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 Building brics and stumbling blocs
by Mark Botha, editor
Barlow Logistics has released its annual survey, "Supply chain foresight 2012", which provides an in-depth look at South Africa's somewhat precarious position as a trade and logistics gateway into the rest of the continent... (more)
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 Department of Labour dumps the ECB
by Chris Yelland, investigative editor
The Chief Inspector of the Department of Labour has given notice that, with effect from 1 June 2012, it will assume responsibility directly for the statutory registration of electrical contractors... (more)
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 ECA on training, BBBEE and its Presidential Excellence Awardsby Mark Botha, editorElectrical Contractors Association president Mark Mfikoe describes the inability to develop skills in the electrical and other industries as "the biggest scandal in this country"... ( more)
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What is happening in the industry?
by Chris Greager, national director, operations, ECA
An update on the ECA(SA) and the Bargaining Council; the state of training in the industry; the Electrical Contracting Board and the registration of contractors in SA, and the use of flat twin and earth cables outdoors... ( more) |
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China effect: "eroded economy, increased unemployment, inferior product"
by Dave McDonald, Jasco Electrical Manufacturers
The "China effect" is being felt the world over as business and retail look towards the Far East to source products rather than supporting local manufacturers for the simple reason that goods manufactured in China are cheaper... ( more) |
Vector Inbox: Winning letter to the editor
Write a letter to the editor and be in line to win a prize. This month's winning letter to the editor: " Switching street lighting off during the day will save the Gauteng Freeway Improvement Project (GFIP) some very precious energy!"... ( more) |
CESA supports "integrity pact"
by Graham Pirie, CESA
Consulting Engineers South Africa (CESA) supports Minister Ebrahim Patel's recent announcement of government's new "integrity pact" to screen firms for big-project deals, insisting on "value for money" ... ( more) |
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Experts Q&A
Our experts solve readers' technical problems
Electrical contracting often presents problems which, when solved by experts and shared in a forum, can be turned into learning opportunities. Working in co-operation with the ECA(SA) and other experts, Vector now provides such a forum... (more)
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Unfair dismissal: Part One
by Shantonette Naidoo, ECA regional director, KZN
When an employer tries to remedy an unfair dismissal by making a genuine offer, and the employee refuses to accept the offer, the employee may end up receiving no compensation even if the dismissal is deemed to be unfair... (more)
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Cities "more liveable" with LEDs
by Maciej Debowski, Philips Lighting
Lighting plays a central role in how people feel about their city or town. That's why the illumination of streets and pedestrian areas has evolved from simple functional lighting into a more demanding and creative discipline... (more) |
LED down-lights: 220 or 12 V?
by Craig Booysen, LED Lighting
The LED industry is beset with misunderstandings regarding the use of 220 V LED down-lights. This stems from the belief that these lights no longer need a power supply. While so-called halogen downlights can function directly off 220 V, LED technology, in the main, cannot... ( more) |
What is a lumen?
Information from BrightgreenIt is a common belief that brightness is measured in watt and that the higher the wattage the brighter the light will be. Turning on the lights is about to become more interesting with the environmental impact of energy waste in the lighting industry under the spotlight... ( more)
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Energy efficiency of swimming pools
by Theunis Verster, Electune
Most domestic swimming pools use electricity very inefficiently. Close analysis of one typical pool installation brings very insightful conclusions to the fore... ( more) |
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New roles for permanent magnet technology
by Jouni Ikäheimo, ABB
For many decades, permanent magnet technology has been used in smaller scale applications where its favorable weight-to-performance ratio is an advantage. Its use in bigger electrical machines, however, has not been that common... ( more) |
Retrofitting buildings to lower energy consumption
by Takalani Bridget Thovhakale, Tracey Morton McKay and June Meeuwis, University of Johannesburg A comparative study of electricity consumption in two buildings of similar architectural design and floor space, one of which was retrofitted at a cost of R4,3-million, with significant results... ( more) |
Automation's ground floor opportunity
Information from Siemens In the future, smart buildings will adjust their electricity consumption to fluctuating supplies of solar and wind power automatically. A recent study demonstrates the technical feasibility of this approach... ( more) |
Insulation or high pot test: what's the difference?
by Jeff Jowett, MeggerTwo common types of electrical testing are often confused: insulation testing and "high-potting". Both are similar in their method, but differ critically in degree and aim... ( more) |
The different types of UPS system
by Neil Rasmussen, APC by Schneider ElectricThe various types of uninterruptible power supply (UPS) often cause confusion in the data centre industry. It is, for example, believed widely that there are only two types of UPS system: standby and on-line ... ( more) |
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