Re: CAT5e cable

On Wed, 07 May 2025 19:59:17 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:

On Wed, 7 May 2025 23:06:50 -0000 (UTC), David Lesher
<wb8foz@panix.com> wrote:
>

Jeff Liebermann <jeffl@cruzio.com> writes:

Outdoor cable usually mean UV resistant. It can also be direct burial
cable where the space between the wires and outer jacket are filled
with silicon slime.  It does a good job of keeping the water out of
the cable, but does make a mess. 

>
Beware using filled cable indoors. That gel may well be flammable.
There's something in the Code re: that.

>
The gel is NOT flammable:
>
"Ethernet Cable Gel Filling Flame Test!"
<https://www.youtube.com/watch?v=adXRPdnETRU>

After posting that, I went searching for what the gel formulation.  I
never did find anything authoritative, but did the mention in the 2nd
video below that it's a wax and mineral oil mix.  When heated, mineral
oil vapors will burn (135°C / 275°F flash point) and is considered
mildly flammable).
<https://cameochemicals.noaa.gov/chemical/12191>
No clue about the type of wax used, so I can't determine if it's
flammable.

The grease needs to be slimy to plug any air gaps which might cause
water to crawl up the air gaps using capillary action.

I blundered across these two videos demonstrating how to properly
terminate CAT6 direct burial shielded cable:

"How To: Terminate Shielded Direct Burial Ethernet Cable"
<https://www.youtube.com/watch?v=s0NBL7ezMeE>  (21:37)

"Cat6 Gel Filled Direct Burial Ethernet: Termination and Best
Practices"
<https://www.youtube.com/watch?v=001SFnxX_9o>  (14:17)

The termination tool shown in the videos seem to be useful.  $60.
<https://www.youtube.com/watch?v=bJtaX_PK1FY>  (10:25)
<https://www.truecable.com/products/truecrimp-all-in-one-pass-through-rj45-crimp-tool-v3>


--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558