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Old 05-29-2009, 09:13 AM   #16
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Black X on Yellow Card on Power Line


Buried treasure. X marks the spot.
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Old 05-29-2009, 10:19 AM   #17
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Black X on Yellow Card on Power Line


...then that would be the "non-secret" kind, right?
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Old 06-01-2009, 10:05 AM   #18
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Black X on Yellow Card on Power Line


I may have gotten the real answer.

I asked the lineman's forum on another site and they said it's a "fly marker" for helicopters that are flying down rural lines to check them.

The X is a few spans before the cross wire to give him warning not to fly into the crossing circuit. This also explains why the marker sometimes faces away from the road... it's not for people on the ground.
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Old 06-02-2009, 07:13 PM   #19
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Black X on Yellow Card on Power Line


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Originally Posted by AndrewF View Post
I've always wanted to know why some poles have a metal galvanized 1/2 pipe on them, go up about 6' then have an angled cap.

I'll see if I can get a photo of it.
Now that we got the answer to the yellow X.

Here are the photos of my question. Anyone know what these are for?
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Black X on Yellow Card on Power Line-img_1041.jpg   Black X on Yellow Card on Power Line-img_1043.jpg   Black X on Yellow Card on Power Line-img_1044.jpg   Black X on Yellow Card on Power Line-img_1045.jpg  
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Old 06-02-2009, 07:51 PM   #20
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Black X on Yellow Card on Power Line


Andrew,

I've noticed those too. I always thought that they were to stiffen/repair the pole where it enters the ground. They always seem to be made of thicker steel than the pipes that protect wiring, and they have thick straps going around the pole to boot.

Plus as you pointed out, they're short and wouldn't provide great protection for wiring.
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