So I've got a "Member of the Shadetree Electricians Union" hat that I'm wearing this week.
Just got this awesome new compressor. Much larger than my previous tire pump and needs 220-240.
I've got two 240 circuits shown in the box.
One is a pair of ganged 20amp breakers that goes to a socket in the diningroom as well as to a bedroom.
The shape of the wall socket is the 20 amp -.- shape in both rooms. I think the PO ran them for a tanning bed for the wifey.
The other is a pair of ganged 40amp breakers but I've never found that they power anything. They may just be stuck in the box and not utilized.
But this compressor needs min 22amps. So I was going to set it in the garage and run a 25ft extension cord to the dryer outlet in the adjacent utility room. I'm a single guy now and I don't use a dryer much so, meh... should work fine right? I know the dryer runs ganged 30amp breakers and the door out to the garage is always open because it's heated and cooled anyway.
So here's the problem:
1. I'm looking at the plug ends at the local HW stores and not one of them has just a loose plug that fits this dryer socket.
2. In the research I'm seeing that Dryer cords that are available off the shelf have the two slanted 120 lines but that return line has a L shape to it as does my dryer's wall socket.
3. RANGE cords that are off the shelf items are also 30 amps and have the two slanted 120 lines but have a ROUNDish hole for the return.
4. No matter if you buy a Dryer cord or a Range cord, they're not locally available longer than 6' and I need 25'. At least for a while.
So this all tells me that I may be trying to do something ill advised.
But I'm not convinced and I don't get WHY the hole for the return lug would be different for a dryer vs. a range if both operated at 30 amps.
I do understand that there are 3ph vs. single phase considerations but the compressor is a single phase unit.
Shouldn't a simple dryer motor also be a single phase? I think they need the 30a 220 mostly for the heat.
I'm poking around online now to try and find just a plug but 25' of 10/3 rubber cable is $75 here locally.
I don't want to blow $100 to build a cord that's gonna jack up the new compressor OR burn down JeepNut's Garage...
Whose our electrician here?