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Aerial Taps

Aerial Taps

Aerial Taps

(OP)
So I'm fresh out of school and learning the transmission trade.  My boss is on vacation.  I'd like to come up with a solution before he gets back.  I've been working on a project where a 115KV line on H structures must go under a 161 KV line and then over a bridge at a 90 degree angle and 40' higher than the ground the tower will built on.  I have never heard of or seen a situation similar.  The current configuration is two dead ends at right angles that are aerially taped, but the massive bridge does not currently exist.  I must significantly raise one set of the towers.  To get the line over this new bridge I have to figure out a way to get one section low and one high, but the difference is 40'!  Has anyone heard of a 40' tap?  How do I figure out if this is ok?  I can't find regulations specifically concerning taps in REA or TVA.  My concern is adding a significant load to the insulator on the top part of the tower.  I believe blow out would not be a factor if there is very little slack, but that adds quite a load.  Is there another solution?  Maybe eliminate the aerial tap configuration and jumper 40' up a new tower somehow? I would simply like someone to show me a similar problem and how it was solved. Drawings would be fantastic. Thanks
See str. 5803 and 5804 in the attached drawing

RE: Aerial Taps

If there's no limitation on how tall Str. 5804 can be, I would consider running pipe bus on post insulators to make up your verical height difference.  See photo attached of a similar installation.  It will be a pretty heavy load at the top.

At first I thought about setting 5804 at a 45-degree angle spanning the east-west portion of the circuit, but you are awefully close to the railroad track already.

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