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Manual Fire Alarm Activation
Manual fire alarm activation is the process of triggering a fire alarm through a call point, pull station, or other device. This usually causes the alarm to sound the Fire alarm notification appliance, evacuation signal for the relevant building or zone. Manual fire alarm activation requires human intervention, as distinct from automatic fire alarm activation such as that provided through the use of heat detectors and smoke detectors. It is, however, possible for call points/pull stations to be used in conjunction with automatic detection as part of the overall Fire alarm system, fire detection and alarm system. Systems in completed buildings tend to be wired in and include a control panel. Wireless activators are common during construction. When a fire pull station or call point is activated, codes usually require evacuation begin immediately. There are certain exemptions like system maintenance and security Lockdown, lockdowns, where manual activation outside the contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Simplex Pull Station
In geometry, a simplex (plural: simplexes or simplices) is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions. The simplex is so-named because it represents the simplest possible polytope in any given dimension. For example, * a 0-dimensional simplex is a point (mathematics), point, * a 1-dimensional simplex is a line segment, * a 2-dimensional simplex is a triangle, * a 3-dimensional simplex is a tetrahedron, and * a Four-dimensional space, 4-dimensional simplex is a 5-cell. Specifically, a -simplex is a -dimensional polytope that is the convex hull of its Vertex (geometry), vertices. More formally, suppose the points u_0, \dots, u_k are affinely independent, which means that the vectors u_1 - u_0,\dots, u_k-u_0 are linearly independent. Then, the simplex determined by them is the set of points C = \left\. A regular simplex is a simplex that is also a regular polytope. A regular -simplex may be constructed from a regular -simplex by connecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Fire Alarm Notification Appliance
A fire alarm notification appliance, often simply called a fire alarm, is an active fire protection component of a fire alarm system. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other emergency condition requiring action. Audible appliances have been in use longer than any other method of notification. Initially, all appliances were either electromechanical horns or electric bells, which would later be replaced by electronic sounders. Most of today's appliances produce sound levels between 70 and 100 decibels at 3 ft. Methods of notification The primary function of the notification appliance is to alert persons at risk. Several methods are used and documented in industry specifications published by UL. Alerting methods include: * Sound (audible signals) ** 95 dB @ 3,100 Hz tone are used in many current notification devices. ** 80 dB @ 520 Hz tone are used in newer notification devices. ** 70 dB to 100 dB weighted for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Dispatcher
A dispatcher is a Communication, communications worker who receives and transmits information to coordinate operations of other personnel and vehicles carrying out a service. Emergency organizations including police, police departments, fire department, fire departments, and emergency medical services, emergency medical services departments as well as civilian organizations such as motorcycle couriers, taxicab providers, Truck driver, trucking companies, railroads, bus systems, and public utility companies, use dispatchers to relay information, direct personnel, and coordinate their operations. Types of dispatchers Emergency dispatchers An emergency dispatcher, also known as public safety dispatcher, 9-1-1 dispatcher, or public safety telecommunicator www.bls.gov ''Occupational Employment and Wages May 2020''. URL accessed on August 19, 2021 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Alarm
ALARM (Air Launched Anti-Radiation Missile) is a British anti-radiation missile designed primarily to destroy enemy radars for the purpose of Suppression of Enemy Air Defenses (SEAD). It was used by the Royal Air Force, RAF and is still used by the Royal Saudi Air Force. The weapon was retired by the UK at the end of 2013. History The Ministry of Defence (United Kingdom), Ministry of Defence received offers for a new anti-radiation missile in late 1982; BAe Dynamics, British Aerospace Dynamics offered ALARM while Texas Instruments teamed with Lucas Aerospace offered its AGM-88 HARM, HARM missile. Defence Secretary Michael Heseltine announced the selection of ALARM on 29 July 1983. The initial order was 750 missiles for the RAF. The selection process was controversial; the battle between the contractors was bitter, the Ministry of Defence favoured ALARM to retain UK industrial capabilities while the Treasury favoured the cheaper and proven HARM. In early 1986, BAe recognised th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Flag
A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and flags have evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is challenging (such as the Maritime flag, maritime environment, where Flag semaphore, semaphore is used). Many flags fall into groups of similar designs called flag families. The study of flags is known as "vexillology" from the Latin , meaning "flag" or "banner". National flags are patriotic symbols with widely varied interpretations that often include strong military associations because of their original and ongoing use for that purpose. Flags are also used in messaging, advertising, or for decorative purposes. Some military units are called "flags" after their use of flags. A ''flag'' (Arabic: ) is equival ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Protection
Fire protection is the study and practice of mitigating the unwanted effects of potentially Conflagration, destructive fires. It involves the study of the behaviour, Compartmentalization (fire protection), compartmentalisation, suppression and investigation of fire and its related emergencies, as well as the research and development, production, testing and application of mitigating systems. In structures, be they land-based, offshore or even ships, owners and operators may be responsible for maintaining their facilities in accordance with a design-basis rooted in law, including local building code, building and fire code, fire codes. Buildings must be maintained in accordance with the current fire code, enforced by fire prevention officers of a local fire department. In the event of fire emergencies, Firefighters, fire investigators, and other fire prevention personnel are called to mitigate, investigate and learn from the Fire damage, damage of a fire. Classifying fires When dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Crime
In ordinary language, a crime is an unlawful act punishable by a State (polity), state or other authority. The term ''crime'' does not, in modern criminal law, have any simple and universally accepted definition,Farmer, Lindsay: "Crime, definitions of", in Cane and Conoghan (editors), ''The New Oxford Companion to Law'', Oxford University Press, 2008 (), p. 263Google Books). though statutory definitions have been provided for certain purposes. The most popular view is that crime is a Category of being, category created by law; in other words, something is a crime if declared as such by the relevant and applicable law. One proposed definition is that a crime or offence (or criminal offence) is an act harmful not only to some individual but also to a community, society, or the state ("a public wrong"). Such acts are forbidden and punishable by law. The notion that acts such as murder, rape, and theft are to be prohibited exists worldwide. What precisely is a criminal offence is def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Alarm Fatigue
Alarm fatigue or alert fatigue describes how busy workers (in the case of health care, clinicians) become desensitized to safety alerts, and as a result ignore or fail to respond appropriately to such warnings. Alarm fatigue occurs in many fields, including construction and mining (where vehicle back-up alarms sound so frequently that they often become senseless background noise), healthcare (where electronic monitors tracking clinical information such as vital signs and blood glucose sound alarms so frequently, and often for such minor reasons, that they lose the urgency and attention-grabbing power which they are intended to have), and the nuclear power field. Like crying wolf, such false alarms rob the critical alarms of the importance they deserve. Alarm management and policy are critical to prevent alarm fatigue. Healthcare The constant sounds of alarms and noises from blood pressure machines, ventilators and heart monitors causes a "tuning out" of the sounds due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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False Alarm
A false alarm, also called a nuisance alarm, is the deceptive or erroneous report of an emergency, causing unnecessary panic and/or bringing resources (such as emergency services) to a place where they are not needed. False alarms may occur with residential burglary alarms, smoke detectors, industrial alarms, fire alarms and in signal detection theory. False alarms have the potential to divert emergency responders away from legitimate emergencies, which could ultimately lead to loss of life. In some cases, repeated false alarms in a certain area may cause occupants to develop alarm fatigue and to start ignoring most alarms, knowing that each time it will probably be false. Intentionally falsely activating alarms in businesses and schools can lead to serious disciplinary actions, and criminal penalties such as fines and jail time. Overview The term "false alarm" refers to alarm systems in many different applications being triggered by something other than the expected trigger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Exam
An examination (exam or evaluation) or test is an educational assessment intended to measure a test-taker's knowledge, skill, aptitude, physical fitness, or classification in many other topics (e.g., beliefs). A test may be administered verbally, on paper, on a computer-adaptive testing, computer, or in a predetermined area that requires a test taker to demonstrate or perform a set of skills. Tests vary in style, rigor and requirements. There is no general consensus or invariable standard for test formats and difficulty. Often, the format and difficulty of the test is dependent upon the educational philosophy of the instructor, subject matter, class size, policy of the educational institution, and requirements of accreditation or governing bodies. A test may be administered formally or informally. An example of an informal test is a reading test administered by a parent to a child. A formal test might be a final examination administered by a teacher in a classroom or an IQ te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Revenge
Revenge is defined as committing a harmful action against a person or group in response to a grievance, be it real or perceived. Vengeful forms of justice, such as primitive justice or retributive justice, are often differentiated from more formal and refined forms of justice such as distributive justice or restorative justice. Function in society Social psychologist Ian Mckee states that the desire for the sustenance of power motivates vengeful behavior as a means of impression management: "People who are more vengeful tend to be those who are motivated by power, by authority and by the desire for status. They don't want to lose face". Vengeful behavior has been found across a majority of human societies throughout history. Some societies encourage vengeful behavior, which is then called a feud. These societies usually regard the honor of individuals and groups as of central importance. Thus, while protecting their reputation, an avenger feels as if they restore the pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Practical Joke
A practical joke or prank is a trick played on people, generally causing the victim to experience embarrassment, perplexity, confusion, or discomfort.Marsh, Moira. 2015. ''Practically Joking''. Logan: Utah State University Press. The perpetrator of a practical joke is called a "practical joker" or "prankster". Other terms for practical jokes include gag, rib, jape, or shenanigan. Some countries in Western culture, western nations make it tradition to carry out pranks on April Fools' Day and Mischief Night. Purpose Practical jokes differ from confidence tricks or hoaxes in that the victim finds out, or is let in on the joke, rather than being talked into handing over money or other valuables. Practical jokes are generally lighthearted and without lasting effect; they aim to make the victim feel humbled or foolish, but not victimized or humiliation, humiliated. Thus most practical jokes are affectionate gestures of humour and designed to encourage laughter. However, practical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |