Exterior Telephone Wire Sizing - Electrical - DIY Chatroom Home Improvement Forum

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Old 01-31-2011, 07:11 PM   #1
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exterior telephone wire sizing

I just managed to destroy the buried telephone cables in my back yard when a backhoe ripped up a tree root. the wire I purchased for the repair is 24awg 4 pair and it seemed to be a perfect match. Then I found out that this was not the actual phone cable that was cut up, but a second one that had been laying there 'doa' for who knows how long. Did some more digging and found a second cable all cut up too. but it only has 3 (larger diameter)wires in it. Connected it with the above wire just too see if it was indeed the live wire and it is. What kind of wire is this? Is this the old cat3 cable?
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Old 01-31-2011, 07:20 PM   #2
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Could it be an electrical service?
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Old 01-31-2011, 07:23 PM   #3
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what is "larger diameter?

the phone company in my area runs a 4 pair cable that is in a semi-hard outer sheath (rigid plastic) with silicone grease inside and a metal shield around the conductors.

and what do you mean by "live". Static voltage on a phone line is somewhere around 48 vdc but as low as 6 vdc. Ring voltage is around 90-130 vac. ~20hz.
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Old 01-31-2011, 07:24 PM   #4
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Call the phone company and have them come and repair it.
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Old 01-31-2011, 07:43 PM   #5
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Telephone cable for overhead stringing often has thicker gauge (I think 16 gauge) steel wires for strength. Also, any cable thicker than 24 gauge will work for telephone wire although at greater cost.
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telephone cable buried

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