hv electrical day1
TRANSCRIPT
7/23/2019 HV Electrical Day1
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Electricity & Electronic Systems
SAFETY
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When are Safety Glasses required?
All students and visitors MUST ear safety !lasses at
any time there is any active la" activities
This includes the classroom and the lar!er la" area
#oaner !lasses are availa"le for visitors
Students must su$$ly their on !lasses
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%o do !et Safety Glasses?Glasses can cost as little as '()** a $air
nstructor can sell you !lasses
Tool truc+s that visit school have very
comforta"le !lasses
Any auto $arts store ill stoc+ a variety of
!lasses
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,ontact lenses do not "elon! in
the sho$Many solvents- chemicals- fuels and $articles
can "e tra$$ed ne.t to- and dama!e- the eye
/ama!e com$ounded "y earin! contacts)
/o not ear contacts in the sho$ environment
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%o do see ithout contacts?
Wear safety !lasses over $rescri$tion!lasses
0"tain side shields to use ith $rescri$tion!lasses 1availa"le in Weldin! de$t)2
3rescri$tion safety !lasses ith side shieldsare a !ood investment
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4asic Electrical Theory
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What can you learn from this lesson?
f you understand ho an electrical circuit
is su$$osed to or+
And
You can use a 5oltmeter
You can fi. electrical stuff
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/efine Electricity
The a"ility to $erform 6or+7 "y movin!
electrons "eteen atoms
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What do e need to ma+e an
electrical circuit 6Wor+7
4rea+ into !rou$s and rite a list of
the "asic requirements to control anduse electricity
Thin+ of hat has to ha$$en to turn on
a li!ht)
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What do e need to ma+e an
electrical circuit 6Wor+73oer Source
Wirin! or ,onductors 1insulated side and !round2
,ontrol /evice 1sitch2
#oad
,ircuit 3rotection 1fuse2
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3oer Source
Alternator $rovides $oer for runnin! vehicle
1Alternator $rovides $oer for runnin! vehicle2
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#oad
Alternator $rovides $oer for runnin! vehicle
#i!ht "ul"- motor- solenoid- etc)
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,ontrol /evice
Alternator $rovides $oer for runnin! vehicle
Sitch- 8elay- ,om$uter
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Wirin! or ,onductors
Alternator $rovides $oer for runnin! vehicle
nsulated and Ground
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,ircuit 3rotection
Alternator $rovides $oer for runnin! vehicle
Fuse or ,ircuit 4rea+er
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Alternator $rovides $oer for runnin! vehicle
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Alternator $rovides $oer for runnin! vehicle
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Alternator $rovides $oer for runnin! vehicle
Electrical 6or+7 can "e in the form of heat ener!y
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Alternator $rovides $oer for runnin! vehicle
The li!ht !ets hot and !ives off li!ht
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Electrical
or+ can
"ema!netism
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Ma!netism
$ulls in the
solenoidand ma+es
the starter
turn
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Start on #a" 9:
3oer Source
Wirin! or ,onductors
1insulated side and !round2
,ontrol /evice 1sitch2
#oad
,ircuit 3rotection 1fuse2
/i h th 3 S
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/ia!rams sho the 3oer Source
at the to$- !round at the "ottom
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/ia!rams sho the 3oer Source
at the #eft- !round on the 8i!ht
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Wirin! /ia!rams
; Wirin! dia!rams illustrate ho a circuit is
su$$osed to or+
; f you +no ho it should or+- it is easier
to fi!ure out hy it doesn<t or+
Wh t l t i l
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What can cause an electrical
circuit to fail?
; A "ad or defective= 3oer Source
Wirin! or ,onductors
1insulated side and !round2
,ontrol /evice 1sitch2
#oad
,ircuit 3rotection 1fuse or circuit "rea+er2