Re: The Smart Grid and Cybersecurity

[David Farber <dave () farber net>]

Begin forwarded message:

From: Bjørn <bv () norbionics com>
Date: April 12, 2009 8:14:11 PM EDT
To: dave () farber net
Subject: Re: [IP] Re:    The Smart Grid and Cybersecurity

On Sun, 12 Apr 2009 16:52:36 +0200, David Farber <dave () farber net>  
wrote:

> Begin forwarded message:
>
> From: Peter Swire <peter () peterswire net>
> Date: April 12, 2009 10:17:07 AM EDT
> To: "dave () farber net" <dave () farber net>
> Subject: RE: [IP] Re:   The Smart Grid and Cybersecurity
>
> Hi Dave:
>
> I took part of the weekend off, but here are some responses to  
> Thomas Lord's thoughtful questions.  Format is his question then my  
> response:
>
> 1. How are cost savings obtained by putting up high voltage power  
> lines and fiber at the
> same time?   My naive understanding is that
> the power lines are generally strung between towers while fiber is  
> usually buried.  Even if the same right of ways are used it seems  
> like you are suggesting having two crews, in the same spot, at the  
> same time, getting in one another's
> way.   I did find reference elsewhere to case
> in Germany where power and fiber were both buried and were buried in  
> the same conduit - so I can see the cost savings there - but is that  
> the plan here?

At least in Norway, fiber is spun around the high voltage line. I can  
see a cost saving from installing power lines with the fibe already  
integrated with the conductor instead of using crawling robots to spin  
fiber around the conducor after it has been put in place.


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