poly-alkene and polyvinylidene fluoride. The majority of these have 

 been spliced using the Tygon tubing technique. Some earlier attempts 

 using a slightly different technique failed because of two problems. 

 First, when the butt splice was crimped, the crimping tool tore the 

 Tygon tubing, allowing a ground path to exist. Second, there was sea- 

 water trapped inside the splice, and the splice failed due to corrosion. 



Using the improved techniques, at -sea splices were made at depths 

 between 50 and 100 feet (16 and 31 meters) by divers. The underwater 

 splices, for both power and data conductors, have been continuously in 

 operation at the site for 4 months with no failures. 



CONCLUSIONS 



As shown by the results of the testing program CEL has developed a 

 technique which allows underwater repair of both data and power electrical, 

 single or multiconductor , cables. These repairs can be reliable accom- 

 plished by divers having a minimum amount of training, at any diver depth, 

 using off-the-shelf materials. 



