Sophisticated marine electronics and instruments only operate at peak potential when supplied with power at the right voltage, which necessitates high-quality wire like Ancor's Primary Wire. Ordinary automotive-type wire can suffer a loss of conductivity after a few months in the marine environment. Corrosion takes place, and corrodes the copper conductor, when the wire’s jacket and insulation are compromised by water intrusion. Marine-grade wire from Ancor is rated for oily and wet environments because its jacket is impervious to those conditions. Each strand has a tin coating for extra corrosion resistance (note the “silver” look when you strip it).
USCG Charterboat (CFR Title 46)