30 amp extension cords

I have two 30A 25-foot extensions connected to my 25-foot cord coming from my trailer. Works good for the somewhat 75-feet of extension cord here at the house.

I would always keep checking the connections however to make sure they was making good connections and not getting hot on you...

Roy Ken

ScottG wrote:
Do you mean "chain" 2 or 3?

Yes, sorry about that - I edited the message just now.

DarkSkySeeker wrote:
I see a 50 foot 30 amp extension cord at a local store. It has 10 gauge wire. Can I safely daisy change 2 or 3 of those?

Of course you can, you just need to be aware of you're unloaded source voltage, cable length and gauge, load, and therefore total voltage drop. Here's a handy Voltage Drop Calculator that will provide the answers you need. I carry 140' of 10 gauge cable as runs to the campsite power post can be awfully long here in Ontario. No worries as long as you know what you're doing. ;)

By the time you go three I would sooner roll my own at the custom length you need if this will be a frequent stop. For heavy use consider #8 wire, for light usage #12 might be fine.

Do you mean "chain" 2 or 3?
It would be iffy and you might find elevated temps or voltage drop at the connections if running a heavy load like AC.
If this were house wiring, you can run about 100' of 10 awg before you need to up the wire size.