CAN ULC-S548-15 PDF Download

CAN/ULC-S548-15 is a standard that specifies the requirements for devices and accessories used in water type extinguishing systems. The standard covers alarm initiating devices, supervisory detecting devices, and accessories for automatic water supply control valves.

Under alarm initiating devices, the standard includes specific requirements for vane and paddle type waterflow switches, as well as pressure actuated waterflow switches. These devices are responsible for detecting the flow of water in the system, which triggers an alarm to indicate a possible fire.

The standard also covers supervisory indicating devices, which are used to monitor and detect any abnormalities in the system. This includes pressure supervisory switches, shut-off valve position supervisory switches, water level supervisory switches, and temperature supervisory switches. These devices ensure that the system is properly functioning and can detect any issues that may arise.

Additionally, CAN/ULC-S548-15 addresses accessories for automatic water supply control valves. This includes water motors and gongs, which are used for signaling and alerting purposes. The standard also includes other electrical and non-electrical components that are commonly used in water type extinguishing systems.