Summary

This is a technical drawing set for a Cathodic Protection System for the 154FT Fast Response Cutter vessel, produced by the Office of Naval Engineering. The documents contain detailed schematics and specifications for the system's electrical components, including anode details, shaft grounding details, reference electrode configurations, and automatic power supply/controller arrangements. The drawings illustrate the complete cathodic protection architecture with multiple junction boxes, anti-fouling anode ports, reference cells, and grounding systems distributed throughout the vessel's engine room, auxiliary spaces, and external hull locations.

The material list and general notes on the first page specify the components required for system installation, including cables, connectors, junction boxes, and electrode assemblies. The drawings indicate specific locations for port and starboard steering gear rooms, fuel oil storage and service systems, and auxiliary machinery spaces. Technical specifications address cable grounding requirements, electrode spacing, and proper interconnection protocols between the automatic power supply controller and multiple anode reference points. The system is designed to prevent corrosion of the vessel's hull and internal structures through controlled impressed current cathodic protection distributed across port, starboard, and auxiliary reference cells positioned at critical locations throughout the vessel.