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EE Publishers
P O Box 458
Muldersdrift
1747
South Africa
Tel: 0115437000
Fax: 0115437025
admin@ee.co.za
www.eepublishers.co.za |
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EE Publishers (Pty) Ltd All rights reserved
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 Flavours of engineering by Rod Harker, ECSA
Registration as a professional with the Engineering Council of South Africa (ECSA) requires an accredited qualification, as well as practical training and experience. But what is the difference between Pr Eng; Pr Tech Eng; Pr Cert Eng and Pr Techni Eng?... (more) |
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ECA(SA) to issue Certificate of Compliance forms
The ECA(SA) has now been given permission by the chief inspector in the Department of Labour to produce and sell to its members its own pads of blank certificates of compliance/test reports to its members... ( more) |
Carte Blanche expose on electrical contractors
by Chris Greager, ECA
On 3 July 2011 Carte Blanche aired a segment on electrical contractors. Some members think that the show was"fixed". You have our absolute assurance that this is incorrect. We were not informed in advance which electrical contractors had been called in to attend to the fault... (more) |
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Earth leakage protection unravelled
by Brian Bilton, ECA
In the 1969 amendments to the 1963 Edition of the Standard Regulations for the Wiring of Premises (the "Blue Book") a new regulation 226 was added which read: "Automatic earth leakage protection is mandatory in certain instances in terms of these regulations... ( more) |
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No more the general worker
by Stephen Khola, ECA
Every member knows by now that the category of employee called the "general worker" ceased to exist on 31 January 2011 and all existing general workers at that date were upgraded to "electrical assistants" with the relevant salary increases... (more) |
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Employing a foreign national
by Santonette Naidoo, ECA
Question: I am contemplating hiring a few Zimbabweans at my company. Are there any requirements or restriction when employing foreign nationals? Answer: Firstly, it is important to understand that a foreign national is anyone who is not a citizen of South Africa... ( more) |
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Training systems meltdown
by Lorraine Molapisi, ECA
When the ESETA was placed under administration, the industry thought that finally it would be reorganised and brought under proper control. A number of problems experienced by the industry were raised with the new ESETA administration, but eight months down the line nothing has changed... (more) |
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Closure of the ECA's Durban training centre
by Chris Greager, ECA
Unfortunately it has been necessary to close the training centre in Durban. The final training course and a number of trade tests were conducted in the early part of July. It has only been operational for the past two and a half years, and during that time apprentices, elconops and private students have undergone training... (more) |
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East/South Cape CETA update
by Lucas Bowles, ECA
On 1 April 2011 the electrical contracting industry was officially demarcated under the Construction, Education and Training Authority (CETA). With little progress being made, the ECA invited Lance Ledingham, manager of the CETA for the East/South Cape region to address the concerns of members... (more)
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Super low-profile optical touch screens based on powerful miniature LEDs
Information from Osram
Super low-profile and incredibly powerful - these are the demands that touch screens place on infrared components. A new ChipLED is one of the smallest on the market. With its high performance, it is ideal for low-profile all-in-one computers and laptop displays... (more) |
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Light, space and reality
by Philip Rafael, PLDA
Light is the connection between the physical world and the observer, as through light we see and understand space. But how can it change reality? It can't, but it can change our perception of that reality... (more)
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World heritage in a new light
Information from Siemens
Streetlights that use light-emitting diodes (LEDs) cut electricity consumption by up to 80%. Not only are LEDs efficient; their light can also be directed optimally. A stroll after dark in the historic city center of Regensburg, Germany, raises a question... (more) |
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Enhancing preventive maintenance at a polyethylene plant
Information from Engineering Dynamics
A range of vibration monitoring equipment has been instrumental in ensuring that plastics manufacturer Safripol is able to keep up with high-output demands without causing any unnecessary damage to its machinery... (more)
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| Active energy efficiency makes permanent energy savings possible
Information from APC by Schneider Electric
On the premise that it is impossible to manage what cannot be measured, for large energy users - i.e. those other than residential - the active energy efficiency process should start with an assessment of how and where energy is used, and how much of it is consumed... (more) |
Why choose AC servo control over a pneumatic option?
Information from Omron
Pneumatic control may have a lower initial cost but its flexibility of motion in most cases is restricted and there are higher long-term energy costs and maintenance costs... ( more) |
Fibre-optic sensors in an industrial environment
by Johann Rumpler, Vepac
A recurring problem for users of photoelectric sensors is a lack of space - parts to be detected are too small and there is barely room to mount sensors. The same question emerges again and again: "How should I come up with a solution for the application at hand?" ... ( more) |
| Inspection of in-service Ex equipment - unsafe conditions and cures
by Johannes Auret, Explolabs and Certex
The inspection of explosion protected (Ex) equipment, together with appropriate maintenance and repair, is critical for safety. This paper highlights the differences between electrical and Ex inspections and presents some solutions based on standards covering the subject and best practice from experience... ( more)
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Compulsory regulations for cables are changing
by John Gavilanes, Lapp Group
This article details changes in the compulsory regulations and standards in the USA for electrical wiring and cabling used on industrial machinery. Although the article refers to the USA market, standards and regulations, there are lessons and insights to be gained that are also applicable to the SA market... (more)
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