outlet voltage drop

[Tom Del Rosso]

I have a toaster oven and a microwave in the same outlet. A couple of
window fans are running on the same breaker.

If the toaster oven is on, the voltage at the outlet drops about 4 volts.

If the microwave is at half power (it's a 1300W unit) the drop is about the
same.

Is this typical, or is it a sign of too much resistance somewhere, which
would be getting hot?

 

[Winston]

In addition to what Michael and Jeff said, I
suggest inspecting the outlet and every outlet
on that circuit from the breaker onward.

Please replace any outlet that is installed
using the 'backstab' method:
http://www.rd.com/images/tfhimport/2004/20041101_Dead_Outlet_page005img001_size2.jpg

At the very least, remove the stabbed wires, clean
them and then use the screw terminals instead.

--Winston