Electrical Workshop Module2

7/28/2019 Electrical Workshop Module2

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Module-2

Hand Tools


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Identify different hand tools used inworkshops

Understand the basic functions and types ofhand tools.

Be aware of workshop tools safety rules.


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Introduction Common Tools 1.Screwdrivers

2.Wire Strippers

3.Side Cutters 4.Wire Crimpers

Hand Tools Safety Class and Lab Activities


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Hand tools applications


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1.Screwdrivers (Purpose):

insert and tighten screws loosen and remove screws


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Screwdrivers (Types): identified by the shapeof their headinto different types.


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2.Wire strippers (purpose): are small, hand-held devices used to strip the insulation fromelectric wires.


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Wire strippers (types): manual and automatic


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Strip wire with automatic stripper (video)

Activity 3: How to use wire strippers


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Items Required:

Wire stripper Wires


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1.Hold the wire stripper in your hand

2.Put the wire that you want to remove the

insulation from into the jaws of wire stripperup to the length you need

3.Squeeze the handle. The jaw will remove thewire insulation.

4.Once you finish squeezing the handle, releasethe handle and the jaw will open again. SeeFigure

5.Now, the insulation of the wire is removed.


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3.Side Cutters (purpose): used for cuttingextra components leads.


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4.Wire Crimpers (Purpose):used to connecttwo wires or two conductors together.


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Items Required:


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http://localhost/var/www/apps/conversion/tmp/scratch_7/Crimping%20terminals%20001.flv


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How to use a wire crimper to crimp pins


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1.Bend off a pin from the strip


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Insert the stripped wire into the crimp pin as

shown in the picture above.


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Place the crimp into the crimper as shown in the

figure above


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4.Squeeze and insert into housing


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Basic Rules for hand tools Safety: To prevent accidents that are caused by hand tools,

follow the coming tips:


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To prevent accidents that are caused by hand tools,follow the coming tips:


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Indicate the safe and unsafe behavior in the followingpictures. Give Reasons


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Fill in the table below:


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Items Required:


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Steps: Hold the wire stripper in your

hand Put the wire that you want to

remove the insulation from intothe jaws of wire stripper up tothe length you need

Squeeze the handle. The jawwill remove the wire insulation.

Once you finish squeezing thehandle, release the handle andthe jaw will open again theninsulation of the wire isremoved.


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I am used toremove a screw,who am I ?I am having thehead symbolshown below, whoam I ?

Whoam I?

I am used toconnect twoconductorstogether, who amI?

Who am I? Who am I?

I am having thehead symbolshown below, who am I ?

Who am I? I am used to cutextra electricalleads, who amI?

1 2 3

4 5 6

7 8 9


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Check your tools regularly for wear anddamage

Use the correct tool for the job

Keep your tools clean and in a goodconditions

Use appropriate safety equipments

Keep hands a way from the moving parts


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1 2

3


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Place the cores into their correct positions as shown

below

Core color Core marking Core position

BROWN Live (L) FUSE (RIGHT HANDPIN)

BLUE Neutral (N) LEFT HAND PIN

GREEN/YELLOW Earth (E) EARTH PIN (TOP)

4


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5 6Video
http://localhost/var/www/apps/conversion/tmp/scratch_7/How%20To%20Re%20Wire%20A%20Plug.flvhttp://localhost/var/www/apps/conversion/tmp/scratch_7/How%20To%20Re%20Wire%20A%20Plug.flv


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Be prepared to a Quiz next Class in module#2. Do Worksheets 1 and 2 (From my Wiki). Next Class: Start with Module #3

Electrical Workshop Module2

Documents

Transcript of Electrical Workshop Module2