Fire detection systems

FIRE DETECTION SYSTEMS

Fast and efficient fire detection systems are the key success factor in all kinds of fire prevention and fighting.

The selection of the right system, as well as the appropriate location, number and type of sensors, are essential when it comes to designing any fire detection system (fire extinguishing control, or action, alarm and/or evacuation plans).

CONVENTIONAL SYSTEMS

Appropriate for small systems, they identify the zone where the fire alarm originated, with 2-wire lines per zone and a maximum capacity of 20 items each.

SMART SYSTEMS

These are versatile systems, appropriate for point-to-point identification of each of the sensors and/or any peripherals connected to the fire alarm panel. They may accommodate a large number of sensors, with loops of 99 or more sensors each, plus the possibility of having several loops in each alarm panel, depending on its model.

They are versatile enough to allow setting up a network of several panels, in order to expand the system capacity, supplemented with graphics software, repeaters, and alphanumeric display for event registration purposes.

The sensitivity of each sensor may be regulated as a function of the facilities and/or risk covered by each.

ASPIRATED SMOKE SYSTEMS

They offer enhanced sensitivity vis-à-vis smart smoke sensors.
Their operating principle consists in ongoing sampling of ambient smoke through capillary tubes with calibrated orifices running throughout the protected area. The samples are analyzed using a laser camera which measures the amount of smoke in the air and, based on a comparison with pre-established thresholds, detects whether a fire has started.

These systems feature zone-linked fire identification, and accordingly they may be used as peripherals by smart fire alarm panels, to which alarm signals are sent out.

EXTINGUISHING CONTROL SUBSTATION

These stations are specifically designed for controlling fire suppression systems, using cross-zone detection, i.e. the signal of the first detector triggers the alarm, while the signal from the report of a second detector triggers the fire suppression system.

It is fitted with devices that generate audible and visible alarms, adjustable triggering delays, and triggering blocking by means of aborting push-buttons.

FIRE DETECTION SYSTEM PERIPHERALS

These are basically the field elements making up the fire detection system, being responsible for detecting and raising alarms in the case of any potential fire event. They include:

  • Smoke sensors.
  • Conventional and explosion- proof fire sensors.
  • Smoke/temperature combined sensors.
  • Gas sensors.
  • Flame sensors.
  • Smoke sensing barriers.
  • Manual push buttons.
  • Sirens.
  • Light alarms.
  • Repeater stations.

MELISAM, engineering department designs, supplies and installs fire detection systems appropriate for each risk using UL/FM approved items, as per international standards.

MELISAM INGENIERÍA always uses UL FM-approved products manufactured by Edwards, a world-wide leader in specific equipment for Fire Detection Systems.