LHS Cable Fire Detection


Linear Heat Sensing (LHS) (also known as Linear Detection Wire or Linear Heat) is a very commonly used method of fire detection. It can detect a fire anywhere along the length of the cable, and can be of lengths in excess of a kilometer.

Applications can range from building fire alarm systems to mobile plant machinery.

Advantages :

  • Simple in construction
  • Controller complexity is low
  • Controllers are available with distance location to the point of the fire, also with 4-20mA output
  • Easily deployed
  • Can cover a large area
  • Small and Compact
  • Supported by the majority of fire controller panels

Advantages :

  • Slow response time – up to 30 seconds
  • Lack of information about fire