120V Converter Grounding Question ??????
I recently replaced my 20 year old Centurion Converter with a Progressive Dynamics 4700 series unit. ......In a truck camper, should the 120vAC ground buss bar from the converter be connected to t...
Forum Discussion
westend wrote:
The converter 120 AC should be grounded through the ground wire in the supply wiring. If you wish to ground the chassis separately there is nothing bad about that but the chassis of the converter and the circuits are all connected inside the converter to supply ground.
I also commented in your other thread about using copper pipes as a ground plane, not best practices.
You should establish a new ground point for your electrical service.
The problem with using the converter's AC supply cord as the ground is wire size. The supply ground is connected to the case of the converter. Code requires a minimum of a #6 wire between the case of the converter & chassis or frame of the RV. Not sure on a truck camper, but if there is a fault on the 12V side of the converter to the case, enough current could flow to melt the supply cord ground (which, of course, is unfused). This is the reason for the #6 wire to the frame/chassis.
