4G6 



SUBMARINE CABLE LAYING AND BEPAirJNG. 



Let the mean worked out as above at the A end = R and the 

 mean at the B end = Ei. Then by the free overlap formula, 

 the distance of fault from the A end is : — 



L + R-Ei 



The following example was taken on an actual cable fault :- 

 True CR of line = 1,42-2 ohms 

 To scale zero. Zinc to line. Bridge 1,000/1,000, 



