BS EN ISO 13297:2021+A11:2023 ISO 13297:2020+A1:2022
14 Ground-fault protection/earth-leakage protection, AC systems 14.1 RCDs shall be of the trip-free type.
14.2 The craft shall be provided with earth-leakage protection in all AC (e.g. shore power, inverter, generator) sources by one or more double-pole RCDs having a maximum nominal trip sensitivity of 30 mA and 100 ms maximum trip time.
NOTE
and IEC 61543:1995[10]. 14.3 The RCD device shall have an internal circuit for manually testing the trip function.
15 Panel boards (switchboards), DC and AC systems
15.1 The front side of panel boards, i.e. the switch and circuit breaker operating face, shall be readily accessible. In DC systems, the rear side, i.e. the terminal and connection side, may be readily accessible, in AC systems the rear side shall be accessible.
15.2 Panel boards shall be permanently marked with the system voltage and frequency. EXAMPLES
230 V, 50 Hz; 115 V, 60 Hz; 12 VDC.
Electrical controls required for operation of the craft (e.g. horns, navigation lights) should be apparent to the operator when in normal use.
16 Panel boards (switchboards), AC systems 16.1 An AC system panel board with a means of indicating the system on/off status shall be installed.
16.2 A system voltmeter shall be installed on the panel board if the system is designed to supply motor circuits or if an onboard generator is installed.
16.3 A visible means, i.e. voltmeter or lamp, indicating that the inverter is active on line and/or in standby mode, shall be provided at the AC panel board.
16.4 A warning label shall be placed at the panel board to indicate that the electrical system includes an inverter. For example:
WARNING — ELECTRICAL SHOCK HAZARD Craft is equipped with a DC to AC power inverter.
To avoid serious injury or death from electrical shock:
disconnect AC shore power and DC battery power to inverter before opening panel or servicing electrical systems.
17 Conductors, DC and AC systems
17.1 Conductor insulation temperature ratings in engine spaces shall be 70 °C minimum, and the conductor insulation shall be oil-resistant or shall be protected by insulating conduit or sleeving. The conductors shall be derated in an allowable current-carrying capacity in accordance with Annex A.
NOTE For additional conductor specifications, see ISO 6722-1:2011[1]. © ISO 2022 – All rights reserved 15 Common standards for RCD construction are IEC 60898-2:2016[8], IEC 61009-1:2010[9]
Distributed by the RYA under licence number 2020ET001 © BSI
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