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Chapter 3 CARAVAN SERVICE SYSTEMS
It is always advisable to have at least one other mains appliance
switched on with the charger unit to minimise the chance of damage
to it.
Caution: Do not connect the 12 volt output of the generator to the battery
terminals. The AC ripple must not exceed 10%.
Overseas connections
Caution: Connection to a mains voltage supply overseas requires particular
attention.
Care must be taken when connecting supplies abroad since the supplies
can be of reverse polarity.
The significance of reverse polarity is that when equipment is switched
off it may not be electrically isolated.
The only certain way of making equipment safe is to unplug it.
A means of checking the polarity of the mains supply when overseas is
useful.
There are available several proprietary makes of equipment for the purpose.
If it can be achieved, it is preferable to connect live to live, and neutral to
neutral to maintain full electrical protection.
Check all caravan equipment is set-up to accept the site supply before
actually switching on.
Mains unit
The mains unit replaces the conventional fusebox. Similar, but larger
units are often fitted in newer houses.
THE ELECTRICAL SYSTEM – 230 VOLT (continued)
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