What is a Fire Alarm System?
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- Опубликовано: 21 июл 2019
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Fire Alarm Systems are designed to alert us to an emergency so that we can take action to protect ourselves, staff and the general public.
Whatever the method of detection is, if the alarm is triggered, sounders will operate to warn people in the building that there may be a fire and to evacuate.
In this video, we will have a look at the structure and types of the “Fire Alarm Systems”.
The “Brain” of the system is the Fire Alarm Control Panel. It is the central hub for all of the detector signals to be wired to and provides a status indication to the users.
The unit can also be set up to simulate an alarm for use in routine Fire and evacuation drills, so all staff knows what action to take in the event of a real fire.
There are a wide array of different types, but we can divide them into groups including Heat detectors, Smoke detectors, Carbon Monoxide detectors, Multi-sensor detectors, and Manual Call Points.
A Heat detector can either work on a fixed temperature basis, where it will trigger an alarm if the temperature exceeds a pre-set value or they can work on the rate of change in temperature.
There are three basic types of smoke detectors including Ionization, Light Obscuring, and Light Scattering.
In the Light obscuring smoke detector, smoke interferes with a light beam between a light source and photocell. The photocell measures the amount of light it receives.
The variation in photocell output is being used to initiate an alarm. This type of detection can be used to protect large areas with the light source and photocell positioned some distance apart.
The light scattering smoke detector operates on the Tyndall effect; a photocell and light source are separated from each other by a darkened chamber such that the light source does not fall on the photocell.
The photocell output is being used to initiate an alarm.
Carbon monoxide detectors are known also as CO fire detectors and are electronic detectors used to indicate the outbreak of fire by sensing the level of carbon monoxide in the air.
Carbon Monoxide fire detectors use the same type of sensor as those in the home but are more sensitive and respond more quickly.
Carbon monoxide detectors have an electrochemical cell, which senses carbon monoxide, but not smoke or any other combustion products.
The Multi-sensor detectors combine inputs from both optical and heat sensors and process them using a sophisticated algorithm built into the detector circuitry.
When polled by the control panel the detector returns a value based on the combined responses from both the optical and heat sensors. They are designed to be sensitive to a wide range of fires.
A Manual Call Point or Break Glass Call Point is a device which enables personnel to raise the alarm by breaking the frangible element on the fascia; this then triggers the alarm.
Fire Alarm Systems can be broken down into four main types; “Conventional”, “Addressable”, “Intelligent Fire Systems” and “Wireless Systems”.
In a Conventional Fire Alarm System, physical cabling is used to interconnect several call points and detectors, the signals from which are wired back to the main control unit.
The detection principle of an Addressable System is the same as a Conventional System except that each detector is given a set Address (usually by means of a dip-switch) and the Control Panel can then determine exactly which detector or call point has initiated the alarm.
In our next type of System, which is an Intelligent Fire Alarm system, each detector effectively incorporates its own computer which evaluates the environment around it and communicates to the Control Panel whether there is a fire, fault or the detector head needs cleaning.
The final type of system we will consider is the Wireless Fire Alarm System. These are an effective alternative to traditional wired fire alarm systems for all applications.
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I have been a fire engineer for 9 years now so I can say yes this video is good I loved how you guys broke down how detectors work and call points too if most of my clients would see this too might stop some call outs too.
Thanks a million, Tony! We appreciate such comments.
Hey Tony, have you ever had to simulate a loss of power to the fire alarm panel via programming. I had an inspector ask for this to be simulated but FA technician did not have any idea how to. Thanks for any info
What certs are required for fire engineers?
This ain't a just a RUclips video. Its a lecture. Soo informative. The winding up was superb.
Great job. This is my favorite channel ever.
That's a great compliment, Dastan! Thanks a lot for your support!
In that case, I am sure you will enjoy our free course on PLC Hardware bit.ly/2XnnUrF
Happy learning!
Thanks a lot realpars team for your efforts , I'm working in the control room of a compression unit since two years , and this is the first time when I highly understand our fire alarm system thanks to your video
Thats an amazing compliment, Khalid! Great to hear that our video courses have been so helpful to you.
Keep up the learning curve!
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Sir eny job wanted fire alarm 7 years experience...
Showed this to my family to explain to them what I actually do for a living! Very informative and useful for those who are new to the fire protection industry.
Hi Grace,
Thanks a lot for your comment!
What a great way to paint a clearer picture for your family to see what your job entails! Great to hear that we were a part of that.
Happy learning!
Hi, Grace.
My Fire alarm system is giving false alarm so we installed 1/2 watt resistor on the end of the loop. DO you have an idea, what my the cause of the alarm?
Lol
@@daledankenethdongallo1396 am new in the system but try this ,go to the system an check your connection properly if everything goes fine the connection then check your dead end en put resistor at the output with red an neutral to the same port an see what will happen next if trigger 😊
But what about people who never
Gonna give you up never gonna let you down never gonna run around and desert you
Its nice to see that you included the xtralis osid detectors. With intelligent systems multiple panels can also be "networked" together
If I go to the store and I got
cool
i like it
bestproproduct.com/2022/09/7-best-smoke-detectors-for-a-kitchen/
Great job, thank you all realpars team
Thanks, Sameer! Happy learning!
@@realpars How do you isolate one level on a fire panel?
This video is brilliant. I am studying for the FDNY exam and this is very helpful. Thank you
Amazing! Best of luck with your exam
I just became a fire alarm project manager. This is great for a newbie like myself. Thank you!
Amazing! Happy learning, Nana!
Munjhe fire alaram job chahiye contact hoga mera no h 7970396651
Thanks for the great effort, please make a video on Toxic and Flammable detectors, as well as Calibration of detector types
Very interesting! Im an apprentice electrician who hasn't got to wire much fire alarm systems yet. But this information definietly helps in showing the different methods of wiring! Thanks!
Glad you enjoyed it, Karl! Always feel free to leave us any questions you might have along the way.
Happy learning!
Really explained the basics very well. Well understood. Grateful if a complex fire alarm system with all types of components (repeater panels etc.) is explained.
Glad it helped! I will happily pass your suggestion on to our course developers!
Happy learning
Short and simple but beautifully explained video. One of the best video found on the subject. Good work.
Thank you very much, Afzal!
I was understand after watch this video. Thanks for your video
I am the industry staff, the course explains how is the system constructed, what is the main function for each item, and how these devices realize the function. It helps the residents to understand why it is important to install fire alarm system, and why we need to maintain the devices regularly. And as the wireless technology upgrading, which can help us to upgrade the existing building fire alarm system, no more cable work, and complex commissioning, and realize the IoT Function to monitor the system anytime.
Thanks a lot for sharing, Jason!
i m proud to live in a world where RealPars exists..Thank you a lot
Great! Thanks for your support.
0:17
Very informative, thank you
Your videos Are awesome and understandable. Could you do video on Intruder Alarm?
Thanks for the topic suggestion, Aareef! I will definitely go ahead and forward this to our creator team. Happy learning!
Good one, knowledgable keep doing the best things
Thank you, Manoj! Happy to hear that.
i love how you explain, it very easy to understand, compact with knowledge. thanks a lot
Glad to hear that, thanks for your support!
How do you isolate one level on a fire panel?
As a Norwegian Telecommunications Technician, I work alot with fire systems. Autronica's autroprime and autrosafe accounts for about 80% of the systems, Schneider 15% and the last 5% is different kinds of random systems which are 20 years or older. Autronica systems is by far my favorite kind of fire system, with autroprime being my speciality
I'm an electrician from nigeria I want to know more of alarm system
Very informative and easy to follow - Do some IT security for PLC and Scada videos
Thanks a lot!
waiting for more
thank you
Thanking you so much. I have no need of googling everything anymore... I have just subscribed to your channel
That is an amazing compliment, Humphrey! Thanks for sharing.
Feel free to reach out if you have any questions, we are more than happy to help!
@@realpars sir what type of detector
So understandable ❤ and thankyou for the great video lecturing🖤
Happy learning!
It is very clear to me to understand Fire Alarm System because I am really doubt long time ago
Amazing explanation.. Thanks you RealPars !
Great to hear that! Thanks a lot!
Well good and well explained--- thank you team realpars
Happy to hear that, Melchor. Thanks for your support!
Simply Awesome dude, I love the explanation that really help us in real life
Glad you liked it!
I am an Instrumentation Engineer for oil and gas platform.. a lot of the instrumentation knowledge i learned from you Realpars.. Tq for your info
Great to hear! You're very welcome, and happy learning!
Very easy explanation.....
Thank you
Great to hear that, Radhakrishnan! Happy learning!
thank u Realpars for explaining.
Our pleasure!
Wonderful, very coherent, it's clear that you spent a lot of time on this!!!
Glad it was helpful! Thanks for your support, Sophia!
Amazing explanation! Thx realpars!!!
You're very welcome!
2:50 light scattering is also known as photoelectric or optical, and light obscuring is also known as a beam detector
Oopds a zw
I m proud to live in a world where RealPars exists. Thank you a lot
pleas make us public address system
Thanks for your kind comment!
Thank you so much. !
You are very welcome, Eric! Happy learning!
Thank you for this wonderful channel
You are very welcome, Ahmed!
Waiting for your VFD part 3 video with VFD parameter settings
ruclips.net/video/zKdFlp2JTKc/видео.html
Great Video explaining the basics of FA system
Thank you!
Thanks realpars team
You are very welcome, Derin!
Very helpful. Thanks a lot -team Realpars
Great to hear that, Imran! Happy learning!
Nice video,
I learned a lot of knowledge from this video. Really it's very helpful for the Lerner like me. Your sentence & voice quality is very decent.
Happy to hear that - thanks for sharing!
It was concise and right to the point. I enjoyed it. Thanks you all!
Great! Thanks for sharing.
really appreciate the breakdown of this analysis in fire alarm
Thank you! Glad to hear that.
Very good video about FAS
Thanks for described
Hey, it's a great introduction video. Simple words and representative images makes easy to understand. Thanks.
Hi Leonel,
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback!
If you ever have any questions, feel free to reach out to us.
Happy learning!
Grt
Its excellent one video based on Fire Alarm protection system.
Thanks
Thanks for your support, Akram! Happy to hear that you enjoyed this video course.
This is really amazing to learn..thank you for teaching
Glad you enjoyed it!
thanks Realpars team
You are very welcome, Salman!
Thanks Realpars
You are very welcome!
Very nicely explained. Thank you!
Glad you liked it! Thank you for sharing
Very informative video. Want more like this. Thanks!
Great to hear that, Durga! Thanks for sharing.
Great explanation.
Easy to understand.
Glad it was helpful!
I love your videos, been watching it since long time. Awesome work!!
My suggestions for topics is about computer vision, machine learning and/or deep learning. Greetings from Portugal
Thanks a million, Jorge! Great suggestions, I will happily pass this on to our course developers.
Happy learning!
Thankyu dear team... Thoroughly simple yet very tuting.. 🙏🙏👍👍
Great to hear that, Naveen! Thanks a lot.
really great for an just introduction
Thanks a lot, Logesh!
Shukran for the additional knowledge
You're very welcome!
Thanks a lot
You are very welcome, Mostafa!
THANK YOU FOR EXCELLENT PRESENTATION
Glad it was helpful!
I thank you for this explanation. It is the basic for biginers.
You're very welcome!
1 ) Notifier -NFS 3030 ( by Honeywell) can accommodate up to 10 loops in a single panel.
2 ) Autronica( BS 420) & Notifier Series good fire panels .
In the UK we have a notifier pearl panel, off the shelf pearl panels can go up to 8 loops but engineers with special access to products that aren't off the shelf can probably get 10 loop panels
Hii
Thank you so much. Very helpful 👍 appreciated
Glad it was helpful!
Pretty good explanation, though in the UK, when using an addressable system with dip switch addressing, the majority of systems have up to 127 addresses per loop
Good presentation, but a little dumbed-down, maybe. I don't know where RealPars got a limit of 99 devices on addressable loop. He might have been talking about a specific brand control panel. I'm most familiar with Honeywell (formerly Ademco) Panels. The Honeywell Vista-128FBP Panel (FBP=Fire Burglary Panel) supports up to 120 addressable devices on its multiplex loop, in addition to 8 on-board hardwired loops that don't use addressable devices.
The Honeywell/Ademco Vista-250FBP Panel supports up to 242 addresses on its multiplex loop, in addition to its 8 on-board supervised zones that support non-addressable fire/smoke detection devices.
Also, OP made it sound like his four kinds of systems were separate and exclusive of each other. All the major Fire Alarm Panel brands in North America are "hybrid" systems and support conventional on-board (wired at control panel) supervised loops + multiplex loops with addressable sensors + "intelligent sensors" + wireless sensors; all in the same system; if Fire Code permits. In the USA, Fire Code requirements for system equipment varies in different locations, though some basic requirements are universal.
Another minor fact not mentioned is that the Control Panel and Keypad(s) are separate devices. When we in the industry refer to a "Control Panel", we are talking about the "brains" of the system, the PCB (Printed Circuit Board) that receives and processes the sensor signals, determines what action to initiate, and informs the User of status, via the Keypad display. The KEYPAD is often conflated/confused with the Control Panel, Possibly because it's often mounted on the front of the Panel cabinet, but the Keypad(s) is/are simply the interface between the Control Panel and the User. a User may have several Keypads, but there is only one Control Panel.
usually every line in fire alarm system can get more elements for example 256, in my country, in Poland, it is law obligation that max element number in one line is 127 as you said
Very interesting to hear what the standards are in other countries. Here in New Zealand our national fire protection standards book states no more that 99 devices per loop on an analogue addressable system
Been working on Fire alarms since 1998, straight out of the Submarine service. They're super boring to me now. I got a job with the school district so I could fix more than life safety systems. Intercoms, Auditium lighting, sound, PA, scoreboards etc. Fire alarm service/Programming is what landed me the job though. Good techs are hard to find.
In terms of accuracy, This is fairly accurate, except those initiating devices are European call points. The USA & Canada use Pull Stations. Same with those Notification Appliances, Those look like European Sounder-Strobes, While the USA & Canada use Horn-Strobes, Chime-Strobe’s, Or Speaker-Strobes, or the remote variants of strobes, speakers, horns, or chimes.
thank you for the review. Hopefully this is useful
Hi Arjun,
Thanks a lot for your kind comment!
Nice video! keep up the great work!
Very nice. Thank you for this.
Great to hear that! Thanks for sharing.
Very informative. Thanks a lot👍
You're more than welcome!
Excellent. Thank you for your teaching. God bless you
You are very welcome, Alberto!
Thanks for video Al intelligent questions rise my mind
Useful information
Thanks
Thanks, Ala! Happy learning!
Good video and gives good knowledge on fire alarm system
Hey Vidya!
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback! If you ever have any questions, feel free to reach out to us.
Happy learning!
Thanks for the simple explained videos on this topic,Can you kindly do for Access control system?
Thanks for the topic suggestion, I will definitely go ahead and forward this to our creator team. Happy learning!
Your videos are so helpful, can you please do a video on BMS, and one on solar energy storage and amplify current
Hey!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
thank you for your time and dedication, the video itself is self explanatory.
You are very welcome!
Thanks so much for the education
Our pleasure!
Good explanation! We want notes to learn!
Thank you, Zaka! Happy learning!
Very simple and clear information
Great to hear that! Let us know if you have any questions along the way. Happy learning!
@@realpars is difficult to have questions after u guys present stuff. I will love for you to do a video on Human Machine Interfaces (HMI)
Thanks for the compliment! We have two RUclips videos on HMI. Have you watched this? ruclips.net/video/kujHQgK352o/видео.html and this one ruclips.net/video/xvVCSYt_YsQ/видео.html
Your video was very usefull, thank you
Great compliment, Noa! Thanks for sharing.
Thank you for this video.
Glad it was helpful! You're very welcome
Tank you so much for great help it’s most valuable information for all of us
You're very welcome! Happy learning
That's Great !
Thank you so much
good
waiting next video about this topic
Thank you!
Great work, keep updating new videos
Thanks a lot, Taira!
Excellent video...explains it all very well.
Glad to hear that! Happy learning
Great video, simplified explanation
Glad it was helpful!
Thanks for introduction fire alarm system
You are very welcome!
This is very educating. Thank you so much sir
Glad it was helpful! You're very welcome.
This is very good video, thank you for the effort and information
You're very welcome!
Thank u sir giving good knowledge.
Happy learning!
I love realpars
Very well explained, thank you one more time :)
You're very welcome! Happy learning
very good introduction. Thanks
You are very welcome, Adrian.
Its really helpful tnank you..
Glad to hear that!
Good information for technicians
Happy to hear that, Sivakumar!
wow nice sir knowledgable
I just graduates from colleges as Safety person and that's was so important to improve my skills , thx ❤️
You're so welcome!