Chapter
1.2.4 Development From Live Line Working to Non‐Service Interruption Working
1.3 Power Supply Reliability and Power Outage Losses
1.3.1 Reliability Indexes
1.3.2 Analysis of Indexes of Power Supply Reliability
1.3.3 Power Outage Losses
1.4 Analysis of Effect of Working Techniques
Chapter 2 Distribution Grid and Its Working Techniques
2.1 Basic Concept of Distribution Grid
2.2 Basic Configuration of Distribution Grid
2.2.1 Distribution Network Configuration
2.2.2 Composition of Overhead Distribution Lines
2.2.3 Composition of Distribution Cable Line
2.2.4 Other Common Distribution Equipment
2.3 Technical Principles of Distribution Non‐Service Interruption Working
2.3.1 Earth Potential Working
2.3.2 Middle Potential Working
2.3.3 Equipotential Working
2.4 Types of Distribution Line Poles and Live Line Working
2.4.1 Classification of Pole Types
2.4.2 Conductor Spacing in Tower and Spacing Between Conductors and Surroundings
2.4.3 Types of Poles Suitable for Live Line Working
Chapter 3 Theoretical Basis of Working Techniques
3.1 Analysis of Influence of Electricity on Human Bodies
3.1.1 Influence Brought by Current on Human Bodies
3.1.2 Influence of Electric Field on Human Bodies
3.2 Overvoltage During Working
3.2.1 Switching Overvoltage
3.2.2 Temporary Overvoltage
3.3 Dielectric Properties
3.3.1 Conductance and Insulation Resistance of Dielectric
3.3.2 Breakdown Strength and Discharge Characteristic of Dielectric
3.4 Insulation Coordination and Safety Spacing
3.4.1 Insulation Coordination
Chapter 4 Common Working Tools and Usages
4.1.1 Common Insulating Materials
4.1.3 Insulating Ropes and Cords
4.2 Protective Appliances
4.2.1 Insulating Shielding Appliances
4.2.2 Insulating Blanket (Mat)
4.2.3 Insulating Protective Appliances
4.3.2 Insulating Tape Lever Hoist
4.3.3 Instruments and Meters
4.4 The Making of Working Tools
4.4.2 Design and Processing
4.4.3 Simulation Drill and Practical Application
4.5 The Usage and Management of Working Tools
4.5.1 Storage and Maintenance of Live Line Working Tools
4.5.2 Warehouse of Live Line Working Tools and Management
4.5.3 Modern Identifications and Intelligent Management of Tools
Chapter 5 Test Techniques for Working Tools
5.1.1 Classification of Tests
5.1.3 Technical Standards of Tests
5.2 Test of Common Insulating Tools
5.2.1 Test of Insulating Pole
5.2.2 Test of Insulating Tackle
5.2.3 Test of Insulating Hard Ladder
5.2.4 Test of Insulating Rope
5.2.5 Test of Insulating Hand Tool
5.2.6 Test of Insulating Shielding Cover
5.2.7 Test of Insulating Blanket (Mat)
5.2.8 Test of Insulating Clothing (Shawls)
5.2.9 Test of Insulating Gloves
5.2.10 Test of Insulating Shoes (Boots)
5.2.11 Test of Insulating Helmet
Chapter 6 Application of Aerial Device with Insulating Boom and Insulating Platform
6.1 Aerial Device with Insulating Boom
6.1.1 Introduction to Aerial Device with Insulating Boom
6.1.2 Use and Operation of Aerial Device with Insulating Boom
6.1.3 Maintenance and Service of Aerial Device with Insulating Boom
6.1.4 Test of Aerial Device with Insulating Boom
6.2.1 Introduction to Insulating Platform
6.2.2 Use and Maintenance of Insulating Platform
6.2.3 Test of Insulating Platform
6.3.1 Introduction to Operational Robots
6.3.3 Test of Insulation Performance
Chapter 7 Medium-Voltage Distribution Live Line Working
7.1 Basic Working Procedures and Methods
7.1.1 Meteorological Conditions for Working
7.1.2 Basic Working Procedures
7.1.3 Working Instructions
7.1.4 Basic Working Methods
7.2 Working Techniques for Simple and Regular Works
7.2.1 Repairing Conductors
7.2.2 Live Line Connection (Removal) of No-Load By-Pass Jumpers
7.2.3 Replacing Tension Insulators
7.2.4 Replacing Cross Arms and Insulators in a Suspension Pole
7.2.5 Replacing Lightening Arresters
7.3 Working Techniques for Complex and Comprehensive Works
7.3.1 Live Line Installation of a Pole
7.3.2 Replacing a Suspension Pole
7.3.3 Changing a Suspension Pole to a Tension Pole
7.3.4 On-Load Replacement of Pole-Mounted Switches
7.3.5 On-Load Installation of Pole-Mounted Breakers
Chapter 8 Low-Voltage Distribution Live Line Working
8.1 Key Working Techniques
8.1.1 Safety Measures for Working
8.1.2 Technical Measures for Working
8.2 Working Items and Methods
8.2.1 Live Line Connection of a Low-Voltage Service Conductor
8.2.2 Connection of Power Source for a Low-Voltage Distribution Box
8.2.3 Live Line Treatment of a Broken Service Conductor
8.2.4 Live Line Replacement of a Three-Phase Four-Wire Watt-Hour Meter
8.2.5 Live Line Isolation of a Failed Watt-Hour Meter
Chapter 9 Bypass Working and Mobile Power Working
9.1 Basic Methods of Bypass Working
9.1.1 Bypass Cable Method
9.1.2 Bypass Overhead Line Method
9.1.3 Safety Measures for Bypass Working
9.2 Mobile Generation Working Techniques
9.2.1 Operating Principle and Wiring
9.2.2 Operations of Mobile Generator Vehicle
9.2.3 Method of Power Supply by Mobile Generator Vehicle
9.3 EPS Working Techniques
9.3.1 Operating Principle of EPS
9.3.2 Operations of EPS Vehicle
9.3.3 Operating Essentials of Power Supply by EPS Vehicle
9.3.4 Maintenance of EPS Vehicle
9.4 Mobile Prefabricated Transformer Working Techniques
9.4.1 Power Supply Principle of Mobile Prefabricated Transformer
9.4.2 Changing Pole-Mounted Transformer
9.5 Cable Non-Service Interruption Working Techniques
9.5.1 Overview of Power Supply Using Bypass Cable
9.5.2 Equipment Commonly Used for Working
9.5.3 Main Working Techniques
Chapter 10 Working Management and Emergency Measures
10.1.1 Organization and Management
10.1.3 Relevant Regulations and Technical Standards
10.1.4 Working Management Documents
10.1.5 Management of New Working Subjects
10.1.6 Management of New R&&D Projects
10.2 Training and Management of Workers
10.2.1 Induction Training of New Workers
10.2.2 Daily Training of Workers
10.2.3 Assessment and Management of Workers
10.3 Emergency Measures for Working
10.3.1 Emergency Measures for Abrupt Change of Weather
10.3.2 Emergency Measures for Failure of Major Working Tools
10.3.3 Emergency Measures for Personal Injuries
10.3.4 Training and Drill
Annex: Distribution Non-service Interruption Working Instructions (Template)
A2 PreparationsBefore Working
A2.2 Personnel Requirements
A2.5 Analysis of Dangerous Points
A3.1 Commencement of Work
A3.2 Work Contents and Standards
A5 Evaluationof Execution of the Working Instructions
Appendix 1 General Guidelines for Safety of Live Line Working
A1-2 TechnicalSafety Measures
A1-3 Live Disconnection and Connection of Leads
A1-4 LiveShort-circuiting of Equipment
A1-6 LiveInstallation or Removal of Poles
A1-7 Workingwith Aerial Device with Insulating Boom
A1-8 Storage,Use and Test of Live Line Working Tools
Appendix 2 Technical Guidelines for Common Working Tools
A-2.1 Termsand Definitions
A-2.2 Material Requirements for Insulating Tools
A-2.2.1 Electrical Performance Index Requirements
A-2.3 MechanicalPerformance IndexRequirements
A-2.3.1 Insulating Boards Used for People-Carrying Equipment
A-2.3.2 Insulating Tubes Used for People-Carrying Equipment
A-2.3.3 Insulating Rods Used for People-Carrying Equipment
A-2.3.4 Tensile Strengths of Insulating Ropes
A-2.3.5 Polymer Plastic Films Used for Insulating Protective Appliances
A-2.4 OtherIndex Requirements
A-2.4.3 Martin Heat Resistance
A-2.4.4 Initial Elongation of Insulating Ropes
A-2.5 Main Technical Requirements for Insulating Tools
A-2.5.1 Electrical Properties of Insulating Tools
A-2.5.2 Structural Requirements for Insulating Tools
A-2.5.3 Package (Tool Bag)
A-2.6 Rated Load Requirements for Bearing Tools
A-2.6.1 Rated Load (Ps) of Tensioner
A-2.6.2 Rated Load (Qrs) of Person-Carrying Equipments
A-2.6.3 Rated Loads of Other Tools
A-2.7 Main Technical Requirements for the Bypass Switch
A-2.7.1 Electrical Properties
A-2.7.2 Mechanical Properties
A-2.8 MainTechnical Requirements for Flexible Power Cable and its Connector
A-2.8.1 Electrical Properties
A-2.8.2 Mechanical Properties
Live-Line Operation and Maintenance of Power Distribution Networks
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