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7/29/2019 IEC Ex Directives.pdf
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16A,JALAN R2/2, Rawang Integrated Industrial Park
48000 Rawang, Selangor. MALAYSIA
Tel +60123917347 Fax No.+603 6093 73491
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ATEX. Group.
Area Classification. Temperature Rating.
Ingress Protection.
Protection Types.
CONTENTS
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ATEX Directives
ATmosphere Explosible
Old Directives:- Specify the European standards
New Directives:- Specify the Essential Health andSafety Requirements.
Dust:- Explosive Hazardous areas are
regulated first time in European
Community (EC)
ATEX
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Before 1st. July 2003, there were three directives for equipment
intended for use in Hazardous Areas:
82/139/EEC (Mines): -
Was valid until 30th. June 2003
(Only Electrical Equipment)
76/117/EEC (Surface Industries: -
Was valid until 30th. June 2003
(Only Electrical Equipment)
New Directive: -
94/9/EC (ATEX) was valid from 1st.March 1996 and became mandatory from 1st. July 2003
(All Equipment, Protection Systems and Components)
ATEX
A
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Summary of Changes:-
Categorization of equipment matching area classifications.
Categorization based upon Essential Safety Requirements (ESR):
Consider electrical and non-electrical equipment, also dust
Ex hazardous areas.
Influencing equipment design with respect to:
Protection Method Choice of materials
Equipment Markings
Inclusive of Safety instructions
Environmental and Atmospheric conditions Inclusive of Software
It became mandatory to re-certify equipment certified under the old
directives, if we want to sell this equipment after 1st. July 2003
ATEX
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ATEX Marking Type of Protection
xxxx II 2 G EEx de IIC T4
ATEX
CE Marking
Identification codeof notified body
Ex Mark
Equipment Group
Category
Gas, Vapour,
Temperature
Classification
Equipment
Gas Group
Protection Type
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ATEX
Category of Equipment
II 2GATEX directive divides equipment into groups and additionalinto categoriesGroup 1 (Mines) Group II (Surface Industries )Subdivided into Categories Category Subdivided into Zone
M1 Equipment remains functional withan explosive atmosphere present
1G (Gas) Equipment with a very highlevel of protection
0 (gas)1D (Dust) 20 (dust)2G (Gas) Equipment with a high level
of protection1 (gas)
M2Equipment to be de-energized in
the event of an explosive
atmosphere
2D (Dust) 21 (dust)3G (Gas) Equipment with a normal level
of protection2 (gas)
3D (Dust) 22 (dust)Note: category 2D apparatus required for Zone 22 (conductive
dust)Examples of Category marking:1/2G for equipment interfacing Zone 0 and Zone 1 areas1/3D for equipment interfacing Zone 20 and Zone 22 areas(1) for associated apparatus with intrinsically safe output into Zone 0
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Equipment Group
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Temperature
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Protection Type
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KEMA 01 ATEX 1234 X
Approval Number EC
Notified Body
i.e SIRA, PTB,
TUV, etc Year of issue
Special
Conditions
Consecutive
number
ATEX directive
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Marking
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Marking
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Protection Concepts
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Gas Group
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Temperature Rating
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CO S
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THANK YOU
G G
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Gas Group