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This is a very good question for it is about electrical safety in a vehicle. Yes, you need to ground the inverter to the body of the vehicle. The inverter can be mounted directly to the metal of the truck body, but the paint would have to be removed at the mounting points. A wire can also be...

In my opinion you should have GFCI on your setup. You will be using it just as one uses a gasoline generator when camping or out flying R/C planes. As I see it, 120 Volts from a gasoline generator is exactly the same as 120 Volt from an inverter and 24 Volt DC. There are GFCI requirements for...

What appliances are you going to plug into the "NEMA 5-15 sockets" and where will they be? GFCI protection is not required because something is an appliance. Other things are considered. You state you have a portable box, this is for a specific use? Back up power when the grid goes down...

Electric dryers with 3 wires have the neutral bonded to the frame of the dryer, this provides grounding of the dryer. The neutral wire has a dual purpose. The code was changed many code cycles ago, so all new dryer circuits from the panel to the receptacle, need a separate ground wire, for a...

Most if not all of the inspectors where I use to work in Chicago and surrounding areas would never approve of someone making an AFIC, or any equipment for that matter. One can not simply take UL listed parts, assemble them and expect it to be approved for use. I have seen this happen with...

DIY install can be compliant as long as the install meets code, using listed equipment and has been inspected. How many DIY are not compliant, I have no idea. The 80 volt rule only applies to NEC 2017 for on roof installations and conductors that enter a building. If you are under 2014 code you...

The NEC does not require optimizer or micro-inverters. They are just are ways to meet the requirements of rapid shutdown. If those are the only 2 ways to meet the requirement, then that is you only choice. The code doe not state how it is to be done, as long it is a listed system.

This code became a requirement for one reason only, to protect firefighters The equipment to meet the rapid shutdown requirements must be listed. Which means coming up with a DIY solution would not meet code. I do wonder why the use of relays does not seem to be a solution. I have read from...

There are transformers that are 120 volts primary and 120/240volt secondary.Such as this one. They do come in higher and lower ratings. Something to keep in mind when looking for a transformer, and using it for a voltage other than what it was built for. The rating of it will change. An...