acableconnection
Vendor
- Oct 23, 2007
- 25
Is there an outdoor aerial cat 6 solution with lightning protection?
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outdoor cat 6 solution
- Thread starter acableconnection
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- #4
acableconnection
Vendor
- Oct 23, 2007
- 25
The original quote was for fiber, but the guy was asking, as its just under 300' total run, with 60' of outdoor in the middle.
I dont believe that the 110 blocks on lightning protection would be cat 6 compliant, especially after punching down and continuing on another 100'just wondering if there is anything new out there that im not aware of.
I dont believe that the 110 blocks on lightning protection would be cat 6 compliant, especially after punching down and continuing on another 100'just wondering if there is anything new out there that im not aware of.
You may not need lightening protection for only 60 feet if this is between two buldings!
Allan Goodson
Estimator
3D Datacom, Inc.
Allan Goodson
Estimator
3D Datacom, Inc.
mikeydidit
IS-IT--Management
If the conduit is not exposed at any point, then yes you could get away from protection. But it at any point the conduit is exposed, then I would not use it unless it was protected.
I also agree that fiber would be the best method for the money, not saying anything about the extra bandwidth you will get from it.
"A people that values its privileges above its principles soon loses both."
- Dwight D. Eisenhower (1890-1969), Inaugural Address, January 20, 1953
For the best response to a question, read faq690-6594
I also agree that fiber would be the best method for the money, not saying anything about the extra bandwidth you will get from it.
"A people that values its privileges above its principles soon loses both."
- Dwight D. Eisenhower (1890-1969), Inaugural Address, January 20, 1953
For the best response to a question, read faq690-6594
- Thread starter
- #9
acableconnection
Vendor
- Oct 23, 2007
- 25
I quoted the guy $1500 to install 6 strand mm. but he is wanting something cheaper to go between two office buildings..
Look up The Cone of Protection.
Basically you have a 40 degree angle of coverage from the roof or over hage of a building. So depending on the higth of the buildings your cable may be covered.
Allan Goodson
Estimator
3D Datacom, Inc.
Basically you have a 40 degree angle of coverage from the roof or over hage of a building. So depending on the higth of the buildings your cable may be covered.
Allan Goodson
Estimator
3D Datacom, Inc.
Very interesting. I was not aware of this principle.
I did find a reverse of this and now wonder which one is correct?
Thanks Allan for the info.
I did find a reverse of this and now wonder which one is correct?
Thanks Allan for the info.
Check the NEC"
I did and I think your Cone of Protection concept is fairly weak. Could you provide a cite?
While the OP specified and aerial solution there is a interesting exception for underground. NEC 800-30 allows for burial runs of up to 140' without primary protectors if there is a continuous metallic shield or conduit that is bonded on both ends to the building grounding system.
The other exceptions would be in exceptional locations. Tall buildings close together and the Pacific coast.
Of course all of this is moot if there is a possibility of the communications circuit coming in contact with any circuits over 300 volts to ground. If there is a possibility primary protectors are required.
Fiber is the way to go. In the long run it will save you money.
I did and I think your Cone of Protection concept is fairly weak. Could you provide a cite?
While the OP specified and aerial solution there is a interesting exception for underground. NEC 800-30 allows for burial runs of up to 140' without primary protectors if there is a continuous metallic shield or conduit that is bonded on both ends to the building grounding system.
The other exceptions would be in exceptional locations. Tall buildings close together and the Pacific coast.
Of course all of this is moot if there is a possibility of the communications circuit coming in contact with any circuits over 300 volts to ground. If there is a possibility primary protectors are required.
Fiber is the way to go. In the long run it will save you money.
Interesting POV on the "Cone of Protection"... Tall buildings and short distances.
If you are tight on money, it might be a consideration. However, I might not "gamble" with major server farms in each building coupled with live data and tons of software. I'm guessing now on the exact percent but I used to tell customers that they spend $500K to a Million$ on computers/software and skimp on the 2% for cabling and protection. Go figure.
Nice subject area for thought by Wires and AWGoodson.
Regards
Peter Buitenhek
ProfitDeveloper.com
"Never settle for a job well done...always look for cost cutting measures
If you are tight on money, it might be a consideration. However, I might not "gamble" with major server farms in each building coupled with live data and tons of software. I'm guessing now on the exact percent but I used to tell customers that they spend $500K to a Million$ on computers/software and skimp on the 2% for cabling and protection. Go figure.
Nice subject area for thought by Wires and AWGoodson.
Regards
Peter Buitenhek
ProfitDeveloper.com
"Never settle for a job well done...always look for cost cutting measures
Guys if you dont use protectors you are opening yourself up to a huge mess. Grounding and protection are two of the most important aspects in running any kind of outside plant cable. The NEC even calls for it...if sparkies can do it then telecom should be able to pull it off. Building entrance protectors are far cheaper than fried equipment and people! Lightning does hit the ground and travel.
For 60' go wireless if you cant afford to do the cabling right.
I was miserable, then someone told me "smile and be happy, things could be worse". So I smiled and was happy...and they were right, things were worse!
For 60' go wireless if you cant afford to do the cabling right.
I was miserable, then someone told me "smile and be happy, things could be worse". So I smiled and was happy...and they were right, things were worse!
- Thread starter
- #16
acableconnection
Vendor
- Oct 23, 2007
- 25
We ended up going with cat 5e outdoor, strapped to a guy-wire. Lightning protection for 1 cat 5e was pretty cheap, for what it does. The customer was happy paying $700 to connect his two buildings. less than half of what fiber would have been.
The customer was happy paying $700 to connect his two buildings. less than half of what fiber would have been."
Existing guy wire? I can't imagine you couldn't have done it with fiber for around $700. Converters $50 each, cable $300, and surely you could get it shop terminated for less than $200.
cgi.ebay.com/Fiber-Optic-Indoor-Outdoor-6-Strand-Multimode-500_W0QQitemZ400042713396
Nothing is worth more than what it sells for on eBay, many times it is worth less...
If the Bay makes you uncomfortable I am sure you could purchase 300' of 4 strand indoor/outdoor pre-terminated multi-mode fiber for less than $500. For example these people will provide the fiber for $405:
This company will do a real nice job with indoor/outdoor/plenum for $340:
Fiber is the way to go when interconnecting buildings. Heck I even use it inside if the network is fed off different electrical panels and I doubt the bonding system.
So to recap, parts cost for a 300' 4 strand multi-mode pre-terminated cable with pull ring and converters is $440 plus shipping.
Cheap at twice the price!
Existing guy wire? I can't imagine you couldn't have done it with fiber for around $700. Converters $50 each, cable $300, and surely you could get it shop terminated for less than $200.
cgi.ebay.com/Fiber-Optic-Indoor-Outdoor-6-Strand-Multimode-500_W0QQitemZ400042713396
Nothing is worth more than what it sells for on eBay, many times it is worth less...
If the Bay makes you uncomfortable I am sure you could purchase 300' of 4 strand indoor/outdoor pre-terminated multi-mode fiber for less than $500. For example these people will provide the fiber for $405:
This company will do a real nice job with indoor/outdoor/plenum for $340:
Fiber is the way to go when interconnecting buildings. Heck I even use it inside if the network is fed off different electrical panels and I doubt the bonding system.
So to recap, parts cost for a 300' 4 strand multi-mode pre-terminated cable with pull ring and converters is $440 plus shipping.
Cheap at twice the price!
- Thread starter
- #20
acableconnection
Vendor
- Oct 23, 2007
- 25
The quote for indoor/outdoor fiber was for $1500 (300'). cat 5e outdoor $700. lightning protectors on each end, grounded to earth ground on both ends. The guy wire was grounded too.
Its that simple, or is there a new way to intall lightning protection that Im not aware of?
Its that simple, or is there a new way to intall lightning protection that Im not aware of?
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