ATEX - Baseefa - IEC
ATEX - Baseefa - IEC
ATEX - Baseefa - IEC
Aim: One single certificate for any A common approach to lifting barriers to
hazardous area product recognised and trade within the European Economic Area
accepted throughout the world. (EEA).
60079-18**
Ex ma
Ex mb
Ex ma
Ex mb Encapsulation
0
1
20
21 IECEx BAS08.0001X Maximum External
Surface Temperature
Equipment
Ex mc Ex mc 2 22
Ex de IIC T4 Gb under 250mm of dust Protection Level
*Recently published standard combining gas and dust requirements for the first time. Maximum External
**Soon to be published with combined gas and dust requirements.
Ex tb IIIC T135ºC T250 180ºC Db IP66 Surface Temperature
Equipment
protection Zone
Tamb-30ºC to + 50ºC Ambient Range level
Temperature Class -20°C to 40°C unless Ga 0
ABC Engineering stated on label
Gb 1
Gas Group Buxton, SK17 9RZ, UK Manufacturer’s Name
240V ac Gc 2
Protection Concept 5A and Address
Da 20
Type XYZ Solenoid Electrical Parameters
Dust Group
Temperature Class 2008 s/n 1234 Product Identification
Db
Dc
21
22
Equipment Protection
T Class Maximum Surface Levels Serial No. and Year Ma energised
II 2GD 1180 of Manufacture
Temperature Ingress Protection Mb De-energised*
T1 450°C
ATEX Coding
Baseefa08ATEX0001X ATEX Notified Body
G=gas, D=dust, M=mining
Identification No.
T2 300°C *in presence of explosive atmosphere
T3 200°C ATEX Certificate No.
T4 135°C
T5 100°C
T6 85°C IEC 61508 - Safety Systems EU
Explosive
ATEX Coding
atmosphere II 2 GD
IEC/EN 61508 is the international standard for electrical, electronic and
symbol
programmable electronic safety related systems. It sets out the requirements
for ensuring that systems are designed, implemented, operated and
maintained to provide the required safety integrity level (SIL). Four SILs are
defined according to the risks involved in the system application, with SIL4 Equipment Equipment
being used to protect against the highest risks. group category
Gas Groups Dust Groups IEC 61508 is becoming increasingly relevant in the assessment of ATEX
Safety Related Devices. M1 - energised
Gas Representative Dust I - mining
Group Test Gas Group M2 - de-energised (*)
The standard is in seven parts: Gas Dust
I Methane
(mining only) IIIA Combustible flyings IEC 61508-1, General requirements 1 - very high 0 20
IIA Propane IEC 61508-2, Requirements for E/E/PE safety-related systems protection
IIB Ethylene IIIB Non-conductive dust IEC 61508-3, Software requirements II - non-mining
IEC 61508-4, Definitions and abbreviations 2 - high protection 1 21
IIC Hydrogen IEC 61508-5, Examples and methods for the determination of safety integrity 3 - normal protection 2 22
Gases are classified according to the IIIC Conductive dust levels
ignitability of gas-air mixture.
Refer to IEC/EN 60079-20 for classification IEC 61508-6, Guidelines on the application of IEC 61508-2 and IEC 61508-3 (*) = in presence of explosive atmosphere
of common gases and vapours. IEC 61508-7, Overview of techniques and measures