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Marine electrical systems require careful design to manage lightning strikes, corrosion, and battery safety. Lightning protection systems cannot prevent damage to electronics during a direct strike, as massive voltage spikes can destroy wiring, cabinets, and all onboard electrical components.18:34 To mitigate shore-power-related surges, some cruisers store sensitive electronics in a Faraday cage, such as an oven, during storms.45:20 Regarding corrosion, high-end silicon bronze through-hulls generally do not require bonding, but DZR (dezincification-resistant) brass fittings common on modern European boats must be bonded to a sacrificial anode to prevent structural failure.53:16 Bonding connections should use secure terminals rather than hose clamps.56:41 When installing lithium battery banks, the system must be treated as an integrated energy storage unit rather than a simple battery replacement, ensuring the BMS actively controls all charging devices to prevent alternator damage.7:37 Proper education on these systems allows boaters to assess the quality of work performed by technicians and maintain safer, more reliable vessels.26:06

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