Operation Manual

Electrical system
9
85Caravan - 12-11 - EN
9Electrical system
Chapter overview
This chapter contains instructions regarding the electrical system of the caravan.
The instructions address the following topics:
z safety
z explanations of terms relating to the battery
z 12 V power supply
z living area battery
z charging the living area battery
z power pack
z transformer/rectifier
z panel
z 230 V power supply
z connection to the 230 V power supply
z fuse rating
z towing vehicle connection
The operation of the electrical appliances of the housing body is described in
Chapter 10.
9.1 General safety instructions
The vehicle is a safe place during a storm (Faraday cage). However, to protect the
electrical devices, disconnect the 230 V connection and retract the antennae as a
precaution.
9.2 Terms
Off-load voltage The off-load voltage is the voltage of the battery in idle condition, i.e. no current is
consumed and the battery is not being charged.
Closed circuit current Some electrical appliances, such as the clock and the indicator lamps, require con-
tinuous electric current, for this reason they are referred to as inactive appliances.
This closed circuit current flows even if the 12 V power supply has been switched
off.
Total discharge Total discharge of the battery is imminent, if a battery is completely discharged by
an active appliance and by closed circuit current.
Capacity Capacity refers to the amount of electricity which can be stored in a battery.
The capacity of a battery is given in ampere hours (Ah). If a battery possesses a
capacity of 80 Ah, then the battery can dispense a current of 1 A for 80 hours or a
current of 2 A for 40 hours.
External influences such as temperature may alter the storage capacity of the bat-
tery.
X Only allow qualified personnel to work on the electrical system.
Z Total discharge damages the battery.