Systems and detection goff

Instructor

Scott A. GoffDeputy State Fire Marshal

Captain/EMT-I Stanfield Fire District

FIRE PROTECTION SYSTEMS

Fire alarm systems alert occupants and other parties of an emergency condition.

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Alarm systems consist of several components you should know about.

20–3

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There are several alarm system components firefighters should know.

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There are several alarm system components firefighters should know.

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(Cont.)

There are several alarm system components firefighters should know.

20–6

(Cont.)

There are several alarm system components firefighters should know.

20–7

REVIEW QUESTION

What are the basic components of an alarm system?

20–8

There are several types of alarm signaling systems in use.

20–9

(Cont.)

There are several types of alarm signaling systems in use.

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REVIEW QUESTION

How do protected premises and station alarm systems differ?

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Alarm-initiating devices send a signal to the alarm system when fire is present.

20–12

Pull stations allow occupants to initiate the fire signaling system.

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Heat detectors activate when temperatures in monitored area reach a predetermined point.

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There are several types of fixed- temperature detectors.

20–15

(Cont.)

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There are several types of fixed- temperature detectors.

Rate-of-rise detectors signal when temperatures rise quickly.

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There are several types of rate-of-rise detectors.

20–18

Smoke detectors and alarms both detect the presence of products of combustion.

20–19

Photoelectric smoke detectors can respond more quickly than ionization- type.

20–20

Ionization smoke detectors react to ionized molecules in the chamber.

20–21

There are several types of power sources used for these devices.

20–22

The basic types of flame detectors detect light in different spectrums.

20–23

Flame detectors are among the fastest to respond, even in non-fire conditions.

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Fire-gas detectors operate by detecting gases that may be released.

20–25

Air Sampling Detectors

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Combination detectors combine various systems into a single device.

20–27

REVIEW QUESTION

What are the major categories of alarm-initiating devices?

20–28

Automatic sprinkler systems are an integrated system of pipes, sprinklers, and control valves.

20–29

There are two general types of automatic sprinkler systems.

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Understanding sprinkler systems also requires other information.

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Sprinkler systems have several effects on life safety during a fire.

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Sprinkler systems are made up of several components.

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Sprinklers are fixed spray nozzles that operate to discharge water.

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All of the common release mechanisms for sprinklers respond to heat.

20–35

Sprinkler deflectors create the discharge pattern of water downward.

20–36

Sprinkler storage cabinets are usually installed near a riser or valve.

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Most system main water control valves are indicating valves.

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There are other operating valves also used on sprinkler systems.

20–39

Water flow alarms initiate when water begins to flow in the system.

20–40

The water supply for a sprinkler system must address several considerations.

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The water supply for a sprinkler system must address several considerations.

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REVIEW QUESTION

What are the fundamental aspects of a sprinkler system?

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Each type of sprinkler system requires understanding of several concepts.

20–44

(Cont.)

Each type of sprinkler system requires understanding of several concepts.

20–45

(Cont.)

Each type of sprinkler system requires understanding of several concepts.

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(Cont.)

Each type of sprinkler system requires understanding of several concepts.

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(Cont.)

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Each type of sprinkler system requires understanding of several concepts.

20–48

Residential sprinkler systems require understanding of several concepts.

20–49

REVIEW QUESTION

How do the application methods for sprinkler systems differ?

20–50

Standpipe and hose systems are designed for a specific purpose.

20–51

Standpipe systems are made up of several components.

20–52

Standpipe systems are regulated by two NFPA® standards.

20–53

Standpipe systems are classified in three different groups.

20–54

There are several types of standpipe systems you should know about.

20–55

(Cont.)

There are several types of standpipe systems you should know about.

20–56

Know which connection you are making!

Fire Department Connections

20–57

REVIEW QUESTION

How are standpipe systems classified?

20–58

Smoke management systems remove and/or control the spread of smoke.

20–59

Smoke control strategies use various methods to remove smoke.

20–60

Each type of smoke control systems may be dedicated or non-dedicated.

20–61

The firefighters’ smoke control station provides a location for monitoring.

20–62

REVIEW QUESTION

What types of smoke control systems can be used at an incident?

20–63

• Many buildings are protected, partially or fully, by fire protection systems that range from simple to complex.

• These systems can perform a variety of functions and it is important that these are identified during pre-incident surveys to ensure firefighters understand how to operate in these structures.

Summary

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