Different Types of Fire Detection

Jan 3, 2024 | Uncategorized

Different Type of Fire Alarm System as described by Staines Safety Services Ltd

Grade A Fire Alarm System:

Grade A Fire Alarm System has the following requirements:

  • Smoke or Heat detectors.
  • Heat/Fire detectors.
  • Call points.
  • Central Control Panel and sounders.

Grade A fire alarm system is usually required for commercial or HMO properties and an inspection is required at periods not exceeding 6 months.

Grade D Fire Alarm System:

In fire alarms, there are different grades that show how fire-resistant they are. Grade D fire alarm systems have a CEN Class 3 fire alarm sounder and notification appliances that will tell people in the building if a fire starts. A fire alarm is a device that detects fire and sounds an alarm so that people can get out of the building safely before they might be harmed. The system has to be certified and should be put in the logbook.

A Grade D fire alarm system has to have one manual call point for every 75m² of floor space, and all power must be turned off when not in use.

In Grade D there is two types of coverage LD2 and LD3:

LD2 coverage is awarded to a property that has hard-wired mains interlinked alarms in every room, hallway, lounge, and kitchen.
LD3 coverage is awarded to a property that has hard-wired mains interlinked alarms in, hallway, lounge, and kitchen.

Properties that are bigger than a studio apartment need mains interlinked hard-wired fire alarms, whereas wether to get an LD2 or LD3 coverage is up to the owner according to his/her budget.