I have a 50Amp to 15/20Amp T-Blade extension cord. Here is the link.
The 50Amp end is plugged into an unused Stove outlet.
When I plug in a surge protector the extension cord does not seem to work. The 3-prong surge protector does not have a T-blade connector. I also tried plugging in 2-prong fan, but this doesn't work either. No household device that I tried works.
If I use a Voltmeter I see 118VAC at the end of the extension cord. When I plug in the surge protector the protected and grounded lights both turn off. These lights are normally on when plugged into a standard wall outlet. However, I see 118VAC when I plug the voltmeter into the surge protector outlets.
Am I wrong to expect to be able to plug in household devices to this extension cord?
Does the device need to have a T-blade connector?
UPDATE: The measured voltage between the 50A socket ground and a nearby 15A socket ground is 0.01V.
@brhans is right. When I measure between the T and the straight it is 105V (nothing plugged in) and changes to 240V (w/ fan plugged in).
I am assuming that he is also correct that a neutral line is missing.
What is the correct way to fix this?