Mounting; Opening The Device/Electrical Connection; Cable Entries (Kle); Blanking Plugs - Eaton CROUSE-HINDS GHG 791 01 Mode D'emploi

Fig. 2
Size 1 apparatus holder for GHG 791 01
for wall-
and
channel
fixing
B
for pipe
fixing
Size 2 apparatus holder for GHG 791 02
for wall
and
channel
fixing
B
for pipe
fixing
Explosion protected junction boxes,
type GHG 791 01 and GHG 791 02
6.1

Mounting

X
Perm. ambient temperature lower -20 ° C:
ATEX - IEC
The junction box type GHG 791 01 was tested
with an impact energy of 4 J and has to be
installed in a way that it is protected against
higher mechanical risk.
The junction boxes can be mounted without
opening their enclosure.
If cable entries are used from the top, mount
only in dry rooms or attach protected from
moisture.
In case the junction boxes are mounted directly
onto the wall, they may rest evenly only at the
respective fastening points. The chosen screw
shall match the fastening hole (see dimensional
drawing) and it must not damage the hole (e. g.
use of a washer).
The device shall be fastened diagonally with at
least 2 screws.
If the screws are overtightened, the apparatus
can be damaged.
The junction boxes are suitable for fixing onto
EATON / COOPER CROUSE-HINDS apparatus
holders size 1+ 2 by means of self-cutting
screws (see fig. 2, fixing point "B").
The respective mounting instructions shall
be observed.
6.2 Opening the device/
Electrical connection
The electrical connection of the device may
only be carried out by skilled staff
(IEC/EN 60079-14).
Before opening the apparatus, it is neces-
sary to ensure that there is no voltage or to
take suitable protective measures.
The insulation of the conductors shall reach
up to the terminal. The conductor itself shall
not be damaged.
The properly bared conductors of the cables
shall be connected, taking into account the
respective regulations.
The connectible min. and max. conductor
cross-sections shall be observed (see technical
data).
All screws and/or nuts of the supply terminals,
also of those remaining unused, shall be
tightened down.
The conductors shall be connected with
special care in order to maintain the
explosion category.
The supply terminals are designed for the
connection of copper conductors.
If multi- or fine-wire connecting cables are used,
the wire ends will have to be handled in acc.
with the applicable national and international
rules (e. g. use of ferrules).
If more than 4 cables are introduced into the
GHG 791 02 junction box, one terminal block is
to be fitted with the PE bridge joined.
6.3 Cable entries (KLE);
blanking plugs
To maintain the minimum degree of protection
all unused entries are to de closed using the
EATON / COOPER CROUSE-HINDS certified
blanking plugs which are supplied loose inside
of the junction box (see page 4, fig. 1).
In case of sealing inserts that are cut out, it
shall be ensured that the insert is properly
adapted to the cable diameter. Care has to be
taken that when fitting the cable entries,
sealing inserts appropriate to the cable
diameter are used.
When using cable entries for fixed cables it is
necessary to ensure that no inadmissible high
mechanical stress is applied to the cable entry
or its seal.
In order to ensure the required minimum
protection category, the cable glands are to be
tightened down.
Overtightening might impair the protection
category.
If metal glands are being used, the junction box
version with the internal metal frame is to be
used. To maintain the minimum degree of
protection a sealing washer is to be used under
the metal gland.
When using metal cable entries with a lower IP
protection than that which applies to the device
(see page 7 , technical data), the IP protection of
the whole device will be reduced.
The mounting directives applicable to the cable
entries used shall be observed.
Attention: The metal frame and metal glands
are to be integrated into the potential
equalization.
GB
9