Industrial LED Lamp in Hazardous Areas

Sure, as long as it has a certification for the subject hazardous area and the fixture in which it's mounted. Just because the LED has no filament and operates at low voltage doesn't make it intrinsically safe. LEDs draw significant current and the driver electronics may have surface temperatures above the auto-ignition temperature of the flammable material in the area, plus consider what happens if there's a fault and/or the pcb traces fuse or flash.

Here's one that's ATEX and IECEx compliant:

http://www.chalmit.com/pdfs/general/HazCat10thMay2012-lores.pdf

See page 86.

'...without any risk ??...'

.

no.

.

never.

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It isn't necessarily possible not to do something without risk.

Are there LED lamp assemblies that meet an explosive environment criteria? Yes there probably are ones that meet this. I imagine that it's easier since an LED does not have to get hot to produce light. Will every LED assembly meet this safety, I wouldn't count on it. Remember a LED itself does not work at any power distribution voltages. So all of the ancillary devices that reduce power line voltages residing inside that package exposed to a plausible explosive atmosphere must not be capable of igniting the explosive in all failure modes.

You must still do you due diligence work to prevent a disaster.

Are you planning to remove the HPS lamp and use the fixture to house the LED lights? If that is the case why are you planning to do that? If you want to use LED for flood lighting purpose in an industry like this , I suggest you stick with HPS. If for stair lighting, bay lighting, or general lighting inside the compressor house, you can use LED but the amount of lighting required will depend on the size of the area. LED Lights also come in enclosed cases for protection wise. Check up google to select the best application.

Hi Juan,

A company called Dialight advertises hazard rated led lights for all hazard classes.

Good Luck

ExPat07

Asking the question in itself indicates that the questioner is insufficiently trained to apply the answers to this thread, correct or otherwise.

So stop. Get training locally before proceeding any further. Do not select, install, repair, maintain, modify or test hazardous area electrical equipment without having completed suitable training.

I'm so sorry to see you come from England, you most know that I have been working together in my country with very skilled england engineers ( Simon Carves Co) building a 1800 MT/d fertilizer plant where were installed under my management more than 2000 explosion proof lighting fitting in very well classifieds zones, then should I be enough trained ??

Please don't missunderstand my question while other members understood and replied.

My question is referred to any knowledge by member of manufacturer with proper enclose fitting to be used in EX e II C T2 area becase the only I have seen in catalog are open type.

Classification Areas

EX: Explosion Proof

e: Enclosure

II: Group (acording to gas specification)

C: Hidrogen

T2: Temperature Class

Bye

What does the Potentially Explosive Atmosphere Zoning drawing say about the area classification at the place where the light fitting is to be installed? It's worth asking the question, because it cannot be read from here. Also, what is the nature of the potentially explosive materials present, what is the certification of the light fitting proposed, and why is there apparently no qualified Engineer present at the facility to advise the original poster without the business resorting to an anonymous international Engineering website to further its aims?

Hi PWSlack:

Could you please say to me the meaning or the phrase Don't worry. "Chiken curry"

Thanks

Bye

You might get a more prompt response if you promise to say;

'Winner, Winner, Chicken Dinner!'

immediately following PWSlack's disclosure of 'the meaning of the phrase "Don't Worry, Chicken Curry"'

First of all you need to verify the electrical area classification.

Next if the area, which I suppose is classified you need to select the enclosure of the light for that area, most manufacturers will give you the info you need.

And Yes LED's can be used in any area as long as its enclosure is the proper one.

...although the explosion protection techniques will differ depending on how many LEDs there are, the circuit characteristics, and the zone of installation. This is why the original poster needs training.

No.

The simple reasons are

1) Industrial LED lights produce a lot of heat (have an uncertified T rating meaning they cannot be used in a hazardous environment)

2) Have a high operating current (meaning they cannot be protected by intrinsically safe barriers, etc)

3) Are not hazardous area classified or classified as industrial simple apparatus (with the possibility of being protected by intrinsically safe means - see 2 above).

Any one of these three reasons is enough to say no, almost all industrial LED lighting fails all three.

There is a great deal of lack of understanding in the market regarding hazardous area installation so I am not surprised you have asked the question.

On a side note I have just done a redesign of a coal dust store where the client used standard industrial LED lights that do NOT comply and hence have to be replaced.

The inspector picked up the illegal installation and so will yours.

Further to this discussion if you wish to use LED lamps in a HPS fitting (which I don't think is possible but will cover anyway just in case) then the fitting certification would have to state that this is allowed, which it almost certainly wouldn't (for a number of reasons).

Hi Jack

Thank a lot, your answer is that I was expecting for, your three technical reasons mentioned and the argument are convincing so I reiterate my greatefull for that, with your explanation and the rest of member I will enphasize more carefull about this matter in the next forthcoming proposal project to analyze and find the proper led fitting manufacturer if it comply with the regulations or else I will continue with HPS lamp any way.

No, it is not my intention to change the existing HPS lamps by Led unit, the issue is for the extention of the existing process indurtry

Thank everyone

Bye

Jack, While I agree with you on the reasons why general purpose LED lamps can't be used in classified locations, your statement "...3) Are not hazardous area classified or classified as industrial simple apparatus..." is questionable since there are a number of vendors that do provide classified LED lamps as complete assemblies, see post #1 in this thread for an example. Whether they're suitable for Juan's particular situation is up to him and his AHJ to decide.

Hi all

To all member involved in this topic, please visit website www.crouse-hinds.com and www.dialightils.com, those supplier ensure that their LED lighting fitting are cetified and comply with the standards to operate in hazardous envinment, I think both are recognized manufacturers.

Bye

Also try Stahl.

My bold statement 3) was specifically related to the original question posed where "LED industrial lamp" was mentioned, where that is just some uncertified industrial LED lamp.

I made no mention of suitable alternative hazardous area certified LED lights or fittings when answering the original question, I just explained why the answer in my opinion is no to the question "May I use the new LED industrial lamp in hazardous area".

I probably should have mentioned alternatives since we sell hazard area lighting and I service hazardous area LED inspection lights for the aircraft industry.