Interchangeable Installations of Class/division vs Zone System-certified Products in Gas Explosive Hazardous Locations
Manufacturers of electrical equipment seeking North American certification may choose either Class/division marking or Zone marking. The Zone ...
Read More Can the Temperature Code of an Electrical Device exceed the AIT of the representative gas in a hazardous location?
Electrical equipment generates heat when in use and hot surfaces can ignite explosive atmospheres. It is therefore especially ...
Read More Equipment Assemblies in Hazardous Areas!
“Equipment assemblies” are defined in Clause 3.1 of IEC 60079-46 as a “pre-manufactured combination of Ex Equipment, together ...
Read More Class/ Division and Zone Ex Markings for Hazardous Locations in North America
Electrical equipment must carry the official mark or label of an accredited certifying agency, which indicates that the ...
Read More Certifications of North American Products for Dust Explosive Atmospheres
What is a “Dust Explosive Atmosphere”? Dust explosive atmospheres are locations that are hazardous due to the presence ...
Read More Should an Ex nA marking on your product be changed to Ex ec?
When Standards change, manufacturers should be aware of the changes and should update their certifications accordingly. A relatively ...
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