128
EN
the circuits of the generator and the connected electrical
device in the case where the connected electrical device
has Class I. protection or the electrical device is grounded,
where it is then also necessary to ground the generator
for the requirements of directive HD 60364-4-4 (in the
Czech Republic it is norm ČSN 33 2000-4-41) to be met.
Grounding must be performed using norm compliant
grounding devices and must be carried out by a person
with the required professional qualifications based on the
conditions where the generator is located and operated.
USING AN EXTENSION CORD
FOR CONNECTING ELECTRICAL
DEVICES TO THE GENERATOR
The load capacity of the cables depends on the
resistance of the conductor. The longer the cable used,
the greater must be the cross-section of the conductor
(wire/s). Due to electrical power losses, the greater the
length of a cable, generally the lower is the operating
performance at its end.
According to norm EN ISO 8528-13, when using extensi-
on cords or mobile distribution networks, the resistance
value must not exceed 1.5 Ω. The total length of cables
with a conductor cross-section of 1.5 mm
2
must not
exceed 60 m. With a conductor cross-section of 2.5 mm
2
the length of the cable must not exceed 100 m (with the
exception of cases, where the generator meets the requi-
rements of protection by electrical isolation in accordan-
ce with annex B (B.5.2.1.1.) of norm EN ISO 8528-13.
According to the Czech norm ČSN 340350, the nomi-
nal length of a flexible extension cable with a wire
cross-section of 1.0 mm
2
Cu at a nominal current of
10 A must not be longer than 10 m, an extension cable
with a core cross-section of 1.5 mm
2
Cu at a nominal
current of 16 A must then be no longer than 50 m.
According to this norm, the total length of a flexible
power cable including extension cords should not
exceed 50 m (if, for example, this is an extension cord
with a cross-section of 2.5 mm
2
Cu).
For reasons of cooling, the extension cord must not be
wound up or wound on to a spool, but must be fully
unwound along its entire length.
DRAWING DIRECT CURRENT
(DC 12 V, 8.3 A)
The 12 V DC power socket is intended for charging 12
V lead car batteries using 12 V charging cables and cro-
codile clips (fig. 22).
1. Turn off the motor vehicle, turn off all turned on
electrical devices inside the vehicle and take the
key out of the vehicle's ignition and turn off the
generator if it is running.
2. Insert the charging cables into the 12 V DC socket
on the generator (fig. 22).
•
ATTENTION
y
Only connect the 12 V DC charging output of the genera-
tor to the car battery when the generator is not running.
3. Before connecting the charging cables to the car
battery terminals, first identify which battery ter-
minal is grounded, i.e. connected to the chassis
(frame) of the vehicle.
On most modern vehicles the grounded negative
electrode of the battery is marked with the symbol
"-". In this case, first connect the alligator clip with
the red charging cable to the non-grounded posi-
tive pole of the battery ("+") and then connect the
alligator clip of the black charging cable ("-") to the
chassis (frame) of the vehicle. Do not connect the
alligator clip to the carburettor, fuel line or sheet
metal parts of the chassis, always use massive solid
metal parts of the frame or the engine block.
y
In the event that the positive electrode of the batte-
ry is grounded, then first connect the black charging
cable with the alligator clip ("-") to the negative
electrode of the battery and then connect the alliga-
tor clip with the red charging cable ("+") to the chas-
sis (frame) of the vehicle, whilst adhering to all the
measures described above.
y
Take care that the charging cables are correctly con-
nected to the terminals of the car battery. Connect
the clamp of the red cable to the positive terminal
and the clamp of the black cable to the negative ter-
minal of the car battery.
4. Start the engine of the generator.
When charging batteries, follow the instructions of
the battery's manufacturer.
Do not start the engine of the motor vehicle during
the recharging process.
In the event that these instructions are not followed,
the generator and battery may be damaged.
•
ATTENTION
y
The generators do not have car battery over-char-
ging protection and, therefore, regularly check the
voltage on the car battery terminals using a voltme-
ter. The terminal voltage on the battery should not
be higher than 14.4 V, otherwise the car battery will
be damaged by overcharging. The 12 V DC output is
not intended for charging any other batteries than
12 V lead car batteries with a flooded electrode.
•
ATTENTION
y
Hydrogen is produced during the battery recharging pro-
cess, which together with air creates an explosive mixture.
Therefore, do not smoke during the recharging process
and prevent access to any flame or radiant heat sources.
Ensure sufficient ventilation in the recharging area.
y
The battery contains a sulphuric acid solution, which
is a strong caustic agent, which causes chemical
burns and tissue damage. When handling the batte-
ry, use suitable protective equipment, as a minimum
rubber gloves and safety glasses.
