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Most smoke detectors utilize a photo eye to receive the transmission of an infrared laser a short distance away. If the light being transmitted is not being received, or is only being partially received, the detector goes into alarm. As water is known to refract and distort light, this is likely why a wet detector is going into alarm.
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∙ 10y ago
Wiki User
∙ 11y agoNo
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Why do fire alarms go off during construction?
dust particles can trick the detector just like steam from a shower.
Why does the smoke alarm go off when someone burns toast?
Smoke alarms are hung so that if there is a fire you will know it. If toast is smoking then the alarm will detect it.
Do cellphone cause alarms to go off?
Generally, no.
What is the difference between regular smoke alarms and photoelectric smoke alarms?
Photoelectric smoke alarms are also called optical alarms. They are more expensive than regular alarms. They are also more accurate and less likely to go off unnecessarily.
What is the difference between manual and automatic fire alarms systems?
An automatic alarm system detects fires and sets off the alarm even if there is nobody around to detect the fire. A manual system will only go off when someone pulls the alarm switch after smelling or seeing smoke or seeing or feeling heat of a fire.
Why does your dog always howl outside?
dogs howl outside because of alarms going off or cop alarms go off it hurts there ears so then they will start to howl or they will howl with nuther dogs
Are fire alarms dangerous to fetus?
I don't know who (or shall I say what) you did it with, but I'd go see a doctor sooner than later.
What can cause a car alarm on a 1997 Nissan altima go off for no reason. I bought this car used and do not know what kind of alarm it is though.?
Different alarms have different sensitivity levels. Some alarms are set to go off with the lightest of touch or even just a loud sound.
Illegal to steal from Trevi Fountain?
Yes it is illegal because then the alarms will go off if you try to steal a coin.
What are the most common causes of false alarms in fire alarm systems?
As an expert on fire safety, I have seen many times when fire alarm systems send out false alarms. False alarms can be very annoying and sometimes even lead to fines or penalties. Based on my own experience, this answer will mention the most common reasons why fire alarms go off when they shouldn't. Cooking is one of the most common things that set off false alarms. Smoke detectors can be set off by smoke and steam from cooking, which makes them sound an alarm. This can be a major issue in commercial kitchens, where cooking happens round-the-clock. To avoid false alarms, it's important to make sure that smoke detectors are kept in good shape and aren't too close to cooking appliances. Dust and dirt are also common causes of false alarms. Over time, dust and other particles can build up in smoke detectors and make them stop working. Dust and debris can cause false alarms, which can be prevented by cleaning and maintenance performed regularly. Environmental factors can also trigger false alarms. For example, smoke detectors can stop working if the temperature or humidity changes. It's important to make sure that smoke detectors are set up in places with stable temperatures and that they are calibrated correctly. Sometimes human error can result in false alarms. For instance, someone might turn on a pull station by accident or mess with a smoke detector. Ensure that all employees are trained in fire safety and know the consequences of a false alarm. Lastly, outdated or broken equipment can also cause false alarms. False alarms are more likely to happen with fire alarm systems that are too old or haven't been properly maintained. Routine inspections and maintenance can help keep equipment from breaking down and setting off false alarms. So, false alarms can be very annoying and even lead to fines or other penalties. To prevent false alarms and make sure people are safe, I suggest hiring a genuine fire alarm service in Glendora. Moreover, regular cleaning and maintenance, proper staff training, and upgrading modern, reliable equipment will also help.
What kind of smoke detector should I buy?
You should have a photo-electric smoke alarm in your house because they react more quickly to smoldering fire byproducts than most ionizing type smoke alarms. Having ANY type of smoke alarm is better than none, provided it has the necessary batteries and maintenance to actually work during a fire.
Who gets called when a fire alarm goes off?
There are many different kinds of fire alarms: some notifications are local, some remote.Local, self-contained alarms only notify those who are within earshot of the noise. Anyone hearing an alarm would need to take steps to notify the fire department.Other "local" alarms could include smoke detectors that are wired together so that when one goes off they all go off, thus signalling anyone within earshot of any of the other smoke detectors.More sophisticated systems have a local panel and local alarm signal systems that may include horns, strobes, and other signals within the structure.Finally, some fire alarm panels are required to be connected for "remote signalling" to a licensed monitoring center or dispatcher who can then relay the information to the fire department and others for response to the alarm.
