CABLE DESIGN AND MANUFACTURE 



191 



the same direction of lay of the major components of a cable was very 

 important in minimizing kinking and knuckling. In addition, other lab- 

 oratory tests pointed the direction for the adoption of new materials and 

 techniques in the manufacture of these cables. These and subsequent 

 improvements in materials and manufacturing techniques were included 

 in the transatlantic cable design. 



Since the electrical characteristics of a cable have a direct bearing on 

 the overall system design and performance, considerable emphasis was 

 placed on this phase of the design of the transatlantic cable. The size of 



COAXIAL< 



PROTECTION 

 AND STRENGTH 



< 



COPPER CENTER WIRE 



3 COPPER 

 SURROUND TAPES 



INSULATION 

 POLYETHYLENE COMPOUND 



6 COPPER RETURN TAPES 



COPPER TEREDO TAPE 



TREATED COTTON TAPE 



JUTE BEDDING WITH 

 BINDING STRING 



24 COTTON COVERED 

 ARMOR WIRES 



JUTE LAYER 



OUTER JUTE LAYER 



Fig. 1 — Structural features of the deep water type of cable. 



