11 - Two Wire Smoke Detectors - Introduction to Fire Alarms

I'm explaining how fire alarm systems work for new technicians or other employees who deal with these systems. This is my 11th video in a string of many Khan Academy-styled lessons. This video describes how 2 wire smoke detectors are wired to conventional panels, what happens when they go into alarm, and the limitations of two wire devices.

Видео 11 - Two Wire Smoke Detectors - Introduction to Fire Alarms канала Joe Klochan