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incorporating The Electrical Contractor 
Issue No 58                                                                                               June 2012 
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Eskom
In this issue...
- Local procurement for the SWH industry
- SA's need for a lighting master plan
- Construction price indices monitoring report
- Insubordination in the workplace
- ECA(SA) restoring momentum in training and development
- Automation company receives Hermes Award
- Renewables society gets new council
- Vector InBox: our winning letter
- The switch to white street lighting: an overview of the benefits
- LED street lighting: technological advances and their benefits
- Rechargeable batteries: the evolution and beyond
- Advantages of the larger drive
- Selection of control valves for water optimisation
- Energy efficiency, power quality issues of AC voltage controllers in water heaters
- The effect of geyser timers and low flow showerheads on SWH installations
- Clamp-on testing for earth resistance
- ECA News
- Industry news
- Company, product, project & service news
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Vector June 2012
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Mark Botha
Local procurement for the SWH industry
by Mark Botha, editor


In her budget speech to on 17 May 2012, energy minister Dipuo Peters said while the implementation of the solar water heater programme was making headway, the majority of the systems installed were imported... (more)

Barry Bredenkamp
SA needs a lighting master plan
by Barry Bredenkamp, SANEDI

The South African lighting industry needs a national lighting master plan to establish standards and performance criteria for future development, organise and prioritise options for future funding, and to define a broad, conceptual vision... (more)
Construction price indices monitoring report by Annerine Lamprecht, Industry Insight

The Contract Price Adjustments Provision (CPAP) indices are compiled for use by contractors who require a simple and agreed escalation formula to provide reasonable reimbursements for price fluctuation... (more)
Workplace skills plan/annual training report: 2012 - 2013 
by Lucas Bowles, ECA(SA)

Members who are paying Skills Development Levies are reminded that they could claim back 50% of levies paid. This is on condition that they complete and submit a Workplace Skills Plan (WSP) for 2012/2013 and an Annual Training Report (ATR) for 2011/2012 to the construction Ceta no later than 30 June 2012... (more)
ECA(SA) "restoring momentum" in training and development
by Lorraine Molapisi, ECA(SA)


The ECA(SA) has struggled in addressing the challenges faced by the industry with regard to training and development for over a year now. These challenges were mostly due to the industry's move from the Energy SETA to the Construction SETA... (more)
Automation company receives Hermes award
Information from Phoenix Contact

Phoenix Contact was elected the 2012 recipient of the Hermes Award for its LM-S lightning monitoring system. The award ceremony took place during the opening of the annual Hanover Trade Show, attended by German chancellor Angela Merkel and Chinese premier Wen Jiabao... (more)

Renewables society gets new council     

Information from SESSA

The Sustainable Energy Society of Southern Africa has elected a new council and executives for its divisional committees, which serve for a period of two years. SESSA's council is tasked with maintaining close relationships with individuals and organisations supporting clean energy and low-carbon technologies... (more)
 

Winning letter: The legalities of retrofitting

To our knowledge, there is no direct legislation that regulates the retrofitting of light fittings. The compulsory specification for electronic and electrical appliances (VC8055) regulates the safety of light fittings up to the point of sale... (more)  

The switch to white street lighting: an overview of the benefits
by Maciej Debowski, Philips Lighting Solutions

There are many ways in which white light can transform urban centres, not only aesthetically, but also in terms of safety and security. The role of outdoor lighting has evolved over the years. Its function in the1930s was to make driving safer... (more)

LED street lighting: technological advances and their benefits  

by Daniel Kasper, Beka  

      

Advances in electronics and LED technology will offer industry and customers an array of new options and applications in lighting application. But what are the essential characteristics of an efficient and durable LED street light?... (more)
Rechargeable batteries: the evolution and beyond
by Dr. Paul Lefley and Ayodele Soge, University of Leicester and Jonathan Starkey, Converteam

This article examines how batteries continue to evolve to match the power supply challenges of sectors ranging from portable electronic equipment to the automotive industry... (more)
Advantages of the larger drive 
by Johannes Ahlinder, Thomas L Johansson, ABB

Energy prices often vary according to the time of day and larger drives, with consumption optimised according to the prevailing energy price, can achieve the same daily output as smaller drives, but at a lower cost... (more)
Selection of control valves for water optimisation 
by W Booysen, Dr. JF van Rensburg & EH Mathews, North-West Univ.

Controlling water flow to underground mining sections reduces the amount of water required to be pumped back to the surface, resulting in significant energy savings. Water flow and pressure can be controlled by installing control valves at strategic positions throughout the water reticulation system... (more)

Energy efficiency, power quality issues of AC voltage controllers in water heaters    

by Dr. I Jahmeerbacus and C Bhurtun, University of Mauritius  


Typical instant water heaters have manually selectable discrete power settings. Such systems may use more energy. Switch-mode AC voltage controllers, on the other hand, can provide continuous adjustment of output power and have better temperature regulation capabilities when controlled in closed-loop mode... (more)
The effect of geyser timers and low flow showerheads on SWH installations
by Robin Thomson, SESSA

Eskom has contracted Ellies Renewables to install low flow showerheads and geyser timers at residential households who apply and are situated within the Ellies installation areas. These showerheads and timers will be provided and installed at no cost to the households... (more)
Clamp-on testing for earth resistance 
Information from Megger

Stakeless or clamp-on testing has been the accepted method of testing earth system resistance for many years. This method has a number of real user benefits, in particular not having to disconnect the electrode under test, increased user safety and significant savings in time and inconvenience... (more)
ECA News

Industry news

 

Company, product, project & service news