What is the difference between ATEX and IECEx?
The main difference between ATEX and IECEx is that ATEX certification only applies for countries in the EU while IECEx certification is accepted globally. Hence, the IECEx certification is more widely recognised and accepted compared to ATEX certification.
Is IIC better than IIB?
Any equipment which is marked as IIC can be used in atmospheres that contain Group IIB and Group IIA gasses. Conversely equipment marked IIA cannot be used in IIB or IIC explosive environments….Gas Groups.
| GAS GROUPS | TYPICAL GAS EXAMPLE |
|---|---|
| IIB | Coke Oven Gasses, Ethylene |
| IIC | Acetylene, Carbon Disulphide, Hydrogen |
What does ex nA mean?
An “Ex nA” (non-arcing) marking, prior to a change in the International Electrotechnical Commission (IEC) Standards, was used to designate electrical devices safe to be installed and used in hazardous locations because of the specific protection technique for non-arcing equipment – absence of an ignition source.
What does ex DB EB mean?
Ex : Explosion protected. db : Flameproof ‘d’ with level of protection ‘b’. eb : Increased safe ‘e’ with level of protection ‘b’.
What is IIA IIB IIC?
– Group IIA—Atmospheres containing propane, or gases and vapors of equivalent hazard. – Group IIB—Atmospheres containing ethylene, or gases and vapors of equivalent hazard. – Group IIC—Atmospheres containing acetylene or hydrogen, or gases and vapors of equivalent hazard.
What is ATEX IIC?
What is an ATEX coding? The ATEX code is an alphanumeric string that denotes the certification achieved by the product along with the environment and conditions it is suitable for. The code can be broken down into a prefix, for example: CE0518 Ex II 2 G and suffix, for example: Ex d IIC T6 Gb.
What is difference between EXD and EExd?
They both are the same. Actually, only EExd notation is correct.
What is ATEX Type N?
Ex n or Reduced Risk protection is a standard of explosion protection applied to electrical equipment used in hazardous areas such that, in normal operating circumstances and in certain specified abnormal conditions, for example a hazardous area light fitting with a failed lamp, it is not capable of igniting a …
What is the difference between UL and ATEX?
UL or cUL instruments have been certified by Underwrites Laboratories for use in the US and Canada with ratings given for potentially explosive atmospheres, while ATEX Certification is a certification of equipment intended for use in potentially explosive atmospheres in the European Union.
Is IIB better than IIA?
Gases in Gas Group IIA require a higher ignition energy than Gas Group IIB. Gases in Gas Group IIC require the lowest ignition energy to ignite. As the table below shows, there are only 5 gases in Group IIC. Certifying your product for Gas Group IIA & IIB is usually sufficient to cover 98% of the market.
How do I read IECEx markings?
ATEX and IECEx markings
- Categories M1 and M2 are for equipment used in mines.
- Category 1 is for equipment intended for use in Zones 0 (gas) or 20 (dust)
- Category 2 is for equipment intended for use in Zones 1 (gas) or 21 (dust)
- Category 3 is for equipment intended for use in Zones 2 (gas) or 22 (dust)
Which is better EXD or EXE?
Ex d or “Flameproof” means that an enclosure or junction box is constructed and certified as Explosion Protected according to the “Flameproof” standard. Ex e, on the other hand, means that the enclosure is constructed and certified as “Explosion Protected” according to the “Increased Safety” standard.
What is the difference between DSEAR and ATEX?
ATEX applies to explosive atmospheres occurring at atmospheric conditions however the Chemical Agents Directive (CAD) and DSEAR cover both elevated temperatures and pressures. Explosive atmospheres are most often the result of an unplanned escape of combustible substances.
What is IECEx stand for?
International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres (IECEx System)