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incorporating The Electrical Contractor 
Issue No 60                                                                                               August 2012 
EE Publishers apps July 2012

Eskom
In this issue...
- African growth to boost industry
- Industrial energy efficiency improvement project in South Africa
- The Eskom IDM suite of solutions
- Vector experts Q&A
- Vector Inbox: our winning letter
- Small-scale renewable energy solutions
- Probation: what employers should know
- LEDs: exploring the "colour" of white light
- Using contrast and colour temperature to boost sales
- VSDs can control multiple motors
- The future of AC drives: smaller and smarter
- Buildings that change their behaviour
- Voltage power optimisation: efficiency, control over received power
- Old buildings can be energy efficient
- ECA News
- Industry news
- Company, product, project & service news
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Mark Botha
African growth to boost industry
by Mark Botha, editor


Africa is emerging from the world-wide recession as an attractive destination for international investment, partly due to economic and political reforms creating a more conducive business and investment climate... (more)

Industrial energy efficiency improvement project in South Africa
by Gerswynn McKuur, CSIR

A national project was introduced in 2010 to improve the capacity of South African industry to use energy resources more efficiently and productively. This article focuses on energy management and cost-effective systems optimisation techniques... (more)
The Eskom IDM suite of solutions 
by Morne Begemann, Eskom IDM and Barry Lipchin, EON Consulting

This article looks at the various rebated programmes and DSM funding models currently available under Eskom's Integrated Demand Management (IDM) division, and considers the performance of the interventions to date and possible future models... (more)
Experts Q&A  

Electrical installations, good practice, wiring, cabling, switchgear, power distribution, transformers, motors, capacitors, protection, safety, legislation, regulations, and more. Our experts answer your technical questions... (more)
Vector Inbox 
 
Our winning letter on Clause 5.6 of the Electrical Installation Regulations. If it was intended to ensure reticulation to a multi-user complex was designed correctly, then this could have been better achieved. The present provision is not going to work."... (more)
Small-scale renewable energy solutions
Information from Eskom


Small-scale renewable energy solutions, produced from low carbon  technologies and derived from naturally regenerative resources, are the latest addition to the list of energy efficient technologies funded through Eskom's Standard Offer Programme... (more)

Probation: what employers should know
by Shantonette Naidoo, ECA
 


Employers commonly engage employees for probationary periods, negotiated and stipulated in the contract of employment. After expiry of the probation period, the employer is entitled to decide whether to retain the services of the employee on a permanent basis... (more)

LEDs: exploring the "colour" of white light
by MS Rea and J Freysinnier, Lighting Research Centre

The colour of light sources is described in industry primarily in terms of two metrics, correlated colour temperature (CCT) and colour rendering index (CRI), that are related indirectly to human perception... (more)  

Using contrast and colour temperature to boost sales 
Information from Lighting Journal

What kind of lighting do customers prefer in retail spaces? How should light be used to raise attention levels or extend the amount of time customers spend in shops? A rare piece of research into retail lighting shows what customers prefer in retail lighting... (more)
VSDs can control multiple motors
by Rolf Lung, Varispeed

Many applications use one or more motors operating in parallel at the same desired speed. Using one variable speed drive (VSD) to control these multiple motors provides a host of advantages. These advantages include... (more)

The future of AC drives: smaller and smarter  

Information from ABB   


The past 20 years have seen some remarkable advances in AC drives technology. Miniaturisation is one of the most striking developments with a tenfold decrease in volume over the last decade alone... (more)
Buildings that change their behaviour
by Arthur Pease, Siemens

Smart building automation systems capable of trimming demand for electricity in response to real-time variations in prices could collectively shave many peaks and help to stabilise entire generation and distribution networks cost-effectively... (more)

Voltage power optimisation: efficiency, control over received power      

by Alan Palmer, Power Optimisa    


Until recently, few have thought or being able to tackle and control the actual raw power supply quality that enters their sites. Voltage optimisation is the fastest growing energy efficiency technology intervention in major European economies... (more)
Old buildings can be energy efficient
by Braam Dalgleish, Energy Cybernetics

Over a century old, the Hluhluwe Hotel in KwaZulu-Natal, a runner-up in the hotels category of the National Energy Barometer Survey awards, has not let its age stand in the way of becoming energy efficient... (more)
ECA News

Industry news

 

Company, product, project & service news