spare parts must only be installed and removed with the safety switch off
load and work only with material dimensions specified in the TECHNICAL DATA chapter
all adjustment activities should be carried out after disconnection of the main switch. Such
activities must be supervised by a second person who could help if necessary
it is not allowed to manually or mechanically remove waste materials while plasma burner is
performing a cutting process. Clean the machine after switching off the power supply
while the machine is working, only the operator controlling the burner may be at the operating
position
inspections and repairs are the responsibility of the maintenance team. The operator cannot
perform such activities
Responsibilities of the machine operator are:
compliance with safe working methods given in the manual and provided by the manager or
foreman as a part of the instruction
ensuring good technical condition of the burner and its full efficiency
cleaning the table and linear guides after finishing work
ensuring the disconnection from the power supply after work
protection against starting up by unauthorized persons
3.11. DANGER OF ELECTRIC SHOCK
The burner should be connected to a power supply equipped with a switch that protects against
electric shock. The table structure should be connected to the grounding installation of the building
by PE wire (minimum 16 mm2). Work on the electrical installation may only be carried out by an
authorized and qualified electrician with qualifications for the use of electrical equipment and
installations of up to 1 kV. It is not allowed to change the settings of electrical devices. If electrical
work requires voltage to be turned on, a second person must help to turn on and off the power if
necessary. During repairs, adjustments or maintenance operations, the machine must be absolutely
stopped and secured in such a way that it cannot be accidentally started. At least once a year the
burner should be brought under electrical tests for electric shock protection. Once all tests are
completed, the relevant approval report has to be issued. The plasma burner must be definitely
connected to the grounding installation of the object in which it was installed via a protective
conductor. In the case of a "water" table, the burner must absolutely work above the surface of the
liquid. In case of burner having contact with water, this can result in electric shock and injuries to the
operator.
3.12. PROTECTION OF ELECTRICAL INSTALATION AGAINST HIGH VOLTAGE
It is the user's responsibility to protect the electrical installation system, to which the machine is
connected, from accidental over-voltages that may damage the machine's control parts. Damages to
the machine's control units caused by temporary surges and over-voltages will not be repaired under
the warranty. In such a case, the warranty will be voided by the manufacturer. The plasma burner as
a computer-controlled numerical device should be protected by an uninterruptible power supply
(UPS) with a minimum power of 1000W.
3.13. ELECTROMAGNETIC FIELDS (EMF)
Electric current flowing through any conductor creates locally electric and magnetic fields (EMF -
electromagnetic field). To reduce the danger associated with the EMF fields:
never wrap the body with torch wires
do not stand between burner wires