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
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
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
Befor opening the apparatus, it is
necessary to ensure that there is no
voltage or to take suitable protective
measures.
The electrical connection of the device may
only be carried out by skilled staff.
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 will have to 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 interna-
tional 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
Cooper Crouse-Hinds certifiedd 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.
6.5
Closing the device/
cover closure
Any foreign matter shall be removed from
the apparatus.
In order to ensure the required minimum
protection category, the cover screws are to
be tightened down.
Overtightening might impair the protection
category.
Cooper Crouse-Hinds GmbH
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