BS EN ISO 10133:2017 ISO 10133:2012(E)
NOTE See Annex C for voltage drop calculations.
Circuits that typically require a 3 % voltage drop include: a) panel board/switchboard main conductors; b) navigation lights; c) bilge blowers; d) bilge pumps; and
e) other equipment vital to safety or where voltage drop should be kept to a minimum as specified by their manufacturer.
5 Batteries 5.1 Batteries shall be permanently installed in a dry, ventilated location above anticipated bilge water level. 5.2
5.3
Batteries shall be installed in a manner to restrict their movement horizontally and vertically considering
the intended use of the craft, including trailering if applicable. A battery, as installed, shall not move more than 10 mm in any direction when exposed to a force corresponding to twice the battery weight.
Batteries as installed in the craft shall be capable of inclinations of up to 30° without leakage of electrolyte.
Means shall be provided in monohull sailing craft for containment of any spilled electrolyte up to inclinations of 45°. 5.4
5.5 5.6
Batteries shall be installed, designed or protected so that metallic objects cannot come into unintentional contact with any battery terminal.
Batteries, as installed, shall be protected against mechanical damage at their location or within their enclosure.
Batteries shall not be installed directly above or below a fuel tank or fuel filter without an intervening deck or structure to isolate fuel components.
5.7 Any metallic component of the fuel system within 300 mm and above the battery top, as installed, shall be electrically insulated. See Figure 1.
Front view
Side view a) Top terminal battery 4 © ISO 2012 – All rights reserved
Top view
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