Electrical systems
67
GENERATOR USAGE
Caution should be used before connecting a
generator to your motorhome.
Warning: Never start or stop the generator
while electrical loads are connected
and switched on. Start the engine, let it
stabilise, then connect the electrical load.
To stop engine, disconnect the electrical
load and let engine stabilise before
switching off.
Whilst some generators use invertor
technology, others use a more basic principle
to generate the 230v supply. Preference should
be to choose a generator which produces a
consistent sinusoidal wave form with accurate
voltage control.
The reverse polarity warning light may
illuminate when using a generator. This is a
normal side effect when using some types of
generator. Instead of connecting the neutral
and live conductors 110v above earth. This
110v difference causes the neon polarity
indicator to illuminate.
In most cases it is safe to use a generator, but
please consult the generator handbook for
further information.
HABITATION RELAY
Habitation relays are fitted to caravans by
manufacturers to comply with the following
legislation:
1. The Road Vehicles (Construction and Use)
Regulations 1986 Regulation 60 - Radio
interference suppression
2. Council Directive 72/245/EEC of June 20,
1972 amending for the purpose of their
adaptation to technical progress, relating
to the radio interference (electromagnetic
compatibility) of vehicles and Council
Directive 70/156/EEC on the approximation
of the laws of the Member States relating
to the type-approval of motor vehicles and
their trailers.
A habitation relay must be fitted by
manufacturers, safe guarding the consumer,
the purpose of the relay is to disable non-
homologated appliances/components whilst
the vehicle is in transit.
Unitentional electromagnetic energy can be
created by non-homologated devices within
the habitation compartment, could cause a
malfunction of the base vehicles electronic
systems/components, including safety critical
items such as air bags, ABS braking etc.
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