Opening Apparatus/Electrical Connection; Cable Entry (Kle); Blanking Plug; Closing Apparatus - Eaton CROUSE-HINDS Série Mode D'emploi

8. Tighten the connection cable in the
protective cap with the pressure screw, item
8 (see Section 6.3).
To dismantle, proceed in the reverse order. To
release the protective cap, the clips are pushed
out of the grooves in the component, item 1,
using the dismantling tool (item 13) and the
protective cap removed (see Fig. 4).
6.2 Opening apparatus/
Electrical connection
Before opening the apparatus (pulling off
protective cap), it is necessary to ensure that
there is no voltage or to take suitable
protective measures.
The electrical connection of the may only be
carried out by specialists
(IEC/EN 60079-14).
The properly bared conductors of cables shall be
connected with due regard to the respective
regulations.
To maintain the explosion protection, conduc-
tors shall be connected with special care.
The insulation shall reach up to the terminal.
The conductor itself shall not be damaged.
The minimum and maximum conductor cross
sections that can be connected shall be
observed (see technical data).
All screws and/or nuts of connection terminals,
including those not in use, shall be tightened
down securely.
The standard terminals are designed for the
direct connection of conductors with copper
wires.
The circuit diagram of the built-in components is
shown on the components or in the operating
instructions.
6.3 Cable entries (KLE);
blanking plugs
When fitting cables, care shall be taken to use
sealing inserts of the cable entry of the
protective cap that are suited for the respective
cable diameter.
In order to ensure the required minimum degree
of protection, the pressure screws shall be
tightened down securely.
Overtightening can impair the degree of
protection.
8
Explosion-protected control units GHG 418
6.4

Closing apparatus

Any foreign matter shall be removed from the
apparatus.
In order to ensure the required minimum degree
of protection, the protective cap and the
actuating element shall be mounted correctly in
accordance with the instructions (see 6.1).
Overtightening can impair the degree of
protection.
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 and installation
of the apparatus and built-in components (signal
lamps, pushbuttons, etc.) shall be checked in
accordance with these operating instructions
and other applicable regulations.
The improper operation of control units 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/EN 60 079-17).
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 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 / Overhaul /
Modifications
Only original COOPER CROUSE-HINDS / CEAG
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 / CEAG for repair.
Repairs that affect the explosion protection
may only be carried out by COOPER CROUSE-
HINDS / CEAG or by a qualified electrician in
compliance with the respective national
regulations (IEC/EN 60 079-19).
Apparatus modifications or design changes are
not permitted.
When replacing individual built-in components
(pushbuttons, etc.) section 6.2 "Opening
apparatus / Electrical connection" shall be
observed.
9 Disposal / Recycling
The respective valid national regulations for
waste disposal shall be observed when
disposing of apparatus and built-in components
(measuring instruments, signal lamps, pushbut-
tons, etc.).
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.
GB