ENGLISH 28-04-2020 12/97 DUFOUR 530
III. ELECTRICAL SYSTEMS
Safety and operating instructions for the electrical system
WARNING
Improper use of the DC and/or AC systems may give rise to fire or explosion hazards.
Improper use of the AC systems may give rise to electrocution
hazards.
Always:
● Check the condition of the batteries (charge and electrolyte level) and the charging system
before putting to sea.
● Disconnect and remove batteries for wintering.
● Do not let battery voltage drop below 12 V during wintering.
● Carry spare bulbs for all navigation lights and interior lighting.
Respect power ratings, particularly for navigation lights.
● Check the operation of navigational instruments.
● Check the operation of navigation lights before sailing at night.
Never:
● Work on an electrical installation under voltage.
● Modify an installation or the relevant layouts, unless performed by a qualified naval electrician.
● Change or modify the circuit breaker capacity of protection devices.
● Replace the devices or electrical equipment by elements that exceed the prescribed capacity
without recalibrating conductors and protection devices.
● Leave the boat unattended when the electrical installation is under voltage, except for an
automatic bilge pump and protection circuits against fire or theft.
If a fuse or circuit-breaker trips repeatedly, you should consult a specialist to determine the cause of
the short-circuit.
Fitting new equipment
Since 1 January 1996, electrical equipment is subject to the European Directive on ''electromagnetic
compatibility'' (Ref 89/336/EEC). It is therefore necessary that any new equipment you may wish to
install meets the requirements of this standard and bears the CE mark. Equipment must also be
supplied with a compliance certificate and instructions for use.
In the case of 220 or 110 V installations, use only double-insulated or earthed equipment. Respect
the instructions for installation when installing these devices (wire gauge, protection).
To avoid maintenance problems, note any modifications to the electrical layout in the manual.
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