ujian penebatan

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ABOUT ME

MUTIA SUMIHAH MUSTAPHA

850408-03-5612

PEDAGOGI SESI 3 / 2010

UJIAN PENEBATAN

UJIAN PENEBATAN

Pengenalan

Tujuan pengujian

Langkah-langkah

Nilai rintangan penebatan

Alat-alat pengujian yang sesuai

PENGENALAN

Kekuatan penebatan pengalir-pengalir, dan alat elektrik dalam keadaan baik serta tidak membocorkan arus ke bumi apabila pengalir itu diberikan bekalan.

Sekiranya rosak sesuatu peralatan, seseorang yang menggunakan atau terpegang akan mendapat kejutan elektrik, lebih-lebih lagi jika arus bocor kebumi tidak berfungsi atau berkendali.

TUJUAN

Pastikan tiada arus bocor antara konduktor bertebat.Menyebabkan kematian pada arus 0.05 Amp.Mendatangkan bahaya pada kadaran 4800 ohm.Mempercepatkan kelunturan (deterioration) kepada penebat yang menyebabkan kerugian tenaga elektrik.

LANGKAH-LANGKAH

Bekalan utama ditutup (OFF).

Tanggalkan semua kabel alat-alat elektrik

Lampu dan kipas ditanggalkan

Semua alat elektronik perlu dipisahkan

http://rds.yahoo.com/_ylt=A0S020l1JxpMi2gAbu2JzbkF;_ylu=X3oDMTBpZTByOGFiBHBvcwMyBHNlYwNzcgR2dGlkAw--/SIG=1g9dsikka/EXP=1276868853/**http:/images.search.yahoo.com/images/view?back=http://images.search.yahoo.com/search/images?p=SWITCH+OFF+PLUG&ei=utf-8&y=Search&w=605&h=425&imgurl=www.techviva.com/wp-content/uploads/2009/12/Ace-Plug.jpg&rurl=http://www.techviva.com/ace-plug/13440&size=52k&name=Ace+Plug&p=SWITCH+OFF+PLUG&oid=c3e15af8c1009fd6&fr2=&no=2&tt=3699&sigr=116p6umo5&sigi=11o0ard5v&sigb=12gcl6q3q
http://rds.yahoo.com/_ylt=A0S020vqJxpMFkoAtpyJzbkF;_ylu=X3oDMTBqaHBscmZmBHBvcwMxMwRzZWMDc3IEdnRpZAM-/SIG=1epkibuoi/EXP=1276868970/**http:/images.search.yahoo.com/images/view?back=http://images.search.yahoo.com/search/images?p=SWITCH+OFF&ei=utf-8&w=600&h=600&imgurl=www.rosescholars.net/images/off_switch_2_ohff.png&rurl=http://www.rosescholars.net/&size=87k&name=off+switch+2+ohf...&p=SWITCH+OFF&oid=c4a59318de24737e&fr2=&no=13&tt=276138&sigr=10svnpamk&sigi=11hgtldjm&sigb=12227774h

LANGKAH-LANGKAH

Menggunakan alat penguji (Insulation

tester Meter).

Punca Hidup dan Neutral disambungkan dan disentuhkan

dengan alat penguji

Satu lagi disentuh kepada punca Bumi

Hasil daripada ujian

http://www.google.com.my/imgres?imgurl=http://www.ilplabuan.gov.my/download/Jumadi%20Artikel%20Teknikal%202008_files/image005.jpg&imgrefurl=http://www.ilplabuan.gov.my/download/Jumadi%20Artikel%20Teknikal%202008.htm&usg=__A_Vm40381aLcRXyj9LEHseYc3mQ=&h=748&w=628&sz=38&hl=en&start=17&itbs=1&tbnid=CVFxbu8j7ER6WM:&tbnh=141&tbnw=118&prev=/images?q=UJIAN+PENEBATAN&hl=en&gbv=2&tbs=isch:1

LITAR PENDAWAIAN

NILAI RINTANGAN

Nilai rintangan penebatan minimum fasa ke bumi atau ke

neutral adalah 1 mega Ω

Pengujian dibuat pada litar

pendawaian & alat elektrik sahaja

Nilai rintangan penebatan minimum

alat-alat elektrik adalah tidak kurang

daripada 0.5 mega Ω

ALAT ELEKTRIK

ALAT PENGUJIAN

MULTIMETER

DIGITAL ANALOG

http://i.ehow.com/images/a04/od/li/test-circuit-continuity-1.2-800X800.jpg
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http://rds.yahoo.com/_ylt=A0S0205NBBlMTh8AieiJzbkF;_ylu=X3oDMTBqaWRlZWhnBHBvcwMxOQRzZWMDc3IEdnRpZAM-/SIG=1i0974dgs/EXP=1276794317/**http:/images.search.yahoo.com/images/view?back=http://images.search.yahoo.com/search/images?p=multimeter+analog+AND+digital&ei=utf-8&fr=slv7-msgr&w=622&h=803&imgurl=upload.wikimedia.org/wikipedia/commons/9/93/Analog_Multimeter.jpg&rurl=http://www.douamaini.ro/?p=197&size=173k&name=multimetru+analo...&p=multimeter+analog+AND+digital&oid=44907cfb76a8348e&fr2=&no=19&tt=219&sigr=10ufr5fi3&sigi=121jqrep1&sigb=132nvqq2t

AKTIVITI

S1

Antara yang berikut, yang manakah tujuan utama ujian

penebatan dilakukan ?

1. Untuk menguji kebolehan pelajar.

2. Untuk membuktikan teori pembelajaran.

3. Untuk memastikan supaya tidak ada arus bocoran di

antara konduktor bertebat.

4. Untuk menunjukkan kebolehan pengajar dalam

membuat demostrasi kepada pelajar.

A

B

C

D

http://www.google.com.my/imgres?imgurl=http://kyoske.files.wordpress.com/2008/12/cant-stop-thinking-cartoon.gif&imgrefurl=http://kyoske.wordpress.com/2008/12/&usg=__P6GKKSOaSALzocm7u1zOwCsdZZ4=&h=295&w=319&sz=5&hl=en&start=5&itbs=1&tbnid=mqqE2y4hyV34DM:&tbnh=109&tbnw=118&prev=/images?q=cartoon+thinking+image&hl=en&sa=G&gbv=2&tbs=isch:1

AKTIVITI

S2 Berapakah bacaan nilai minimum bagi pengujian

penebatan litar pendawaian?

a. 0.1 M Ω

b. 0.3 M Ω

c. 0.5 M Ω

d. 1.0 M Ω

A

B

C

D

http://www.google.com.my/imgres?imgurl=http://www.bcps.org/offices/lis/models/savebay/images/thinking%20cartoon.jpg&imgrefurl=http://www.bcps.org/offices/lis/models/savebay/index.html&usg=__7SzVOxLA3D1scbW3o4jpPtS6ygE=&h=533&w=720&sz=161&hl=en&start=9&itbs=1&tbnid=88NIj2wPAjLUcM:&tbnh=104&tbnw=140&prev=/images?q=cartoon+thinking+image&hl=en&sa=G&gbv=2&tbs=isch:1

AKTIVITI

S3

Berapakah bacaan nilai pengujian penebatan bagi

alat-alat elektrik ?

a. 0.1 M Ω

b. 0.3 M Ω

c. 0.5 M Ω

d. 1.0 M Ω

A

B

C

D

http://www.google.com.my/imgres?imgurl=http://comps.fotosearch.com/comp/IMZ/IMZ004/cartoon-drawing-man_~pgi0425.jpg&imgrefurl=http://www.fotosearch.com/IMZ004/pgi0425/&usg=__Clpg8t3z6cuDIN85rV1syqrVok4=&h=311&w=300&sz=24&hl=en&start=3&itbs=1&tbnid=6QHmYXabnUrlsM:&tbnh=117&tbnw=113&prev=/images?q=cartoon+thinking+image&hl=en&sa=G&gbv=2&tbs=isch:1

Mari kita recap ape yang telah di pelajari

http://www.google.com.my/imgres?imgurl=http://www.deviantart.com/download/130331568/Cute_Icon_by_casco12.png&imgrefurl=http://casco12.deviantart.com/art/Cute-Icon-130331568&usg=__AKXYJOfzgVQ4rrrZ5nY1iPKtRPM=&h=783&w=847&sz=132&hl=en&start=8&itbs=1&tbnid=3zqRGtKYgVsc4M:&tbnh=134&tbnw=145&prev=/images?q=cute+icon&hl=en&gbv=2&tbs=isch:1
http://www.google.com.my/imgres?imgurl=http://www.istockphoto.com/file_thumbview_approve/9986752/2/istockphoto_9986752-cute-icon-set-emoticons-dear-family-members-love.jpg&imgrefurl=http://www.istockphoto.com/stock-illustration-9986752-cute-icon-set-emoticons-dear-family-members-love.php&usg=__zJj7MjatYrf07333ckR6dJIzkog=&h=380&w=380&sz=57&hl=en&start=14&itbs=1&tbnid=svMcVfq-_aOouM:&tbnh=123&tbnw=123&prev=/images?q=cute+icon&hl=en&gbv=2&tbs=isch:1

Tujuan ujian penebatan

Langkah ujian penebatan

Nilai rintangan

Alat yang digunakan

God job !!

http://www.google.com.my/imgres?imgurl=http://www.deviantart.com/download/130331568/Cute_Icon_by_casco12.png&imgrefurl=http://casco12.deviantart.com/art/Cute-Icon-130331568&usg=__AKXYJOfzgVQ4rrrZ5nY1iPKtRPM=&h=783&w=847&sz=132&hl=en&start=8&itbs=1&tbnid=3zqRGtKYgVsc4M:&tbnh=134&tbnw=145&prev=/images?q=cute+icon&hl=en&gbv=2&tbs=isch:1
http://www.google.com.my/imgres?imgurl=http://www.istockphoto.com/file_thumbview_approve/9986752/2/istockphoto_9986752-cute-icon-set-emoticons-dear-family-members-love.jpg&imgrefurl=http://www.istockphoto.com/stock-illustration-9986752-cute-icon-set-emoticons-dear-family-members-love.php&usg=__zJj7MjatYrf07333ckR6dJIzkog=&h=380&w=380&sz=57&hl=en&start=14&itbs=1&tbnid=svMcVfq-_aOouM:&tbnh=123&tbnw=123&prev=/images?q=cute+icon&hl=en&gbv=2&tbs=isch:1

Mari kita lihat satu video berkaitan dengan

pelajaran kita hari ini

VIDEO

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http://www.google.com.my/imgres?imgurl=http://www.istockphoto.com/file_thumbview_approve/9986752/2/istockphoto_9986752-cute-icon-set-emoticons-dear-family-members-love.jpg&imgrefurl=http://www.istockphoto.com/stock-illustration-9986752-cute-icon-set-emoticons-dear-family-members-love.php&usg=__zJj7MjatYrf07333ckR6dJIzkog=&h=380&w=380&sz=57&hl=en&start=14&itbs=1&tbnid=svMcVfq-_aOouM:&tbnh=123&tbnw=123&prev=/images?q=cute+icon&hl=en&gbv=2&tbs=isch:1
http://www.youtube.com/watch?v=qGJd2rTuggI
http://www.youtube.com/watch?v=qGJd2rTuggI

FINISH

http://rds.yahoo.com/_ylt=A0S020ypUhpMVzcAw9eJzbkF;_ylu=X3oDMTBpdnJhMHUzBHBvcwMxBHNlYwNzcgR2dGlkAw--/SIG=1g7udmf0i/EXP=1276879913/**http:/images.search.yahoo.com/images/view?back=http://images.search.yahoo.com/search/images?p=THANK+YOU&ei=utf-8&w=350&h=260&imgurl=izuru136.cocolog-nifty.com/photos/uncategorized/thank_you.jpg&rurl=http://www.sodahead.com/question/576209/comment/20077627&size=19k&name=thank+you+jpg&p=THANK+YOU&oid=b82188fcae232d04&fr2=&no=1&tt=8823316&sigr=11ogi4g3m&sigi=11tt7cduv&sigb=121lmra91

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