Home › Electrical Engineering Forum › General Discussion › Cable trays: even faster to install.
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2011/11/03 at 3:41 pm #10688LaurentParticipant
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
[caption id="attachment_4157" align="alignleft" width="243" caption="CTS : stored flat, this angle will be quickly shaped when the time comes."][/caption]
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.
[caption id="attachment_4159" align="alignleft" width="300" caption="Gewiss: a variable-angle elbow can be adapted for every situation on the worksite."][/caption]
It’s an interesting idea to reduce the number of references and increase the polyvalence of solutions. Gewiss also suggests to replace hot-dip galvanized cable tray elements by components with a zinc + aluminum coating so that,
even the element is cut, the metal stays protected at its end because of the effect of galvanic coupling. According to Gewiss, this surface treatment offers a resistance four times higher than hot-dip galvanized!
Legrand works on its part for integrated connection solutions between cable tray sections and particularly for assembly methods that don’t require any tool.
Taking care of optic fiber
Since 2 years, Panduit has been developing cable management solutions for optic fibers and copper cables for computer rooms from 50 to 100m². The American manufacturer has developed relations with electricians for computer room projects, particularly in the context of energy issues.
[caption id="attachment_4158" align="alignleft" width="189" caption="Gewiss: The high protection zinc + aluminium coating of this cable tray offers a strong protection for aggressive atmospheres."][/caption]
Launched recently, Wyr-Grid is a wire cable tray without edges on top. Only small edges below the tray ensure the rigidity, thus a reduction in the number of cut-outs required for the assembly of elements at the worksite. In order to maintain the cables, it is even possible to add at will side clips to avoid any overflowing. According to Panduit, this concept permits to save until 50% of implementation time. Not to forget the fast fixing of pre-connected cassettes or even derivation accessories respecting the data cable’s bend radius. This wire cable tray brings an added value for optic fiber, knowing it is compatible with Fiber-Runner solution. It can also be used for routing of power cables.
Saving time for hanging
An alternative to the threaded rod is the system of suspension by hangers. Adjustable without tools, Gripple Express doesn’t need the small key previously required to adjust the length of the cable: the operation can be made by hand with 2 pushbuttons arranged at each end. Besides, Gripple has recently launched an alternative to the profile standard 41x41mm: catenary kits assume the role of the primary structure for the support of cable trays (or other M&E services).
2011/12/05 at 7:59 pm #12707AnonymousGuestWow!Its just innovative technology which keeps the cables safe and fastly installed.Prevent cables from cut or unwanted behavior. Should be implement to all.
2011/12/05 at 8:37 pm #12708AnonymousGuestI think these trays are good for both fiber optics and simple Internet cables.Really best alternate of old existing cable hangers.
2011/12/17 at 12:59 am #12730comcableguyParticipantHave any of you used the product Com Dangles? Their web site is http://www.comdangles.com . They appear to be for low voltage cables only and are very inexpensive. It is plenum rated and UL listed and made of plastic which would not damage cables. The thing that caught my eye is that they have UL approved installation instructions indicating they do not have to tie off to the ceiling grid below. That would be a huge cost savings in installation time, and if they are less expensive to begin with, this may be a great way to go. I have seen them at a couple of jobs in San Jose and Mountain View. They seem to work well and look good.
Any comments on the product would be appreciated.
2011/12/19 at 10:44 pm #12737AnonymousGuestWow this looks very effective, does anybody have a idea of the price
2011/12/20 at 12:52 am #12739comcableguyParticipantI sent an email. They said 89 cents and they would ship anywhere in US for free. That's a heck of a lot less then I'm spending for J's. I think I am going to try them out and see how it goes. From what I can see they would be a good cost saver for the small runs off of the mains. I don't think I would use them for a heavy bundle.
If anyone out there knows more about them, let me know.
2012/01/03 at 6:55 pm #12787comcableguyParticipantI tried them over the Holidays at a Walmart up here. They worked fine. I think I found me a good product.
happy new year!
2012/02/21 at 9:48 am #12858AnonymousGuestThe new product, which was designed following a period of consultation with specifiers, installers and engineers, is faster and easier to install, has fewer components, reduces on-site man hours and offers improved health and safety.
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