Strut protection

[KWKloeber]

A couple points here for the sake of accuracy

First the attack on the bronze could certainly be due to galvanic corrosion ( if there was electrical conductivity) but "pinking" is more often associated with dezincification (chemical change,) which is a different animal and has no direct relationship to stray current.
Applying a less noble metal to the strut can prevent this.

Electrolysis is separating water into oxygen and hydrogen by passing a current through it (like what happens when charging a wet cell battery.).  Or is depilitating (killing hair roots) using a "zap".

What happens to metals on vessels is "galvanic corrosion", not "electrolysis."

K