The subject of comparing the aluminum conductor Vs the copper made cable, whether it is in high or low voltage, never will get old or goes out of fashion.
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The wind turbine industry, as an example, follows certain standards which will change the preference in choosing suitable materials.
In 2020, the wind energy industry celebrated another successful year by commissioning a total of 16,913 MW of capacity across the board.
Since there are currently over 60,000 wind turbines in operation across 41 states, original equipment manufacturers (OEMs), asset owners, and independent service providers all keep up with the latest technological advancements in the industry in order to maximize the efficiencies of newly manufactured turbines and extend the life of their aging fleets.
Manufacturers of wind turbines go to considerable lengths to ensure that their products have a commissioned life of at least 20 to 30 years, as this is the average that asset owners anticipate when making an investment in a technology that calls for so many dependable components.
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It is believed that a single wind turbine contains about 8,000 separate components, all of which are subjected to some of the most severe conditions.
The American National Standards Institute (ANSI) approved UL 6141, also known as the Standard for Wind Turbines Permitting Entry of Personnel, in May 2016.
UL 6141 has served as a guiding standard for initiatives related to electrical safety and has imposed a number of limits on cable design and installation practices that were previously considered standard.
As a result of this endeavor, better cable installation procedures have paved the way, and the general architecture of the cable has evolved.
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Condition monitoring systems (CMS) and preventative maintenance (PM) programs troubleshoot and keep these machines and their components operational for a very long time, but just like the tires on a car, after a certain amount of time and usage, they simply need to be replaced.
This is analogous to the fact that these machines and their components can remain operational for a very long time.
At the drip loop, tower cables travel over a cable guide that is referred to as a "saddle" on their way up to the nacelle just beneath the yaw deck.
This is a prime example of a location within a wind turbine where cable quality can deteriorate over time.
This dangling "swagged" bundle of cables gives the nacelle the ability to rotate, which in turn adjusts the orientation of the hub and the blades relative to the wind.
When the nacelle rotates, these cables are subjected to continual twisting, bending, and even slapping into the middle of the yaw deck.
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This can cause damage to the cables.
It is possible for thermal aging and abrasion to occur during installation if cables are not correctly managed and spread out.
This results in the cables twisting against each other, which creates friction and heat, which in turn shortens the life of the cable jacket and/or the insulation.
The management of cables has seen significant advancement with the development of more recent fleets, although more enduring problems still exist in older operational fleets.
In wind power plants, a wide variety of cables and wires are utilized; however, the most prevalent types of cables and wires are either thermoplastics, such as PVC or PUR insulated cables, or elastomers, such as rubber cables.
In theory, the same chemical and physical degeneration processes can be applied to all different kinds of materials.
In addition, the process of aging in plastics is affected by a variety of other factors, both internal and external.