Electrical Installation Calculations: Advanced, For Technical Certificate and NVQ Level 3 7th Edition

Description

Designed to provide a step-by-step guide to successful application of the electrical installation calculations required in day-to-day electrical engineering practice, the Electrical Installation Calculations series has proved an invaluable reference for over forty years, for both apprentices and professional electrical installation engineers alike.Now in its seventh edition, Volume 2 has been fully updated in line with the 17th Edition IEE Wiring Regulations (BS 7671:2008) and references the material covered to the Wiring Regs throughout. The content meets the requirements of the 2330 Level 3 Certificate in Electrotechnical Technology from City & Guilds and will also prove a vital purchase for those undertaking Level 3 NVQs in Electrotechnical Services. Essential calculations which may not necessarily feature as part of the requirements of the syllabus are retained for reference by professional electrical installation engineers based in industry, or for those students wishing to progress to higher levels of study.The book's structure and new design make finding the required calculation easy. Key terms are explained in a glossary section and worked examples and exercises are included throughout the text to maximise accessibility of the material for the reader. A complete question and answer section is included at the back of the book to enable readers to check their understanding of the calculations presented.Also available: Electrical Installation Calculations Volume 1, 8th edn, by Watkins & Kitcher- the basic calculations required for electrical installation work, and Level 2 study and apprenticeships.

CONTENTS:

Use of calculators. Simple transposition of formule. SI units. Conductor colour identification. Alternating current circuit calculations: Impedance. Inductive reactance. Capacitive reactance. Impedance in series circuits. Impedance and power triangles. AC waveform and phasor representation: Phasors. Parallel circuits involving resistance, inductance and capacitance. Power factor improvement. Three-phase circuit calculations: Star-connected motors. Delta-connected motors. Resistance and inductance in three-phase circuits. Three-phase circuits. Three-phase power. Voltage drop in three-phase circuits. Voltmeters and ammeters: changing the use and extending the range: Voltmeters. Ammeters. Alternating current motors. Application of diversity factors. Cable selection: Earthing conductor calculation. Voltage drop calculations. Earth leakage protection calculations. Lighting calculations: Units and quantities. Inverse square law. Cosine law. Mechanics: Moment of force. Torque. Power. Surface speed, pulley diameter and speed ratios. Miscellaneous examples: D.C. generators. D.C. motors. Alternators and synchronous motors. Induction motors. Insulation resistance. Formule. Glossary. Answers.