| Author |
Message |
alodoiska
Guest
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 Posted:
Tue Apr 26, 2005 4:20 pm Post subject:
New techniques |
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Hello everybody,
I would be grateful if someone could upgrade my knowledge on new
techniques to lay down fiber cable in urban areas, either in sewerage,
water conduit or directly in their own protective duct.
Are there any new techniques which enable minimum digging and damage to
streets and urban facilities to lay down fiber optic cable?
Thanks,
Antony |
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James Knott
Guest
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| Posted:
Wed Apr 27, 2005 12:20 am Post subject:
Re: New techniques |
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alodoiska wrote:
| Quote: | Hello everybody,
I would be grateful if someone could upgrade my knowledge on new
techniques to lay down fiber cable in urban areas, either in sewerage,
water conduit or directly in their own protective duct.
Are there any new techniques which enable minimum digging and damage to
streets and urban facilities to lay down fiber optic cable?
|
There used to be a company in Canada, called Stream Communications, who ran
fibre through sewer lines. They developed robots, that cleaned the line
and then attached the fibre to the wall. However, IIRC, they went under,
during that big bust a few years back. |
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alodoiska
Guest
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| Posted:
Wed Apr 27, 2005 8:20 am Post subject:
Re: New techniques |
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Dear James,
What are new ways, what about electric utility network or else?
My area is a combination of urban area with narrow streets and highways
in between.
Antony |
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James Knott
Guest
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| Posted:
Wed Apr 27, 2005 3:52 pm Post subject:
Re: New techniques |
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alodoiska wrote:
| Quote: | Dear James,
What are new ways, what about electric utility network or else?
|
There some places that use power line distribution, but there's a severe
interference problem with licenced radio spectrum users.
| Quote: |
My area is a combination of urban area with narrow streets and highways
in between.
Antony |
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Justin T. Clausen
Guest
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| Posted:
Wed Apr 27, 2005 4:20 pm Post subject:
Re: New techniques |
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alodoiska wrote:
| Quote: | Dear James,
What are new ways, what about electric utility network or else?
My area is a combination of urban area with narrow streets and highways
in between.
Antony
I've heard rumors about a new fiber optic cable that is installed in the |
asphalt, similar to the sensors for stop lights. Cut a grove in the
asphalt, lay in the fiber, re-fill the asphalt. But I've never seen it,
or looked it up, so you're on your own there.
JT |
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Justin Time
Guest
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| Posted:
Wed Apr 27, 2005 4:20 pm Post subject:
Re: New techniques |
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Among the issues of running fiber on electrical utility poles is the
cable support mechanism. Some of the newer fiber packages are using a
totally nonconductive construction allowing the fiber to be placed
within the required exclusion area for mounting other services to
utility poles. This is important in areas where you do have access to
the utility poles, but the density of electrical service lines would
cause a traditional fiber with either a metallic messenger wire or
strength strand to be mounted with less than the minimum clearance
under the fiber strand. |
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James Knott
Guest
|
| Posted:
Thu Apr 28, 2005 12:20 am Post subject:
Re: New techniques |
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Justin Time wrote:
| Quote: | Among the issues of running fiber on electrical utility poles is the
cable support mechanism. Some of the newer fiber packages are using a
totally nonconductive construction allowing the fiber to be placed
within the required exclusion area for mounting other services to
utility poles. This is important in areas where you do have access to
the utility poles, but the density of electrical service lines would
cause a traditional fiber with either a metallic messenger wire or
strength strand to be mounted with less than the minimum clearance
under the fiber strand.
|
Several years ago, I worked for a telecommunications company. We often ran
fibre into a building via electrical ducts. We could never have done that
with copper cables. Also, in some areas, the electical utility will run
fibre to customers, along side the AC power feeds. |
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James Knott
Guest
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| Posted:
Thu Apr 28, 2005 12:20 am Post subject:
Re: New techniques |
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Justin T. Clausen wrote:
| Quote: | I've heard rumors about a new fiber optic cable that is installed in the
asphalt, similar to the sensors for stop lights. Cut a grove in the
asphalt, lay in the fiber, re-fill the asphalt. But I've never seen it,
or looked it up, so you're on your own there.
|
Given some of the roads around here, I'd be worried about fibre breaks.
Incidentally, a company I used to work for, ran fibre along side railroad
tracks. It worked fine, except for one day, when a large sink hole
appeared under one side of the track, and took out the fibre. Then there's
always "backhoe fade". ;-) |
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Justin T. Clausen
Guest
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| Posted:
Fri Apr 29, 2005 12:20 am Post subject:
Re: New techniques |
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James Knott wrote:
| Quote: | Justin T. Clausen wrote:
I've heard rumors about a new fiber optic cable that is installed in the
asphalt, similar to the sensors for stop lights. Cut a grove in the
asphalt, lay in the fiber, re-fill the asphalt. But I've never seen it,
or looked it up, so you're on your own there.
Given some of the roads around here, I'd be worried about fibre breaks.
Incidentally, a company I used to work for, ran fibre along side railroad
tracks. It worked fine, except for one day, when a large sink hole
appeared under one side of the track, and took out the fibre. Then there's
always "backhoe fade". ;-)
I think I've seen pictures of that. Did the Lightbrigade company show |
up at that break?
Yeah, I'd have issues with the road conditions as well. I would think
it would have to be in highly urban areas as those roads seem to get the
most attention. |
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laginikoro_a
Guest
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| Posted:
Fri Apr 29, 2005 7:48 am Post subject:
Re: New techniques |
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Hi alodoiska,
here in Fiji Islands, we have 2 companys [i.e Telecom] which both uses
fiber optic. one has an advantage, they have underground pipes telecom
chambers and all but the other dont but they have electrical post. so what
the latter company did is that they run their cables from electrical post
to post and they have now more advantage than the former compnay
[underground].
this is only a suggestion.
thank you
-------------------------------------
alodoiska wrote:
| Quote: | Hello everybody,
I would be grateful if someone could upgrade my knowledge on new
techniques to lay down fiber cable in urban areas, either in sewerage,
water conduit or directly in their own protective duct.
Are there any new techniques which enable minimum digging and damage to
streets and urban facilities to lay down fiber optic cable?
Thanks,
Antony
|
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