Ex-pert Electrical Technologies

Dynamic elaboration on the Art & Science of Hazardous Area Protection

Intrinsic Safety (IS)

Intrinsic Safety (IS) Technical Guideline : IEC 60079-11 (edition: 6.00 2011-06) Definition Type of protection based on the restriction of electrical energy within equipment and of interconnecting wiring exposed to … Continue reading

March 23, 2015

Increased Safety Terminal Box Power Dissipation

Maximum dissipated power of Terminal Box Enclosure IEC 60079-14 Let us first define an Electrical  Terminal / Junction Box An electrical junction  / Terminal box  is a container for electrical connections, … Continue reading

May 29, 2014

Equipment Protection Level

Equipment Protection Level (EPL) Its a Concept. This is a part of risk assessment method It has been introduced to enable an alternate approach to current methods of selecting Ex … Continue reading

September 16, 2013

Documentation & Certifications

  IEC 60079-14 gives us an over-view of the necessity & importance of the process of documentations for Hazardous Area Installations. By documentation we mean the material in Printed or … Continue reading

January 1, 2013


A haunting question. Is it a dilemma  or a  complete solution ….does it require the NEC-IEC vision… Let us see… We will use the following picture as a symbolic representation … Continue reading

December 10, 2012