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Fig. 9
1
Item 6, 5, 4
2
4
Item 2
Pressure piece
Item 3
Locking screw
Item 4
Srain relief
Item 5
Seal
Item 6
Thrust washer/Screen clamp
Fig. 11
Exposion-protected plug and socket systems
4-pole (3+PE), GHG 57.
Fig. 10
Item 3
screen clamp
Item 2
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 60079-14).
Prior to opening the enclosure, it is
necessary to ensure that the voltage
supply has been isolated or to take
suitable protective measures.
3
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 depend, (e.g.
intactness of the flameproof components, the
enclosure, the seals and cable entries), and
the switch mechanism function of the control
switch 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
Only original manufacturer parts shall be
used for carrying out repairs.
In the event of damage to the plug pins or
contact sockets, these components shall
be replaced immediately or the respective
apparatus shall be sent to the
manufacturer for repair.
Plastic protection caps
spare part
Coupler and flange socket
Order no.:
GHG 510 1903 R0001
Illustration with
Thrust wascher /
(2)
Screen clamp (6)
Screen wires
of conductor with seal (4,5)
Flamepaths shall not be machined or
painted. 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 the manufacturer for repair.
Replacing plug pins or contact sockets is
only possible for QUICKON® connections.
To replace the pins or contact sockets,
proceed as described in Section 6.2.1.
Repairs that affect the explosion
protection may only be carried out by the
manufacturer or by a qualified electrician
in compliance with the respective national
regulations (IEC/EN 60079-19).
Apparatus modifications or design
changes are not permitted.
9.
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.
Plug and inlet
Order no.:
Pressure piece
Strain relief
Connection
Disposal / Recycling
GHG 510 1903 R0002
Cooper Crouse-Hinds GmbH
cable
29
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