Home |
Search |
Today's Posts |
#8
posted to rec.boats.electronics
|
|||
|
|||
More Breaker Panel Mess
Larry, it is quite difficult to prevent your "independent" DC system
from being connected to the AC ground bus. Like it or not, it is probably connected through the water, providing an opportunity for a potential difference between your DC ground system and the grounded case of an AC appliance. An improperly wired boat in the next slip can cause real safety problems aboard you vessel. You can safely isolate your system from the galvanic couples you fear with an isolation transformer or a galvanic isolator. I know you are well aware of both. You can also isolate your underwater metal (prop, shaft, etc.) from both the AC and DC ground systems, which may be what you meant to suggest. Chuck Larry wrote: Marc wrote in news:ufm1p1h2l7qr8s8vs3vbso6j1so1l3apgr@ 4ax.com: Having disconnected and labeled all the 12 V wiring, the 110 AC is now visable. It appears that all the AC ground wires (green) are run to a common buss. But , then, the AC Ground buss is connected with a 6 ga. wire to the DC negative buss. This doesn't seem right to me. Is it? They do this to insure your engine, underwater propulsion gear and everything hooked to the DC ground system is connected to every other stupid boat and the marina's big earth ground system, making one HUGE battery out of those zincs you can't figure out why they disappear so fast. There's absolutely NO reason why the independent DC system should be connected to the AC ground bus I know of. Ours isn't. I'll be damned if I'd pay with MY zincs to protect your prop because my zincs are hooked through the AC wiring ground to your zincs..... Oh, hooked up like that, too, your zincs are protecting the whole electrical system of HIS marina any place it touches the water or makes contact with the earth. Aren't you being, inadvertently, nice....(c; |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
The Solar Panel Simulator! | Cruising | |||
The Solar Panel Simulator! | Electronics | |||
Breaker Panel Mess | Electronics | |||
Control Panel design logic? | Electronics | |||
I bet this guy doesn't mess with me again. | ASA |