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Issue 97                                                                                                              Jan 2016
anglo allied
In this issue...
- Radically rethinking South Africa's mining operations.
- Business: not all doom and gloom
- Artisan training a "gigantic" problem
- Section 12L tax allowance: why the delay?
- Evoking positive emotions through lighting design
- Visual improvement and energy savings in municipal high-mast lighting
- New approaches for maintenance grounding in MV switchgear
- Beating electrical oscillations
- Improving energy performance in plant and buildings: Part 1
- Key considerations for designing bearing systems with linear axes
- Lightning protecting for security, safety systems
- Differences in voltage testers
- ECA(SA) news
- Industry news
- Company, product, project & service news

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Clare van Zwieten Radically rethinking South Africa's mining operations
by Clare van Zwieten, EE Publishers

Depressed commodity prices, the continuing economic downturn and pervasive illegal mining activities have been hitting South Africa's mining sector hard... (more)
Business: not all doom and gloom
by Mark Botha, EE Publishers  
 
Vector speaks to SEW Eurodrive MD Raymond Obermeyer (pictured right) about industrial action, the falling rand, plummeting commodity prices and soaring interest rates, and their various effects on... (more)
Michael Straton
Artisan training a "gigantic" problem
Speech by Michael Straton, ECA(SA)   
 
The ECA(SA) is faced with a gigantic problem in the guise of artisan training. Well-trained artisans are the lifeblood of the contracting industry and their training is paramount... (more)
See at ECA 2015 Presidential Excellence Awards & Golf Day
 
The ECA(SA) recently hosted the 2015 ECA Presidential Awards banquet and National Golf Day in Gauteng in association with EE Publishers and Vector magazine. Click here to view the picture gallery for the awards ceremony and here for the pictures of the golf day.

 
EE winning letter
Section 12L tax allowance: why the delay?
by Karel Steyn, SAEE

The number of projects submitted to the South African National Energy Development Institute (SANEDI) committee responsible for evaluating projects submitted for the Section 12L tax allowance has increased exponentially... (more)
Evoking positive emotions through lighting design
Information from Brightgreen

How human nature influences our reaction to a new environment with respect to lighting. Research indicates a preference for directional or peripheral lighting as opposed to diffuse lighting, as it provides the observer with environmental cognition... (more)
Visual improvement and energy savings in municipal high-mast lighting
by Daniel Kasper, BEKA Schréder

Technological improvements have enabled LED floodlights to replace HID luminaires and to either achieve substantial energy savings or at least to match the power consumption of HID luminaires. High-mast lighting is found in almost all locations... (more)
New approaches for maintenance grounding in MV switchgear 
by Joe Richard and David Mabius, Schneider Electric 

Modern grounding switches allow personnel to perform maintenance grounding with switchgear completely enclosed. Maintenance grounding is a proven method for protecting electrical workers during medium-voltage switchgear maintenance... (more) 
Beating electrical oscillations 
Peter Al Hokayem, Silvia Mastellone, Tobias Geyer, Nikolaos Oikono-Mou and Christian Stulz, ABB
 
Controlling electrical oscillations through active damping methods in medium-voltage power converters traditionally used to connect to the grid electrical machines that drive mechanical loads. These are ubiquitous in applications such as pumps and fans... (more)
Improving energy performance in plant and buildings: Part 1
by Gary Williams, Carolinas Energy Associates
 
Energy conservation and efficiency are the most powerful tools in South Africa's transition to a clean energy future. Renewable energy is an important piece of our energy future, but the opportunities currently lie in energy conservation and efficiency... (more)
Key considerations for designing bearing systems with linear axes  
by Nigel Dawson, Festo

This article discusses alternative design arrangements for higher load applications and investigates design considerations observed during the development of a high load, twin rail system... (more) 
Lightning protecting for security, safety systems
Information from DEHN Africa
 
Be they fire protection, burglary protection or emergency and escape route lighting, electrical safety systems are only safe if they do not fail during thunderstorms. Human life is at risk when lightning strikes and surges destroy safety systems and nullify safety... (more) 
Differences in voltage testers 
Information from Fluke
 
Voltage testers are popular with electricians but they are not all the same. The differences show up in safety, reliability and convenience. By looking at he voltage testers on the market and by noting their differences, you would  see that they divide into two general categories... (more) 
ECA(SA) news
Industry news    
Company, product, project & service news