Design rules for Fire Detection & Alarm

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Fire Detection & Alarm

  • Detector coverage: smoke ≈ 60 m², heat ≈ 20 m² (ceiling ≤ 7.5 m)
  • Battery Ah = (Is x 24 h + Ia x 0.5 h) x 1.25
  • Example: Is 0.4 A, Ia 2 A → 13.25 Ah

Products for this system

Cable size calculatorFire alarm and detection systems

Products and services

Standards cited by number for reference; verify designs with a qualified engineer.