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Smoke detectors are commonly used and very useful device. This device detects the smoke and alarm people about the fire to save their lives. Thus we can say, it is a life saver. These are the most amazing invention because practically they cost nothing compared to its advantages .And while they cost very little, they saves thousands of lives. Therefore, it is recommended that every house must have smoke detectors on each floor. Most of the people have false sense of security thinking that they have smoke detectors but it is necessary to check that they are installed properly and are in working conditions by the installers like Mactec electrical- experienced commercial electricians . Ironically, the smoke detectors were invented by a smoker. In the late 1930’s, a swish physicist Walter Jaeger was experimenting to invent the sensors for the poison gas but the small amount of gas has no effect on the conductivity of the sensors. Frustrated, Jaeger lit the cigarette then he noticed that the instrument meter has drop in the current. Thus a smoke particle has done what poison gas could not. This was the first step toward the advance paved way for the modern smoke detectors. It is also surprising that smoke detectors works because of the radiation. Therefore, these are the beneficial example of the radiation and radioactive materials. The smoke detectors consist of mainly two parts, sensors to sense the presence of smoke and alarm or buzzer to alarm the people about the fire or smoke. These alarms are very loud electric horns. Smoke detectors work on the 9-volts of battery or 120 volts of house current. There are roughly two third of the house fire deaths in the houses with no smoke detectors or because of the reason they were not in working condition. Few different types of the smoke detectors, ask to the area fire station before installation of these that which kind of detector is suitable for your house. 1.Ionization smoke detectors: The ionization detectors are more responsive to the flaming fire. These uses radioisotope such as americium-241 which ionizes air. The difference due to the fire is detected by these types of detectors and finally alarm is generated. They contain a chamber with two plates which generates a small and continuous electric current. The smoke enters the detectors and disrupts the flow of the current. This triggers the alarm. 2.Optical smoke detectors: these smoke detectors are also known as the photoelectric smoke detectors. These types of detectors are more responsive to the smoldering fire. These contain the light beam and light receptor, when a smoke particle comes in between the bean and receptor, the photocell generates the trigger. 3.Combine smoke detectors: It is the combination of the photoelectric and ionization smoke detectors therefore are usually recommended. These detect the smoldering as well as flaming fire and this makes it the best smoke detector. These detectors may include the carbon monoxide detection capability. They provide highest degree of safety and preparedness and are also known as the dual sensor smoke detectors. Installation and maintenance of the smoke detectors is very important. The smoke detectors should be installed outside every bedroom and on the every level of the house even in the basements. The detectors should installed high on the walls because smoke rises and avoid installing detectors near windows and doors where smoke can escape. The larger home needs additional amounts of the smoke detectors to provide enough protection. The best way for safety using smoke detectors is to interconnect them so that if one detectors sounds than all sounds. The smoke detectors should be tested every month by pressing the test button to check whether the detector is working properly or not. The lifetime of the smoke detectors is of approximately 7 to 10 years; therefore it is necessary to replace them. The batteries are also needed to be checked once in a while and replace the batteries at least once a year. It is better to maintain the detectors by cleaning the grills to avoid accumulation of dust and debris. The smoke detectors should not be in the kitchen area, they should be at least 3 meter away to prevent the false alarm. For the better usage get your smoke detectors installed from the best electrical contractors.
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