Fire alarm systems, in Arlington, are automatically or manually actuated devices that detect the unwanted presence of fire by monitoring combustion-induced environmental changes. These systems consist of equipment for notifying the building occupants to vacate in case of an emergency as well as prevent spreading of fire & smoke. The fundamental configuration of such a fire alarm system is composed of a Fire alarm control panel, Primary Power supply, Secondary (backup) Power supplies, Initiating Devices, Notification appliances & Building Safety Interfaces. The fire alarm systems in Arlington are categorized as- L, P& M. L category systems aim at protecting life, P category systems are meant for protecting buildings, while manual systems are designated as M.
Each year as a tradition to myself and this green movement website, I write on the events of Earth Day (April 22nd) this year is no exception. I will focus more on some new ideas and representations of our planet Earth. The symbols of Earth Day have been similar throughout the years, including an image or drawing of the Earth..