This is a simple fire alarm circuit using Germanium Diode and 555 timer. In this circuit Germanium Diode plays very important role in detecting the fire.This is a simple fire alarm circuit using ...

Article 760 covers the installation of wiring and equipment for fire alarm systems. Residential smoke alarm systems, including interconnecting wiring, are not covered by Art. 760 because they are not ...

In the February 2024 issue, I introduced the what rules – the category of rules that tell us what to install in a building, typically segmented by occupancy classification and maximum allowable ...