Re: Planning to convert a 6x12 cargo trailer.
Posted: Sat Mar 12, 2022 8:34 am
I understand. I did use Chassis return for my system. All DC circuits return through the Chassis. If the frame is welded as it is and good connections are made with washers that bite into the steel, it will be and is very reliable. The other way works fine too just more cost and wire management.
I chose Chassis return ( which is not ground technically) as it saves alot on wiring which is expensive. I have alot of circuitry and just the actual wires themselves would take too much space in the chases and to manage in the electrical area. Automobiles use Chassis return for this reason also. Ground is often a term misused in this application. I do it myself all the time.
To be clear however, the chassis is not ground like "earth ground". It is just the return to negative side of battery in DC applications.
In 110vac applications, the neutral is the return and "safety " ground should be grounded to earth. The purpose is for safety when bonded properly to the neutral.That connection is made through the shore power panel at the campground where it is bonded to nuetral. Your AC safety ground should connect to your Chassis in the CTC so it never can become hot due to a wire shorting. The connection of AC ground to Chassis in the trailer is to ensure the Chassis stays at Zero volts AC and GFCI breakers pop as they are suppose to so nobody gets hurt.I use GFCI throughout the CTC for all outlets. I treat it as an outside appliance that could get wet.
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I chose Chassis return ( which is not ground technically) as it saves alot on wiring which is expensive. I have alot of circuitry and just the actual wires themselves would take too much space in the chases and to manage in the electrical area. Automobiles use Chassis return for this reason also. Ground is often a term misused in this application. I do it myself all the time.
To be clear however, the chassis is not ground like "earth ground". It is just the return to negative side of battery in DC applications.
In 110vac applications, the neutral is the return and "safety " ground should be grounded to earth. The purpose is for safety when bonded properly to the neutral.That connection is made through the shore power panel at the campground where it is bonded to nuetral. Your AC safety ground should connect to your Chassis in the CTC so it never can become hot due to a wire shorting. The connection of AC ground to Chassis in the trailer is to ensure the Chassis stays at Zero volts AC and GFCI breakers pop as they are suppose to so nobody gets hurt.I use GFCI throughout the CTC for all outlets. I treat it as an outside appliance that could get wet.
Sent from my SM-N970U using Tapatalk