Quick Guide (pdf).pdf

DC Positive Conductor, Positive Mains
- Black or Yellow: DC Negative Conductor, Return, Negative Mains
- Green: DC Grounding Conductor, Bonding System
- Light Blue: Oil Pressure, Oil Pressure Sender to Gauge
- Dark Blue: Cabin & Instrument Lights, Fuse or Switch to Lights
- Brown: Generator Armature, Generator Armature to Regulator
- Grey: Navigation Lights, Fuse or Switch to Lights
- Orange: Accessory Feed, Ammeter to Alternator or Generator Output and Accessory
- Pink: Fuel Gauge, Fuel Gauge Sender to Gauge
- Purple: Ignition, Ignition Switch to Coil & Electrical Instruments
- Brown w/ Yellow Stripe: Bilge Blowers, Fuse or Switch to Blower
- Yellow w/ Red Stripe: Starting Circuit, Starting Switch to Solenoid
- Tan: Water Temperature, Water Temperature Sender to Gauge
- Green/Stripe (G/x): Tilt Down and/or Trim In, Tilt and/or Trim Circuits
- Blue/Stripe (Bl/x): Tilt Up and/or Trim Out, Tilt and/or Trim Circuits

Using 'regular wire' for boats is possible if it's SAE J378, J1127, or J1128, but with limitations. SAE wire is up to 12% smaller than AWG Boat Cable, requiring larger gauge wire in many applications. Marine Grade Boat Cable by ANCOR is UL approved for the corrosive marine environment and charter boat service, exceeding test standards for cold bend, moisture, oil resistance, heat shock, and flammability.

Tables provide conductor sizes for 3% voltage drop at 12, 24, and 32 volts, with current and length considerations. A formula (CM = K x I x L / E) is given to calculate Circular Mil Area for conductor sizing, with K = 10.75, I = current in amps, L = length in feet, and E = voltage drop at load.