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Electrician combat series home improvement electrician skills quick and practical skills

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Electrician practical combat series home improvement electrician skills crash and practical skillsPublished time: 2017
Introduction This book describes the basic knowledge and operation skills that home improvement electricians should master in their daily work. The specific contents include basic knowledge of home improvement electricians, wiring connection and insulation treatment, indoor power distribution line construction methods, installation of indoor power distribution devices, selection and installation of electrical lighting devices, cable TV, home theater, telephone and broadband network installation, The installation of common electrical appliances, the reading of architectural electrical engineering drawings, the design and construction of old house circuit reconstruction, and the safe use of electricity. This book is suitable for self-study of home improvement electricians with education level above junior high school. It can also be used as a reference for electrical technicians. It can also be used as a teaching reference book for vocational colleges and various short-term training courses.
Chapter 1 Basic knowledge of home improvement electrician
1.1 Basic knowledge of house building 1
1.1.1 Components of a building 1
1.1.2 Common Terms and Terms in Building and Installation Engineering 1
1.2 Basic knowledge of decoration engineering 3
1.2.1 Precautions for the construction of decoration works 3
1.2.2 Precautions for Safe Use of Electricity in Home Improvement 4
1.2.3 Fire safety precautions for home improvement 4
1.3 Common tools for home improvement electricians 5
1.3.1 Electric pen 5
1.3.2 Screwdriver 6
1.3.3 Wire Pliers 7
1.3.4 Needle-nose pliers 9
1.3.5 Electrician's Knife 10
1.3.6 Adjustable wrench 11
1.3.7 Hammer 12
1.3.8 Bitch 14
1.4 Power tools commonly used by home improvement electricians 15
1.4.1 Electric drill 15
1.4.2 Impact Electric Drill 17
1.4.3 Electric Hammer 19
1.4.4 Electric Jig Saw 20
1.5 Commonly Used Instruments for Home Improvement 22
1.5.1 Analog Multimeter 22
1.5.2 Digital Multimeter 25
1.5.3 Clamp Ammeter 30
1.5.4 Insulation resistance meter 32
Chapter 2 Wire Connection and Insulation
2.1 Home improvement commonly used electrical materials 39
2.1.1 Commonly used wires 39
2.1.2 Commonly used cables 41
2.1.3 Common insulation materials 43
2.2 Basic requirements for wire joints 44
2.3 Cutting of Wire Insulation 44
2.3.1 Common methods for cutting wire insulation 44
2.3.2 Cutting of the insulation of the wire ends 45
2.3.3 Cutting of insulation layer of plastic sheathed wire 46
2.4 Connection of Leads to Leads 47
2.4.1 Direct connection of copper conductors 47
2.4.2 Branch connection of copper conductor 49
2.4.3 Crimping of aluminum conductors 51
2.4.4 Connection of single-core insulated conductor in junction box 52
2.4.5 Connection of Multi-core Insulated Conductor in Junction Box
2.5 Connection of Multi-strand Wires and Terminal Blocks 54
2.5.1 Connection of multi-strand copper conductors and terminals 54
2.5.2 Connection of multi-strand aluminum conductors and terminals 54
2.6 Connection of Conductors to Terminal Blocks 55
2.6.1 Connection of conductors to flat-type terminal blocks 55
2.6.2 Connection of Conductors to Pinhole Terminal Blocks 55
2.6.3 Connection of Conductors to Tile Terminals 56
2.7 Insulation treatment after wire connection 57
2.7.1 Wrapping after the wires are connected linearly 57
2.7.2 Wrapping of wire branches after connection 57
2.7.3 Heat-shrinkable tube method 58
2.7.4 Method with Crimping Cap 59
Chapter 3 Indoor Power Distribution Lines
3.1 Basic knowledge of indoor wiring 60
3.1.1 Types and applicable occasions of indoor distribution lines 60
3.1.2 Technical requirements that indoor distribution lines should meet 60
3.1.3 Construction steps for indoor wiring 62
3.2 Plastic Sheathed Wire Wiring 63
3.2.1 Preparations before construction 63
3.2.2 Laying of plastic sheathed wires 64
3.2.3 Wiring method and precautions of plastic sheathed wire 66
3.3 Wireway wiring 67
3.3.1 Types and characteristics of trunking 67
3.3.2 Method Steps for Plastic Wireway Wiring 68
3.4 Conduit Wiring 70
3.4.1 Types and Applications of Conduit Wiring 70
3.4.2 Technical Requirements for PVC Wiring Conduit 71
3.4.3 Selection of PVC electrical conduit and accessories 72
3.4.4 Opening the Wire Slots 73
3.4.5 Processing and Connection of PVC Wire Conduit 75
3.4.6 Concealed Installation of Hard Plastic Wire Conduit 77
3.4.7 Open Laying of Hard Plastic Wire Conduit 78
3.4.8 Threading the conduit 79
Chapter 4 Installation of Indoor Power Distribution Units
4.1 Selection and Installation of Common Low-Voltage Electrical Appliances 81
4.1.1 Open load switch 81
4.1.2 Plug-in fuses 83
4.1.3 Low-voltage circuit breakers 85
4.1.4 Earth leakage protector 89
4.1.5 Low-voltage distribution box 93
4.2 Selection and Installation of Electric Energy Meters
4.2.1 Application and Classification of Electric Energy Meters
4.2.2 Mechanical Energy Meter 98
4.2.3 Electronic Energy Meter 100
4.2.4 Selection of electric energy meter
4.2.5 Wiring the Energy Meter 103
4.2.6 Installation and use of electric energy meters 105
4.3 Selection and Installation of Switches
4.3.1 Types and Selection of Switches
4.3.2 General requirements and installation positions of switch installation 108
4.3.3 Installation of Pull Switch 110
4.3.4 Installation of the toggle switch 111
4.3.5 Installation of Rocker Switch
4.3.6 Installation of damp-proof and splash-proof switch 113
4.3.7 Installation of touch delay and sound and light control delay switch 113
4.4 Selection and Installation of Sockets 115
4.4.1 Type of socket 115
4.4.2 Choice of Socket 116
4.4.3 Setting the socket position 117
4.4.4 Technical requirements to be met for mounting sockets 118
4.4.5 Socket Installation and Wiring 118
Chapter 5 Installation of Electrical Lighting
5.1 Overview of Electrical Lighting 120
5.1.1 Classification of electrical lighting 120
5.1.2 Requirements on the quality of electrical lighting 121
5.1.3 Operating conditions for lighting fixture installation 122
5.2 Installation and Use of Electrical Lighting 122
5.2.1 Incandescent lamp 122
5.2.2 Fluorescent lamps 126
5.2.3 LED lights 130
5.3 Types and Selection of Lighting 134
5.3.1 Types of lighting fixtures 134
5.3.2 Selection of common lighting fixtures 136
5.4 Installation of Lighting Fixtures 138
5.4.1 Basic requirements to be met when installing lighting fixtures 138
5.4.2 Arrangement of lighting fixtures 139
5.4.3 Installation of chandelier 140
5.4.4 Installation of ceiling light 143
5.4.5 Installation of recessed lighting 144
5.4.6 Installation of wall lights 144
5.4.7 Installation of Downlight 145
Chapter 6 Home Improvement Weak Current Engineering Installation Technology
6.1 Basic knowledge of weak current wiring 147
6.1.1 Characteristics of weak current 147
6.1.2 Classification of Weak Current System Engineering
6.1.3 Composition of home integrated wiring system 148
6.1.4 General rules for weak current wiring 149
6.1.5 Method steps for weak current wiring construction 149
6.1.6 Precautions for weak current wiring construction 150
6.2 Common Wires for Weak Current Engineering 151
6.2.1 Coaxial cable 151
6.2.2 Network cable 152
6.2.3 Telephone line 154
6.2.4 Audio cable 154
6.2.5 Video Cable 156
6.3 Home Theater Installation 158
6.3.1 AV Power Amplifier 158
6.3.2 Speaker 159
6.3.3 Display equipment 160
6.3.4 Home theater indoor wiring 161
6.4 Telephone and Broadband Network Installation
6.4.1 Family Information Box 162
6.4.2 ADSL Broadband Access 163
6.4.3 Installation of IPTV STB 164
6.4.4 Telephone distribution box and user outlet box 165
6.4.5 Laying out telephone lines 165
6.4.6 Telephone socket and telephone installation 167
6.5 Cable TV Installation 168
6.5.1 Features of a Cable TV System 168
6.5.2 The composition of a cable television system
6.5.3 Main Equipment and Equipment Used in Cable TV System 170
6.5.4 General requirements for cable TV system installation 173
6.5.5 Laying of Cables 174
6.5.6 Installation of distributors and branchers 174
6.5.7 Installation of User Box 175
6.5.8 Connection of coaxial cable to user box 176
Chapter 7 Installation of Common Electrical Appliances
7.1 Installation of electric water heaters 177
7.1.1 Types and characteristics of electric water heaters 177
7.1.2 Selection of electric water heater 178
7.1.3 Installation position of electric water heater 179
7.1.4 Basic requirements for installing electric water heaters 180
7.1.5 Installation of water storage electric water heater 180
7.1.6 Installation of instant electric water heaters 182
7.1.7 Precautions for using electric water heater 183
7.2 Installation of electric fans 183
7.2.1 Features and types of electric fans 183
7.2.2 Selection of electric fan 184
7.2.3 Technical requirements for installing ceiling fans 184
7.2.4 Installation of the hook 185
7.2.5 Installation of ceiling fan 187
7.2.6 Wall fan installation 188
7.2.7 Types and selection methods of ventilation fans 189
7.2.8 Installation of ventilation fans 190
7.2.9 Use and maintenance of ventilation fans 191
7.3 Installation of range hoods 192
7.3.1 Types of range hoods 192
7.3.2 Features and options of range hoods 192
7.3.3 Determination of the installation position of the range hood 193
7.3.4 Installation and Use of Range Hoods
7.4 Installation of Yuba 195
7.4.1 Types and selection methods of Yuba 195
7.4.2 Technical requirements for Yuba installation 197
7.4.3 Installation and use of Yuba 197
Chapter 8 Reading of Building Electrical Engineering Drawings
8.1 Common electrical graphic symbols and text symbols 200
8.1.1 Commonly used electrical graphic symbols 200
8.1.2 Electrical Engineering Drawings Commonly Used Lines 202
8.1.3 Basic text symbols commonly used in electrical equipment 203
8.1.4 Common auxiliary symbols for electrical equipment 204
8.1.5 Text Symbols for Marking Lines 204
8.1.6 Line laying method text symbol 204
8.1.7 Text Symbols for Line Laying Sites 205
8.2 Annotation method and examples of common power equipment on the floor plan 206
8.2.1 Annotation method of common power equipment on the floor plan 206
8.2.2 Example of labeling of common power equipment on the floor plan 208
8.3 Overview of Building Electrical Engineering Drawings
8.3.1 Main features of building electrical engineering drawings 213
8.3.2 Drawing rules for building electrical engineering drawings 214
8.3.3 Reading of architectural electrical engineering drawings 214
8.4 Power and Lighting Electrical Engineering Diagram 216
8.4.1 Wiring mode of power distribution system 216
8.4.2 Wiring mode of lighting power distribution system 217
8.4.3 Wiring method of power supply lines for multi-storey civil buildings 219
8.4.4 Methods of drawing power and lighting electrical engineering drawings 219
8.4.5 Characteristics of Power and Lighting System Diagrams
8.4.6 How to read power and lighting electrical engineering drawings 222
8.4.7 Power and lighting power supply system of an experimental building Figure 223
8.4.8 Schematic, wiring and floor plan of a certain room lighting 225
8.4.9 Electrical Lighting Plan of a Building 227
8.5 Electrical diagram of building fire safety system 228
8.5.1 Overview of fire safety systems 228
8.5.2 Characteristics of electrical diagrams of fire safety systems 229
8.5.3 Reading of electrical diagrams of fire safety systems 230
8.5.4 Electrical diagram of a building's fire safety system 230
8.6 Electrical diagram of the security system 232
8.6.1 Overview of security systems
8.6.2 Characteristics of the electrical diagram of the burglar alarm system 232
8.6.3 Reading of electrical diagrams of anti-theft alarm system 233
8.6.4 Figure 233
8.6.5 Types of intercom automatic door locks 234
8.6.6 Electrical diagram of invisible intercom anti-theft door lock device in a building 234
8.6.7 Video Intercom System Diagram of a High-rise Residential Building 236
8.7 Cable TV system diagram 237
8.7.1 Composition of a Cable TV System
8.7.2 Reading of Cable TV System Diagram 239
8.7.3 Figure 240 of a residential building cable TV system
8.8 Communication and broadcasting system diagram 240
8.8.1 Reading of communication and broadcasting system diagrams 240
8.8.2 Composition of telephone communication systems 240
8.8.3 Telephone engineering drawing of a residential building 241
8.8.4 Telephone plan of an office building 243
8.8.5 Composition of sound reinforcement systems 243
8.8.6 Common Public Broadcasting System Figure 245
8.9 Comprehensive wiring engineering diagram 245
8.9.1 Composition of integrated wiring system 245
8.9.2 Comprehensive wiring engineering system diagram 247
8.9.3 General wiring plan of a house 249
Chapter 9 Circuit Reformation of Old Houses
9.1 Overview of Circuit Reconstruction in Old Houses 250
9.1.1 The Necessity of Circuit Reform in Old Houses
9.1.2 Basic Principles of Circuit Reconstruction in Old Houses 251
9.2 Design of Old House Circuit Transformation 252
9.2.1 Preparations before circuit reconstruction design 252
9.2.2 Design Scheme for Circuit Reconstruction of Old House 252
9.3 Construction of old house circuit reconstruction 256
9.3.1 Process flow of circuit renovation of old house 256
9.3.2 Key points for construction operation of old house circuit reconstruction 257
9.3.3 Precautions for Circuit Reconstruction of Old Houses 257
Chapter 10 Safe Use of Electricity
10.1 Harm to Electricity by Current 259
10.1.1 Forms of current harm to human body 259
10.1.2 Risk analysis of electric shock in human body 260
10.2 Safe Current and Safe Voltage 261
10.2.1 Safe Current 261
10.2.2 Characteristics of human body resistance 261
10.2.3 Safety voltage 262
10.2.4 Precautions for using safe voltage 263
10.3 General Knowledge of Safe Electricity 263
10.3.1 Precautions for using electricity 263
10.3.2 Hazards of short circuits 263
10.3.3 Reasons for breakdown of insulating materials 264
10.3.4 Measures to prevent damage to insulating materials 264
10.4 Types of Electric Shock and Preventive Measures 264
10.4.1 Single-phase electric shock 264
10.4.2 Two-phase electric shock 265
10.4.3 Step voltage shock 265
10.4.4 Contact voltage shock 266
10.4.5 Measures to prevent electric shock 266
10.5 Electric shock first aid 267
10.5.1 Methods of Quickly Disconnecting Electric Shockers 267
10.5.2 Rescue for severe electric shock 267
10.6 Causes of Electrical Fires and Explosions 269
10.6.1 Characteristics of fires and explosions 269
10.6.2 Causes of Electrical Fires and Explosions 269
10.7 Preventive measures against electrical fires 270
10.7.1 It is not advisable to use aluminum wires for electrical wiring 270
10.7.2 Measures to prevent fire caused by short circuit and overload
10.7.3 Measures to prevent fire caused by low-voltage switch 271
10.7.4 Measures to prevent fire caused by power switch and socket 271
10.7.5 Measures to prevent fire caused by electric motors 271
10.7.6 Measures to prevent fire caused by transformers 273
10.7.7 Measures to Prevent Electrical Fires During Thunderstorm Season 274
10.8 Treatment Methods and Fire Precautions in the event of an Electrical Fire 275
10.8.1 Treatment methods in the event of an electrical fire 275
10.8.2 Fire fighting methods and precautions 275
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电工实战丛书家装电工技能速成与实战技巧 The electrician actual combat series home improvement electrician skills quick and practical skills

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