d05781.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 2
24-00-00
Page 5
January 01/2014
1.2) Battery
1.2.1) Technical data
General note
When sizing the battery ensure that during each operating state and also
during the transition between two operation states a sufficient supply of
the display is guaranteed (e. g. during engine start).
Furthermore, it must be ensured that at least 30 minutes after failure of
the primary power supply the display is supplied with sufficient energy, if it
is necessary for a safe operation of the aircraft.
Specification
NOTE: The responsibility to use a lower capacity battery is up to
the aircraft manufacturer. It should be noted that additional
electrical loads, which are in some cases required by law,
affect the battery performance during the starting process,
(e.g. ACL (Anti Collision Light), Navigation Light, Avionic).
The size of the battery will need to be adequate for es-
sential flight equipment for the time defined in the air-
worthiness requirements.
If the aircraft is regularly used at temperatures below -
5 °C (23 °F) (i.e. the engine start is carried out at these
engine and ambient temperatures) it is recommended
to provide a connection for an external power supply
and that adequate engine pre-heating is applied.
Nominal voltage 12 V
Internal resistance Maximal 10 mΩ at -18°C (-0.4F°)
Capacity At least 16 Ah
Cold Cranking Ampere (cca) At least 350 A at -18 °C (-0.4 F°) (SAE J537)
The use of rechargeable batteries with lithium, ion
technology is not permitted unless a suitable battery
management system is available and can be used.
The responsibility is up to the aircraft manufacturer.
The consent and approval of the relevant aeronautical
authority is necessary.
To Next Page
Loading...
Need help?
General
