Electricity + Control January 2017

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Regulars
Control system + automation
4 The Elephant in the Industrial Control Room Katherine Brocklehurst, Belden
6 Round UP
Drives, motors + switchgear
10 CompleteTrolley Assist Solution Karl van Rensburg, Siemens
12 Points to Consider to Ensure VSD Installations meet IEEE 519 GlenWard, ZESTWEG Group
15 Round UP
Earthing + lightning protection
20 Surge and Fire Protection: Arresters with SCI technology for dc Circuits Kirk Risch, DEHN Africa
22 Lightning Protection for Rooftop Plants Trevor Manas, Pontins
26 Safe Energy Control Simplifies Surge Protection Dipl.-Ing (FH) Florian Lenzmeier, Phoenix Contact
28 Round UP
Pressure + level measurement
30 Insurance Against Contamination Joachim Zipp, WIKA
32 Hydrocarbon Dew Point – Critical Considerations for Natural GasTurbine Installations: Part 2 Jack Herring, Michell Instruments Inc
35 Round UP
Standby + back-up
38 Reducing Energy Consumption in Big Business and Industry Heather McEwan, Rhino Lighting
40 Round UP
With Beckhoff’s new EtherCAT
measurement technology mod-
ules, high-end measuring de-
vices and traditional automation
technology can be combined into
one universal system. Read more
on page 9.
FEATURES:
• Control systems+ automation
• Drives,motors+ switchgear
• Earthing+ lightning protection
• Pressure+ levelmeasurement
• Standby+ back-up
E+C JAN 2017 cover.indd 1 2016/12/07 10:43:01AM
Cover
CONTENTS
1 Comment
9 Cover story
41 Light+Current
41 Bizz Buzz
43 Social Engineers
44 Clipboard
Visit our innovative
online technical
resource for the
engineering industry.
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www.electricityandcontrolmagazine.co.za
Electricity+Control January ‘17 2