18th Ed. IET Wiring Regulations Wiring Systems and Fault Finding for Installation Electricians 7th Edition 2019 (PDF)

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About

Pages: 121 pages
Size: 50MB
Publisher: Routledge
Author (s): Brian Scaddan
Language: English
Date of Publication:  7th Edition 2019

Content

Preface
CHAPTER 1 Diagrams
BS EN 60617 Symbols
Diagrams
Circuit Convention
Constructing and Interpreting Circuit Diagrams
Heating and Ventilation System
Relay Logic
Programmable Logic Controllers
Drawing Exercise
CHAPTER 2 Wiring Systems
Radial Systems
Ring Circuits
Distribution Systems
Emergency Lighting Systems
Security and Fire Alarm Systems
Call Systems
Motor Starter circuits
Central Heating Systems
Extra Low-voltage Lighting
Domestic Telephone Systems
CHAPTER 3 Testing and Test instruments
Measurement of Electrical Quantities
Selection of Test lnstruments
Approved Test Lamps and Voltage Indicators
Accidental RCD Operation
Calibration Zeroing and Care of Instruments
Continuity of Protective Conductors
Continuity of Ring Final Circuit Conductors
insulation Resistance
PolEirity
Earth Fault Loop Impedance
Earth Electrode Resistance
Functional Testing
Prospective Fault Current
CHAPTER 4 Fault Finding
Signs and Symptoms
Ring and Radial Socket Outlet Circuits
Radial Circuits Feeding Fixed Equipment
Cable Fault Location
Emergency Lighting
Security and Fire Alarm Systems
Call Systems
Central Heating Systems
Motor Starter Circuits
Solar PV Systems
Conclusion and a Cautionary Tale
APPENDIX 1 Shock Risk and Safe isolation
Electric Shock
Safe Isolation of Supplies
APPENDIX 2 Basic Electrical Theory
Electrical Quantities and Units
Power Current and Low Voltage
APPENDIX 3 Solutions
Quiz Controller (Chapter 1)
INDEX

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