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The electrical sector contributes the highest with 36 per cent, while the automotive and construction sectors share 22 per cent and 10 per cent, respectively, an ICRA report said

Most importantly, replacement of steel and copper by aluminium in the automobile and power transmission sectors, respectively, is likely to support the aluminium demand.

Being a good conductor of electricity, aluminium has been gradually replacing copper in the power transmission sector. Given the same weight of the metal aluminium is twice as good in electrical conductivity when compared to copper.

Pure metallic carbon nanotubes could be the key to overhauling the electrical power grid with more efficient transmission lines - but only if they could be made in huge quantities and uniformly. Through a refined version of a technique called “amplification,” researchers at Rice University plan to make long and highly conductive nanotube fibers they dubbed “armchair quantum wire”  that could be woven into more efficient electrical transmission lines. They eagerly plan to generate a large quantity of this material by the end of summer. Aaron Franklin, a researcher at IBM’s Watson Research Center says that the update Rice study probably doesn’t reveal “the golden ticket for achieving high volumes of metallic-only tubes,” reports MIT Technology Review. We’ll just have to wait and see. Learn more.

This cable is used in 154kV or higher overhead transmission lines. Lighter in weight than copper line and lower in cost, this product also has the advantage of higher tensile strength.

As demand for power has been increasing and power transmission requires higher capacity, super-high voltage underground power cables are necessary to ensure reliability and safety of power transmission as well as a more pleasant urban appearance. XLPE insulation cables are becoming increasingly popular since they are easy to handle, can be easily connected and repaired, and have excellent electrical characteristics.

Alternative scenarios for long distance bulk power transmission – 800 kV HVDC and 1000 kV HVAC

Multiple standards-making bodies would have to get on board for 40G-over-twisted-pair to become a reality. This presentation explains the dynamics among standards groups and how they interrelate. It will use historical references to illustrate these interrelationships.

We are excited about the opportunity to offer aluminum conductor composite core (ACCC®) to our Utility customers as a unique cable solution for new transmission line construction and upgrades to the electrical grid

(CBS)  In the world of energy, the Holy Grail is a power source that's inexpensive and clean, with no emissions. Well over 100 start-ups in Silicon Valley are working on it, and one of them, Bloom Energy, is about to make public its invention: a little power plant-in-a-box they want to put literally in your backyard. You'll generate your own electricity with the box and it'll be wireless. The idea is to one day replace the big power plants and transmission line grid, the way the laptop moved in on the desktop and cell phones supplanted landlines. It has a lot of smart people believing and buzzing, even though the company has been unusually secretive - until now.

Heretofore, joining large aluminum underground power cable to aluminum or copper power cable with compression connectors was not feasible because of premature failure of the connector joint under electrical current loading. Unlike the long andbulky compression connectors used on bare overhead power lines where space is not a premium, underground compression connectors must be short to keep manhole size small and to reduce the time required to insulate the joint with hand-wrapped tape or otherinsulating materials. Overhead line connectors receieve appreciable cooling from air currents whereas commonly used paper or plastic insulation restricts the cooling of underground cable joints. Metal particle-filled grease joint compounds used inoverhead line compression connectors are not used for underground cable for several reasons. First, its use is precluded because of the possiblity of migration of the compound into the paper or along the insulation resulting in voltage puncture of theinsulation from ionization. Secondly, joint compounds of grease do not offer much improvement over no compound because grease will move under pressure and therefore does not constrain relative movement of connector and conductor strands whereashardenable resins such as epoxy do.