THE CABLE SHIP ON EEPAIES. 



281 



The nautical position of the splice 

 is subsequently marked on the cable 

 chart with the date attached ; but the 

 electrician also requires to know the 

 distance of the position from the shore 

 as measured along the cable, which is 

 a different thing. This he finds by a 

 resistance test of the conductor before 

 the new end is spliced on, the man on 

 shore earthing cable during test. After 

 the result is corrected for temperature 

 of sea and perhaps checked by a return 

 test from shore while ship earths, the 

 distance of the position in knots from 

 shore is obtained by dividing the result 

 in ohms by the number of ohms to the 

 knot at standard temperature, which 

 is known. 



The arrangements for slipping the 

 finished splice overboard depend upon 

 whether paying-out is to be done over 

 the stern or the bows. When it is 

 intended to pay out over stern, the 

 end of cable in tank before splicing is 

 led aft between a set of clamps, known 

 as the friction table, over drum, under 

 dynamometer pulley and over stern 

 sheave, whence it is passed, as shown 

 in Fig. 168, outside ship and brought 

 up on board again over one of bow 

 sheaves. When a sufficient length for 

 splicing is hauled on board the cable is 

 stoppered at bows, and the splice com- 

 pleted in the manner described. The 

 end of the other part of the cable is 

 similarly stoppered, and these fixed 

 stoppers at the bow baulks are used to 

 slip or ease away the cable. 



When arranged as described for pay- 

 ing out over stern the splice forms a 



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