ATEX, UL & IECEx Guide
Please note that Radio Industries Australia Pty Ltd does not classify or take responsibility for the Hazardous Location Settings mentioned in this page, this is just a guide. Please consult your Safety Department for your exact Hazardous Location requirements.
What is Intrinsically Safe?
Intrinsically safe is a term used to describe a collection of devices and equipment that meet the requirements set out by the certification body (ATEX, UL or IECEx) to determine that device or equipment’s safety when used in a hazardous environment.
What is a Hazardous Environment?
A Hazardous Environment is an area where fumes, dust, gas or vapour may cause a fire or explosion when an ignition source is used in the area. For example, you may see a ‘No Naked Flames’ sign in your petrol station when filling up your car, this is because the area is classed as a Hazardous Environment. People who use devices like Two-Way Radios in these environments need to ensure that the device itself complies with the standard set for that particular zone. Often a safety officer will have this information to hand and be able to direct you as to what type of equipment you need for different areas of your plant.
What is the difference between ATEX, UL and IECEx?
The difference between these three is the testing/classification body.
Each rating is created by a recognised standards body with ATEX Being European, UL being American and IECEx often used for international standards. Your company may choose a specific standard to base decisions from.
Download the CML ATEX/IECEx Guide HERE - https://www.cmlex.com/wp-content/uploads/hazardous-area-guide.pdf
An ATEX Label will tell you exactly where the equipment can be used based on the Equipment classification and Zones specified. All of the numbers and letters on the label correspond to the level of protection offered and in what environments the equipment can be used. Please consult your safety supervisor for the correct equipment class you require based on the zones you are subject to.
ATEX Equipment is classified by Group, Type of protection, Gas/Dust Group, Temperature class and equipment protection level.
Areas where ATEX must be used is classified by Zones. Each Zone is for a particular Hazardous Environment. Each Zone is explained below. You will then need to use equipment suitable and certified for use the Zone.