What is the CPD protection against?
Prevention of wire conductor overheating and resultant burning of the wire insulation is the primary reason to install a fuse or circuit breaker. In some cases they are also installed to protect electrical or electronic equipment from damage. How does fire start in an electrical circuit? Fire results when too much amperage travels through a wire. Amperage is electron flow through a conductor. If too much amperage flows through a wire, enough heat can be generated to melt and burn the wire insulation or surrounding materials. How much amperage can a wire safely conduct? The American Boat and Yacht Council (ABYC) publishes the following table showing how much amperage each size wire can carry: Is “Allowable Amperage” the only thing to be considered in sizing a wire? No. Voltage Drop must also be considered. Voltage Drop is the amount of voltage “consumed” as the voltage “pushes” the amperage through the resistance of the wire. Sometimes Allowable Amperage will be the determining factor i
