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Re: Thieves nick 1km of copper phone cable

"pete" <no-one@unknown.com> wrote in message
news:cOUGm.371272$uD.181265@en-nntp-09.am2.easynews.com...
> On Fri, 30 Oct 2009 22:38:19 -0000, John Nice wrote:
>>
>> "Martin Jay" <martin@spam-free.org.uk> wrote in message
>> news:594.1256931535.20091030@spam-free.org.uk...
>>> <http://news.bbc.co.uk/1/hi/england/sussex/8333774.stm>:
>>>
>>> ----- Begin Quote -----
>>>
>>> Hundreds of people were left without their landline phone service for
>>> nearly 48 hours after thieves stole 1km (0.6 mile) of copper cabling.
>>>
>>> Sussex Police said the 6in to 8in cable was cut and removed from the
>>> area near Drusilla's roundabout in Alfriston in the early hours of
>>> Wednesday.
>>>
>>> BT said telephone services to up 800 homes and businesses in Berwick
>>> were restored on Thursday evening.
>>>
>>> The estimated cost of repairing and replacing the cable was
£45,000.
>>>
>>> Officers believe thieves posing as workers wearing uniforms or
>>> high-visibility jackets used a vehicle to pull the cable out of the
>>> ground and take it away.
>>>
>>
>> Six to eight inches diameter?  Typical Sussex Police "accuracy". 
This
>> was
>> the force who warned people about £15 per minute premium rate
calls.
>
> The nice thing about the RS website is they give lots of data about their
> products. So we see that a 10mm thick 30-core cable weighs 15kg per 500m.
> Scaling this up (as the square of the diameter), then 1km would weigh
> 30kg, and if it was 15cm thick (i.e. 15^2 = 225) it would weigh 6.75
> tonnes.
> Ask youself: is this a reasonable amount to be nicked "in the early
hours"
> or is it more likely that the police were exaggerating - either through
> ignorance or "bigging up" the crime for their own purposes?
>
> Then there's the question of what force would be needed to overcome the
> friction as well as it's weight to pull the cable out of the ground (and
> whether it would snap while being pulled) and the sort of vehicle that
> could
> provide sufficient traction.

Well it must be possible to get it out with something as something must have
laid it there in the first place of course. ;-)

As a matter of interest when replacing copper with fibre, do BT usually
remove the copper or leave it in place?

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