Maximum Transmission Line Span
Maximum Transmission Line Span
(OP)
Is there a code or requirement depicting how long a transmission span can be?
In particular for a 345kV tranmission line?
In particular for a 345kV tranmission line?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
Maximum Transmission Line Span
|
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
Just to clarify, you are referring to the span and not the transmission line length itself. Correct?
My question was regarding the span between two supports and how far can a transmission span go without requiring another support.
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
The two lines are invisible, but join the visible rights of way. One line makes a 90 degree turn up hill prior to crossing. The other crosses much lower without turning north first. Equivalent height mid-span, conductor size, and towers. I'm guessing the lower line may be using one of the new low sag cores. From the scale, it looks like it exceeds 8000.
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
Confirmed this time.
RE: Maximum Transmission Line Span
RE: Maximum Transmission Line Span
Only us engineers would find it to be cool :)
RE: Maximum Transmission Line Span
http://en.wikipedia.org/wiki/Ameralik_Span
When we recently replace a 6200ft span, the only electrical code requirement that caused us grief was the NESC conductor tension limit of 25% rated tensile strength. The limit is a decent rule of thumb to prevent vibration damage in typical spans. Although we had an extensive damper system designed, we ended up having to use a stronger cable just to meet the NESC requirement.
http
RE: Maximum Transmission Line Span
What do they do with all that power in Greenland. There must be a mine some where nearby.
http://en.wikipedia.org/wiki/Ameralik_Span