I’m so confused. Everybody tells a different story on this. I read on a Victron page somewhere that you should have one large chassis ground from a lynx distributor and all other elements should have equipment grounds to the same point but NOT on the lynx side.
I was going to run a 4/0 ground from the lynx 5th stud to a solid chassis point at which point I would bolt a 1”X 1/4” copper bar to the same to attach the rest of the equipment grounds to the bar… sounds like a lot but is that right?
As you say right is in the eye of the beholder. It also doesn’t help tha between mobile and fixed installations there is a difference and then add local regulations that are all different.
And the difference between earth, chassis and ground…
A common connection point makes sense as you described.
And this is what you see in all the examples
I read that exact passage earlier on a post I clicked while searching this topic. I am specifically trying to figure out how to ground to the chassis of a big off-grid bus. I know the multiplius IIs will handle the ac ground but what I read about the equipment grounds specifically goes against what my supplier recommends so I’m at odds with the guy who I depend on for support. Kinda bothersome. To add to it, I’m actually a pro in 240v split phase and a semipro in 12v vehicle but where they meet I lost confidence. I really want to do it either RIGHT or to manufacturer specs so I can maintain warranty.
Clean a spot off and bolt it to the frame of the vehicle. Is this for the DC side? But you need to make sure then all the spots where negatives are to the frame have good cobtact and are protected from corrosion.
The only other option it to run cabling back to the main negative of the battery.
Maybe think of the reason of what you are trying to do?
Is it to protect against stray ac on a chassis of a piece of equipment?
It is a huge topic to get to grips with.
Yes, it’s for DC equipment grounds. I think I’ve got it now. 4/0 from lynx distributer center stud to solid, clean chassis point(my connection point is on stainless steel luggage bay floor that is welded into the stainless underbody) I’ll bolt the 4/0 to the stainless thru a 1”x1/4” copper bar with holes tapped for other equipment grounds. Each multiplus II 48/5000 gets a 2/0 equipment ground and the 250/70 MPPT gets a 2awg ground, all to the copper bar.