Ultra-lightweight Battery Cable 4 Awg Aircraft, Racecars, Nascar, / Lineal Foot on 2040-parts.com
Southbridge, Massachusetts, United States
Copper Cables; Aluminum Cables? There’s Something Much
Better: Copper-Clad Aluminum! In the 1970’s Piper Aircraft thought they had a better idea and sold lots of small airplanes with aluminum high-current wiring. Years later they sheepishly issued Service Bulletins 836 and 836A to remove this wiring and change it back to copper. This happened around the same time the housing industry was regretting all the aluminum wiring they had put into houses when the houses started to burn down. But hold on a second! The only problem Piper had was a plague of poor-starting troubles. There was one wire/fire accident, but its cause is still in doubt. The housing industry’s problem was that they used aluminum wire with connection hardware designed for copper. Aluminum is used everywhere in the electrical industry.
Motors are wound with it, high-voltage lines are made with it, and the drop
from the power line to your house’s circuit breaker box is aluminum.
Given the weight of wiring in an airplane or racecar, aluminum looks like a good way to save weight, but it represents some compromises—Aluminum is much harder to work with than copper. Furthermore, low-voltage wiring is particularly tricky with aluminum. Power companies have to strengthen aluminum high-voltage cables that hang from transmission towers with steel wire. Special connectors are required. Special goops are necessary to prevent corrosion at joints, and sometimes the outside of the aluminum must be coated, plated or anodized to make its surface behave. There is still a long history of problems with aluminum wire, and a lot of engineers spend their careers trying to solve the problems. But the ideal solution is to make a wire that is copper on the outside and aluminum on the inside. This is like packaging the aluminum inside copper tubing. The wire has the low-corrosion characteristics and great solderability of copper but possesses the high-conductivity-per-mass of aluminum, resulting in a huge weight savings. This is NOT copper-plated. The copper outsides are fused on before the wire is drawn. The resulting cable is a little fatter but much lighter. If you replace 4 AWG copper with Super-4-CCA, you save over one-ounce per foot compared to copper. Remember composite vehicles need a ground cable too. FACT: A long problem-history exists using plain aluminum wire, but there is no problem-history with Copper-clad-aluminum (CCA) wire at all. Installation: CCA can be treated exactly like copper, it
crimps almost the same and it solders even easier. The cable is more expensive due the small production runs, but the big airplane guys like Airbus and Boeing use this stuff by the mile. Unfortunately, they won’t sell you any. (The Super-4-CCA uses common AWG 2 lugs. (Shown but not supplied). Applications we sell to:
We also make custom sizes with specified insulation if you can buy a minimum of only 500 feet. Delivery time is usually only 3-4 weeks.
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Bogus DVLA websites costing motorists
Mon, 10 Feb 2014A number of websites claiming to offer Driver and Vehicle Licencing Agency (DVLA) test booking services are costing drivers up to three times as much for routine applications, according to new reports. The Office of Fair Trading has confirmed that these fake sites exceed the standard DVLA costs for booking a driving theory or practical test – priced at £31 and £62 respectively – but that the independently run services are not actually illegal. On Bing: see pictures of the driving test MSN Cars learner drivers guide Preying on less experienced learner drivers looking to put in for their test, these sites generally appear as sponsored links resulting from an internet search.
AAA to deploy fast-charging trucks for stranded EV drivers
Wed, 22 Jun 2011The American Automobile Association plans to use fast-charging trucks to help electric-vehicle drivers who get stranded when their car battery runs out. AAA will begin testing the trucks starting in August, the group told Bloomberg. At first, there will be six "mobile charging units" stationed in California, Oregon, Washington, Florida, Tennessee and Georgia.
2013 BMW M5 facelift & new M6 get Competition Package
Tue, 21 May 2013The BMW M5 (left) & M6 with new Competition Packacge But the 2013 BMW M5 – and its coupe sister, the BMW M6 – will also be getting a Competition Package option for 2013, which is probably more interesting than the minor tweaks to the 2013 5 Series. The Competition Package adds more power to both the M5 and M6 – a whole 15bhp, taking it up to 567bhp – enough to improve the 0-62mph by 0.2s on both M5 and M6 as well as re-tuned dampers and springs – which lower ride height on the M5, but not the M6 – stiffer anti-roll bars, new M Diff and an improved Dynamic Mode which should allow you to play a bit more. On the cosmetic front, just like the 5 Series facelift, you’ll have to look quite hard to see what the Competition Package adds, but you do get a black finish on the tail pipes and a slightly different set of 20″ alloys.