Flanges And Metal Plates; Closing Apparatus; Putting Into Operation; Maintenance/Servicing - Cooper Crouse-Hinds GHG 619 Mode D'emploi

Fig. 10
Connection of bolt terminals up to 240 mm²
6.4

Flanges and metal plates

If flange plates of moulded plastic enclosures
are to be mounted (e.g. after drilling entry
holes), to maintain the minimum protection
category it is necessary to ensure that the
flange plate and the fixing clamp are fixed
correctly.
The flange plates of stainless enclosures shall
be mounted in such a way that the IP degree
of protection is maintained. Here it is
necessary to pay attention to the exact fit of
the sealing element.
PE conductors fed from outside are to be
connected to the PE terminal provided on
the flange. The maximum terminal cross
section is 50mm².
Warning: Metal enclosures, metal flanges,
metal plates and metal glands shall be
incorporated in the potential equalization.
6.5

Closing apparatus

Any foreign matter shall be removed from
the apparatus.
When replacing the enclosure cover, it is
necessary to ensure that the switch shafts
of the switch inserts are fitted correctly
into the carrier openings of the switch
handles. In addition to this, it is also
necessary to ensure that the front actuator
elements match the built-in components.
To ensure the minimum protection category,
the cover screws shall be tightened down
securely.
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Cooper Crouse-Hinds GmbH
Explosion-protecded distributions GHG 619
Overtightening can impair the degree of
protection.
Warning:
To ensure the minimum protection
category, the MCB flap shall be closed with
a suitable socket-head spanner (M8).
(Marking of lock position indicator shall be
set to Zu/Closed)
6.6

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.
The zero setting of the measuring instrument
needle shall be checked before putting it into
operation. If necessary, the measuring
instrument needle shall be set to zero using
the adjustment screw.
The incorrect installation and operation of
distributions can result in the invalidation
of the guarantee.
7 Maintenance / Servicing
The valid regulations IEC 60 079-17 for the
servicing / maintenance of electrical
apparatus for use in potentially explosive
atmospheres shall be observed.
Prior to opening the enclosure, it is
necessary to ensure that the voltage supply
has been isolated or to take suitable
protective measures.
In the case of intrinsically safe circuits, it is
permissible to carry out work while the circuit
is live.
The user is responsible for stipulating the
necessary maintenance intervals specific
to the application depending on the
conditions of use, national directives and
standards.
Should the maintenance interval for the
function test of an RCB (ELCB) not be
defined, the manufacturer of the ECD
(ELCB) recommends to test the function
by the test button twice yearly.
The ELCB (RCD) shall release when the
test button is actuated. If this is not the
case, the protective function is no longer
guaranteed and the ELCB (RCD) shall be
replaced.
During servicing, above all the correct working
order of parts on which the explosion
protection depends, (e.g. intactness and
efficiency of the flameproof components, the
enclosure, the seals and cable entries), and
the switch mechanism function of the control
switches 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 Cooper Crouse-Hinds /
CEAG parts shall be used for carrying out
repairs.
In the event of damage to the flameproof
encapsulation, replacement of the
respective components is mandatory. In
case of doubt, the respective apparatus
shall be sent back to the manufacturer 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 60 079-19).
Ex-d components in Ex-e distribution boxes
may only be replaced by components of the
same type (electrical ratings and mechanical
size).
When replacing these individual built-in
components (flameproof circuit breakers,
contactors, measuring instruments,
pushbuttons, etc.), section 6.2 "Opening
apparatus / Electrical connection" shall be
observed.
Apparatus modifications or design changes
are not permitted; excepted from this are the
fitting of additional cable entries and the
installation of connection terminals within the
scope of the approvals for the respective
apparatus or according to details laid down by
the manufacturer.
9 Disposal / Recycling
The respective valid national regulations for
waste disposal shall be observed when
disposing of apparatus.
To facilitate 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.