GENERI, s.r.o.
Uničovská 50
787 01 ŠUMPERK
USER'S MANUAL
Page:
1
of
3
EXPLOSION-PROOF SWITCHGEAR BOX
TYPE:
X450DA2/d
N740058
– 4rd edition
Valid from:
28.1.2020
Tel.: +4220583221500, Fax: +420583214183
GENERAL
This User’s Manual has been drawn up in accordance with:
Technical requirements for equipment and protective systems
intended
for
use
in
potentially
explosive
atmospheres
(2014/34/EU).
Technical requirements for products from the point of their
electromagnetic compatibility
(2014/30/EU).
SAFETY GUIDELINES AND IMPROPER USE
Do not leave this User’s Manual in the switchgear box during
operation!
•
Do not operate
X450DA2/d
switchgears in SNM
mine areas
(SNM3)
according to ČBÚ Decree No.
22/1989 Coll.,
or in explosive atmospheres
(hazardous conditions 1)
according to ČSN EN 1127-2.
•
Do not operate X450DA2/d switchgears in Zone 0
explosive gas atmospheres (ČSN EN 60079-10-1) and
Zone 20 and 21 explosive dust atmospheres (ČSN EN
60079-10-2)
•
The cable glands must always be in the
Ex “d”
design
(flame-proof enclosure) according to ČSN EN 60079-1
•
In the case of cable entry through cable glands with a
sealing ring
, only use
compact
and
round
cables with
sheathing made of
thermoplastic
,
thermoset
or
elastomeric materials
. The bedding and sheathing
must be
extruded
and the bedding material, if used,
non-absorbent. The
cable
must be at least
3 m long
!
•
There may be
parts with hot surfaces, i.e.
hazardous temperature inside
the X450DA2/d
switchgear.
Open the switchgear only in the
absence of explosive atmospheres and in a non-
voltage state after a sufficient time since its
deactivation
to allow the hot parts to cool.
•
X450DA2/d switchgears are not designed for non-
professional use.
Installation, start up and any service
whatsoever must be performed by workers with
professional expertise and in conformance with safety
regulations.
•
Operate
X450DA2/d switchgears in accordance with
the following operating conditions, technical and label
data.
•
Do not replace the existing internal equipment of
the switchgear with equipment inconsistent with
the documentation supplied with the product
(e.g.
replacement of an existing 6A circuit breaker with a
10A circuit breaker).
•
If the switchgear contains a
current protector
,
regularly verify their function at least every 6
months
using the test button (while observing
applicable safety regulations).
•
Some
mining cables (e.g. type CBEH)
have individual
wires provided with a semi-conductive removable layer.
Always remove this layer
before connecting the
wires!
•
Switching and protective devices inside switchgears
may
produce
short-term
electromagnetic
interference
and therefore have to be used in
industrial zones, where they do not have a negative
impact on other equipment.
•
Carry out storage, transport, assembly, installation,
revision and preventive maintenance, repairs and
service in accordance with the instructions stated
hereunder.
1. USE
Switchgears X450DA2/d are designed primarily for installation in
mines containing methane, in areas with explosive gas atmospheres,
in areas with explosive atmospheres with flammable dust and areas
with a risk of fire or explosion of explosives.
2. OPERATING CONDITIONS
2.1. External influences
in accordance with
ČSN 33 2000-5-51
–
Category A:
ENVIRONMENT
Code
Description of external influence
Specification
AA
Ambient temperature Ta
-20 °C to +40°C
AB
Atmospheric humidity
up to +30°C ..
100%
up to +40°C ...
70%
AD4
Presence of water
spraying water
AE4
Presence of foreign solid particles
light dustiness
AF4
Presence of corrosive substances or
contaminants
permanent
AG3
Impact
strong (20J)
AH
Vibrations
see Article 6 –
Revision
2.2. External influences
in accordance with
ČSN 33 2000-5-51
–
Category B:
USE
Code
Description of external influence
Specification
BE3N1
Risk of explosion of combustible dust
see section
2.4
BE3N2
Risk of explosion of flammable gases and
vapours
see section
2.4
BE3N3
Risk of explosion of explosives
see section
2.4
BA5
Skills of persons
knowledgeabl
e persons
BC3
Contact of persons with earth potential
frequent
2.3. Unspecified external influences are normal
in accordance
with ČSN 33 2000-5-51.
2.4. Use in areas and atmospheres in accordance to installation
regulations
Areas
Standard name (version)
Standard
SNM
(SNM0,SNM1,
SNM2)
ČBÚ Decree
(version
I M2
)
ČBÚ No. 22/1989
Coll.,
s. 232, s. 233
ČBÚ No. 75/2002
Coll.,
Explosive
atmospheres
(hazardous
conditions 2)
Explosive atmospheres –
Explosion prevention and
protection – Part 2: Basic
concepts and methodology
for mining.
(version
I M2
)
ČSN EN 1127-2
ZONE 1, 2 IIA,
IIB
Explosive atmospheres
– Part 10-1: Classification of
areas
– Explosive gas
atmospheres (version
II
2G/3D
)
ČSN EN 60079-10-1
ZONE 22 IIIA,
IIIB T>71°C
Explosive atmospheres
– Part 10-2: Classification of
areas
– Explosive dust
atmospheres
(version
II 2G/3D
)
1)
ČSN EN 60079-10-2
V1, V2
Regulations for electrical
equipment in areas with a
risk of fire or explosion of
explosives
ČSN 33 2340
1)
The device is designed for fixed installation, where the installation
is supposed to minimize the risk of electrostatic discharge – see
EN TR 50 404 a IEC/TS 60 079-32.
