What is the maximum distance allowed between the main shore power disconnect circuit breaker and the shore power inlet before additional protection is needed?

The maximum distance allowed between the main shore power disconnect circuit breaker and the shore power inlet is specifically set to ensure safety and minimize electrical hazards. When the distance between these two components exceeds a certain limit, additional protection may be necessary to prevent risks such as electrical fires or electrocution.

In this context, the correct response of 10 feet reflects the standards indicated by the National Electric Code (NEC) and the American Boat and Yacht Council (ABYC). If the distance is greater than this limit, it typically requires additional protective measures, such as more stringent circuit protection devices or different wiring standards, to reduce the risk of overcurrent and ensure that the system can handle faults safely.

Choosing a distance of 10 feet is an accepted standard that balances the practical installation requirements with safety protocols. This distance helps ensure that the wiring can support the necessary current load while maintaining a margin of safety against potential hazards. Understanding these limits and requirements is crucial for compliance with regulations and for ensuring safe electrical installations on boats.