Goodmorning, I am a DIYer, and have worked with relays many times before for heaters, motors, etc, but not for computers/sensitive electronics.
I am creating a battery backup for my home security system (see picture below). I got nervous after reading about voltage spikes from the coil de-energizing. I have tried searching for quite a while, and I don't understand what to do when the relay is triggered by AC mains... or if this is even an issue worth worrying about.
Before someone mentions it: the security system has its own batteries internally, but they only last about a day. Therefore, the switching time of a mechanical relay will be a non-issue.
I am creating a battery backup for my home security system (see picture below). I got nervous after reading about voltage spikes from the coil de-energizing. I have tried searching for quite a while, and I don't understand what to do when the relay is triggered by AC mains... or if this is even an issue worth worrying about.
Before someone mentions it: the security system has its own batteries internally, but they only last about a day. Therefore, the switching time of a mechanical relay will be a non-issue.