Buku Kontrol Refrigasi dan Tata Udara Kelas 11 SMK

Buku Kontrol Refrigasi dan Tata Udara Kelas 11 SMK


Kelas 11
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Penerbit Direktorat Pembinaan Sekolah Menengah Kejuruan
Tahun 2014
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Materi Kontrol Refrigasi dan Tata Udara

KATA PENGANTAR ................................ ................................ ................................ iii
DAFTAR ISI ................................ ................................ ................................ ............. iv
I. PENDAHULUAN ................................ ................................ ............................... 1
A. Deskripsi ................................ ................................ ................................ ......... 1
B. Kompete nsi Inti dan Kompetensi Dasar ................................ ............................... 2
C. Silabus ................................ ................................ ................................ ............ 4
D. Rencana Aktivitas Belajar ................................ ................................ ................ 16

II. PEMBELAJARAN ................................ ................................ ............................ 17
A. Kegiatan Belajar 1 ................................ ................................ .......................... 17
Menerap kan keselamatan kerja pada pekerjaan elektrikal. ................................ ........... 17
1. Pendahuluan ................................ ................................ ............................... 17
2. Sengatan Arus Listrik ................................ ................................ .................. 19
3. Tegangan Langkah ( Step Potential ) dan Tegangan Sentuh ............................... 24
4. Cidera Akibat Sengatan Arus Listrik ................................ ............................. 26
5. Tanda Bahaya & Alat Pelindung Diri ................................ ............................ 32
6. Pentanahan Listrik ................................ ................................ ....................... 35
7. Pengaman Listrik ................................ ................................ ........................ 40
8. Prosedur Lock Out ................................ ................................ ...................... 41
9. Petunjuk Keselamatam & P3K ................................ ................................ ...... 44
B. Kegiatan Belajar 2 ................................ ................................ .......................... 53

Menafsirkan Ga mbar Sistem Kelistrikan Sistem Refrigerasi Domestik ................ 53
1. Pendahuluan ................................ ................................ ............................... 53
2. Simbol Komponen Listrik ................................ ................................ ............ 54
3. Motor Listrik ................................ ................................ .............................. 55
4. Rele & Kontaktor ................................ ................................ ........................ 60
5. Starter Magnetik ................................ ................................ ......................... 68
6. Sakelar Otomatik ................................ ................................ ........................ 69
7. Piranti Pengaman ................................ ................................ ........................ 74
8. Diagram Skematik ................................ ................................ ....................... 76
9. Diagram Ladder ................................ ................................ .......................... 88
10. Diagram Pengawatan ................................ ................................ ............... 96

C. Kegiatan Belajar 3 ................................ ................................ ............................. 99
Memeriksa K omponen dan Sistem Distribusi Tenaga Listrik Tegangan Rendah ............ 99
1. Sistem Distribusi Tenaga Listrik ................................ ................................ ... 99
2. Panel Distribus i Tenaga Listrik ................................ ................................ ... 105
3. Sistem Pembumian Netral atau sistem TN ................................ .................... 108
4. Sistem Pembumian Pengaman atau sistem TT ................................ .............. 109

D. Kegiatan Belajar 4 ................................ ................................ ........................... 112
Memasang Instalasi Kotak Kontak ................................ ................................ ......... 112
1. Peraturan Umum ................................ ................................ ....................... 112
2. Kabel Listrik ................................ ................................ ............................ 112
3. Pipa Instalasi Listrik ................................ ................................ .................. 116
4. Perhitungan Ukuran Kabel & Piranti pengaman ................................ ............ 116
5. Pemasangan Instalasi Kotak Kontak Biasa (KKB) ................................ ......... 119

DAFTAR PUSTAKA ................................ ................................ .............................. 128