One of the core components of a gas system is the gas regulator, which is used to stably output high-pressure gas from the ...

Requirements for safety-relevant Human Machine Interfaces (HMIs) for train operators are becoming more common around the world. The evolution toward safety-relevant HMIs for train control is already ...

Ryan Mayfield led an informative discussion on the history of the NEC PV Hazard Control System rules and the latest changes to the UL 3741 standard.

Commercial buildings require emergency lighting to facilitate the safe egress of occupants in the event of a power outage or other emergency. Emergency specifications that meet UL 924, Standard for ...

Over the last century, boiler controls have evolved significantly. Initially, technological advancements in infrared and ultraviolet flame detection enabled automated systems to replace 24-hour boiler ...

The control systems world is changing. Historically, process control systems—which include all industrial control, process control, supervisory control and data acquisition (SCADA), distributed ...

Smoke detectors, not the dampers, are connected to the fire alarm system (if present) in Chapter 7 applications as shown in Figure 6. Chapter 9 systems have various allowable methods for detection and ...