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An external water spray system (EWSS) is a domestic external fire sprinkler system designed to protect homes from bushfires and wildfires. While external spray systems have long been used in fire protection for buildings and facilities [ citation needed ] , EWSS refers to domestic bushfire/wildfire systems.
A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system, to which fire sprinklers are connected. Although initially used only in factories and large commercial buildings, systems for homes and small buildings are now available ...
The committee worked with the National Bureau of Standards until 1933, when funding was curtailed. In 1921 the Building Code Committee and in 1925 a report was issued titled "Recommended Practice for Arrangement of Building Codes" which consisted of 19 chapters, including Chapter 15 on plumbing. This report was known informally as the "Hoover ...
External access point for fire sprinkler and dry standpipe at a building in San Francisco, US Antique wet standpipe preserved at Edison and Ford Winter Estates. A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water ...
A fire sprinkler mounted on a ceiling. A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitted each year.
Another common location for a backflow preventer is the connection of a fire sprinkler system to a water main, to prevent pressurized water from flowing from the fire suppression system into the public water supply. Back-siphonage occurs when higher pressure fluids, gases, or suspended solids move to an area of lower pressure fluids.
Residents are asked to water no more than three days per week and to water between the hours of 7 p.m. and 4 a.m. because the system has experienced overwhelming demand during early morning hours.
A process to perform a water flow test is explained in the model fire codes as published by NFPA (National Fire Protection Association). If a water supply source is considered weak compared to what is required by the sprinkler system design hydraulic calculation, the water pressure can be boosted by means of a fire pump.