Electricity + Control April 2016

CONTENTS

4

8

16

24

Control systems + automation 4 Transparent energy data saves money from the building to the machine Dipl. Ing. Javier Manchado, Beckhoff 7 Steam to digital... the industrial revolution continues An Omron perspective 8 Smart City fundamentals Tapleigh Niethamer, Schneider Electric 10 Round UP

Electrical protection + safety 16

Corrosion of earthing and lightning protection systems Trevor Manas, Pontins

20

Round UP

Flow measurement 24

Water is our life Hennie Pretorius, Endress + Hauser

26 28

Pneumatic energy saving solutions Riaan van Eck, SMC Pneumatics

Round UP

Transformers + substations 32

Checking ground electrode impedance for commercial, industrial and residential buildings: Part 1 Technical Information supplied by John Wilson of Comtest for the Fluke Corporation

36

Round UP

Energy + enviroFiciency: Focus on lighting 42 Smart lighting and beyond: Smart urban networks in the Internet of Things Gianni Minetti, Paradox Engineering 46 Solar roads find many uses Dr Peter Harrop, IDTechEx 48 Round UP

FEATURES: • Control systems+ automation • Electrical protection+ safety • Flowmeasurement • Transformers+ substations • Energy+ enviroFiciency: Focus on lighting

Regulars

Cover

1 Comment 27 Cover article 48 Light+Current 49 Bizz Buzz 50 A sense of Africa 51 Social engineers 52 Clipboard

VEGAPULS 64, the first radar level sensor for liquids on the market that measures with a frequency of 80 GHz, will be launched by VEGA in May 2016. Read more on page 27.

Visit our innovative online technical resource for the engineering industry. www.eandcspoton.co.za

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