On 05/04/2016 10:52, Scott Howard wrote:
Do you have any references to fiber cabling having a lifespan of "vastly longer than a century"? Most cable manufacturers give a stated lifetime of somewhere in the 20-40 years, with a general industry expectation that it will normally last more than that - but I've never heard anyone claiming "vastly longer than a century" before now...
On 03/12/2015 11:47, Andy Farkas wrote: > > "Quigley's response to senate Estimates on the life of fibre ... > > Senator McEWEN—Just on the same issue, there are claims > made that fibre technology does not have a life long enough > to guarantee a return on investment. Can you make some > comment about that, Mr Quigley? > > Mr Quigley—Yes, I have heard those. I have had the same > debates with some of the media, who simply, as I said before, > are not particularly interested in the facts on this issue. It > astonishes me, to be honest, given that we are seeing huge > increases worldwide in fibre deployments. Companies such as > AT&T, Verizon and DT, all throughout Asia, are all deploying > fibre. We speak to the manufacturers of fibre. They simply do > not know how long the fibre will last because they can see no > mechanism by which it would degrade—unlike copper, which > is metal and which is carrying current. There is a natural > tendency, then, to get levels of corrosion. This is glass. It is > inherently stable. It is strengthened. Clearly if somebody puts > a spade through it, as through a piece of copper, they will > break it. But there is no inherent reason why this fibre should > degrade over time. It is very, very stable. So there have been > lots of reports about a 12-year life. I do not know where this > data is coming from, but it certainly is not supported by the > evidence we see overseas and not supported by any of the > people who should know, who are the fibre manufacturers. > > Senator BIRMINGHAM—So you cannot put a lifespan on it at all? > > Mr Quigley—I could not, frankly. I cannot put a lifespan on it. > > <http://www.aph.gov.au/hansard/senate/commttee/S13299.pdf> -andyf _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
