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Missed something? Here are November main subjectsDecember 2nd, 2011 | 3 Comments | Posted in Last month main subjects Tags: electrical calculation software, electrical calculations, electrical engineer, electrical fuses Have you already shared your own calculation tool? And above all, are you ready to share it? This is the debate of the month that you could answer in this article. This month in our community we will introduce Gunther, a member who has written an article about arc flash for the blog some weeks ago. We also are going to ask you to help some members who have no answer to their topics launched in the forum. By the way you can also respond to Fred’s blog article “Schneider Electric sells products with fuses… LOL“. Read the rest of this entry » Join the forum discussion on this post Schneider Electric sells products with fuses… LOLNovember 23rd, 2011 | 7 Comments | Posted in Electrical distribution Tags: electric fuses, electrical engineering, electrical fuses, low voltage fuse Switch-fuse disconnector After more than 20 years trying to convince me to use low-voltage circuit breakers everywhere, the sales engineer from Schneider Electric, whom I know very well, approached me about using fuses … I could not believe my ears! I wanted to share my story with you and get your opinion… Read the rest of this entry » Join the forum discussion on this post Missed something? Here are October main subjects.November 8th, 2011 | 1 Comment | Posted in Last month main subjects Tags: electrical calculation software, electrical safety, Electrical Standards, IEEE1584, nfpa 70e In this article we will talk again about the risks of short circuit arc flash evoked in this article, and give you some community news about the creation of a a new sharing area. Then we will mention some forum posts without answer, hoping you could help their authors and maybe find a solution. Finally we will meet another member of our community, Ahmadalsayed20. Read the rest of this entry » Join the forum discussion on this post Cable trays: even faster to installNovember 3rd, 2011 | 2 Comments | Posted in Electrical distribution Tags: cable electrical, electrical cables, Electrical distribution, installation cable There is no lack of innovation in the field of cable management systems for wires, cables and optical fibers. Not so surprising as cable management systems represent a significant cost in labor and are key to the networks distribution strategy. One could think that cable trays in steel wire or in sheet metal have reached a peak in innovation. Manufacturers are always launching new functions or new assembly methods in order to stand out in a very competitive market. The overall trend is the simplification of ranges and thus the speed of installation. Distributors (who want to stock references and accessories always more polyvalent and less bulky), installers and their subcontractors (in permanent search of saving time on the worksite) are directly concerned. Intuitive and no cut-out assembly CTS : stored flat, this angle will be quickly shaped when the time comes. CTS with its brand CES, proposes for example intuitive assembly solutions while trying to limit the need for cut-outs as much as possible. Cut-outs constitute indeed a waste of time and increase the risks of accidents. Besides, this manufacturer should soon launch a significant improvement for the standard rail 41x41mm, integrating more functions… and fewer accessories. Gewiss offers a variable-angle elbow named Maricurve that adjusts without cut-outs. A plier or a hammer are sufficient to initiate the needed deformation and to adapt the angle at the worksite. All this based on one single element delivered straight. This accessory ensures an automatic coupling and guarantees ground continuity. Read the rest of this entry » Join the forum discussion on this post Warmth, cold, humidity: the proper atmosphere inside the enclosuresOctober 14th, 2011 | 3 Comments | Posted in Panel Building Tags: electrical switchboard, enclosure air conditioner, enclosure cooling, heat dissipation Most of the electrical panels and switchboards don’t need any thermal management for their internal atmosphere. The variation range of their internal temperature remains acceptable through the seasons and stays within the limitations imposed by the incorporated devices. However, some electrical switchboards should deal with extremely cold temperatures (technical rooms in the mountain) or with very warm or humid atmospheres (installations in Africa, in the Far East,…). Without going that far, some electrical switchboards contain a high density of power electronics devices. These electronic devices are more and more compact and generate a high level of heat dissipation. It is particularly true as examples for transformers, and for variable speed drives too. This situation is also frequent in little or big computing rooms. So, what are the solutions for electrical switchboards? Read the rest of this entry » Join the forum discussion on this post