Checking circuit safety

Discussion in 'General Electronics Chat' started by sebastianpatten, Feb 7, 2011.

  1. sebastianpatten

    Thread Starter New Member

    Nov 28, 2010
    Hi there,

    I'm pretty new to electronics, but am working towards building my home alarm system. Before I wire it all up and leave it running 24/7 what are the best practices for checking a circuits safety?

    The last thing i want to do is come home and find my house on fire :p

    Off the top of my head i can think of:
    + Running it through software (this might tell me if anything is overloaded or dangerous?).
    + Posting a schematic on the forums and getting some one to check it over
    + Paying for a professional in real life to check it over?

    Please let me know what people normally do.

  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    Better tell us about ur supply details and the type of alarm.
  3. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    I dare say most of us rely on our experience and knowledge to ensure safety. Lacking that increases your exposure. Consider how your insurance company will regard the cause of a claim.

    4 things;
    Isolation, overcurrent,design within limitations, and practical implementation.

    You'll find UL, CSA, or similar ratings on packaged devices, that have met guidelines, and as per manufacturers instruction, installed professionally.
  4. sebastianpatten

    Thread Starter New Member

    Nov 28, 2010
    Ok I will google those four terms. Thats a starting point for me :)
    Any more input is appreciated.
  5. floomdoggle

    Senior Member

    Sep 1, 2008
    Most alarms run @12 volts, so the box should be your main concern for fire. Use a metal box. Keep wires off hot water/heating pipes. Are you using a commercially available system, or do you plan on making the circuits yourself?