FRITSCH PULVERISETTE 7 premium line - Handbuch (Seite 55)

n Emergency stop and safety devices must remain effective in all the
equipment’s operating modes, even during abnormal operations (for
example, when a wire becomes disconnected). Resetting these
devices must not cause uncontrolled or improper restarts.
n Ensure that the equipment is protected against unintentional opera‐
tion.
n Appropriate safety measures must be taken for the inputs and out‐
puts (including function keys) to prevent improper states in the
equipment, if no signal is received.
n Cables which carry signals must be located where they do not cause
capacitive, inductive or electromagnetic interference with the equip‐
ment functions.
n Low voltage circuits should always have a ground connection in its
power supply. Low voltage circuits must be protected.
3.5 Safety Checks
The BGV A3 (accident prevention regulations of the professional associa‐
tion) requires that electrical safety standards for electrical installations
and fixed / mobile equipment are duty. Safety Checks according to these
regulations were done and documented by Fritsch before delivery of the
equipment.
Two standards for the examination of electrical safety (eS) after mainte‐
nance must be used:
n VDE 0701 for repair and maintenance According to the VDE 0701,
after repair‐, service‐ or maintenance work is re‐quired, to do the
relevant professional examinations according to BGV A3, if live parts
of the unit were involved. Else it should be noted in the service
report that only a basic maintenance was done and no safety exami‐
nation after BGV A3 has been carried out.
n VDE 0702 for reassessment Operators are responsible to instruct
appropriate tests according to the VDE 0702 by a specialist once a
year. This review, with a compulsory test with certain information is
indicated by a plaque on the equipment. The examination of elec‐
trical safety to VDE 0702 may be done by qualified service personnel
only as an offer to the operators / users.
General Safety
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