'Interconnected smoke alarm installation' presentation slideshows

Smoke Alarm Installation and Interconnected Smoke Alarm Installation

Smoke alarms are your first line of defence in the event of a fire. Smoke alarms come in two main different types which are Ionization and photoelectric. Ionization smoke alarms have an ionization chamber inside the smoke alarm unit itself. The smoke alarm chamber consists of two plates about a centimetre apart. One of the plates is charged positive by the battery or transformer in AC models and the other plates is negative.

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