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2. VRLA battery - Wikipedia

   en.wikipedia.org/wiki/VRLA_battery

   A 12V VRLA battery, typically used in small uninterruptible power supplies and emergency lamps. A valve regulated lead-acid (VRLA) battery, commonly known as a sealed lead-acid (SLA) battery, [1] is a type of lead-acid battery characterized by a limited amount of electrolyte ("starved" electrolyte) absorbed in a plate separator or formed into a gel; proportioning of the negative and positive ...

3. Control and indicating equipment - Wikipedia

   en.wikipedia.org/wiki/Control_and_Indicating...

   The fire detection and fire alarm system subcommittee of ISO/TC 21, Equipment for Fire Protection and Fire Fighting, had oversight for development of five standards covering detectors, control and indicating equipment. ISO 7240-2:3003 specifies requirements, test methods and performance criteria for control and indicating equipment (c.i.e.) for ...

4. Fire alarm system - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_system

   A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices ...

5. Manual fire alarm activation - Wikipedia

   en.wikipedia.org/wiki/Manual_fire_alarm_activation

   Manual fire alarm activation. An activated manual call point in Japan. Telephone jacks are visible beneath the open cover. 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 evacuation signal for the relevant building or zone.

6. EN 54 - Wikipedia

   en.wikipedia.org/wiki/EN_54

   Look up en-54 or en54 in Wiktionary, the free dictionary. The EN 54 Fire detection and fire alarm systems is a series of European standards that includes product standards and application guidelines for fire detection and fire alarm systems as well as voice alarm systems. The product standards define product characteristics, test methods and ...

7. Fire alarm control panel - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_control_panel

   A fire alarm control panel (FACP), fire alarm control unit (FACU), fire indicator panel (FIP), or simply fire alarm panel is the controlling component of a fire alarm system. The panel receives information from devices designed to detect and report fires, monitors their operational integrity, and provides for automatic control of equipment, and ...

8. NFPA 72 - Wikipedia

   en.wikipedia.org/wiki/NFPA_72

   The NFPA 72 "covers the application, installation, location, performance, inspection, testing, and maintenance of fire alarm systems, supervising station alarm systems, public emergency alarm reporting systems, fire warning equipment and emergency communications systems (ECS), and their components." [1]

9. Electric battery - Wikipedia

   en.wikipedia.org/wiki/Electric_battery

   An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [ 1 ] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [ 2 ] The terminal marked negative is the source of electrons that will ...