Can someone direct me to resources for anti-flammability

polyhedron

I'm new to the forums, HI.

I've googled, but I'm not sure the right terms.

I've searched here, but again maybe wrong terms

I'm looking to protect my stamp creation, from causing a fire while in a flammable environment ... well not really flammable, just around lube oil, but still, i would like to prevent it from causing a fire in case of malfunction, or overload, etc.

Can someone point me to resources where I can read up on this.

Thanks,
Matt

bill190

The National Electrical Code calls this "Class I". It used to be and still is in some places called "Explosion Proof". Here is info on Class I...

http://www.ldpi-inc.com/main-site/technical/articles/class-I.htm

And the idea of this is that electrical gizmos are "sealed tight" so gases and flammable liquids can't get into them, and sparks can't get out. You see these types of enclosures around a gas station. They look quite heavy duty like this...

http://tecpro.com/store/explosion-proof-cameras/m12d-sec-ep?vmcchk=1

NEMA Enclosure types...

http://www.engineeringtoolbox.com/nema-enclosures-d_919.html

Explosion proof enclosures...

http://www.google.com/images?um=1&hl=en&tbs=isch%3A1&sa=3&q=%22explosion+proof%22+enclosures




Post Edited (bill190) : 6/1/2010 10:43:35 PM GMT

polyhedron

Awesome, thanks!

Exactly what I needed to get started.

IRobot2

Errr, that is 95% right. The idea for "explosion proof" is not to have it completely sealed tight, because then you would have quasi bomb. Rather, an enclosure that has to ability to shield as described above AND provide the channels to allow gases to cool before exiting the box. This way, if a leak is formed the explosion is contained within the box and would not ignite surrounding gases/materials around it. (and/or keeps the pressure from building within the enclosure and blasting into fragments)

Take a look at http://www.exforklifts.com/ex.htm

Look closely at the diagram and notice how the hot gases are dissipated. I just wanted to throw this out there so you don't go putting your device is some type of water tight enclosure thinking it will do the job. (BTW you will get sticker shock when you look at the price tag of these things).

Hope this helps.

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Alex Burke
"It is not how smart you are rather, it is how you are smart." -Jon Campbell