Cable Entry (Kle); Blanking Plug; Metal Plates And External Earth Connection; Closing Apparatus - CEAG COOPER Crouse-Hinds GHG 261 Mode D'emploi

Fig. 40 External earth connection
8 8 8 8 8
Cooper Crouse-Hinds GmbH
6.3 Cable entries (KLE);
blanking plugs
Inner wall of
the enclosure
Generally only certified cable entries and
Internal
blanking plugs may be used.
earth plate
Flexible cables shall be used with trumpet-
shaped cable glands or other suitable
entries with additional pull relief.
When using cable entries with a degree of
Internal earth
protection that is lower than the IP protection
connection
of the apparatus (see page 6), the degree of IP
protection for the complete unit is reduced.
The relevant mounting directives for cables
entries being used shall be observed.
In order to ensure the minimum degree of
protection, any unused entry holes shall be
sealed with certified blanking plugs.
When fitting cable entries, care has to be
taken that the sealing inserts are suitable for
the cable diameter.
In the case of sealing inserts that are cut out, it
is necessary to ensure that the insert is
properly adapted to the cable diameter.
In order to ensure the required minimum
degree of protection, the cable entries shall be
tightened down securely.
Overtightening can impair the degree of
protection.
Warning: When tightening the cap nut of the
metal cable entry (e.g. type ADL/ADE),a
suitable tool shall be used to safeguard the
gland against twisting.
Any unused metric CEAG cable entries shall
be sealed with the blanking plug certified for
these metric cable entries.
6.4 Metal plates and
external earth connection
In case an external earth connection is
mounted on the plastic enclosure, it should be
connected with a max. 25mm² wire.
This earth connection is inserted through a M6
drill in the inner wall of the enclosure (see fig. 4).
Warning: 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.
The switch handle on the cover of the switch
is to be set to the "ON" position.
When fitting the apparatus cover, care shall
be taken to ensure that the switch shaft of
the switch insert engages correctly in the
carrier hole of the switch handle.
To ensure the required minimum degree of
protection, the cover screws shall be tightened
down.
Overtightening may impair the degree of
protection.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 installation of the apparatus
shall be checked in accordance with these
operating instructions and other applicable
regulations.
The improper operation of safety switches
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
(EN 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, special attention shall be
given to checking the parts on which the
explosion protection depends (e.g. intactness
of the flameproof components, the enclosure,
the seals and cable entries).
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 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 (EN 60079-17, EN 60079-19).
Apparatus modifications or design changes
are not permitted; excepted from this is the
fitting of additional cable entries within the
scope of the apparatus approvals.
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.