I agree with Tim that’s what I am doing with all my towers in Virginia.
Sent from my iPhone
> On Sep 8, 2019, at 3:17 PM, Tim Duffy <k3lr@k3lr.com> wrote:
>
> Hello Ron:
>
> I think you are making a good choice with Phillystran for your tower
> installation. It is critical you follow all of the Phillystran manufacture
> instructions when you install it. The EHS comparison chart is very accurate.
> There is no reason to install larger sizes, however- you should install what
> the tower manufacture specifies for the installation you have. That is
> critical. If it is not in print for your tower, please contact them and get
> their engineering guidance. There is no reason to guess and there are no
> rules of thumb's when dealing with these installations. Your life depends on
> it! There are engineered solutions by the manufacture and you must follow
> those instructions 100%. Do it right!
>
> Use qualified professionals to install your tower, accidents happen (several
> this year already) and you do not want anything bad to happen to you or your
> friends.
>
> Good Luck and be safe!
>
> 73
> Tim K3LR
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Ron
> WV4P
> Sent: Sunday, September 8, 2019 12:02 PM
> To: Wayne Kline
> Cc: Tim Duffy; towertalk; jz73@verizon.net
> Subject: Re: [TowerTalk] Polygon Guy Rods
>
> Thanks for the great replies !
> I reckon I will err on the side of caution and use Phillystran.
> For the folks using it, do you go by the EHS Comparison chart ? ie: The
> HPTG4000I replaces 3/16 EHS and the HPTG6700Ireplaces 1/4"
> Or is there a rule of thumb to Upsize ? What size are most using on
> Rotating towers ? Thanks again, Ron, WV4P
>
>
>> On Fri, 6 Sep 2019 at 13:41, Wayne Kline <w3ea@hotmail.com> wrote:
>>
>> John,
>>
>>
>>
>> IMHO PhillyStran has it’s place in tower installations BUT you must
>> consider the site for abrasion. It and polyrod will fail in that
>> invroment.
>>
>>
>>
>> Even EHS 3/16 , ¼ and 5/16 will fail under fallen tree /limb contact…
>> Ask BGN or IPK At IPK’s QTH the PLP 1/4 “ guy grip was still wrapped
>> around the ROHN thimble BUT the EHS was pulled out and upon examining the
>> EHS the wrap twist was no longer that but pulled almost straight . Yes it
>> was a BIG tree 36” dia oak and contacted the top layer of guys mid way ,
>> snapping two legs of the R-25 ay 50 ft resulting in crushing the one
>> intact leg down ( read wrinkles in the crushed leg then bending it 160
>> DEG. Down. And the rest of the tower resting at a 60 deg angle. I assume
>> this is a worse case senero Tees and towers do not MIX
>>
>>
>>
>> Wayne W3EA
>>
>>
>>
>> PS yes we cut the remaining guys and let the tower fall with the weight
>> of the tree bolt cutters to the rescue
>>
>>
>>
>> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
>> Windows 10
>>
>>
>> ------------------------------
>> *From:* TowerTalk <towertalk-bounces@contesting.com> on behalf of Jon
>> Zaimes via TowerTalk <towertalk@contesting.com>
>> *Sent:* Friday, September 6, 2019 1:57:44 PM
>> *To:* 'Tim Duffy' <k3lr@k3lr.com>; 'Ron WV4P' <wv4ptn@gmail.com>;
>> 'towertalk' <TowerTalk@contesting.com>
>> *Subject:* Re: [TowerTalk] Polygon Guy Rods
>>
>> I had my first Phillystran failure here not long ago. It was one of the
>> guys
>> on my 160-meter (K3LR array!) vertical driven element, and broke when a
>> loblolly pine limb fell on it. The limb, which broke off and fell about 10
>> feet to hit the guy, later was weighed at about 100 pounds. The Philly had
>> been purchased in 1978 and used at four different QTH's over its 41 year
>> life. Phillystran's website says lifespan is 25 or more years; so maybe
>> practical lifespan is somewhere in between those numbers. Maybe even a new
>> piece would break if such a limb hit it.
>>
>> Phillystran also is susceptible to chafing if tree limbs come in contact
>> with it. I had used a number of pieces which originally were in the clear
>> when the towers were installed 20 years ago, but as trees grew limbs came
>> into contact and chafed through the outer sheathing. Once the inner Kevlar
>> is exposed to UV rays, it may break down. In addition to a major tree
>> trimming and removal this year to avoid such contact, I've also replaced
>> most of the Phillystran on my seven towers with EHS steel with insulators
>> at
>> non-resonant lengths.
>>
>> 73/Jon
>>
>> Jon P. Zaimes, AA1K
>> Tower climber for hire
>> http://www.aa1k.us/
>> Cell: 302-632-2353
>>
>> Reviews of AA1K tower work on eham website:
>> http://www.eham.net/reviews/detail/12922
>>
>> Hug your favorite tower every day, and always stay connected to it.
>>
>> -----Original Message-----
>> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Tim Duffy
>> Sent: Thursday, September 5, 2019 8:03 PM
>> To: 'Ron WV4P' <wv4ptn@gmail.com>; 'towertalk' <TowerTalk@contesting.com>
>> Subject: Re: [TowerTalk] Polygon Guy Rods
>>
>> I participated in a group buy of Polygon Rod in the late 1980s. Quite a
>> learning curve.
>>
>> Even UV stabilized is only good for about 10 years - then needs replaced.
>> Difficult to work with.
>>
>> I had one Polygon rod guy break mid span on my 40 meter tower (it was 5
>> years old). That was the end.
>>
>> Just finished this summer getting all of the Polygon rod replaced with
>> Phillystran on the tall towers at K3LR. Properly maintained and inspected
>> Phillystran with the appropriate preformed line grip terminations should
>> last 30 plus years - no breaks or surprises so far with Phillystran.
>>
>> 73
>> Tim K3LR
>>
>> -----Original Message-----
>> From: TowerTalk [mailto:towertalk-bounces@contesting.com
>> <towertalk-bounces@contesting.com>] On Behalf Of Ron
>> WV4P
>> Sent: Thursday, September 5, 2019 7:32 PM
>> To: towertalk
>> Subject: [TowerTalk] Polygon Guy Rods
>>
>> Is it still possible to do the group buys on the Polygon pultrusion
>> fiberglass rods ? Any Interest ? I have several towers going up soon and
>> could use some. Ron WV4P _______________________________________________
>>
>>
>>
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