FIGURE 9.--KELLEMS GRIPS ATTACHED TO CAMERA CABLE 



AND ACCESSORY LIGHTING CABLE. 



mended, but a serious cut which allows the 

 passage of salt water along the conductors 

 renders the cable unfit for use. A damsiged 

 cable may be repaired by cutting away a 

 considerable part of it, until all the wet 

 cable is removed, and then splicing the ends 

 together. It has been our experience that 

 these splices are often unsatisfactory in 

 operation, even though done in a most care- 

 ful and workmanlike way. It is advisable 

 to discard a cable that is defective — an 

 expensive procedure, since the cable costs 

 about $1.25 per running foot. 



Abrasion results in the ssune sort of 



failures as cuts. Abrjision damage can be 



prevented only by careful handling of the 

 cable. 



will occur which may result in breakage of 

 one or more of the conductors. This prob- 

 lem quite often develops at the connector. 

 Steel-core cable is much more susceptible 

 to kinking damage than is standard fiber- 

 core cable. 



3. Excessive strain . 



This may result in breakage of the 

 conductors or separation of the solder 

 joints at the connecting pins. In order to 

 minimize the strain at the joints, we have 

 used a device called a "Kelleras grip" (fig. 

 9), Other than the use of such devices, 

 only the exercise of extreme caution and 

 advance consideration of specific operating 

 conditions will minimize these problems. 



2. Kinking of the cable . 



Care should be taken to prevent sharp 

 bends wheni handling the cable, or kinks 



4. Fouling of the cable . 



As previously pointed out, one of the 

 greatest problems encountered in using the 



11 



