Hey - since we have someone here who seems to know something about the
topic I have a follow up question.

Are any of those threads meant for strength when pulling a cable through
conduit, walls, etc?  I'm thinking about the nylon that I find in a lot
of Cat5 cabling that I don't believe is a filler (cable isn't very
round), binder (cable doesn't need it for 4 pair), or ripcord (Cat5
shouldn't be stripped back more than an inch).

Thanks
Dan

Richard.Prosser@POWERWARE.COM wrote:

>Jon,
>There are a number of reasons for "strings"  & "Threads" to be placed
>inside cables.
>1. An ID thread - this identifies the manufacturer
>2. A year thread to identify year of menufacture. This should  dissolve in
>acetone (to distinguish it from the manufacturer ID.)
>3. Fillers, to make the cable nice and round if it is exposed to view.
>4. Binders to hold differnt groups (units) or bunches of wires/pairs
>together. This also enable pair identification in large cables by using
>different colours or marker tapes. Also, the cable may be wrapped overall
>to assist manufacture.
>5. A ripcord to aid removal of the cable sheath. In theory you just grap
>the cord with a pair of pliers and it will tear thrrough the sheath.
>
>I'm not sure these days what the requirement is for ID & Year threads, Most
>cables don't seem to use them so it may only be required on cable built to
>certain specifications.
>
>Richard P (ex cable engineer)
>
>
>
>
>
>I've spent this morning mostly terminating cat5e cable in krone blocks.
>Mind
>numbingly dull, it lead me to wonder why some cables have a cotton or nylon
>string in them? The only reason I can see for it is merely to irritate the
>user, but maybe there's a real purpose. Can anyone shed any light on it??
>
>Jon
>
>--
>http://www.piclist.com hint: PICList Posts must start with ONE topic:
>[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads