Articles
The significance of True RMS
The rapid changes in technology have meant that methods previously used for testing equipment are no longer accurate in many cases. Because an electrician comes across new technology on a regular basis, not to have a True RMS (root mean square) meter can be compared to a boxer going into a fight with one arm tied behind his back. In this article, Phil Collins, Engineering Support Manager, Techtronics Australia, explains what True RMS (TRMS) is and how to find it.
[ + ]The power of copper
Man first came to understand the value of copper around 10,000 BC. The Romans, Greeks, Aztecs and Egyptians were quite innovative in their use of copper and copper-tin alloys such as bronze and brass. The metal was readily accessible, very ductile and malleable, making it relatively easy to smelt. It also had a natural resistance to corrosion. The current extraordinary rate of development in China and India has significantly increased the demand on this resource, driving the cost of copper to record levels. As the lifeblood of all electrical systems, it is essential that designers and engineers are efficient in their use of copper to produce an economical solution without jeopardising the integrity of the electrical supply system.
[ + ]Don’t confuse price with total cost
The following cautionary tale, which shows the pitfalls of confusing price with cost, is a fairly accurate example of what we have been seeing in customers’ buying practices. What this story shows is that the true cost of wire includes so much more than the material cost. Those looking for true bargains need to consider a variety of factors such as rebates, product guarantees and return policies, and value-add features that may end up saving money in the long run. The calculation of costs must also consider lead time, fill rates, number of shipments to complete an order, as well as payment terms. All play a role in determining the true cost.
[ + ]Two policies that will hurt electrical contractors
The introduction of the carbon tax and the planned removal of the Australian Building and Construction Commission (ABCC) are two government policies that will affect the electrical and communications industry.
[ + ]A helping hand for struggling small businesses
The electrical industry in Australia is characterised by sole traders, family, micro and small businesses, which face daily challenges involved in running a company in difficult times.
[ + ]Energy-efficient cooling system for electrical cabinets
Seifert mtm Systems' second-generation models of the ecool series with speed-controlled compressors offer temperature stability for less component stress.
[ + ]OLED lighting materials market to hit $1bn in 2015, says NanoMarkets
Industry analyst firm NanoMarkets projects substantial growth in the OLED lighting materials market
[ + ]Project: Monitoring and controlling solar energy systems
The Desert Knowledge Australia Solar Centre (DKASC), a demonstration site for solar panels, was set up to help promote understanding and confidence in solar technologies. The site is an initiative of Desert Knowledge Australia and CAT Projects and is located about 9 km south of Alice Springs in the Northern Territory.
[ + ]Project: Upgrade of all electrical and communications systems at a fish feed plant
International fish feed supplier Nutreco recently upgraded its fish feed production plant in the Hobart suburb of Cambridge, Tasmania. The upgrade of the facility, which operates as Skretting Australia, included an extensive $3m rewiring of the entire plant by electrical services company Pacific Services Group (PSG) Tasmania. Skretting Australia is Australasia’s leading supplier of commercial fish feed. The plant was officially opened by Tasmanian Premier Lara Giddings in September.
[ + ]Tips on avoiding sham contracting arrangements
Businesses are increasingly getting caught out by the Fair Work Ombudsman on sham contracting arrangements. Below are some tips on how to avoid sham contracting arrangements.
[ + ]Seven safety tips when buying or installing Christmas lights
NECA warns consumers should be careful when buying products manufactured overseas as they may not meet Australian standards.
[ + ]$200bn of new revenues up for grabs in telecoms sector, says Ovum
Research firm Ovum says there will be $213.8bn of new revenues up for grabs in the telecoms sector between 2012 and 2015.
[ + ]First 400G network processor tested with Spirent’s high-speed ethernet test solution
Alcatel-Lucent has used Spirent TestCenter HyperMetrics mX 40/100G to validate the scale and performance of its FP3 Processor in initial public demonstrations.
[ + ]Building the NBN
Much has been said about the need for faster and more relevant training - but have we got it right? Is the method of training best served in a classroom, or through practical hands-on learning, or a combination of both? If we use both, how much should be the hands-on training and how much theoretical information do we need?
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