Very timely post!
For years, I've had a 4 element 80 delta loop array suspended from a
catenary stretched between two 190 foot towers.
I used THHN when I built it, but with time, the insulation is coming off
the wire. I know that when I designed it, I had taken the velocity
factor into account WITH the PVC wire insulation.
Now, that I am losing my insulation, I have been looking for a better
alternative to the THHN wire. Is this it?
Can anyone comment on the difference in the insulating material? PVC
vs ??? And, maybe the difference in the dielectric constant f/u/w EZNEC?
This is my 'bread and butter' EU antenna.
Comments appreciated.
73 de Steve, NR4M
On 2/18/2020 7:15 AM, john@kk9a.com wrote:
Great post! I do not know the difference between PVC and XLPE,
perhaps someone on the list does. XLPE is rated to have good UV
resistance, whatever that means. I have never seen any damage to THHN
PVC however it certainly it would be nice to not have the clear outer
nylon coating when it is used outdoors for antennas and rotators.
John KK9A
Dick NY1E wrote:
In the spring I'm building new dipoles for 160, 80 & 40, instead of
using THHN I see Home Depot has XHHW #12 stranded, like THHN but
without the nylon jacket and it says its UV resistant. Has anyone used
it? It's a bit more expensive at $98/500' vs $65/500' but if it keeps
that nylon from hanging off the antennas....de Dick NY1E
Sent from Yahoo Mail on Android
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