The 'High Velocity Water Spray (HVWS) System' is a fixed fire protection system designed to provide rapid fire control and cooling for high-risk equipment such as 'oil-filled transformers, generators, turbines, and other electrical or process equipment'. The system uses specially designed open spray nozzles to discharge water at high velocity and in a specific spray pattern, covering the protected equipment uniformly. When a fire is detected, the deluge valve operates and allows water to flow through the piping network to the HVWS nozzles. The high-velocity water spray helps 'control and extinguish fire, cool the equipment, prevent fire spread, and reduce the risk of re-ignition', providing reliable protection for critical installations.