AC/DC Grounding Question

[mermike]

@FastOlson , the AC ground bus should be connected to the DC ground bus.

From ABYC E-11:
11.5.2.7 DC System Negative Connections
11 .5.2.7.1 If an alternating current (AC) system is installed, the main AC system grounding bus shall be connected to
11.5.2.7.1.1 the engine negative terminal or the DC main negative bus on grounded DC systems (see FIGURE 10) or
11 .5.2. 7 .1.2 the boat's DC grounding bus in installations using ungrounded DC electrical systems.

As @Davidasailor26 explained above, it's to ensure an efficient return to ground in case of a fault.

 

[Roland5048]

11 .5.2.7.1 If an alternating current (AC) system is installed, the main AC system grounding bus shall be connected to
11.5.2.7.1.1 the engine negative terminal or the DC main negative bus on grounded DC systems

Thank you @mermike. Took another look at the wiring yesterday. It is exactly as described above. Wire connects from the AC grounding bus to the DC negative bus. Been like this since I rewired and built the breaker distribution panel using Blue Sea breakers some twenty plus years ago. Each AC circuit, port and starboard, have a GFCI outlet at the beginning of the circuit. Like I wrote earlier, I have had no problems until I had to lower the panel and then I started second guessing myself.

The static is probably due to the charger, especially if it is an old style charger with a transformer. Your batteries will be happier and your stereo quieter if you invest in a modern 3 stage charger.

My charger is a ProMariner Pro Sport 3 bank 3 stage. Static only occurs during charging phase which, while annoying, isn't really an issue as I'm only hooked to shore power about 2 days a month.

Perhaps sailing more would take care of that time problem.
Now that is some advice I can live with.

Again, thank you all.