Expensive mistake when installing 30-amp RV outlet at home

  RV Electricity with Mike Sokol Dear Mike, Thank you for bringing the miswiring issue to light. I have been a licensed journeyman electrician for over ten years, but when a customer asked me to install an outside 30-amp outlet for his RV in the driveway, I accidentally wired it up for 240 volts, NOT 120 volts. That was a... Read More

Is surge protector’s reading sufficient to be safe from “hot skin”?

  RV Electricity with Mike Sokol Dear Mike, Thank you so much for your discussion of “hot skin.” I recently got a shock touching my small trailer and found out I had a bad extension cord. A question: I use a surge protector between shore power and my trailer. The protector claims to detect lack of power, reversed polarity, open... Read More

Reader asks if new 50-amp outlet is wired correctly

  RV Electricity with Mike Sokol Dear Mike, I have a 50 amp outlet I had put in, and from either hot to the neutral it reads 120 volts, but measuring between both hots it reads 240 volts. Is this outlet wired correctly? —Craig Dear Craig, Yes, that’s correct. Most consumers don’t realize that we have 240 volts coming into... Read More

Prevent dangerous RV “hot skin” condition

  RV Electricity with Mike Sokol Dear Mike, We recently purchased a pop-up camper. We set it up in the driveway to check things out. My daughter got a shock when she was standing on the grass and touched the camper door. I checked it out and realized that the extension cord had a bad ground wire. I hooked up... Read More

RV electricity: Reader asks meaning of AC power

  Reader Question: Forgive my electrical ignorance but doesn’t “AC” mean “alternating current”? Does that mean that the hot and neutral wires are constantly reversing? Mike’s response: The “Hot” wire is also known as the “Line”, and it is indeed energized with 120 volts AC (in the USA). The Neutral wire is “bonded” to the earth ground rod(s) at the incoming... Read More