive heat at the connections.
Otherwise you are good to go.

I would be happier if it was >110V.

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