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cat5 weatherproof?

By jon_w31 ·
Can I run cat5 cable outside?
Is it weatherproof?
I have a customer who wants a home network but does not want wireless or cable run through the house!

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cat5 weatherproof?

by Some Guy in Seattle In reply to cat5 weatherproof?

Since the cover is made of plastic/rubber/PVC/whatever, it is weatherproof. However, if it's close to the ground you may have to contend with critters gnawing on the cable. Extremely cold/hot weather may cause intermittent problems as the cables contract and expand. Provided the termination points are protected from the weather, you should be all right with the rest being outside.

However, if possible, take a tip from the phone company and run your cables through some piping and fill the pipes with an inert gas such as nitrogen. :-)

Hope that helps -

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cat5 weatherproof?

by jon_w31 In reply to cat5 weatherproof?

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cat5 weatherproof?

by timwalsh In reply to cat5 weatherproof?

I have not seen any white papers on either longevity or possible problem areas when installing UTP on the exterior of a structure.

The outer sheath on CAT5 UTP is either PVC (standard UTP) or Teflon (plenum-rated UTP). Weatherproof can be a relative term. If you mean water-resistant, the answer is probably yes as long as there is no break in the outer sheath (all it takes is one). UV rays could eventually cause a breakdown of the PVC sheath. Other factors could probably prove more detrimental than just the weather:
1. Depending on where the UTP is installed on the house and the color of the sheath, all sorts of wildlife (birds, rodents, bugs) could be attracted to it.
2. Installation - Signals passing over UTP can be very sensitive to sharp curves. For neat installation appearance, you will probably end up with sharp 90-degree turns where the cable leaves/enters the building or turns corners from one side of the building to another. While the customer may not notice much difference initially, as more computers are added to the network, or more data is pushed over the cable, throughput could be seriously degraded.
Another facet of installation that can cause problems is how the cable is fixed to the wall. Stapling the cable to the wall would probably give the neatest appearance. However if done improperly or with the wrong tools (i.e. standard staple gun vs. cable stapler), the staples could cause problems such as chafing or breaks in the outer sheath as wellas breaks in internal conductors.
Where the cables are run can also have an impact. Running the cable anywhere near lights, power meters and entry panels, phone entry locations, etc., could cause interference. If the cables are run close to the ground, tools such as hedge trimmers or lawnmowers running nearby could cause interference.
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cat5 weatherproof?

by timwalsh In reply to cat5 weatherproof?

Your best bet would be to talk with either cable manufacturers or cable installation professionals for what should/shouldn?t be done.

Hope this helps.

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cat5 weatherproof?

by jon_w31 In reply to cat5 weatherproof?

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cat5 weatherproof?

by TheChas In reply to cat5 weatherproof?

The outer sheath on most CAT5 cable is not heavy enough for an unprotected outdoor installation.

You either need to:
Find outdoor rated CAT5
Install the cable in exterior grade condiuit
Install a sheath over the cable.

In addition to the UVand "critter" concerns, if the outer sheath is not thick enough, it will not be water-proof.

Compare the outer sheath on interior and exterior power cords to get a comparison.

I would also advise the customer that running the wire from the outside raises numerous concerns, and get a waiver from him for any damages from the installation.
Insect and small animal entry;
Lose of insulation effectiveness, and air leaks;
Moisture in walls;
excetera.

If you must, conduit is the best option, as it will be the easiest to seal to the house where you drill the entry holes.

Chas

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cat5 weatherproof?

by TheChas In reply to cat5 weatherproof?

Spoke with a friend who does industrial network wireing.

He said that the outdoor rated CAT5 is referred to as "Arrial" cable.
It is UV rated, waterproof, and gel filled.

He does'nt understand why someone would want multiple holes through thewalls of their house either.

Chas

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cat5 weatherproof?

by jon_w31 In reply to cat5 weatherproof?

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cat5 weatherproof?

by OTL In reply to cat5 weatherproof?

Considering standard JK4 (Home telephone wire) is not UV/gas filled/Gel filled and lasts upto 20 years on the exterior of a house, 10 years hanging from a tree to the house. I see no reason why a standard cat 5 (properly installed) would not last the same period of time on a house. As long as the sheath is not damaged during the installation and it is not subjected to movement (will in time break the wires) or other undue wear and tear.

BTW 25+ years installing house wiring.

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cat5 weatherproof?

by jon_w31 In reply to cat5 weatherproof?

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