thuba PS 830, Manual

Page: 9 / 72

For outdoor installation it is recommended to
protect the explosion protected distribution and
control panel against direct climatic influence,
e.g. with a protective roof. The maximum ambi-
ent temperature is 40°C, if not stipulated other-
wise.
Terminal compartment in Increased Safety
When closing, it is to be ensured that the gaskets
of the terminal compartment remain effec- tive,
thus maintaining degree of protection IP 54.
Close unused entries by impact-proof stopping
plugs, which are secured against self-loosening
and turning.
Maintenance Work
The gaskets of Ex e enclosures are to be
checked for damages and replaced, if required.
Terminals, especially in the Ex e chamber are to
be tightened. Possible changes in colour point to
increased temperature. Cable glands, stopping
plugs and flanges are to be tested for tightness
and secure fitting.
Intrinsically Safe Circuits
Erection instructions in the testing certificates of
intrinsically safe apparatus are to be observed.
The electrical safety values stipulated on the
type label must not be exceeded in the intrinsi-
cally safe circuit. When interconnecting intrinsi-
cally safe circuits it is to be tested, whether a
voltage and/or current addition occurs. The
intrinsic safety of interconnected circuits is to be
ensured. (IEC 60079-14, section 12)
Manual BVS 19 ATEX E 080 X 5
Edition March 2020 thuba Ltd., CH-4002 Basel
Copyright Switzerland