3
2.4
Personnel qualification
Electrical safety tests of portable electrical equipment can be
carried out by competent persons or qualified electricians. Due to
the definitions of the German technical guideline for operational
safety "Competent persons
– specific requirements – electrical
hazards" (TRBS "Befähigte Personen
– Besondere Anforderungen
– Elektrische Gefährdungen"), it is no longer possible to let the
testing be carried out only by electrotechnically trained persons.
However, the electrotechnically trained person can take over tasks
in a testing team
(e. g. qualified electrician / electrotechnically trained person) within
the framework of periodic tests and thus support the qualified
electrician.
Competent person
In terms of the German Health and Safety at Work Regulation, a
competent person is someone who has the required expert
knowledge for the testing of electrical equipment due to his/her
vocational education, professional experience and contemporary
occupational activity.According to the German technical guideline
for operational safety TRBS 1203, the competent person must
have finished an electrotechnical vocational education or must
have another similar electrotechnical qualification suitable for the
testing of portable electrical equipment to ensure protection
against electrical hazards. The term professional experience
means that the person has at least one year of experience
regarding the installation, assembly or maintenance of electrical
equipment.For the intended testing of portable electrical
equipment, the competent person must have the required detailed
knowledge of electrical engineering as well as of the relevant
electrotechnical regulations and must regularly update this
knowledge.These demands show that safety-related evaluation of
portable electrical equipment basically requires the attributes of a
qualified electrician.
Qualified electrician
In terms of the German accident prevention regulation "Electrical
systems and equipment" (DGUV Regulation 3), a qualified
electrician is someone who is able to evaluate the tasks assigned
to him/her due to his/her professional education, knowledge and
experience as well as to the knowledge of the relevant provisions
and who is able to recognize possible dangers (as a rule e.g.
journeyman electricians, master electricians, electrical engineering
technician, electrical engineer).
Electrotechnically trained person
An electrotechnically trained person is someone who has been
informed and instructed (if necessary) by the qualified electrician
regarding the tasks assigned to him/her and regarding possible
dangers in case of improper behavior. Moreover, the
electrotechnically trained person has been instructed with regard
to the required protection equipment and protective measures.For
all this, e. g. in-house craftspeople or skilled workers, equipment
maintenance personnel or facility managers can be taken into
consideration.
2.5
Qualification for maintenance
Maintenance work must only be carried out by service technicians
of the manufacturer or his contractual partner.
2.6
Intended use
The product may only be used for the applications
described in this operating manual and only with
accessories authorized by the manufacturer.
The product may only be used in a technically perfect
and safe condition.
For testing, the corresponding provisions, regulations
and standards shall be authoritative.
All instructions and notes contained in this operating
manual as well as the technical data sheets must be
observed.
The BENNING ST 755/ ST 760 appliance tester can be
used to its full extent in earthed mains only.
When operated in the IT earthing system, leakage
current measurement is only possible using the
alternative leakage current measuring method.
The device may only be connected to a TN, TT or IT
power supply network with max. 240 V/ 400 V, which
complies with the applicable safety regulations (e. g.
IEC 60346, VDE 0100) and is protected with a
maximum nominal current of 16 A.
For all work carried out with the device, the respective
applicable accident prevention regulations of the
industrial professional associations for electrical
equipment must be observed.
The device has been built and tested in compliance with the
applicable standards and regulations (see chapter 28) and has left
the factory in perfect condition.
To preserve this condition and to ensure safe operation of the
device, the user must absolutely observe the safety notes and
warnings given in this operating manual.
Improper handling and non-observance of the warnings might
involve severe injuries or danger to life.
Do not touch the display with edged objects and do not apply
pressure to the display. Only use the input stylus provided or a
similar type. It is also possible to operate the device with your
fingers.
The device complies with protection class II. For operation of the
"test socket", the protective conductor of the device input is looped
through. The protective conductor is intended for measuring to
earth. The device must be connected to a single-phase mains with
230 V, 50 Hz and a pre-fuse of 16 A only.
