Cable-Tying with Waxed Twine
Ian Mason
nanog at ian.co.uk
Thu Jan 25 15:47:32 UTC 2007
On 25 Jan 2007, at 04:41, Larry Beaulieu wrote:
>
>
>> The other thing I found interesting; The use of Zip Ties on Copper
>> Cabling
>> is frowned upon by BICSI. Velcro preferred.
>>
>> Something to do with the compression on a twisted-pair cable
>> caused by
>> over-tight nylon cable ties screwing with their twist rates, and thus
>> changing their Crosttalk characteristics...
>
> Yep.
>
> For starters, the stuff that Dan Mahoney is looking for is properly
> known as
> waxed linen lacing cord. In a past life I used to order the stuff
> made
> by Ludlow Textiles through Graybar, their part # back then was
> 89039323. It's
> not always in stock in individual stores.
>
[snip]
>
> Lacing is a lot slower than using platic ties, and doing it is
> rough on your
> fingers. If you're lucky you know a data tech who can show you how
> to do it
> properly, it's really not something that you can just describe in
> writing.
The UK avionics industry used to (and may still) use thin PVC tube
for lacing
- kind of like thin insulated wire without the wire. It's got several
advantages:-
1) Much kinder on the fingers
2) It stretches, which:-
a) minimises the risk of overtightening it
b) the elasticity keeps it snug, it doesn't work loose over time
as easily
3) it doesn't rot
And yes, I am old enough to know how to do it. But I disagree with
Randy (what's new)
I'm more of a Techosaur than a Telephant.
Ian
More information about the NANOG
mailing list