PETROL STATION
GARAGE
FUEL STORAGE TANK
DECANTING OF FLAMMABLE LIQUID
FROM CONTAINER
TO CONTAINER
PETROL STATION FORECOURT
UNVENTILATED
GARAGE
INSPECTION PIT
FLAMMABLE MATERIAL
IN LIQUID FORM
ZONE 0
ZONE 1
ZONE 2
Area Classification
Zone Criteria
Gases
Dusts
Zone 0
Zone 20
Zone 1
Zone 21
Zone 2
Zone 22
WOLFLITE HANDLAMP H-251A
II 2 GD
EEx e ib IIC T4
IP66 T135
o
C
BAS 00 ATEX 2176
Do not open or charge in Ex areas.
Charge in charger unit C-251 HV/LV ONLY.
Recharge battery immediately after use.
Ne pas charger ni ouvrir l’appareil en zones Ex.
Ne recharger que sur des chargeur C-251 HV/LV.
Recharger immediatement les batteries dechargees.
Gerat nicht im Ex-Bereich laden oder öffnen.
Nur mit Ladegerät typ C-251 HV/LV aufladen.
Nach Gebrauch sofort wieder aufladen.
The Wolf Safety Lamp Company Ltd.
Sheffield - S8 0YA - England
Batch No.
1180
Ex Environment
1180
MARKING FOR DUST
IGNITION PROTECTION
to EN 50281-1-1
Ingress
Protection Code
Maximum External
Surface Temperature
Gas/Vapour
Gas
Temperature
Temperature
Group
Class
Acetic acid
IIA
T1
Acetone
IIA
T1
Acetylene
IIC
T2
Ammonia
IIA
T1
Benzene
IIA
T1
Butane
IIA
T2
Cumene
IIA
T2
Cychlohexane
IIA
T3
Ethanol (ethyl alcohol)
IIA
T2
Ethylene
IIB
T2
Hydrogen
IIC
T1
Methane (industrial)
IIA
T1
Methanol
IIA
T1
Petroleum
IIA
T1
Propane
IIA
T1
Toulene
IIA
T1
Turpentine
IIA
T3
Xylene
IIA
T1
A more comprehensive list of gases and vapours
is provided in IEC 60079-20
APPARATUS GROUPS AND
TEMPERATURE CLASSES FOR
COMMON EXPLOSIVE GASES
AND VAPOURS
CERTIFICATION CODE
gases, vapours and mists to EN 50014
ATEX MARKING
Ex EQUIPMENT LABEL
GROUP II GAS SUBDIVISION
Equipment sub-grouping segregates gases according to ease of ignitability by sparks or flames. These apply to flameproof Ex d and
intrinsically safe Ex ia/ib equipment only.
Explosion Protected equipment
‘E’ prefix denotes compliance
with CENELEC Standards in
the EN50014 series
Protection
Concepts
Gas Group Temperature
Classification
E Ex
e ib
IIC
T4
II
2
GD
EC-TYPE EXAMINATION CERTIFICATE NUMBER
ATEX Certificate
Serial
Number
BAS
00
ATEX
2176
IP66
T135°C
CE mark denotes
manufacturers’
declaration
of product
compliance to
all relevant EU
Directives
Number of
Notified Body
responsible for
EC monitoring
of production
quality
Specific
mark for
Explosion
Protection
Equipment
Category
Equipment
Group
Defines suitability
of use of Group II
equipment in gas
and/or dust
atmospheres
X
Suffix denotes special conditions of certification
U
Suffix denotes Ex component approval
Concept
General req.
Oil immersion
Pressurised
Powder filled
Flameproof
Increased
safety
Intrinsic safety
Encapsulation
Non-incendive
Symbol
–
Ex o
Ex p
Ex q
Ex d
Ex e
Ex ia
Ex ib
Ex m
Ex n
Category
–
2
2
2
2
2
1
2
2
3
EN Standard
EN 60079-0
EN 50015*
(EN 60079-6)
EN 60079-2
EN 50017*
(EN 60079-5)
EN 60079-1
EN 60079-7
EN 50020*
(EN 60079-11)
EN 60079-18
EN 60079-15
Description
General requirements
explosive gas excluded
by immersing ignition
source in oil
explosive gas excluded
by surrounding ignition
source with pressurised
inert gas
explosive gas excluded
by immersing ignition
source in sand
ignition within the apparatus
enclosure is contained and
will not ignite surrounding
explosive atmosphere
design excludes
the possibility of
incendive arcs, sparks
or hot surfaces
energy in circuit and
temperature on
components reduced
to a safe level
flammable gas excluded
by encapsulating the
ignition source in resin
will not ignite explosive
gas in normal operation,
faults unlikely to occur
Icon
PROTECTION CONCEPTS FOR ELECTRICAL APPARATUS
Ingress Protection rating:
I P 6 6
> 12.5mm
> 2.5mm
> 1mm
360
°
60
°
> 50mm
90
°
15
°
INGRESS PROTECTION (IP) CODE
to EN 60529
Ex equipment selection for use in gases, vapours, mists or dusts must take into consideration
the environmental conditions of the area in which it is to be used. Apparatus resistance to
ingress of both solid bodies and water is identified by use of an “IP rating”.
Year Certificate Issued
Notified body
responsible for
EC-Type
Examination
(Test House)
✓
✓
✓
✓
✓
✓
✓
✓
IIA
IIB IIC
IIA
IIB
IIC
II
all concepts
Ex d, Ex ia/ib
Ex e, Ex m, Ex p,
Ex o, Ex q, Ex n
Explosion
Protected
Equipment
no protection
IGNITION
TEMPERATURES
FOR COMMON
COMBUSTIBLE DUSTS
Dust Cloud
Ignition
Temperature
Aluminium
590°C
Coal dust (Lignite)
380°C
Flour
490°C
Grain dust
510°C
Methyl cellulose
420°C
Phenolic resin
530°C
Polythene
420°C
PVC
700°C
Soot
810°C
Starch
460°C
Sugar
490°C
A more comprehensive list of dusts is
provided in BS 7535. A database of
'Combustion and Explosion
Characteristics of Dusts’ is available at
www.hvbg.de/e/bia/fac/expl/
ATEX MARKING
CERTIFICATION CODE
gases, vapours & mists
MARKING FOR DUST
IGNITION PROTECTION
EC-TYPE EXAMINATION
CERTIFICATE NUMBER
Replacement parts specification
Safety measures to be applied in service
Serial/batch number
incorporating year of construction
Explosion protection mark (ATEX marking)
CE mark (ATEX marking)
Supplementary approval
Lloyds Register of Shipping
marine approval
EC NOTIFIED BODIES
Notified Bodies have been appointed by the governments of individual EC
countries as responsible to carry out part or all of the functions specified in
the ATEX Equipment Directive, such as EC type examination of equipment
and quality assurance assessment of equipment production.
Baseefa (2001) Ltd are responsible for the quality assurance assessment of
equipment manufactured by the Wolf Safety Lamp Company, this is identified
by their notified body number (1180) appearing below the CE mark on
Wolf products.
Mining
Industrial
1st Numeral
Protection Against Solid Bodies
2nd Numeral
Protection Against Water
Potentially
Explosive
Atmospher
e
EXAMPLE OF HAZARDOUS AREA ZONES
This diagram shows how hazardous area zones may occur in typical circumstances.
Protection concept identifies the means by which explosion protection is achieved.
* Shortly to be replaced by standard in brackets.
0 0
2 2
3 3
4 4
5 5
6 6
7
8
1 1
It is the user’s responsibility to ascertain if a particular product is safe and without risk to health and safety by virtue of its location in a hazardous area, i.e. classification of zones, gas groups, ignition temperatures, etc. Both the specifier and
user should be thoroughly familiar with the standards mentioned in this guide.
Whilst every care has been taken in the compilation of this document, the Company regrets that it cannot accept responsibility for any errors or omissions contained herein. Readers should not rely upon the information contained in this
document without seeking specific safety advice and ensuring that their own particular circumstances are in accordance with the matters set out.
© The Wolf Safety Lamp Company Limited 2000 & 2005. Do not reproduce without prior permission from the company. MM Design Limited, Sheffield. Printed in England MM/WK/04.05/10K
SL008 ISSUE 1
TEMPERATURE CLASS
Temperature class relates to the hot surface ignition temperature of a particular explosive
atmosphere. It must not be exceeded by the temperature classification of the equipment
intended to be used in that atmosphere.
Hot surfaces can ignite explosive atmospheres
T1 T
2
T3 T
4 T
5 T
6
Risk of ignition
Explosion Protected
Equipment
T1
T2
T3
T4
T5
T6
450°C
300°C
200°C
135°C
100°C
85°C
1st numeral and 2nd numeral
combined to identify level of
ingress protection, e.g. dust tight,
protected from high power water
jets/heavy seas:–
Group
Typical Hazard
Maximum Safe
Maximum Safe Gap
Applicable
Sparking Energy
Flameproof Ex d
Concepts
Intrinsic Safety Ex ia/ib
I
Methane
IIA
Propane
IIB
Ethylene
IIC
Hydrogen/Acetylene
II
All Gases
narr
ow wide
flamepr
oof
gap size
less mor
e
energy r
equir
ed
to ignite gas
ASSOCIATED STANDARDS
Explosive Atmospheres. Explosion prevention & protection
Basic concepts and methodology
EN 1127-1
Electrical equipment for use in potentially explosive gases,
vapours and mists - associated non-concept standards
Classification of hazardous areas
EN 60079-10
Electrical installations
EN 60079-14
Inspection and maintenance of electrical installations
EN 60079-17
Repair and overhaul of apparatus
IEC 60079-19
Data for flammable gases and vapours
IEC 60079-20
Electrical apparatus for use in the presence of combustible dusts
Protection of enclosures “tD”
EN 61241-1
Classification of areas
EN 61241-10
Selection, installation and maintenance
EN 61241-14
Protection by encapsulation
EN 61241-18
Non-Electrical Equipment for use in potentially explosive gases,
vapours, mists and dusts
Basic method and requirements
EN 13463-1
Protection by constructional safety “c”
EN 13463-5
Protection by liquid immersion “k”
EN 13463-8
These standards relating to apparatus for dust and non electrical
equipment are being supplemented by further standards for specific
concepts of protection.
Standards available from: British Standards Institution, 369 Chiswick High Road,
London W4 4AL www.bsi-global.com
KEY
< = less than
> = more than
AMBIENT TEMPERATURE
Equipment approved to the
CENELEC standard have T. class
based on use in an ambient of
-20°C to +40°C unless otherwise
stated (ie. T amb. = 35°C)
+40
0
C
–20
0
C
CLASSIFICATION OF
HAZARDOUS AREAS
To EN 60079-10
Hazardous areas are classified
into zones on the basis of the
frequency and duration of the
occurrence of an explosive
atmosphere. Durations on
table are typical.
present continuously or for long periods
(>1000hrs per annum)
likely to occur in normal operation occasionally
(>10hrs, <1000hrs per annum)
unlikely to occur in normal operation,
if it does will only be for short periods
(<10hrs per annum)
HPR 3.75V min. 0.75A max.
Battery 4V, 5Ah
3.6 min. 1.0A max.
type H-66 ONLY
Potentially Explosive
Atmospher
e
Ex Equipment
no protection
Risk of ignition
Explosive atmosphere
consisting of a mixture with
air of flammable substances in
the form of gas, vapour or
mist, or a cloud of
combustible dust in air.
Spark
Ignition
Flameproof flange gap on
Ex d equipment
‘CE’ MARKING AND THE 94/9/EC ATEX DIRECTIVE ON EQUIPMENT
AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY
EXPLOSIVE ATMOSPHERES.
MANDATORY WITHIN THE EU
‘CE’ marking has been introduced as part of the European Union’s new approach to technical harmonisation
as a means of identifying products that comply with all relevant EC Directives.
Subject to certain safeguards, products bearing the ‘CE’ mark are permitted to be sold throughout the EU
without interference from national regulatory authorities. The Directives have been put in place in order to
remove artificial trade barriers within the European Union previously caused by individual countries’ national
standards, a secondary function is as a means of regulating safety.
The
Explosive Atmospheres 94/9/EC ATEX (Equipment) Directive
became
mandatory on 1 July 2003.
On this date the existing Explosive Atmospheres and Gassy Mines Directives were
repealed. Since then only equipment and systems ‘CE’ marked as compliant with the ATEX
Equipment Directive (and all other relevant mandatory directives) may placed on the market within the EU.
The Directive applies to all equipment and systems for use in potentially explosive atmospheres within the EU.
The scope of the Directive includes electrical and mechanical equipment for use in Group I (mining) or Group II
(industrial) applications, both on and offshore and considers risks of ignition of potentially explosive gas, vapour,
mist and dust atmospheres. In addition, devices intended for use outside potentially explosive atmospheres that
contribute to the safe functioning of equipment and systems with regard to explosion risk are also included.
Compliance of products to the ATEX Equipment Directive, through conformity assessment, takes a modular
approach, and is generally in two stages; design and production.
A common route to product design compliance is to apply to a Notified Body (Ex. Test House) for an EC
Type Examination Certificate. To comply, the equipment or system must meet the Essential Health and Safety
Requirements (EHSRs) listed in the Directive. Harmonised EU standards have been adopted by CENELEC and
CEN, relating to the design, construction and testing of equipment; a product complying with these standards
is deemed to meet the EHSRs to which the standards relate. Where apparatus follows a protection concept
not covered by these standards, compliance to the 94/9/EC Directive is still possible by compiling a ‘Technical
File’ from first principles, demonstrating compliance through test and assessment to the EHSRs relating to
design and construction of equipment for use in explosive atmospheres.
The production quality stage of the conformity assessment procedures ensure continued product compliance
in manufacturing. Typically a manufacturer should have a certified ISO 9000 quality management system and
comply with one of the quality modules in the ATEX Equipment Directive, however this will vary depending on
product equipment category; equipment used in higher risk areas will require more onerous conformity
assessment procedures to be applied.
In addition to the 94/9/EC ATEX (Equipment) Directive, products for use in potentially explosive atmospheres
may require to be compliant with other Directives including the 89/336/EEC Electro-Magnetic Compatibility
(EMC) Directive, which became mandatory on 1/1/96. This Directive applies to virtually all electrical and
electronic apparatus potentially able to generate interfering emissions or exhibit an undue sensitivity to
interference sources.
Once compliance with the relevant Directives is complete and an EC Declaration of Conformity issued by the
manufacturer, the ‘CE’ mark may be applied and the product placed on the market.
The ATEX Equipment Directive in full, and EC Commission guidance on the Directive, may be found on the
following website: http://europa.eu.int/comm/enterprise/atex/index.htm
99/92/EC ATEX (WORKPLACE) DIRECTIVE ON MINIMUM
REQUIREMENTS FOR IMPROVING THE SAFETY AND HEALTH
PROTECTION OF WORKERS POTENTIALLY AT RISK FROM
EXPLOSIVE ATMOSPHERES.
WORKPLACES IN OPERATION BEFORE JULY 2003 MUST
COMPLY BY JULY 2006.
WORKPLACES COMING INTO USE AFTER JULY 2003 MUST
COMPLY IMMEDIATELY.
The Directive covers both Group I and Group II activities, on shore and offshore within the EU, and aims to
provide a better level of protection for the health and safety of workers in potentially explosive gas, vapour,
mist and dust atmospheres.
It lists a set of obligations and safety measures for employers, requiring the adoption of a coherent risk
assessment based strategy for the prevention of explosions. These obligations include:
• Generation of an explosion protection document, evaluating explosion risk, including: likelihood of the
presence of the explosive atmosphere, the presence of ignition sources (including electrostatic discharge),
identification of the substances and processes in use, definition of specific measures taken to safeguard
the health and safety of workers.
• Classification of areas into zones and marking points of entry with safety signs.
• Appropriate training and supervision for workers.
• Use of written instructions and permits to work.
• Special requirements for work equipment:-
– Equipment in service before 30 June 2003 may continue to be used after this date if it has been risk
assessed and the explosion protection document indicates it can be safely used.
– Equipment brought into service after 30 June 2003 must be CE marked as compliant with the
94/9/EC ATEX (Equipment) Directive.
• Due consideration of explosion protection measures, encompassing issues such as:
– Control of releases.
– Use of protective measures appropriate to the greatest potential risk.
– Selection of appropriate equipment by referencing the explosion protection document.
– Ensuring equipment is correctly maintained and operated.
– Minimising the risk of explosion and the effect of explosion in the workplace.
– Provision of suitable warning and escape facilities.
99/92/EC
is a separate directive specifically covering workers in explosive atmospheres, working
within the more general
89/391/EEC Directive
on the
introduction of measures to
encourage improvements in the safety and health of workers at work.
The ATEX Workplace Directive in full may be found on the following website:
http://europa.eu.int/comm/enterprise/atex/index.htm
DSEAR – THE DANGEROUS SUBSTANCES AND EXPLOSIVE
ATMOSPHERES REGULATIONS 2002.
In the UK the 99/92/EC ATEX workplace Directive will be implemented as The Dangerous Substances and
Explosive Atmospheres Regulation 2002 (DSEAR). These regulations will also include the safety aspects of
the 98/24/EC Chemical Agents Directive, resulting in flammable and dangerous substances being covered
by a single set of regulations, thus reducing the volume of legislation covering this area.
A copy of the DSEAR regulations is available at:
http://www.hmso.gov.uk/si/si2002/20022776.htm
A guide to DSEAR, published by the Health and Safety Executive can be downloaded at:
http://www.hse.gov.uk/fireandexplosion/dsear/htm
Industrial
Mining
Equipment
Equipment
Protection
Hazard
Use
Group
Category
Level
Gas Dust
I
M1
Very high
–
–
Operable in Ex
protection atmosphere
M2
High
–
–
De-energised
protection
in Ex atmosphere
II
1
Very high
G
Zones 0,1,2,
protection
D
Zones 20,21,22
2
High
G
Zones 1,2
protection
D
Zones 21,22
3
Normal
G
Zones 2
protection
D
Zones 22
EQUIPMENT GROUP & EQUIPMENT CATEGORY
Equipment Group and Category identify the areas in which equipment may be safely used
This guide is provided to aid in the selection of Wolf lighting products for use in potentially explosive atmospheres. Information given is based on practice within the EU, as specified in the requirements of the 94/9/EC ATEX (Equipment) Directive and the 99/92/EC ATEX (Workplace) Directive.
Wolf Safety Lamp Company
Saxon Road Works, Sheffield S8 0YA England
tel:
0114 255 1051
fax:
0114 255 7988
e-mail:
web:
www.wolf–safety.co.uk
Wolf Safety Lamp Company
ATEX Explained
Note: ‘EEx’ and Protection Concepts are not marked if a ‘Technical File’
from first principles is applied.
For details of our full range of explosion protected lighting products visit our website listed below or contact Wolf to request data sheets.
GAS GROUP
Wolflite Primary Cell Handlamp H-4DCA
II 2 GD EEx e ib IIC T4 IP66 T135°C
BAS00ATEX2203
Wolf Hazard Lamp HL-95
II 1 G EEx ia IIC T4
BAS99ATEX1044
Wolf ‘Zone 0’ Headtorch HT-200
II 1 G EEx ia IIC T4/T3
Baseefa04ATEX0398
Wolf Flameproof Leadlamp
II 2 G EEx d e IIC T4/T3
DMT03ATEXE279
Wolf ATEX Turbolite
II 2 GD II T4 (Tamb=55°C) T135°C
SIRA02ATEX5099X
Wolf Rechargeable Torch R-30
II 2 GD EEx e ib IIC T4 IP67 T135°C
Baseefa05ATEX0068
Wolf EX GLS Leadlamp
II 2 G EEx d e IIA T3
IBExU03ATEX1018X
A-TL45A
A-TL44A
Wolflite Rechargeable Handlamp H-251A
II 2 GD EEx e ib IIC T4 IP66 T135°C
BAS00ATEX2176
TS-26/TS-24/TS-24+
TR-26/TR-24/TR-24+
Wolf ATEX Safety Torches
II 2 GD EEx e ib IIC T6 IP67 T65°C
II 2 GD EEx e ib IIC T4 (Tamb=40/55°C)
IP67 T95°C (Tamb=55°C)
BAS02ATEX2220X
Wolf Ex-Penlite PL-01
II 2 G EEx e ia IIC T4
TÜV00ATEX1529
Wolf LiteTracker
™
and Bikelite
II 1 G EEx ia IIC T4
BAS99ATEX1017
9888 ATEX poster 05® for pdf 17/5/05 11:14 am Page 1
