5/12
ALFA IN a.s. ©
www.alfain.eu
18.
The operator must be aware of all the special regulations which he
needs to conform to when welding in enclosed spaces with a high risk of
explosion.
19.
To prevent electric shock, we strongly suggest the following rules:
20.
Do not work in a damp or humid environment.
21.
Do not use the welding machine if its cables are damaged in any
way.
22.
Make sure that the earthing system of the electric equipment is
correctly connected and operational.
23.
The operator must be insulated from the metal components
connected to the return wire.
24.
The earthing of the piece being worked could increase the risk of
injury to the operator.
25.
EN 60974-1 Standard: Open-circuit voltage. During the operation of
the machine, the highest voltage, with which it is possible to come into
contact, is the open-circuit voltage between the welding clamps. In our
generator this voltage is 58V.
26.
The maximum open-circuit voltage of the welding machines is
established by national and international standards (EN 60974-1)
depending on the type of weld current to be used, on its waveform and on
the hazards arising from the work place. These values are not applicable
to the strike currents and those for stabilisation of the arc that could be
above it.
27.
In high electrical risk areas (in confined spaces) it is only allowed to
use machines with – sign S.
28.
Before opening the machine switch off the machine and disconnect
it from the power socket.
29.
Only personnel authorised by this company can carry out
maintenance on the machine.
NOTE:
Device complies with IEC 61000-3-12.
ELECTROMAGNETIC COMPATIBILITY
The welding device is in terms of interference designed primarily for industrial
areas. It meets the requirements of EN 60974-10 class A and it isn’t designed
for using in residential areas, where the electrical energy is supplied by public
low-voltage power supply network. It can be here potential problems with
ensuring of electromagnetic compatibility in this areas, due to interference
caused by power lines as well as the radiated interference. During operation, the
device may be the source of interference.
Caution
We warn users, that they are responsible for possible interference from
welding.