Datumnovember 2005
VakElectrische installaties
Vragen4 vragen
Tijd45 minuten
BevoegdheidAML B

Vraag 1


Vraag 2.
Bij een Gel-loodaccu is de volgende beschrijving bijgevoegd:

Leak proof.
The electrolyte in these batteries is in a 'jelly' form.
Can be used in any position.
No 'memory effect' as with NiCad.
Maximum life is achieved when used in 'float' or standby condition, i.e. constant trickle charge at 13v6 to 13v8 as given by the battery charger, or good aircraft regulated power supply.
Low self discharge.
Wide operating temperature: -20 to +50 degrees C.
Excellent recovery from deep discharge.
Charge only with a regulated DC voltage source of 13v8 for continuous trickle such as is given by the domestic charger or regulated aircraft DC supply.
Do not charge with a NiCad battery charger like the one that comes with your ICOM radio. These charge at constant current and will cause damage to a lead/acid "gel" battery.
Or do not charge with a car battery charger. They are not regulated and will cause damage to a lead/acid "gel" battery.
Do not charge with reversed polarity. This will cause damage to a lead/acid "gel" battery.

Vraag 3.


Vraag 4.

Overige beschikbare vakken van dit examen: Geen.

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