56G 



THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1954 



Insufficient flood, bottom sketch, alters the dielectric from polyethylene 

 plus some flood, to all polyethylene. The capacitance is decreased. 



A typical plot of points and a calibration curve are shown in Fig. 8. 

 Each of the three cable sizes measured revealed a wide band of plot 

 points. In each curve the points were more dense toward the left side of 



0.15 



0.05 



CAPACITANCE IN ///^ F 

 1.30 1.25 1.20 1.15 



-40 



-30 



-20 



20 



30 



40 



-10 10 



RECORDER SCALE 



Fig. 8 — - Measured points of sheath thickness versus recorder readings and 

 developed calibration curve. 



