Definition & Operational Usage
A pressure surge or wave that occurs when a fluid in motion is abruptly halted or redirected, frequently observed in fire hoses or piping systems during rapid valve closures. This phenomenon can lead to significant damage to firefighting equipment and pose risks to personnel safety. Not to be confused with hydraulic shock, which refers to the broader effects of pressure changes in fluid systems. Understanding water hammer is essential within the Incident Command System (ICS) to maintain operational integrity on the fireground.
Category context: Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.
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