Mounting; Opening The Device/Electrical Connection; Cable Entry (Kle); Blanking Plug - Cooper Crouse-Hinds CEAG 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 terminal boxes GHG 791 01 and
GHG 791 02
6.1

Mounting

The terminal boxes can be mounted without
opening their enclosure.
In case the terminal boxess 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 terminal 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
Before 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 ina
acc. to 60 079-14.
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 international rules
(e. g. use of ferrules).
The table indicating the current load
values which is provided on the cover
inside of the terminal boxes is to be
observed.
In case of mixed equipment Ex e / Ex-i, the
required minimum distances will have to be
kept (see e.g. EN 60079-11).
When apparatus is open, it is necessary to
ensure (disconnect voltage supply) that
no voltage is carried over into the
connected intrinsically safe circuits.
The installation instructions for intrinsically
safe electrical apparatus shall be observed.
It is necessary to ensure that the permissible
external capacitance and inductance of the
special intrinsically safe circuits are not
exceeded.
6.3 Cable entries (KLE);
blanking plugs
Generally, only certified cable entries and
blanking plugs may be used.
Flexible cables are to be used with
trumpet-shaped cable glands or other
suitable entries with additional pull-relief.
The mounting directives applicable to the
fitted cable entries are to be observed.
When using cable entries with a lower IP
protection than that which applies to the
device (see technical data, page 9 + 10),
the IP protection of the whole device will
be reduced.
In order to establish the minimum protection
category, unused holes have to be closed
with a certified blanking plug.
Care has to be taken that when fitting the
cable entries, sealing inserts appropriate to
the cable diameter are used.
In case of sealing inserts that are cut out, it
will have to be ensured that the insert is
properly adapted to the cable diameter.
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.
Intrinsically safe circuits shall be fed through
cable entries that are colour-coded (light
blue).
All vacant metric COOPER CROUSE-HINDS
cable entries are to be closed with the
certified blanking plug for metric cable entries
(see page 8, fig. 1).
Cooper Crouse-Hinds GmbH
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