Wire Conductor Size

What size wire do I need? . Use 3% voltage drop chart  for any “critical application” affecting the safety of the vessel or its passengers: bilge pumps, navigation lights, electronics,etc Use 10% voltage drop chart  for any “non-critical” applications: windlass, cabin lights, etc... Important! Length (feet): Determined by measuring the length of the conductor from the positive (+) power source connection to the… marincofaq.wordpress.com