14
6.5 Putting into operation
Before putting the apparatus 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 apparatus 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.
Warning: Only certified apparatus
may be put into operation.
If the Explosion-protected flameproof
enclosures interior temperatures under -20 °C
the system must not be operated.
If lower temperatures are present, the
Explosion-protected flameproof enclosures
must become pre-heated with a suitable
certified heating on over -20 °C.
If an uncertified heating is used to pre-heat
the flameproof enclosures inside temperature
on over -20 °C, explosive atmosphere must
not be present.
8
Repair / Overhaul/
Modifications
Only original Cooper Crouse-Hinds / CEAG parts
shall be used for carrying out repairs that concern
the explosion protection.
Repairs that affect the explosion protection,
may only be carried out by COOPER CROUSE-
HINDS or a qualified electrician (Competent
person) in compliance with the applicable
national rules (IEC/EN 60079-19).
In the event of damage to the flameproof
encapsulation, replacement of these
components is mandatory. In case of doubt,
the respective apparatus shall be sent to
Cooper Crouse-Hinds / CEAG for repair.
Reconstruction or modifications to apparatus
are only possible within the scope of the
approvals and shall be certified afterwards.
Moreover, additional terminals within the scope of
the apparatus approvals and cables entries
according to the details given by the manufacturer
may be fitted.
9
Disposal / Recycling
The respective valid national regulations for waste
disposal shall be observed when disposing of
apparatus.
The product range is subject to changes and
additions.
7
Maintenance / Servicing
The valid national regulations for the
servicing / maintenance of electrical
apparatus for use in potentially explosive
atmospheres shall be observed
(IEC/EN 60079-17).
Prior to opening the enclosure, it is necessary
to ensure that the voltage supply has been
isolated or to take suitable protective
measures.
The necessary intervals between servicing depend
upon the specific application and shall be
stipulated by the operator according to the
respective operating conditions.
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 to ensure their correct
state, e.g.:
1. Flameproof enclosures
Visual inspection of the cover thread.
The thread shall not be treated or varnished!
Any damaged parts shall be replaced immediately
using original parts or the damaged parts shall be
repaired by the manufacturer.
2. Connection and bus bar boxes
Check all seals for efficiency and intactness.
Replace older or damaged seals with new seals.
Check that connection terminals and cable entries
fit securely.
If, in the course of servicing, it is ascertained, that
repairs are necessary, section 8 of these operating
instructions shall be observed.
Explosion protected flameproof enclosures and distributions,
series: GHG 6.. and EXKO
6.4 Closing apparatus/
Cover lock
Any foreign matter shall be removed from the
apparatus.
Grease the cover thread before screwing the
enclosure cover into the flameproof enclosure,
preferably with grease type: Renocal, Unitemp 2,
-50°C to +100° C, FN 745/94, DIN VW TL 745.
To close the flameproof enclosure, it is necessary
to fit the cover onto the enclosure base correctly (if
necessary, turn the cover anticlockwise).
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 or of the
switch, item 3, (Figs. 1 + 2, page 12).
To close the connection or bus bar boxes, the
catch locks of the cover are closed using the
internal square spanner.
To prevent unauthorized switching, the interlocking
switches can be locked in the „OFF“ position by
means of 3 padlocks (shackle diameter of the
padlocks up to 6 mm).
GB
