What is Firewire in firefighting?
FIREWIRE is the fire warning wire in the form of a stainless steel capillary with coaxially seated electrode. At an increase of temperature, both the resistance and capacity changes. If a certain threshold value is exceeded, the linear detector triggers the fire fighting system.
What is a continuous element fire detection system?
A continuous-loop detector, or sensing system, permits more complete coverage of a fire hazard area than any of the spot-type temperature detectors. The elements may be of equal or varying length and of the same or different temperature settings.
What are the types of continuous fire detection system?
Two widely used types of continuous-loop systems are the thermistor type detectors, such as the Kidde and the Fenwal systems, and the pneumatic pressure detector, such as the Lingberg system. (Lindberg system is also known as Systron-Donner and, more recently, Meggitt Safety Systems.)
What are the two basic types of continuous loop fire detection system?
Most modern aircraft use a fire detection system called a continuous loop; of which the two main types are electrical and pneumatic.
What is Firewire detection?
The ETI linear electrical fire wire is an excellent method of fire event detection. When exposed to direct fire, the insulation on the two signal cables breaks down very quickly and creates electrical continuity via the uninsulated copper cable, signaling fire alarm and system actuation. …
How does a fire detection wire work?
When the ambient temperature meets or exceeds the detector’s fixed temperature, the polymer melts. As it melts, the steel conductors make contact and initiate an electrical short that then sends a signal to the fire alarm panel of an alarm condition.
What is the principle of operation of the continuous loop fire detector system?
A fire detection system operates on the principle of a buildup of gass pressure within a tube proportional to temperature.
What is the principle of operation of the continuous loop fire detector system sensor?
A fire detection system operates on the principle of a buildup of gas pressure within a tube proportional to temperature.
What is Kidde system aircraft?
Kidde Technologies Inc., a part of Collins Aerospace, is an industry leader in the design and manufacturing of fire detection and suppression systems for aircraft.
What are the 2 most common type of pneumatic detection type?
The two most common are the latching valve and the slide valve. Each operates differently but essentially performs the same function. The latching valve is made up of an electromagnet and a small poppet valve.
What is a continuous loop fire detection system?
A continuous-loop detector, or sensing system, permits more complete coverage of a fire hazard area than any of the spot-type temperature detectors. Continuous-loop systems are versions of the thermal switch system. They are overheat systems, heat-sensitive units that complete electrical circuits at a certain temperature.
What kind of wire does a fire detection system use?
All linear electrical fire wire detection systems must use a System Control and Indication Panel. The linear electric fire wire is very robust giving the cable assembly good mechanical strength for all engineered installations.
How is the integrity of a fire detection system tested?
The integrity of the continuous-loop fire detection system may be tested by actuating a test switch in the flight deck, which switches one end of the sensing element loop from its control circuit to a test circuit, built into the control unit, that simulates the sensing element resistance change due to fire.
How does the ETI Fire wire detection system work?
FIRE WIRE DETECTION SYSTEM The ETI linear electrical fire wire is an excellent method of fire event detection. It is unique in the market because it uses a purpose designed and manufactured three core cable. There are two signal cables and an uninsulated copper wire all sheathed into one insulated wire that is connected to the ETI control alarm.
