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Fig 1
1
Fig 2
1
2
Prior to being put into operation, the
boxes shall be checked in accordance
with the instructions as per section 6.
Before initial operation, any foreign
matter shall be removed from the
apparatus.
3
Conformity with standards
The explosion-protected enclosures have
been designed, manufactured and tested
according to the state of the art and to DIN
EN ISO 9001.
4
Field of application
The flameproof enclosures and distributions
are intended for use in potentially explosive
atmospheres in zones 1,2 and Zone 21, 22
accordance with EN 60079-14 or IEC 60079-10!
The enclosure materials used, including any
external metal parts, are high quality
materials that ensure a corrosion resistance
and resistance to chemical substances
according to the requirements for use in a
"normal industrial atmosphere":
- sheet steel and plastic powder coating
- stainless steel AISI 316 L
- aluminium alloy pressure casting
- galvanized steel.
Optionally, a surface protection for tropical
and sea climates, etc. is also available for
use in extremely aggressive atmospheres.
Flameproof enclosures, Series: GHG 6..
5
Use / Properties
2
Within the scope of the approvals, these
flameproof enclosures may be mounted
3
together on wall or floor frames using bus bar
boxes of the series "GHG 75. .." to form
distributions according to the building-block
principle.
Warning: The unit assembled via the bus
bar systems shall not exceed the overall
length of 6.00 m.
If necessary, individual system units with a
maximum length of 6.00 m can be built and
4
joined together at given points to form a
distribution installation.
3
On basis of the Ex type certificate from PTB,
the explosion-protected
enclosures,"conventional industrial
switchgears" can be built into, and can be
certified afterwards by means of an
appropriate acceptance by an authorized
person or inspection station.
The sole responsibility with respect to the
suitability and proper use of these boxes
lies with the operator.
6
Installation
Only fully certified enclosures or
distributions may be installed and put
into operation.
The relevant national regulations(e.g. BetriSiV,
the equipment safety law for Germany) and
the generally recognized rules of engineering
apply for the installation and operation.
6.1
Mounting
Mounting
Mounting
Mounting
Mounting
When the flameproof enclosures and
distributions are mounted directly onto
the wall or floor frames, they shall rest
evenly only on the fastening points
provided for this purpose.
Fixing dimensions are shown in the dimension
drawings on pages 8 and 9.
In order to be able to open the covers of
flameproof enclosures faultlessly, it is
absolutely essential to ensure that the
flameproof enclosures are assembled
without twisting (see technical data for
test torques).
The screw chosen shall fit the fixing hole
M12 for sizes 1,2,4,5 and 7
M20 for enclosures size 6
and shall not damage the hole (e.g. use of a
washer).
The number of screws used for fixing the
apparatus shall correspond to the number of
fixing holes in the enclosures.
Warning: The unit assembled via the bus
bar systems shall not exceed the overall
length of 6.00 m.
If necessary, individual system units with a
maximum length of 6.00 m can be built and
joined together at given points to form a
distribution installation.
On basis of the Ex type certificate from PTB,
the explosion-protected
enclosures,"conventional industrial
switchgears" can be built into, and can be
certified afterwards by means of an
appropriate acceptance by an authorized
person or inspection station.
The sole responsibility with respect to the
suitability and proper use of these boxes
lies with the operator.
Which flameproof enclosure cover belongs to
which enclosure base can be determined by
identical production numbers on the inside of
the enclosure cover and the front of the
enclosure base.
To combinate the flameproof enclosures with
bus-bar-boxes, all the seals between bus
bar boxes and/or also connection boxes
shall be inserted correctly. The parts can
then be screwed together using the screws
provided (M8 x 25). Also the stay washer
and toothed disk have to be used.
Excessive tightening can result in damage
to the flameproof enclosure or the
terminal or bus bar box.
6.1.1 Gehäuse Größe 5
mit Gewindebohrung M270
Optional ist das Gehäuse Größe 5
(430 x 430 x 329 mm) mit einer Gewinde-
bohrung M270 im Gehäuseboden erhältlich.
An der Gewindebohrung können Betriebsmit-
tel mit einer eigenständigen Zulassung
angeflanscht werden.
Weiter können Flanschplatten, oder ähnliche
mechanische Absperrungen mit diesem
Gewinde eingebracht werden.
Eine Volumenvergrößerung des Gehäuse-
volumen darf dadurch nicht entstehen.
Damit sich das Gehäuse und die an-
geflanschten Betriebsmittel, bzw. Flansch-
platten usw. nicht verdrehen können, muß
das Gewinde M270 mit geeigneten Maßnah-
men (z.B. verkleben o.ä) gesichert werden.
6.2
Opening the devices
Opening the device
Opening the device
Opening the device
Opening the device
Fig 1:
To open a flameproof enclosure without
switch, the interlocking screw, item 3, in the
cover cam of the cover stop has to be
unscrewed. The cover, item 2, can then be
removed from the base, item 1, by turning it
anticlockwise.
Cooper Crouse-Himds GmbH
9 9 9 9 9
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