For those of you who have not started working with your electrician, I encourage you to watch this video.
Ok, I have watched this vid a couple of times now, and I am glad it is out there. It has good information and makes great points, but it also has some shaky information in it. It is best watched keeping in mind that Q-merit is trying to sell you something.
Claim: "Q-merit will do a better job than a different electrician."
False. I have seen them makes mistakes too. They are a quality installer, but they are not the
only quality installer.
Claim: "The 14-50 outlet was not made to be plugged/unplugged on a regular basis."
False. The 14-50 standard was created for RV parks, literally plugging and unplugging RVs on a daily basis. That said, RVs do not put the strain on an outlet that an EVSE does, so I do not recommend plugging/unplugging your EVSE every day from the outlet. Have a wall unit, keep your mobile EVSE tucked away in your vehicle until it is needed and let the J1772 connection take the brunt of the daily wear. It was designed for it.
Should you use a quality plug in your home? Yes.
Should you be afraid to plug your mobile EVSE into the campground 14-50 outlet that has seen thousands of uses over the years? No, but look at it to make sure it looks ok. Then put your hand on the EVSE portion of the plug after 15 minutes to see if it is getting too hot. Not a bad idea to check it again in an hour, if you are around. OR, use a Tesla mobile EVSE that has thermal sensors in the head of the plug, and will automatically back down the draw if it gets hot. Yes, another example of Tesla showing the way, how things should be done.
Some of the vids and case studies out there give you some information behind the melted gear that is sitting on the table. They do not do that in this video. Is that outlet a result of plugging an EVSE into it and
not de-rating it to <40 amps (the most common case)? I would say highly likely, making the argument that "this is what happens when you have somebody else install your equipment" rather deceptive.
Disclaimer:
Q-merit is a direct competitor of ours, so what applies to them applies to us. Do your due diligence.