Contents----------------------
1 - The IEE Regulations, BS 7671, and this Guide
      1.1 - The need for this Electricians Guide
      1.2 - The IEE Regulations
            1.2.1 International basis
            1.2.2 The Sixteenth Edition
            1.2.3 Plan of the Sixteenth Edition

2 - Installation requirements and characteristics
      2.1 - Introduction
      2.2 - Safety requirements
            2.2.1 Scope of the Regulations
            2.2.2 Legal status of the Regulations
            2.2.3 New inventions and methods
            2.2.4 Safety Requirements
            2.2.5 Supplies for safety services
      2.3 - Definitions
      2.4 - Assessment of general characteristics
            2.4.1 Introduction
            2.4.2 Purposes, supplies and structure
            2.4.3 External influences
            2.4.4 Compatibility
            2.4.5 Maintainability
      2.5 - Low voltage generating sets
      2.6 - Standards
      2.7 - Undervoltage

3 - Installation control and protection
      3.1 - Introduction
      3.2 - Switching
            3.2.1 Switch positions
            3.2.2 Emergency switching
            3.2.3 Switching for mechanical maintenance
            3.2.4 Functional switching
      3.3 - Isolation
            3.3.1 Isolator definition
            3.3.2 Isolator situation
            3.3.3 Isolator positions
            3.3.4 Semiconductor isolators
            3.3.5 Isolator identification
      3.4 - Electric shock protection
            3.4.1 The nature of electric shock
            3.4.2 Resistance of the shock path
            3.4.3 Contact with live conductors
            3.4.4 Protection from contact
            3.4.5 Direct contact protection
            3.4.6 Indirect contact protection
            3.4.7 Protection for users of equipment outdoors
      3.5 - High temperature protection
            3.5.1 Introduction
            3.5.2 Fire protection
            3.5.3 Protection from burns
      3.6 - Overcurrent protection
            3.6.1Introduction
            3.6.2 Overload
            3.6.3 Fuses
            3.6.4 Circuit breakers
            3.6.5 Protecting conductors
      3.7 - Protection from faults
            3.7.1 Introduction
            3.7.2 Prospective short-circuit (PSC)
            3.7.3 Operating time
            3.7.4 Conductors of reduced current-carrying capacity
            3.7.5 Back-up protection
            3.7.6 Insulation monitoring
      3.8 - Short circuit and overload protection
            3.8.1 Combined protection
            3.8.2 Current limited by supply characteristic
            3.8.3 Protection omitted
            3.8.4 Protection of conductors in parallel
            3.8.5 Absence of protection
            3.8.6 Discrimination

4 - Cables, conduits and trunking
      4.1- Introduction
            4.1.1Cable insulation materials
      4.2 - Cables
            4.2.1 Non-flexible low voltage cables
            4.2.2 Cables for overhead lines
            4.2.3 Flexible low voltage cables and cords
            4.2.4 Cables carrying alternating currents
            4.2.5 Corrosion
      4.3 - Cable choice
            4.3.1 Cable types
            4.3.2 Current carrying capacity of conductors
            4.3.3 Methods of cable installation
            4.3.4 Ambient temperature correction factors
            4.3.5 Cable grouping correction factors
            4.3.6 Thermal insulation correction factors
            4.3.7 When a number of correction factors applies
            4.3.8 Protection by semi-enclosed (rewirable) fuses
            4.3.9 Cable rating calculation
            4.3.10 Special formulas for grouping factor calculation
            4.3.11 Cable volt drop
            4.3.12 Harmonic currents and neutral conductors
            4.3.13 Low smoke-emitting cables
            4.3.14 The effects of animals, plants & insects
      4.4 - Cable supports, joints and terminations
         -- 4.4.1 Cable supports and protection
            4.4.2 Cable bends
            4.4.3 Joints and terminations
      4.5 - Cable Enclosures
            4.5.1 Plastic and metal conduits
            4.5.2 Ducting and trunking
            4.5.3 Cable capacity
      4.6 - Conductor and cable identification
            4.6.1 Conduits
            4.6.2 Identification of fixed wiring conductors
            4.6.3 Colours for flexible cables and cords

5 - Earthing
      5.1 - The earthing principle
            5.1.1 What is earthing
            5.1.2 The advantage of earthing
            5.1.3 The disadvantages of earthing
      5.2 - Earthing systems
            5.2.1 System classification
            5.2.2 TT Systems
            5.2.3 TN-S System
            5.2.4 TN-C-S system
            5.2.5 TN-C system
            5.2.6 IT System
      5.3 - Earth-fault loop impedance
            5.3.1 Principle
            5.3.2 The importance of loop impedance
            5.3.3 The resistance-impedance relationship
            5.3.4 Earth-fault loop impedance values
            5.3.5 Protective conductor impedance
            5.3.6 Maximum circuit conductor length
      5.4 - Protective conductors
            5.4.1 Earthing conductors
            5.4.2 Protective conductor types
            5.4.3 Bonding conductors
            5.4.4 Protective conductor cross-section assessment
            5.4.5 Protective conductor cross-section calculation
            5.4.6 Unearthed metalwork
      5.5 - Earth electrodes
            5.5.1 Why must we have earth electrodes
            5.5.2 Earth electrode types
      5.6 - Protective multiple earthing(PME)
            5.6.1 What is protective multiple earthing
            5.6.2 Increased fire risk
            5.6.3 Broken neutral conductor
            5.6.4 Special requirements PME-fed installations

           

5 - Earthing Cont'd
      5.7 - Earthed concentric wiring
            5.7.1 What is earthed concentric wiring
            5.7.2 Requirements for earthed concentric wiring
      5.8 - Other protection methods
            5.8.1 Class II equipment
            5.8.2 Non-conducting location
            5.8.3 Earth-free bonding
            5.8.4 Electrical separation
      5.9 - Residual current devices(RCDs)
            5.9.1 Why we need residual current devices
            5.9.2 Principle of residual current devices
            5.9.3 Regulations for residual current devices
            5.9.4 Fault-voltage operated circuit breakers
    5.10 - Combined functional and protective earthing

6 - Circuits
      6.1 - Basic requirements for circuits
      6.2 - Maximum demand and diversity
           -6.2.1 Maximum demand
            6.2.2 Diversity
            6.2.3 Applied diversity
      6.3 - BS1363 socket outlet circuits
            6.3.1 The fused plug
            6.3.2 The ring final circuit
            6.3.3 The radial circuit
      6.4 - Industrial socket outlet circuits
            6.4.1 Introduction
            6.4.2 BS 196 socket outlet circuits
            6.4.3 BS EN 60309-1 (BS 43453) socket outlet circuits
      6.5 - Other circuits
            6.5.1 Lighting circuits
            6.5.2 Cooker circuits
            6.5.3 Off-peak appliance circuits
      6.6 - Circuit segregation
            6.6.1 Segregating circuits
           -6.6.2 Electro-magnetic compatibility(EMC)
            6.6.3 Lift and hoist shaft circuits

7 - Special Installations
      7.1 - Introduction
      7.2 - Bath tubs and shower basins
            7.2.1 Introduction
            7.2.2 Bath and shower room requirements
      7.3 - Swimming pools
            7.3.1 Introduction
            7.3.2 Special requirements for swimming pools
      7.4 - Sauna rooms
            7.4.1 Introduction
            7.4.2 Special requirements for saunas
      7.5 - Installations on construction sites
            7.5.1 Introduction
            7.5.2 Special regulations for construction sites
      7.6 - Agricultural and horticultural installations
            7.6.1 Introduction
            7.6.2 Agricultural installations
            7.6.3 Electric fence controllers
            7.6.4 Horticultural installations
      7.7 - Restrictive conductive locations
            7.7.1 Introduction
            7.7.2 Special requirements
      7.8 - Earthing for combined functional and protective purposes
            7.8.1 Introduction
            7.8.2 Special regulations for equipment with high earth currents
      7.9 - Caravan, motor caravan and caravan park installations
            7.9.1 Introduction
            7.9.2 Caravan installations
            7.9.3 Caravan park installations
      7.10 - Highway power supplies and street furniture
            7.10.1 Introduction
            7.10.2 Highway and street furniture regulations
      7.11 - Heating appliances and installations
           -7.11.1 Introduction
            7.11.2 Electrode boilers and water heaters
            7.11.3 Instantaneous water heaters
            7.11.4 Surface, floor, soil and road warming installations
      7.12 - Discharge lighting
            7.12.1 Low voltage discharge lighting
            7.12.2 High voltage discharge lighting
      7.13 - Underground and overhead wiring
            7.13.1 Overhead wiring types
            7.13.2 Maximum span lengths and minimum heights
            7.13.3 Underground wiring
      7.14 - Outdoor installations and garden building
            7.14.1 Temporary garden buildings
            7.14.2 Garden installations
      7.15 - Installation of machines and transformers
            7.15.1 Rotating machines
            7.15.2 Transformers
      7.16 - Reduced voltage systems
            7.16.1 Types of reduced voltage
            7.16.2 Separated extra-low voltage(SELV)
            7.16.3 Functional extra-low voltage(FELV)
            7.16.4 Reduced voltage
      7.17 - Marinas
            7.17.1 Introduction
            7.17.2 The marina electrical installation
      7.18 - Medical locations
            7.18.1 Introduction
            7.18.2 Recommendations for medical locations
      7.19 - Exhibitions, shows and stands
            7.19.1 Introduction
            7.19.2 Recommendations for exhibitions, etc.

8 - Inspection and testing
      8.1 - Introduction
            8.1.1 The tester
            8.1.2 Why do we need inspection and testing
            8.1.3 Information needed by the tester
      8.2 - Inspection
            8.2.1 Notices and other identification
            8.2.2 Inspection
            8.2.3 Periodic Inspection
      8.3 - Testing sequence
            8.3.1 Why is correct sequence important
            8.3.2 Correct testing sequence
      8.4 - Continuity tests
            8.4.1 Protective conductor continuity
            8.4.2 Ring final circuit continuity
            8.4.3 Correct polarity
            8.4.4 Measurement of R1+R2
      8.5 - Insulation tests
            8.5.1 Testing insulation resistance
            8.5.2 Testing of non-conducting floors and walls
            8.5.3 Tests of barriers and enclosures
            8.5.4 Tests for electrical separation of circuits
      8.6 - Earth testing
            8.6.1 Testing earth electrodes
            8.6.2 Measuring earth-fault loop impedance and prospective short-circuit current
            8.6.3 Testing residual current devices(RCDs)
      8.7 - Test instrument requirements
            8.7.1 Basic requirements
            8.7.2 Accuracy and resolution
      8.8 - Supporting paperwork
            8.8.1 Why bother with paperwork
            8.8.2 Electrical installation certificate
            8.8.3 Installation alterations and additions
            8.8.4 Periodic inspection and testing
            8.8.5 Minor electrical installation works certificate
9 - Data Cabling and Networks
      9.1 - What is data cabling and why do we need it
      9.2 - What are digital systems
      9.3 - Copper or glass fibre
      9.4 - System design and categories
      9.5 - Installing data cabling
      9.6 - Useful information

 

Extracted from The Electricians Guide Fifth Edition
by John Whitfield
Published by EPA Press Click Here to order your Copy

Click here for list of abbreviations