this
cannot ensured the person carrying out the test, sufficient number least instructed
persons shall present supervise the entire test area and take immediate action the event
of danger. Communication with the responsible skilled
person shall ensured.
General requirements for the safe operation and work activity electrical equipment are:
1) Students school laboratories may work only under the overal supervision a
nominated person control the work activities (teacher).g. Electrical work activities school laboratories
These rules are applicable all operation and work activity with near electrical
installations laboratories Faculty Electrical Engineering CTU Prague. The number students who
are liable the supervision one nominated person control the work activities is
10 less. Before starting work laboratory
the nominated person control the work activities (teacher) must verify means for
emergency switching off.
2) School laboratory shall provided with means for emergency switching off order to
cut off all electrical energy, which could result danger.ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT
100
In test station without automatic protection against direct contact, safety measure
during the operational status ready switch and operation, least one person shall be
present visual and audible contact with the person carrying out the test and the position
to recognize any dangerous conditions the test station immediately and eliminate the danger by
actuating the emergency switching off device. when testing installed
cables, one person required guard each area.
Before touching test objects which have been switched off, shall ensured that no
dangerous voltages are present the accessible parts earthing and short circuiting.10.g.
3) All students shall instructed the safety requirements, safety rules and laboratory
instructions applicable their work. adequate number manual
controls shall provided inside the laboratory.
If temporary station separated from generally accessible areas only means ropes,
chains bars, the following conditions apply addition the other requirements:
a) The entire test assembly shall under surveillance during the test procedure. outlets the
general power supply within the laboratory shall identified accordingly, they are not
interrupted the emergency switching off equipment. Students shall required comply with the
.
b) case test assemblies with several separate test areas, e. Connection points, e.
Emergency routes and exits shall always kept clear. Where the work activity more complex may necessary nominate
person responsible for the safety smaller groups students.
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