Electrical equipment of the Singapore floating dock

This paper gives an account of the electrical equipment of the Singapore floating dock, designed by the Admiralty and built by Messrs. Swan, Hunter, and Wigham Richardson, Ltd., of Newcastle-on-Tyne. The dock, which is now completed, is one of the largest in the world, and has been built in record time. Its transfer to Singapore presents an important towage problem. The electrical equipment includes:¿ A 1000-volt 3-phase a.c. system for main generation and pumping. A 220-volt 2-wire d.c. system for auxiliary generation, lighting and power. A 20-volt, 2-wire d.c. system for control of dock operations. A complete telephone system, with central exchange. Provision for supplying ships in dock with electrical energy for lighting and power. Provision for supplying submarines in dock with electrical energy for charging the large storage batteries, etc. The paper gives a brief description of floating docks and the conditions to be met. Reference is made to earlier docks, and a description is given of the complete electrical installation of the 50 000-ton dock now built for Singapore