It was about this time that, as I was paging through the hard copy documents, I noticed a small little box with some notes in it. You get your roof framing plan or reflected ceiling plan up, whatever the case may be, and you start laying out sprinklers. You quickly remind yourself of the rules for spacing: 130ft 2/sprinkler, density of 0.20gpm/ft 2, etc. Right? You hear that word, and you immediately think ordinary hazard Group 2. It read “ABC Retail.” Now, any sprinkler designer or estimator with a few years behind them knows that the word “retail” is a trigger word. It was only after I had built my backgrounds and was ready to begin laying out sprinklers when I stopped to look at the title block again. I glanced at the name of the project on the title sheet but moved quickly into the guts of the drawings in order to get the design started. The design criteria for the fire sprinkler system was wrong. Sounds simple enough and, for the most part, it would have been except for one thing. Design and install was in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems. Other than that, it was business as usual. Nothing too dramatic, just a few items regarding fire department connection (FDC) locations and how their permit fees were determined. Having a long-standing relationship with this Authority Having Jurisdiction (AHJ), I was familiar with their currently adopted codes and standards as well as their amendments that were specific to their area. Knowing the area, I quickly identified the location and the associated jurisdiction I would be dealing with. So, there I was opening up a set of construction documents to begin a new fire sprinkler design for a new building being built. Start testing your fire alarm system and check its functionality using the suitable testing tools and the predefined testing procedure.įire alarm test is done using special tools that are able to simulate the case of fire that is presented around the fire detectors in your system.Ĭheck that your design passed the common design errors and mistakes (You can learn more of those design mistakes in our eBook)Ĭheck for false alarms and edit your design to avoid any unwanted false alarms.What’s the Building Owner Got to Do with It? Ordinary copper cables fire alarm system.There are four types of fire alarm installation infrastructures: Fire alarm system design should follow the national fire alarm code and the (AHJ) that determines the recommended smoke detector spacing and all the corresponding detectors’ installation recommendation in the country.Īfter applying the AHJ to your design, start your fire alarm installation and choose which installation methodology you will implement. The next step after you had determined the suitable fire alarm detection type for your application is to follow the Authority Having Jurisdiction (AHJ) in your country. So the fire alarm system design depends on the application and your knowledge with fire alarm system components function. In the mean while, in the oil storage warehouse application, you may use flame detectors which will detect any flames that will be generated from burning oil (because while oil is in fire, it produces flames immediately rather than smoke). In the small house you may use conventional fire alarm system which contains (not limited to) smoke detectors and CO (carbon monoxide) detectors and the budget will be affordable. Using the previous comparison, imagine you are installing a fire alarm system in the next two cases: The design of a fire alarm system for a small house will be different than the design of an oil storage warehouse.Īfter you determined your application, you will determine the suitable fire alarm system detection type for this application based on your knowledge about the fire alarm system components and their method of fire detection. The second step in fire alarm design is to know your application. By acquiring this information you should have a solid background about all the fire alarm system components and you will be ready for the second step of fire alarm system design.Ģ- Determine the needs of your application: The first step of fire alarm system design is that you should learn and understand the main function of each fire alarm system components and how it works (Theory of operation).
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