Electricity and Control March 2016

CONTENTS

10

25

30

42

Control systems + automation 4 Smart cities: Real-time infrastructure control systems Tim Sowell and Johanne Greenwood, Schneider Electric 10 Smart Identity System connects ERP and shop floor Shane Novacek, Beckhoff Automation 12 Round UP Hazardous areas + safety 20 Utilising hazard studies in plant safety Willie Coetzee, Actus Holdings, and Chris Potgieter, BFluor Chemicals 25 Understanding Lock Out/ Tag Out procedures Hayley Arnesen, North Safety Products 27 Round UP

Plant maintenance, test + measurement 28

Tips for mitigating harmful harmonics John Mitchell, CP Automation

30 Industry must maintain transformers Andre Man, WEG Transformers Africa (division of Zest WEG Manufacturing) 32 Round UP

Temperature measurement 36

Water vapour in factory air… costly maintenance Brian Abbott, SMC Pneumatics Evolution of temperature measurement Steve Edwards, R&C Instrumentation

38 39

Round UP

Energy + enviroFiciency: Focus on Drives + motors 42

Computer control of a small lathe: A mechatronics case study Glyn Craig, Techlyn

46

Round UP

FEATURES: • Control systems+ automation • Hazardous areas+ safety • Plantmaintenance, test+measurement • Temperaturemeasurement • Energy+ enviroFiciency: Focus onDrives,motors+ switchgear

Regulars

Cover

1 Comment by Ian Jandrell 17 Cover story 50 A sense of Africa 51 Light + Current 51 Bizz Buzz 54 Social Engineers 56 Clipboard

With safety at the heart, Schnei- der Electric has continued to in- novate with not only the introduc- tion of finger safe terminals, but influencing the safety standards for contactors too. Read more on page 17.

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

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