Application of Detectors
When designing a fire protection system, it is important to
understand and identify the characteristics and fuel material of a
potential fire, the environment in which the detector will be sited
and the risk of fire.
Relative performance of Apollo point detectors in test fire:
Smoke Detectors
Smoke detectors are recommended for general use as they give the
highest level of protection. They must be used in escape routes to
provide sufficient early warning to allow the evacuation of
occupants. There are two types of smoke detectors that are
recognized as good general purpose detectors and they are available
in both
conventional and
analog addressable:
Ionization smoke detectors
- High sensitivity to fast burning, flaming fires that produce
small smoke particles
- Widely used for applications such as printing workshops, paper
mills, and paint stores
- Good for general purpose
Optical smoke detectors
- Suited to detecting slow burning, smouldering fires which
produce large smoke particles
- Used in areas such as bedrooms, escape corridors, and
electrical switch rooms
- Also good for general purpose
Heat Detectors
Apollo offers both
conventional and analog adressable heat
detectors. These detectors offer protection in environments
that are dirty or smoky in normal conditions such as kitchens or
garages. They are also effective in areas that contain high levels
of airborne particles such as water vapor and exhaust fumes.
It is important to note that heat detectors will respond
only when a fire is well-established and generating a high heat
output.
Rate-of-rise detectors
- Designed to sense rapid increase in temperature
- Effective in environments where the ambient temperature is
normal
Fixed temperature heat detectors
- Signals alarm when temperature surpasses a pre-defined
level
- Effective in areas with fluctuating temperatures, such as
boiler rooms
- Good for environments with a particularly high temperature
Multisensor Detectors
Multisensor detectors combine features of optical and heat
detectors. This means they provide good general detection that
responds to both smouldering fires (optical) and fast-burning fires
(heat).
- Combined sensors enhance the detection performance
- Improve resistance to factors that may produce false
alarms
- Suited for environments such as hotel bedrooms and warehouse
loading bays
Apollo has both
conventional and analog
adressable multisensor detectors.