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Design And Construction Of Fire Alarm System In A Two Storey Building
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IMPORTANCE OF THE STUDY
It is hoped that the fire alarm unit will
find useful application in homes, offices, hospitals, restaurants,
market places, service centers etc to reduce the outbreak of fire.
DEFINITION OF TERMS
1.6.1 SWITCH
TYPES OF MECHANICAL SWITCH
(a) Push-bottom switch
(b) Slide switch and toggle switch
(c) Micro switch
(d) Water switch
(e) Electromagnetic relay
(f) Read switch
FUSE
A
fuse is a device for opening a circuit by means of conductor designed
to meet when on excessive current flow. The fuse comprises of all the
parts that form the complete device. There are three types of fuses.
(a) Rewireable fuses
(b) Catridge fuses
(c) High breaking capacity (HRC) fuses.
CONDUCTOR
This is a device or material which offer a low resistance to the flow of current. A conductor must be:
(a) Of low electrical resistance
(b) Mechanically strong and flexible
(c) Relatively cheap
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