Temperature Class & Auto-Ignition Temperature
Published 28 Jan 2021
Hazcon Inc.
Explosion Protection
& Hazardous Area Equipment
Hazcon Inc. provides a full suite of consulting services for manufacturers of electrical equipment for hazardous locations and explosive atmospheres.
Electrical equipment generates heat when in use and can therefore ignite explosive atmospheres. As a result, when an electrical device is installed in a hazardous environment where explosive gases are present, the device’s temperature class (the maximum surface temperature that the device may reach in service) must be considered.
Consider, too, the auto-ignition temperature of the gasses present where the device is to be installed: the temperature at which a mixture of air and that gas will spontaneously ignite without any additional source of ignition.
In this short animation, with some practical examples, we will explain the definitions of Temperature Class (T-class), auto-ignition temperature of explosive gases and how temperature class plays a significant role in the safe installation of electrical devices.
Further Reading
- Optical Radiation | A Source Of Ignition In Hazardous Areas
- Class I Division 1 Products & Hazardous Area Locations
- Class I Division 2 Products & Hazardous Area Locations
- The Importance Of Grounding Of Intrinsically Safe Devices In Hazardous Areas
- Find Out About Explosion Protection Techniques & Hazardous Area Equipment Protection Levels With Hazcon Apps
Information Courtesy
Behzad Nejad, P. Eng. (Hazcon)
Director & Consulting Engineer at Hazcon Inc.; Hazardous Locations Consulting Services; IECEx, ATEX, CEC & NEC
Specializing in the design, safety and approval of electrical equipment for hazardous locations.Â
Mr. Nejad has over 15 years of experience as an Electrical Engineer and is a sought after professional in the hzardous area and explosion protection industry. He is fully-qualified at the advanced level of all hazardous locations protection techniques including Intrinsic Safety & Non-incendive, Explosion Proof & Flame proof, Increased Safety, Non-arcing, Purging and Pressurization, Encapsulation, Optical Radiation, and Dust-tight enclosures. Mr. Nejad’s tenure in the industry includes six years at the CSA certification agency, working closely with manufacturers (Emerson, GE, ABB, Siemens, Endress-Houser, VEGA etc.) as a technical and certification engineer for Hazardous locations equipment.
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Thorne & Derrick are leaders in the development and distribution of Product Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
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