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In order to ensure the required minimum
protection category, the cable glands shall be
tightened down.
Overtightening might impair the
protection category.
Attention: The metal frame and metal
glands are to be integrated into the
potential equalization.
6.5
Closing the device/
cover closure
Any foreign matter shall be removed from
the apparatus.
In order to ensure the required minimum
protection category, the cover screws are to
be tightened down.
Overtightening might impair the
protection category.
6.6
Taking into operation
Prior to taking the apparatus into operation,
the tests specified in the relevant national
regulations will have to be carried out.
Apart from that, the correct functioning and
installation of the apparatus in accordance
with these operating instructions and other
applicable regulations will have to be
checked.
Incorrect installation and use of the
terminal boxes can invalidate the
guarantee.
10
10
10
10
10
Cooper Crouse-Hinds GmbH
Explosion protected terminal boxes GHG 791 01 and
GHG 791 02
7
Maintenance/Servicing
The relevant national regulations which
apply to the maintenance/servicing of
electrical apparatus in explosive
atmospheres, shall be observed
(EN 60079-17).
Before opening the enclosure make sure
that the apparatus is disconnected from
the voltage, or take the appropriate
protective measures.
In case of intrinsically safe circuits, working is
permitted while voltage applies.
The required maintenance intervals depend
on the respective application and will
therefore have to be determined by the user
dependent on the conditions of use.
When servicing the apparatus, particularly
those parts that are decisive for the type of
protection against explosion, will have to be
checked (e. g. intactness of enclosure, cable
glands, efficacy of the cover gaskets).
If during servicing repairs prove to be
necessary, section 8 of these operating
instructions will have to be observed.
8
Repairs / Overhaul /
Modification
Repairs may only be carried out with genuine
COOPER CROUSE-HINDS spare parts.
Repairs that affect the explosion
protection, may only be carried out by
COOPER CROUSE-HINDS or a qualified
electrician in compliance with the
applicable national rules (EN 60079-19).
Modifications to the apparatus or changes of
its design are not permitted, except for the
mounting of additional cable entries and the
installation of supply terminals in accordance
with the approval of the apparatus.
9
Disposal / Recycling
When the apparatus is disposed of, the
respective national regulations on waste
disposal will have to be observed.
In order to facilitate the recycling of individual
components, plastic parts have been
provided with the identification mark of the
plastic material used.
Subject to modifications or supplement of the
product range.
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