POWER TRANSMISSION LINE

A)Overhead power transmission line has led to misunderderstanding on radars 
by reflecting echo. Vessels should be careful under bad weather conditions.

B)Least Vertical Clearance of power transmission line from sea level in 
maximum sag is 70 metres
    
c)Least Vertical Clearance between the highest point of all vessels passing through Strait
of Istanbul and the power transmission line in maxsimum sag should be 9 metres.  

D)Vessels with the vertical clearance equal to or more than 58 metres are not allowed to
pass through Strait of stanbul. Vessels with the vertical clearence from 54 metres to 58
metres can pass through the Strait of stanbul provided that they satisfy the conditions
determined by the administration.