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6.3.2
Plug/coupler
In general, only the sealing inserts fitted in the
plug or in the coupler may be used.
When mounting the cable, ensure that the
sealing inserts match the cable diameter
used.
6.4
Closing the device
Before closing the wall sockets, check
that the cable entries are fitted correctly.
When placing the cover of the 7-pole wall
socket, pay attention that the switch handle is
in "0" position and the shaft of the switch
engages into the tappet hole on the switch
handle.
In order to ensure the required minimum
protection category, the cover screws must
be tightened down.
The screws on the plug and on the coupler
must be tightened down.
After connecting the cable, screw the
trumpet-shaped gland, Item 15, of the 21-
pole plug and coupler into the screw-in insert
of the plug or coupler sleeve by hand so that
it seals. (see page 15)
After this, tighten down the screws, Item 16,
of the pull relief, Item 14. They shall be
screwed down tight enough to ensure
sufficient pull relief, to exclude any possible
damage to the cable and to safeguard it from
twisting (see page 15; Fig. 10).
Warning! Excessive tightening might
impair the pull relief.
After having connected the cable correctly
and checked the pull relief of the 7-pole plug,
screw down the pressure piece, Item 3, with
the screws, Item 4, tight enough to ensure
that it is sealed (see page 15, Fig. 4).
Overtightening might impair the
protection category.
Any foreign matter shall be removed from
the device.
6.5
Putting into operation
Before putting the apparatus into operation,
the tests specified in the relevant national
regulations shall be carried out.
In addition to this, the correct functioning and
installation of the apparatus in accordance
with these operating instructions and other
applicable regulations shall be checked.
Check the plug for any damage before
inserting it into the socket.
10
10
10
10
10
Cooper Crouse-Hinds GmbH
Explosion-protected plugs and sockets, 7-pole
GHG 511 .7.. / 592 and 21-pole GHG 511 .9.. / 591
The user shall ensure that an equipotential
earth is applied throughout when the plug
and socket is in operation.
The improper installation and operation
of the plugs and sockets may result in the
invalidation of the guarantee.
7
Maintenance/Servicing
The valid national regulations for the
servicing / maintenance of electrical
apparatus for use in potentially explosive
atmospheres shall be observed
(IEC 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.
During servicing, above all, the parts on
which the explosion protection depends, (e.g.
intactness of the flameproof components, the
enclosure, the seals and cable entries), shall
be checked.
If, in the course of servicing, it is ascertained,
that repairs are necessary, Section 8 of these
operating instructions shall be observed.
8
Repairs /Modifications
Repairs /Modifications
Repairs /Modifications
Repairs /Modifications
Repairs /Modifications
Only original COOPER CROUSE-HINDS
parts shall be used for carrying out repairs.
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 for repair.
Repairs that affect the explosion
protection may only be carried out by
Cooper Crouse-Hinds or by a qualified
electrician in compliance with the
respective national regulations.
If it is necessary to replace plug pins or
socket contact pins, proceed as follows (see
Page15; Figs. 11, 12 and 13):
1.
Open socket or plug as described in
Section 6.2.
2.
After opening, undo the slotted nut,
Item 17, of the plug or socket inserts
using a suitable tool (e.g. slotted nut
spanner). To prevent the through-
screw from turning, hold screw
accordingly. (see p.15;f.11)
3.
Remove the front cover that bears
the designations of the plug or socket
pins.
Warning:
The cover discs for the plug or socket
pins can fall out. To avoid this, hold the
socket or plug insert facing upwards.
4.
Remove the cover disc, Item 19 F.12,
on the contact pins or pins.
5.
Remove pin or contact pin from con-
ductor (unsolder / cut off) and disen-
gage the pin or contact pin by taking
off the interlocking spring, Item 20,
using the dismantling tool, Item 12,
(COOPER CROUSE-HINDS Order
No. GHG 590 1903R0001). Pull the
pin out backwards.
6.
To reassemble the plug / socket,
proceed in the reverse order or refer
to Section 6.2 for assembly details.
7.
How to close the apparatus is
described in Section 6.4.
Apparatus modifications other than those
described or changes to apparatus are
not permitted.
9
Disposal/Recycling
The respective valid national regulations for
waste disposal shall be observed when
disposing of apparatus.
To facilitate the recycling of individual parts,
parts made of moulded plastic shall bear the
marking for the type of plastic used.
The product range is subject to changes and
additions.
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