Flanges And Metal Plates; Closing Apparatus; Putting Into Operation; Maintenance / Servicing - Eaton CROUSE-HINDS serie Betriebsanleitung

Fig� 10
Connection of bolt terminals up to 240 mm²
Any unused metric Cooper Crouse-Hinds /
CEAG cable entries shall be sealed with the
certified blanking plug for metric cable entries�
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 50 mm².
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�
50
Explosion-protected 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�
At temperatures below -20° C it is important
to make sure that their is no explosive
atmosphere in the surrounding of the
distri butions. Observe relevant labels on the
distributions. For distributions with internal
heating, the switch on standby is signaled by
the thermostat.
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 EN/IEC 60079-17 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 (EN/IEC 60079-19).
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, pushbut-
tons, 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 manu-
facturer�
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�
GB