WEB SCRIPT ELECTRICAL INSTALLATION AND MAINTENANCE NC II
Sector ELECTRICAL AND ELECTRONICS
Qualification: ELECTRICAL INSTALLATION AND MAINTENANCE NC II
Unit of
Competency: Install wiring devices of floor and wall mounted outlets, lighting
Learning fixtures/switches, and auxiliary outlets
Outcomes:
Developer/s: Select Wiring Devices
OBJECTIVES JOSE M. JERIOS
INTRODUCTIO At the end of this unit, you should be able to:
N
LESSON 1 1. Identify electrical devices applicable for the job specification.
2. Select the electrical devices suited to the job requirement.
3. Install selected wiring devices in accordance with the standard set by the PEC.
Wiring devices are current-carrying electrical or electronic products that serve primarily as a connection or control
point for electrical circuits) as well as certain non-current-carrying wiring devices and supplies.
Selecting Wiring Devices
TOPIC 1 Types of Wiring Devices
Floor outlet
Ground fault current interrupting device
Grounding type convenience outlet
Light switch
CCTV Recorder
CCTV Security Camera
Dome Camera
Bullet Camera
Covert Camera
PTZ Camera
CCTV Monitor
Power Supply
FIRE DETECTION AND ALARM SYSTEM
Manual Pull Station Or Manual Call Point
Smoke Detector
Conventional FDAS
Addressable FDAS
Type Description
Floor Outlet An electrical outlet whose
face is level with or recessed
Ground fault into a floor. Also known
current as floor plug
interrupting
device is a type of circuit breaker
which shuts off electric power
when it senses an imbalance
between the outgoing and
incoming current.
Grounding type Is a grounding wire
convenience
outlet neutralizes any
dangerous electrical curr
ent into the ground .
A grounding line is used
to protect your appliances
from surges or
overvoltage problems
Light switch
A switch, usually one on a
wall in a building, used to turn
on or off the light.
CCTV Security There are many different
Camera security cameras on the
market that are designed to
Dome Camera support different applications
Bullet Camera and mounting option. May be
a dome camera, bullet
Covert Camera camera, covert camera, or ptz
camera
PTZ Camera
are commonly used in
surveillance systems
inside of homes, casinos,
retail stores, and restaurants.
Bullet security cameras are a
type video surveillance
camera that is typically small
and shaped like a
rifle bullet shell or lipstick
case.
They are usually installed
inside common household
items like mirrors, passive
infrared detectors and smoke
detectors to prevent
suspicion.
In television
production, ptz controls are
used with professional
video cameras in television
studios, sporting events, and
other spaces.
CCTV Monitor also known as a screen or a
visual display unit ( VDU)
Power Supply A CCTV power supply box,
also known as a
FIRE power distribution box, allows
DETECTION surveillance system installers
AND ALARM to easily manage the power to
SYSTEM multiple CCTV cameras at a
central point (usually at the
location of the DVR)
A fire alarm system has a
number of devices working
together to detect and warn
people through visual and
audio appliances when
smoke, fire, carbon monoxide
or other emergencies are
present
Manual Pull It is installed in the normal exit
Station Or
Manual Call path and is designed
Point
for human intervention in case
of fire.
Smoke Detector Basically smoke entering the
smoke detector chamber
disrupts - the light beam
causing an alarm signal to be
initiated more sensitive to
smoldering fires
Sirens
Output Devices Bells
Buzzers
Horns
Voice Drivers
Conventional conventional fire sensors and
FDAS manual call points shall
provide for continuous
surveillance the area.
main fire alarm panel shall
derive signals from the zone
indicating panels and audible
and visual annunciation shall
be provided in the event of
fire.
repeater panel shall be
located in security house / fire
station to alert fire fighting /
security personnel.
fire detectors shall be selected
depending on the type of fire
expected in a particular area
Addressable it is an automatic fire detection
FDAS & alarm system consists of
fire detectors & manual call
points positioned in zones/
loop through out a
building(area).
these are wired to control &
indicating equipment which
shows the location of alarm
call, & actuates audible alarm
sounders.