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Electrical Outlet Types You May Need to Know About

This is a good article for travelers, but it just scratches the surface of plugs and receptacles. In the US, I refer to the NEMA (National Electrical Manufacturers Association) standards.

In the US, plug/sockets have MANY configurations based on Phase and Amperage:
NEMA-general.jpg


And that's just non-locking plugs, here are the locking varieties:
NEMA-locking.jpg


Those of us with EV's and RV's are familiar with NEMA-5-15P/R, NEMA-6-20P/R, NEMA-10-30P/R, NEMA-14-30P/R and NEMA-14-50P/R

I have a "dangerous" NEMA-6-20P (220 VAC) to a NEMA-5-15R (125 VAC) extension cord. Why? Because the "110 VAC" portable charger for the Chevy Bolt EV is a world charger that they just put a different plug on based on the location of the sale. So the electronics can handle US and European voltages. I have a 220 VAC ac unit in the sunroom right next to the driveway where I park the Bolt EV and I can charge it at twice the rate off that circuit.
 
Why Do Electrical Prongs Have Holes in Them?


home.howstuffworks.com

Why Do Electrical Prongs Have Holes in Them?

If you unplug any appliance in your house, there's a 98 percent chance than the two flat prongs have holes in them. Find out the reasons for these holes.
home.howstuffworks.com home.howstuffworks.com
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Richard
 
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