Thursday, January 3, 2008

Corrosion Protection

Oops, forgot one:
  • Galvanic Isolator. When the boat is connected to shore power (as ours always is), stray current flows through the AC ground and the DC bonding system. This current can really cause the zinc anodes to dissolve away quickly. An isolator blocks low voltage in the green AC ground wire, but passes higher voltages through if there's an electrical fault.

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