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copper cable standard for telephone 2
- Thread starter dnaserver
- Start date
franklin97355
Technical User
For phone there should be no shorts, opens or resistance between conductors. As for resistance the cable should have a spec stating how many feet per ohm and all pairs should be close to each other in value.
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1
- #3
Not sure of the exact intention of your post. Telephone cable should generally meet the EIA/TIA "Cat. 3" standards. The loss and resistance at 200 meters would be very low no matter the cable.
However the real key is to buy cable, designed for the task at hand, from a reputable manufacturer.
In your case the most important factor of all is that the cable will be underground. So you need a filled cable of the direct burial type.
A good vendor, such as Clifford, will have what you need:
L-com has direct burial cat. 5 which would be overkill but would work fine. There are other suppliers too - for example Graybar probably could get you this too.
However the real key is to buy cable, designed for the task at hand, from a reputable manufacturer.
In your case the most important factor of all is that the cable will be underground. So you need a filled cable of the direct burial type.
A good vendor, such as Clifford, will have what you need:
L-com has direct burial cat. 5 which would be overkill but would work fine. There are other suppliers too - for example Graybar probably could get you this too.
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1
- #4
If you can, a good used 3M Dynatel Test Set will tell you just about everything you will need to know about your cable and any services running through it. It's what we use in our OSP division. But Honestly, filled cable in a good lubed conduit with non-excessive line pull levels and good bonding at both ends at 200m, no problems should arise. Maybe at 200,000m , but not 200m.
If you need any pulling info, as well as bonding, etc...
just ask!
-T-
Trevor Farren
Metrotech Telecom Inc.
If you need any pulling info, as well as bonding, etc...
just ask!
-T-
Trevor Farren
Metrotech Telecom Inc.
Well for 200m you may need a puller or at least a couple of big guys to pull it.
1. Clean the conduit. Use a rag tied to your rodder or jet line or a proper conduit scraper, at ~$35 a good cleaner is well worth it.
2. Lube the conduit, get a good half gallon of lube down there with your cleaner/spreader or rag. Lube's cheap and will make the job a hundred times faster for $10 extra...
3. Get a good grip. If you don't own one, rent it. a good basket grip (NOT a chicago grip) is like a chineese finger torture doodad, it tightens as you pull but won't damage the cable, and is safe to pull with.
4. use a big pulley or proper roller block when pulling. The line should never touch the edge of that conduit, it will heat cut or damage something, and people WILL get hurt that way.
5. Lube while feeding on the other end. Brish on the lube on the other end.
6. Get feeders to slowly pay out the cable on the other end, not too much slack though, it gets messy that way, it relives a lot of strain on the pullers at the other end.
Trevor Farren
Metrotech Telecom Inc.
1. Clean the conduit. Use a rag tied to your rodder or jet line or a proper conduit scraper, at ~$35 a good cleaner is well worth it.
2. Lube the conduit, get a good half gallon of lube down there with your cleaner/spreader or rag. Lube's cheap and will make the job a hundred times faster for $10 extra...
3. Get a good grip. If you don't own one, rent it. a good basket grip (NOT a chicago grip) is like a chineese finger torture doodad, it tightens as you pull but won't damage the cable, and is safe to pull with.
4. use a big pulley or proper roller block when pulling. The line should never touch the edge of that conduit, it will heat cut or damage something, and people WILL get hurt that way.
5. Lube while feeding on the other end. Brish on the lube on the other end.
6. Get feeders to slowly pay out the cable on the other end, not too much slack though, it gets messy that way, it relives a lot of strain on the pullers at the other end.
Trevor Farren
Metrotech Telecom Inc.
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