Intrinsic Safety

THORNE & DERRICK INTERNATIONAL
Experts in Equipment for Explosive Atmospheres
Intrinsic safety is one of the safest ways to ensure that an electrical device installed in a hazardous location cannot result in a fire or an explosion. Intrinsic safety is a system concept.
Intrinsic safety might seem confusing and involves complex calculations and detailed assessments. But it is not that difficult if we understand the principles behind it. It’s important to understand what intrinsic safety is, the safety of each component in the system, and how an intrinsically safe system is achieved.
In the above intrinsic safety animation, Hazcon Inc. has simplified the concept by focusing on:
The basic principles of an intrinsically safe system;
The three components of an intrinsic safety system;
How the components connect and work together to become an intrinsically safe system (Entity Concept)
For more information on Intrinsically Safe Products that T&D offer click here
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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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Your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to UK and international projects.
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THORNE & DERRICK INTERNATIONAL
Experts in Equipment for Explosive Atmospheres
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www.heatingand...

[@venkibvb]

Its very simple and very nicely explained please explain with some practical examples

[@InstrumentCalibration]

Great Explanation ..Loved how you made it so easy !!

[@Guitarplayer724]

Great job explaining the meaning of intrinsic safety. Thanks!

[@thorneandderrick85]

You are welcome, thanks for watching!

[@mohanthomas9050]

Simply superb.

[@kareemali1811]

very useful information

[@anhkhoaluu9374]

how did you do it can you share with me , thank you

[@mehulpatel9579]

👍🏻

[@JojiJose90]

Very informative video.. can you please also explain the scenario when the circuit is powered from hazardous area( active signals)?

[@elviodonato4605]

@JojiJose90 Since this morning I am struggling in finding this answer on the web. Still did not find it, though. My hypothesys is that the instrument will have Vo, Io, Po max out towards safety barrier. The contacts of the barrier supposed to be connected with input from field, (different from passive circuits) will have their maximum input Vi, Ii, Pi. Concerning the overall energy stored in C and L of barrier and cables should I still believe they should not exceed the max allowed by Instrument Co max and Lo max. (practically speaking the reverse of normal verification). I am looking for a confirmation but I could not find anything yet. Your question was raised long time ago but in the meantime did you manage to obtain the answer? it would be very helpful form me and maybe someone else with same question. Thanks in advance. Elvio

[@walidaitkhelifa8028]

This is an outstanding introduction. Thank you for sharing.

[@thorneandderrick85]

Thank you for your feedback

[@IHS979]

Great lesson Sir, please do all types of protection with animation.

[@aaaa_85]

what is the procedure to open IS instrument in hazardous location?

[@Morocco_Entire]

❤❤❤❤❤❤

[@Roberval.Bulgarelli]

Excellent, clear, simple and straightforward basic explanation of the main aspects and concepts of intrinsic safety. Congratulations!
Just a small conceptual comment: both "classified" and "unclassified" areas need to be considered and deemed as "SAFE".
Electrical, automation and instrumentation installations, in both cases, need to use equipment with appropriate "Ex" protection types (in classified areas) or associated equipment (in non-classified areas), in addition to performing the applicable installation, inspection and maintenance "Ex" service procedures, according to IEC 60079-14 and IEC 60079-17. 👍
Thus, it is suggested to use the term "UNCLASSIFIED AREA" or "NON HAZARDOUS AREA" instead of "SAFE AREA".

[@thorneandderrick85]

Thank you for your feedback!