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Linear Heat Detection System

A Linear Heat Detection (LHD) system is a fire detection device that uses a cable or wire to detect heat along its length.

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How It Works:

  • The LHD cable consists of two steel conductors insulated by heat-sensitive polymers.

  • When exposed to heat from a fire, the polymers melt, causing the conductors to contact and create an electrical short.

  • This short sends a signal to the fire alarm panel, triggering an alarm and potentially activating fire suppression systems.

 

Benefits:

  • Continuous Detection: Provides up to 10,000 feet of continuous heat detection.

  • Durability: The cables are durable and long-lasting.

  • Versatility: Can be customized for various applications and environments.

  • Reduced False Alarms: Some systems, like the Protect wire, have features to minimize false alarms.

 

Applications:

  • Ideal in environments where other detection methods may be inefficient or prone to damage.

  • Suitable for physically demanding or hazardous areas, or where space is limited.

 

For more detailed information, you can refer to resources provided by the Singapore Civil Defence Force (SCDF) and other authoritative sources.

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