ENGLISH June 2021 IND B
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CATANA SAS - Zone Technique du Port - 66140 CANET EN ROUSSILLON (FRANCE)
e - mail : [email protected] - Tel 33 (0)4 68 80 13 13 - Fax 33 (0)4 68 80 13 19
3. ELECTRICAL SYSTEMS
(Plan n°7)
3.1. Safety advice and use of the electrical system
WARNING
Incorrect use of the direct current or alternating current systems can result in a risk of fire or
explosion.
Incorrect use of the alternating current system can result in the risk of electrocution.
Always:
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Check the battery state and the charging system before putting to sea.
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Disconnect and remove the batteries when winterizing the boat.
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Maintain the voltage of the batteries at over 12V during the winter.
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Check the functioning of the navigation instruments.
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Always keep spare fuses on board for the power circuits.
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Check the functioning of the navigation lights before sailing at night.
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Have the electrical system checked at least every two years.
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Disconnect the vessel’s electrical supply if the system is not in use.
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Connect any metallic covers of electrical equipment to the vessel’s earthing system (green
cable, or green with a yellow stripe).
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Use electrical equipment which is either double-insulated or has an earthing connection.
Never:
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Work on a live electrical installation.
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Modify an installation and the relevant wiring diagrams, unless this has been carried out
by a qualified marine electrician.
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Change or modify the breaking capacity of the protective circuit breakers.
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Replace electrical apparatus or equipment with components which exceed the rated
capacity without resizing the cabling and circuit breakers.
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Leave the vessel unattended when the electrical system is live, with the exception of an
automatic bilge pump and fire or theft protection systems.
The electrical circuit is protected by circuit breakers fitted in electrical boxes installed beneath the chart table
(figure 1).
If a fuse or a circuit breaker continues to trip, call a specialist to determine the cause of the short-circuit.
Other equipment (interior lighting, comfort equipment, etc.) is protected by fuses under the chart table.
To change a fuse, switch off the electrical circuit using the battery master switch, remove the defective fuse
using the appropriate tool, install a new fuse of the same type and the same amperage, and then switch the
electrical circuit on again at the battery master switch.
