E2S BExL25D Manual De Instrucciones

1) Introduction
The BExL25D and BExL15D are second generation
flameproof loudspeakers which are certified to the European
Standards EN 50014: 1992 and EN 50018: 1994 and meet
the requirements of the ATEX directive 94/9/EC. The
loudspeakers can be used in hazardous areas where
potentially flammable atmospheres may be present. There
are three versions of each loudspeaker, 8 ohm, 16 ohm or
100V Line transformer. On 100V line transformer units there
are four output tappings for each size of loudspeaker. The
BExL25D unit produces output levels in the 117dB(A) range
and the BExL15D unit produces output levels in the 112dB(A)
range. Both loudspeakers can be used in Zone 1 and Zone 2
areas with gases in groups IIA, IIB and IIC and temperature
Classifications of T1, T2, T3 and T4.
2)
Marking
All units have a rating label, which carries the following
important information:-
BExL25D or BExL15D
Unit Type No.
Impedance: 8 ohm or 16 ohm
100V Line
EEx d IIC T4 (T
Code:
KEMA 99ATEX6312
Certificate No.
Epsilon x:
Gas Group and
Category:
CE Marking:
Notified Body No.
Warnings:
DO NOT OPEN WHEN AN EXPLOSIVE
GAS ATMOSPHERE IS PRESENT
COVER BOLTS CLASS A4-80
USE HEAT RESISTING CABLES AND CABLE
GLANDS
(Rated 95ºC) AT AMB. TEMPERATURES OVER
40ºC
Year of Construction /
Serial No.
3)
Type Approval Standards
The loudspeakers have an EC Type examination certificate
issued by KEMA and have been approved to the following
standards:-
EN 50014 : 1992 + prA1
EN 50018 : 1994 + prA1
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2423-P Issue B
INSTRUCTION MANUAL (ATEX)
BExL25D and BExL15D
°
. –50 to +55 C)
amb
II 2G
0344
i.e. 02 / 1L23000001
General Requirements
Flameproof Enclosure 'd'
17-04-02
4)
Installation Requirements
The loudspeakers must be installed in accordance with the
latest issues of the relevant parts of the BS EN 60079
specifications or the equivalent IEC specifications –
Selection, Installation
apparatus for use in potentially explosive atmospheres (other
than mining applications or explosive processing and
manufacture):-
BS EN 60079-14 : 1997
BS EN 60079-10 : 1996
The installation of the units must also be in accordance with
any local codes that may apply and should only be carried
out by a competent electrical engineer who has had the
necessary training.
5)
Zones, Gas Group, Category and Temperature
Classification
The BExL25D and BExL15D loudspeakers have been
certified EEx d IIC T4 (Tamb. –50 to +55ºC). This means that
the units can be installed in locations with the following
conditions:-
Area Classification:
Zone 1 Explosive gas air mixture likely to occur in
normal operation.
Zone 2 Explosive gas air mixture not likely to occur,
and if it does, it will only exist for a short time.
Gas Groupings:
Group IIA
Group IIB
Group IIC
Equipment Category:
Temperature Classification:
Ambient Temperature Range:
-50°C to +55°C
6)
Loudspeaker Location and Mounting
The location of the loudspeakers should be made with due
regard to the area over which the unit must be audible. The
loudspeakers should only be fixed to services that can carry
the weight of the unit.
Sheet 1 of 4
Flameproof Loudspeakers
and maintenance
Electrical Installations in Hazardous
Areas (other than mines)
Classification of Hazardous Areas
Propane
Ethylene
Hydrogen and Acetylene
2G
o
T1 400 C
o
T2 300 C
o
T3 200 C
o
T4 135 C
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www.e2s.com Fax: +44 (0)208 740 4200
of electrical
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