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  • Author Author: rscasny
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What Type of Fuse is Recommended to be Used in a Hazardous Location?

Based on the properties of flammable gases, vapors and combustible dust that are present in an installation, a location can be designated as a hazardous location. Numerous organizations write standards for the safe operation of electrical and electronic equipment for locations with explosive atmospheres. OSHA, IEC, NEC, CEC, NFPA, ATEX, etc. have developed frameworks for classifying hazardous locations.

 

When an abnormal condition (such as a capacitor failure, IC short, etc.) occurs in an electronic circuit, an electrical fault can be created that, if not controlled quickly, can quickly cause thermal runaway, which is very hazardous, particularly in environments filled with potentially explosive gases, fuels, or dust.

 

Poll Question: What Type of Fuse is Recommended to be Used in a Hazardous Location?

 

To learn more about fuses used in hazardous locations, go here: What Are Intrinsically Safe Fuses?

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  • This reminded me of the first gas station I was a part of wiring. A term used in the electrical field is “horse ***”. It is an explosion proof flexible conduit used in hazardous locations. So when the foreman told this apprentice he needed 4-14” long horse cocks. I had a very confused look at why he would say he needed such a thing and he noticed my confusion and told me what they are. Now this was back when phones didn’t fold and when cell phones was made by Nokia, so there was not a way to “google” it and see what he was talking about. I don’t know why, but it came to mind and figured I would share.

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  • This reminded me of the first gas station I was a part of wiring. A term used in the electrical field is “horse ***”. It is an explosion proof flexible conduit used in hazardous locations. So when the foreman told this apprentice he needed 4-14” long horse cocks. I had a very confused look at why he would say he needed such a thing and he noticed my confusion and told me what they are. Now this was back when phones didn’t fold and when cell phones was made by Nokia, so there was not a way to “google” it and see what he was talking about. I don’t know why, but it came to mind and figured I would share.

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