Good, great, EXCELLENT answer.
Bonding is the work of the Devil - avoid at all costs. Imho.
Bonding is not used, afaik, at all, in Europe.
Many boatyards in europe are well known worldwide for the quality of their work, in all size and cost ranges.
Thus we can probably safely conclude, from millions of examples, over a long time, that boats without bonding work well.
Bonding can also be a good choice - given that lots of US boats work well.
However, well done bonding is complex, in that very easily one or more fo the wires or connectors fails over time-and there is no easy way to know when this has happened.
Lots of examples exist, and probably about or nearly 100% of all old boats have bonding issues.
Both the EU codes and the abyc codes seem to conclude that bonding may or may not be used.
Abyc is then concerned with how to do the bonding.
I would opine that bonding ads cost and complexity, and work, and not bonding is also a good option.
I would also opine that of those marin pros who prefer bonding, derive significant money from all the work and bits and pieces used to do so.
Thus they have a largish vested interest in support such a scheme.
It is perhaps instructive to ask them, why european boats dont bond, and what is wrong with not doing so.
Here's my interpretation of the relevant ABYC standards.
E-11.16.1 Allows, but does not require, a DC grounding system to be installed.
E.11.16.25 If a DC grounding system is installed, it is allowed to be, but not required to be, combined with the lightning protection, cathodic bonding, and static electricity grounding systems.
E.11.5.4.7 Requires the AC system grounding bus to be connected to either the engine negative bus, or the DC main negative bus.
E.11.5.7.4 Allows, but does not require, the negative side of the DC system to be connected to be connected to ground.
TE-30 Requires that the propulsion electrical system remain isolated from the boat's grounding system.
-Tom
-- -hanermo (cnc designs)
Posted by: Hannu Venermo <gcode.fi@gmail.com>
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