Kobold VKG, Руководство по эксплуатации

Страница: 13 / 28

VKG
VKG K09/0322 Page 13
s) Within the potentially explosive area, installation may only be carried
out taking into account the locally applicable installation regulations.
The following conditions must be observed (incomplete):
t) Installation and maintenance may only be carried out in an explosion-
free atmosphere and in compliance with the regulations in force in
the country of the operator.
u) Additional precautions must be taken if the presence of hydrogen
sulphide, ethylene oxide and / or carbon monoxide is to be expected:
these substances have very low ignition energy!
v) In the presence of these substances and in the presence of a
substance of the explosion group IIC and in the case of presumably
existing potentially explosive atmosphere, only spark-free tools may
be used!
4. Maintenance, servicing
Definition of terms according to IEC 60079-17:
Maintenance and Repair:
A combination of all activities performed to maintain or
recover an item in a condition that meets the requirements of the specification in
question and ensures the performance of the required functions.
Inspection:
An activity involving the careful examination of an object, with the aim
of obtaining a reliable statement of the condition of the object, carried out without
disassembly or, if necessary, with partial disassembly, supplemented by measures
such as measurements becomes.
Visual inspection:
A visual inspection is a test that detects visible faults, such as
missing screws, without the use of access devices or tools.
Close-up Test: A test that identifies, in addition to the aspects of visual inspection,
such errors, such as loose screws, which can only be obtained by using access
devices, such as a screwdriver, e.g. steps (if necessary), and tools are visible. For
close-up tests, housing usually does not need to be opened or the equipment must
be de-energized.
Detail test: A test that detects, in addition to the aspects of close-up testing, such
defects as, for example, loose connections that can only be recognized by opening
housings and / or, if necessary, using tools and test equipment.
a) Maintenance measures may only be carried out by qualified persons.
b) Only use accessories in potentially explosive atmospheres that comply with
all requirements of European directives and national legislation.
c) Maintenance measures with dismantling of the reed switch may only be
carried out in an ex-free atmosphere.
d) The replacement of components may only be carried out with original spare
parts, which are also approved for use in potentially explosive areas.
e) The products must be regularly maintained and cleaned in the Ex area. The
intervals are set by the operator according to the environmental demands
on site.