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Over tightening can impair the degree of
protection.
In order to guarantee and/or establish the
explosion protection and degree of
protection, unused entry holes shall be
sealed
with
a
certified
blanking plug.
6.4 Closing equipments /Cover lock
Any foreign matter shall be removed from
the equipment.
Grease the cover thread before screwing the
enclosure cover into the flameproof enclosure
base, preferably with grease thermally and
chemically stable i.e.: Molikote® BR2 plus..
To close the flameproof enclosure, it is
necessary to fit the cover onto the enclosure
base correctly (if necessary, turn the cover
anticlockwise) and if the cover have any rotate
handle this should be engage correctly with
the internal mechanism.
The cover can then be screwed into the
enclosure base by turning it in a clockwise
direction until the stop is reached.
After this, the cover shall be fixed in position
with the interlocking screw of the cover (see
Fig. 1, item 3).
6.5 Putting into operation
Before putting the equipments into operation,
the tests specified in the individual national
regulations shall be performed. In addition to
this, before being put into operation, the correct
functioning of the equipments and of the built-
in components (measuring instruments, signal
lamps, pushbuttons, etc.) shall be checked in
accordance with these operating instructions
and other applicable regulations. See the par-
ticular technical documentation of supplied
equipment for any reference of the built in
materials
Warning: Only certified equipments may
be put into operation.
Warning
To avoid the risk of fire, explosion, or electric
shock, this product should be installed,
inspected, and maintained by a qualified
electrician only, in accordance with all
applicable electrical codes.
Cooper Crouse-Hinds, S.A.
7
Explosion protected switchgear equipments and racks Serie: GUB
7 Maintenance / Servicing
The valid national regulations for the
maintenance / servicing of electrical
equipments for use in potentially explosive
atmospheres shall be observed (i.e. EN/IEC
flameproof
60079-17).
Before opening the enclosure, it is
necessary to ensure that the voltage supply
has been isolated. Any time indicated on
the enclosures between isolation and the
opening shall be observed.
The necessary intervals between servicing
depend upon the specific application and shall
be stipulated by the operator according to the
respective operating conditions. We recommend
a regular maintenance according to an approved
preventive maintenance program.
As part of the routine testing, the earth leakage
trip shall be tested twice a year.
During servicing, above all, parts on which the
explosion protection depends shall be tested or
visually inspected to ensure their correct state,
i.e.:
- Enclosure and threaded parts shall be properly
greased, in good conditions, clean and without
any corrosion or damaged.
- The thread shall not be treated, painted nor
varnished!
- Check all seals for efficiency and intactness.
Replace older or damaged seals with new seals.
Any damaged parts shall be replaced
immediately using original parts or damaged
parts shall be repaired by the manufacturer.
Check that connection terminals, cable entries
and blind plugs fit securely.
All electrical and electronic material inside of
the enclosure shall be maintained as per their
own instructions.
If, in the course of servicing, it is ascertained,
that repairs are necessary, section 8 of these
operating instructions shall be observed.
All statements, technical information and recommendations contained herein are based on
information and tests we believe to be reliable. The accuracy or completeness thereof are
not guaranteed. In accordance with COOPER Crouse-Hinds "Terms and Conditions of
Sale" and since conditions of use are outside our control, the purchaser should determine
the suitability of the product for his intended use and assumes all risk and liability
whatsoever in connection therewith.
8 Repair / Overhaul / Modifications
Repairs and overhaul may only be carried out
with genuine COOPER Crouse-Hinds spare
parts.
Switch off the equipment before opening or
isolate it before the dismantling of individual parts.
Only use original 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. For repair electrical equipments
in protection mode is suggested follow the
instructions indicated in EN/IEC 60079-19.
Modifications to the equipments or changes of
its design are not permitted.
All reparations have to be done without
voltage!
In the event of damage to the flameproof
enclosures or other part of equipments that
could affect the mode of protection,
replacement of these components is
mandatory. In case of doubt, the respecti-
ve equipments shall be sent to
COOPER
Crouse-Hinds
Reconstruction
or
modifications
equipments are only possible within the
scope of the approvals and shall be
certified afterwards.
9 Disposal / Recycling
When the equipment or their parts is disposed
of, the respective valid national regulations on
waste disposal shall be observed. In order to
facilitate the recycling of individual components,
plastic parts are provided with the identification
mark of the plastic material used.
Subject to alteration or supplement of this product
without any advertisement before.
Save these instructions for future reference.
for
repair.
to
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