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EE Publishers
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South Africa
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Fax: 0115437025
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An energy crisis or not?
by Dr. Philip Lloyd, CPUT Where energy is concerned, our government suffers from multiple split personalities. Eskom falls under the Department of Public Enterprises, with the Department of Energy setting overall policy and the Department of Environmental Affairs yapping at their heels. The National Energy Regulator (NERSA) controls the price while EDI Holdings tries to set up regional electricity distributors... ( more) |
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Draft amendments to the construction regulations
by Fanie de Swardt, The SA Labour Guide
On 11 May 2010 new Draft Amendment were published for public comment (Notice 391 of 2010). If the new amendments are accepted, they could have a huge impact on the construction industry, and most business and property owners. Most people think the regulations will not affect on them. Be careful not to make a mistake in this regard... ( more) |
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Cut refrigeration costs
Information from eCube
By positioning it directly on the thermostat sensor, the eCube reduces the number of compressor starts and run time. It lets the control system measure the temperature of the products in the refrigerated space, not the air temperature, thus providing a more stable and consistent temperature in the refrigerated space... ( more) |
How to transform your business - get your black belt in "Six Sigma"
by EE Publishers staff writer
Book Review: The Six Sigma Way by PS Pand, RP Neuman and RR Cavanagh. Part 3 of a four-part series. This might be "the most important new core competency your organisation will need to develop in the 21st century. Understanding what customers really want"... ( more) |
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Fluorescent technology still very much alive
by Henk Rotman, Philips
With the rapid expansion of solid state lighting (LEDs) in both availability and use, one would expect that the development of the traditional light sources would slowly come to an end. When looking at fluorescent lamps, the opposite is true... ( more) |
Mains voltage halogen
by Brian Rowell, Lightworx
This article is an extract from the book: "Lighting Design and Application - a practical guide for lighting practitioners", which is available from EE Publishers... ( more) |
Bridges over troubled highways
Information from Giantlight
Bridges over highways are highly visible landmarks, and a programme to beautify them has achieved notable results.The South African Roads Agency Limited (SANRAL) and various local authorities awarded contracts to Giantlight to illuminate some highway bridges... ( more) |
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High efficiency power supply changes the way high reliability systems are designed
Information from Vepac
The size or power density of a power supply is a key criterion when selecting the optimum product for a given application. In applications where fans are not desirable due to noise or reliability concerns then efficiency becomes of primary concern... ( more) |
Practical guide: how to size a standby power generator
by Philip Hampton, Powermode
Standby power generators are becoming an essential component of any emergency power strategy, often complementing the installation of uninterruptible power supply (UPS) systems and power inverters... (more) |
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Smart machines, more power
Information Rockwell Automation
Information-enabled machines have many advantages: they help machine builders reduce total cost to design, develop and deliver those machines to the market. As the economy has cooled, demand for information-enabled machines has heated up...( more) |
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How to avoid errors when applying thermal paste
by Dieter Esau and Dr. Michaela Strube, Semikron
The weak point of heat-sink-mounted power modules is the "gap" between the module and the heat sink which results from unevenness on the contact surfaces and which has to be filled with a thermal conductive medium in order to get rid of the air pockets. Semikron is working on closing this "gap" on two levels... ( more) |
Acid plant achieves energy efficiency and controls emissions
Information from Honeywell
The Yara Belle Plaine, a major producer of ammonia, granulated urea and nitric acid, was looking to improve the energy efficiency of its plant by operating at consistent, stable, high levels of production while at the same time achieving tighter control of greenhouse gas (NOx and CH4) emissions... ( more) |
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Comparison of aluminium vs. copper power cables for use in industrial installations
by Robin Coombs, Bateman
There are positive and negative factors involved in selecting aluminium cables for use in a project. Ever since the introduction of aluminiumcored electrical cable, cost savings have been the sought-after "pot of gold". The price of copper on the LSE skyrocketed, adding fuel to the fire... ( more) |
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Installation testing of residual current operated devices (RCDs)
Residual current operated devices (RCDs) are often fitted in electrical installations to provide additional protection against fire and electrical shocks. Verifying the correct and safe operation of RCDs involves a number of dedicated tests... ( more) |
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An electrical installation horror story
Information from Voltimum
Peter McKnight of Scope Electrical Engineers in the UK recently acted as a credible expert in court for a couple who were messed around by a cowboy electrician. When a judge stated "The British standards and regulations have no standing in this court" during the case, Peter decided that a letter had to be written... ( more) |
Company, product, project & service news
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