Requirements for electrical installations, cables and communication
The electrical installations in the sonar room must meet minimum requirements to provide suitable lights and supply power.
Light requirements
The sonar room must be equipped with suitable lighting to simplify the installation and to aid future maintenance.
Communication requirements
The sonar room must be equipped with a telephone, an intercom system, or any other means of oral communication between the sonar room and the bridge and/or control room(s).
Power requirements
Each unit in the sonar room should be provided with a separate circuit breaker on the mains supply.
A minimum number of additional electrical outlets must be provided for other equipment.
Proper vessel ground must be provided.
Cabling requirements
The sonar room units are connected to other MS70 units located in different compartments on the vessel. The units may also be connected to peripheral devices. If these cables pass through hatches or areas where they may be damaged, they must be run in conduits. Minimum 2” conduit is recommended.
Make sure that all system cables are properly connected and secured, and installed with some slack. The slack is essential to withstand vibrations, and to facilitate future maintenance and replacements.