I know absolutely nothing about electrical wiring and I'm not even sure this is the correct place to post this. I didn't know where else to post but I figure someone here should be able to help. So, sorry for any inconvenience.
Is there a way I can safely test whether an outside electrical outlet in the shed is grounded? I'm sure at one point it was grounded but some wires were accidentally cut/dug up and now it's all hooked up a bit differently. From what I was told is that the underground wires were cut and now the two "live" wires have been inserted into a heavy duty outside extension cord which plugs into an outlet in the garage. The third or grounding prong on the extension cord has been broken off or was never there to begin with. When the plug on the extension cord got wet once it apparently kicked the breaker because the outlet in the shed wouldn't work. Another time something happened where the outlet wouldn't work and the GFI outlet in the master bathroom in the house had to be reset.
Basically, I need to use the outlet in question to plug in a heated pet pad for the stray animals since it's been really cold around here lately. Before I do that I want to make sure the outlet is grounded in case the pet pad shorts out or something, I don't want the animals to get electrocuted. I know the pad says it's best to plug it into a GFI outlet but is there something I could use in place of that, like a surge protector perhaps? That is, assuming the outlet is grounded.
Thanks, Mike