.2 the capacity of the battery or batteries shall be checked, using an
appropriate method,* at intervals not exceeding 12 months,
when the ship is not at sea.
7 The siting and installation of accumulator batteries which provide a
reserve source of energy shall be such as to ensure:
.1 the highest degree of service;
.2 a reasonable lifetime;
.3 reasonable safety;
.4 that battery temperatures remain within the manufacturer’s
specifications whether under charge or idle; and
.5 that when fully charged, the batteries will provide at least the
minimum required hours of operation under all weather
conditions.
8 If an uninterrupted input of information from the ship’s navigational
or other equipment to a radio installation required by this chapter, including
the navigation receiver referred to in regulation 18, is needed to ensure its
proper performance, means shall be provided to ensure the continuous
supply of such information in the event of failure of the ship’s main or
emergency source of electrical power.
Regulation 14
Performance standards
1 All equipment to which this chapter applies shall be of a type approved
by the Administration. Subject to paragraph 2, such equipment shall
conform to appropriate performance standards not inferior to those adopted
by the Organization.{
_
* One method of checking the capacity of an accumulator battery is to fully discharge and
recharge the battery, using normal operating current and period (e.g. 10 h). Assessment of the
charge condition can be made at any time, but it should be done without significant discharge
of the battery when the ship is at sea.
{ Refer to the following resolutions adopted by the Assembly of the Organization:
.1 Resolution A.525(13): Performance standards for narrow-band direct-printing
telegraph equipment for the reception of navigational and meteorological
warnings and urgent information to ships.
.2 Resolution A.694(17): General requirements for shipborne radio equipment
forming part of the global maritime distress and safety system (GMDSS) and for
electronic navigational aids.
.3 Resolution A.808(19): Performance standards for ship earth stations capable of
two-way communications and resolution A.570(14): Type approval of ship earth
stations.
.4 Resolution A.803(19): Performance standards for shipborne VHF radio
installations capable of voice communication and digital selective calling, as
amended, and resolution MSC.68(68), annex 1 (valid for equipment installed on
or after 1 January 2000).