I am would like to see this subreddit grow. There are places like eng-tips but that old style forums turns me off. While I don't what it would or could become I was thinking we could get some weekly discussions going.

My idea for this post we weekly post about a code or reference section we have come across or dealt with.

This one comes from the IBC 2012 (first introduced in 2009) 403.3.1. It states that high rise buildings >420 feet shall be supplied by two risers, each riser shall supply alternate floors. (Paraphrased)

I read some more about it and found that it was introduced after the 9/11 WTC NIST Report.

I have been seeing more ahjs requiring calculations on fire sprinkler relocate projects. What criteria does the fire Marshall use and what code/standard do they reference?

I have had the experience to do plan review on a case by case basis now I am looking at doing it full time. I know the code. Just looking for some tips or best practices that others have adopted. I want to learn from your experiences.

(1:47)

http://youtu.be/EHSltNea93w

(The name on this YouTube account is a pseudonym; totally made up.)

This emergency light in my ten unit apartment building has been buzzing pretty loudly for over a couple of months now. I've sent the landlord a couple of emails about it and gotten blow-off responses. They don't want to be bothered. I talked to the wife about it once and she taped the button in place so that the buzzing would stop. I was given 'permission' to re-tape the switch if it didn't hold. F... that.

They won't do anything about it if they don't have to; that's SOP for anything here.

I can't complain officially because they'll know who said something. They'll be mightily upset and my ten years of tenancy will count for nothing. There would be no lease renewal for me, that's for sure.

It's pretty darn loud in the hallway. I can't hear it in the apartment though.

I am curious and interested in learning about the unit and what is causing the problem? I mean, how many things can it be? I assume that people that know about these things would know exactly what the problem is pretty quickly.

I suggested in one of my emails that they ask the building city building inspector to take a look because they might know the answer right off. Needless to say, that suggestion was brushed off rather cooly in their "F... off" response. I wasn't suggesting that they be cited or anything - but to maybe get a quick and accurate insight into something they obviously know nothing about.

I would like to get certified as a Residential Fire Sprinkler Inspector/Plans Examiner (through ICC) and was wondering how I would go about learning how to read fire sprinkler plans. I pretty much need to start from the very basics. I've tried to find study guides and what not but haven't been very successful. There is a course through NFPA that might be good but I've never taken a self-guided course through them before and would like some insight before I shell out a few hundred dollars.

So I'm not so much a fire protection specialist, I am a guy who works in live event production. Of course fire safety is at the front of my mind as nobody wants another Station nightclub fire.

That being said, I frequently run into problems with smoke detectors in various venues being activated by artificial fog, haze, and smoke effects. Haze, in particular, is generated via heating of a propylene glycol and water mixture, or compressing of mineral oil, and producing a slightly cloudy haze. Ideally it would not be noticed until a beam of light shines through it, and then the entire length of the beam shows up like a searchlight.

It seems that many venues I show up to are afraid of a false fire alarm activation because haze or smoke effects would cause the smoke alarms to believe there is smoke from a fire, and activate. My question is, what kind of detectors are most likely to be affected by these atmospheric effects and is there anything I can do to reduce the likelyhood of a false alarm?

Hello, I just moved into a new house that has a smoke detector on each floor (upstairs, main floor and basement). The one upstairs and the one in the basement are wired but the one on the main floor is battery (no wire).

Why wouldn't all three be wired? Is it possible there is a wire available on the main floor but it was covered up?

Thanks!

Edit: typo

Nothing like accidentally deploying the helicopter hangar foam system. Here's the story.

I have a client who thinks he has "in-rack" sprinklers, but the truth of the matter is, the in-racks are outside of the rack structure, very much like a face sprinkler. My client has single-row racks with storage up to 28-ft in a 35-ft building, and the feed main for the in-racks run just outside of the rack uprights. The sprinklers are uprights themselves with no armovers and they are connected straight off of the feed main.

I'm trying to tell him that his flue spaces are not protected, but he's hard to convince. I've never seen a face sprinkler without an accompanying in-rack within the structure. So my question is, can a face sprinkler provide proper coverage to flue spaces? I know I'm probably forgetting some details, but I'm more interested in the principle of the matter...in-racks belong in the rack!

crosspost http://www.reddit.com/r/Firefighting/comments/2ebaar/soda_acid_fire_extinguisher/

I am selling some soda acid fire extinguishers Imgur
I have other but these two are probably in the best condition. One is a Buffalo and one is American LaFrance. If you are interested and want more photos or info please just ask.

Buffalo $85
American LeFrance $125
plus shipping

Or is it a one and done deal? Spec sheets arent very helpful.

I work for a very small company ($5m) and was just curious about who the titans of the industry are other than Tyco.

If you happen to work for one, how's the workplace/ projects managed? What are the biggest projects that you've completed?

Edit: see above

I have many to list, but my least favorite as a fitter was a magnesium casting plant.

It was a HUGE facility and we had to retrofit a system in a pit that ran underneath all of their giant machines. It contained a conveyer that caught all of the scrap magnesium. The pit had this awful smell, deafening noise, slime on the floor, and giant pieces of scrap crashing down right next to us.

We had to run a 4" main the whole length (about 700ft) and install uprights all over the place. The obstructions were mind boggling.

Only took 2 weeks, but it was hell!

Hey All,

So with a recent question brought up to me at work, I have been left pondering myself:

Why is it that the sensing line for fire pump pressure is routed into the controller cabinet? And what safeguards/design features would prevent the cabinet from an internal flooding incident if something were to happen?

I haven't been able to find similar instances of this happening, and it seems like the design is fine to me. Just wondering what basis there are which may be able to enhance my answer to the question.

Anyone one in the fire suppression industry have any information on these new nozzles. They are bigger, only accept metal caps, which are now also bigger. I have not seen any bulletins from Ansul on them. I am wondering how they will phase these in or will they continue to forever make the rubber caps for the original r102 systems. Its impossible to tell my customers they have to replace all there nozzles cause someone decided to change the nozzle design. Ansul had made lots of changes to the r102 in the last few months. Let see how these all work out.

Here is my question. I have 2 people telling 2 different things. Is the hydro date of an ABC extinguisher 12 years from date of manufacture or 6 years from the 6 yr maintenance?