Vibration Resistant Cable

Abstract

A vibration resistant cable having a first conductor and a second conductor. The second conductor may be twisted around the first conductor at a lay length configured to cause a locking force between the first conductor and the second conductor. The locking force may be configured to prevent relative movement of the first conductor and the second conductor that may result in bags in the vibration resistant cable. The lay length may be predetermined or may vary a predetermined amount per unit of length of the vibration resistant cable. The lay length may be c 1 d+c 2 , where d may be the diameter of the first conductor and the second conductor and c 1 and c 2 may be constants configured to obtain the locking force to eliminate bags in the vibration resistant cable and provide Aeolian vibration dampening in the vibration resistant cable.

1 .- 20 . (canceled)  
     
     
         21 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d, the second conductor being twisted around the first conductor at a lay length determined as a function of the diameter d and optimized to obtain a desired locking force between the first conductor and the second conductor.    
     
     
         22 . The vibration resistant cable of  claim 21 , wherein the function comprises a linear function.  
     
     
         23 . The vibration resistant cable of  claim 22 , wherein the lay length is determined as the function of c 1 d+c 2 , where c 1  and c 2  are constants configured to optimize the lay length to obtain the desired locking force.  
     
     
         24 . The vibration resistant cable of  claim 21 , wherein the desired locking force is configured to reduce bags in the vibration resistant cable.  
     
     
         25 . The vibration resistant cable of  claim 21 , wherein the desired locking force is configured to allow some relative movement between the first conductor and the second conductor to provide Aeolian vibration dampening in the vibration resistant cable.  
     
     
         26 . The vibration resistant cable of  claim 25 , wherein the Aeolian vibration dampening is provided when a power line using the vibration resistant cable is built to at least one of the National Electric Safety Code (NESC) standards for heavy loading district minimum design conditions, medium loading district minimum design conditions, or light loading district minimum design conditions.  
     
     
         27 . The vibration resistant cable of  claim 21 , wherein the desired locking force is configured to: 
 reduce bags in the vibration resistant cable, and    allow some relative movement between the first conductor and the second conductor to provide Aeolian vibration dampening in the vibration resistant cable.    
     
     
         28 . The vibration resistant cable of  claim 27 , wherein the Aeolian vibration dampening is provided when a power line using the vibration resistant cable is built to at least one of the National Electric Safety Code (NESC) standards for heavy loading district minimum design conditions, medium loading district minimum design conditions, or light loading district minimum design conditions.  
     
     
         29 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d, the second conductor being twisted around the first conductor at a lay length calculated based upon the diameter d and optimized to obtain a desired locking force between the first conductor and the second conductor.    
     
     
         30 . The vibration resistant cable of  claim 29 , wherein the lay length is calculated as a linear function of the diameter d.  
     
     
         31 . The vibration resistant cable of  claim 29 , wherein the desired locking force is configured to reduce bags in the vibration resistant cable.  
     
     
         32 .- 34 . (canceled)  
     
     
         35 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d, the second conductor being twisted around the first conductor at a lay length determined based upon the diameter d and optimized to obtain a desired locking force between the first conductor and the second conductor.    
     
     
         36 . The vibration resistant cable of  claim 35 , wherein the lay length is determined as a linear function of the diameter d.  
     
     
         37 . The vibration resistant cable of  claim 35 , wherein the desired locking force is configured to reduce bags in the vibration resistant cable.  
     
     
         38 . A vibration resistant cable comprising: 
 a first conductor having a diameter; and    a second conductor having the diameter, the second conductor being twisted around the first conductor at a lay length determined based upon the diameter and a plurality of constants associated with a desired locking force between the first conductor and the second conductor.    
     
     
         39 . The vibration resistant cable of  claim 38 , wherein the lay length is determined based upon an equation that establishes a relationship between the lay length, the diameter, and the plurality of constants.  
     
     
         40 . The vibration resistant cable of  claim 39 , wherein the equation is a linear equation.  
     
     
         41 . The vibration resistant cable of  claim 39 , wherein the equation determines the lay length as a function of c 1 d+c 2 , where c 1  and c 2  are constants configured to optimize the lay length to obtain the desired locking force.  
     
     
         42 . The vibration resistant cable of  claim 38 , wherein the desired locking force is configured to reduce bags in the vibration resistant cable.  
     
     
         43 . A method for making a vibration resistant cable, the method comprising: 
 receiving a first conductor having a diameter d;    receiving a second conductor having the diameter d;    identifying a lay length for the vibration resistant cable that is a function of the diameter d, the lay length configured to obtain a predetermined locking force between the first conductor and the second conductor; and    twisting the second conductor around the first conductor at the identified lay length.    
     
     
         44 . The method of  claim 43 , wherein identifying the lay length comprises identifying the lay length based upon a linear relationship with the diameter d.  
     
     
         45 . The method of  claim 43 , wherein identifying the lay length comprises identifying the lay length as a function of c 1 d+c 2 , where c 1  and c 2  are constants configured to optimize the lay length to obtain the predetermined locking force.  
     
     
         46 . The method of  claim 43 , wherein identifying the lay comprises identifying the lay length to obtain a predetermined locking force configured to reduce bags in the vibration resistant cable.  
     
     
         47 . The method of  claim 43 , wherein identifying the lay length comprises identifying the lay length to obtain a predetermined locking force configured to allow some relative movement between the first conductor and the second conductor to provide Aeolian vibration dampening in the vibration resistant cable.  
     
     
         48 . The method of  claim 47 , wherein identifying the lay length comprises identifying the lay length to provide Aeolian vibration dampening when a power line using the vibration resistant cable is built to at least one of the National Electric Safety Code (NESC) standards for heavy loading district minimum design conditions, medium loading district minimum design conditions, or light loading district minimum design conditions.  
     
     
         49 . The method of  claim 43 , wherein identifying the lay comprises identifying the lay length to obtain a predetermined locking force configured to reduce bags in the vibration resistant cable and to provide sufficient relative movement between the first conductor and the second conductor to provide Aeolian vibration dampening in the vibration resistant cable.  
     
     
         50 . A method for making a vibration resistant cable, the method comprising: 
 receiving a first conductor having a diameter d;    receiving a second conductor having the diameter d; and    twisting the first conductor and the second conductor together at a lay length identified based upon the diameter d, the lay length configured to cause a locking force between the first conductor and the second conductor to reduce relative movement of the first conductor and the second conductor that would result in bags in the vibration resistant cable.    
     
     
         51 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d and twisted around the first conductor at a lay length determined as a function of the diameter d and configured to cause a locking force between the first conductor and the second conductor to reduce relative movement of the first conductor and the second conductor that would result in bags in the vibration resistant cable.    
     
     
         52 . The vibration resistant cable of  claim 51 , wherein the function is linear.  
     
     
         53 . A method for making vibration resistant cables, the method comprising: 
 forming a first cable comprising a first conductor and a second conductor, the first and second conductors having a first diameter, and the first conductor and the second conductor being twisted together at a first lay length to obtain a predetermined locking force between the first conductor and the second conductor; and    forming a second cable comprising a third conductor and a fourth conductor, the third and fourth conductors having a second diameter less than the first diameter, and the third conductor and the fourth conductor being twisted together at a second lay length less than the first lay length to obtain the predetermined locking force between the third conductor and the fourth conductor.    
     
     
         54 . A method for providing vibration resistant cables, the method comprising: 
 providing a first cable comprising a first conductor and a second conductor, the first and second conductors having a first diameter, and the first conductor and the second conductor being twisted together at a first lay length to obtain a predetermined locking force between the first conductor and the second conductor; and    providing a second cable comprising a third conductor and a fourth conductor, the third and fourth conductors having a second diameter less than the first diameter, and the third conductor and the fourth conductor being twisted together at a second lay length less than the first lay length to obtain the predetermined locking force between the third conductor and the fourth conductor.    
     
     
         55 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d, the second conductor twisted around the first conductor at a lay length determined as a function of the diameter d and configured to reduce relative movement of the first conductor and the second conductor that would result in bags in the vibration resistant cable.    
     
     
         56 . The vibration resistant cable of  claim 55 , wherein the function comprises a linear function.  
     
     
         57 . The vibration resistant cable of  claim 55 , wherein the lay length is further configured to cause a locking force between the first conductor and the second conductor to reduce relative movement.  
     
     
         58 . The vibration resistant cable of  claim 55 , wherein the first conductor and the second conductor each comprise a respective plurality of strands.  
     
     
         59 . The vibration resistant cable of  claim 55 , wherein the lay length is less than 8 feet.  
     
     
         60 . The vibration resistant cable of  claim 55 , wherein the lay length is optimized to obtain a desired locking force between the first conductor and the second conductor, the desired locking force being configured to allow some relative movement between the first conductor and the second conductor to provide Aeolian vibration dampening in the vibration resistant cable.  
     
     
         61 . A vibration resistant cable comprising: 
 a first conductor having a diameter d; and    a second conductor having the diameter d,    wherein the first conductor and the second conductor are twisted together at a lay length determined as a function of the diameter d.    
     
     
         62 . The vibration resistant cable of  claim 61 , wherein the lay length is determined to reduce the formation of bags in the vibration resistant cable.  
     
     
         63 . The vibration resistant cable of  claim 62 , wherein the lay length is less than 8 feet and is determined to reduce the formation of bags during installation of the vibration resistant cable.  
     
     
         64 . The vibration resistant cable of  claim 61 , wherein the function comprises a linear function.  
     
     
         65 . A vibration resistant cable comprising: 
 a first conductor having a predetermined thickness; and    a second conductor having the predetermined thickness, wherein the second conductor is twisted around the first conductor at a lay length determined as a function of the predetermined thickness and configured to reduce relative movement of the first conductor and the second conductor that would result in bags in the vibration resistant cable.    
     
     
         66 . The vibration resistant cable of  claim 65 , wherein the function comprises a linear function.  
     
     
         67 . The vibration resistant cable of  claim 65 , wherein the lay length is less than 8 feet.  
     
     
         68 . The vibration resistant cable of  claim 21 , wherein the lay length is less than 8 feet.  
     
     
         69 . The vibration resistant cable of  claim 29 , wherein the lay length is less than 8 feet.  
     
     
         70 . The vibration resistant cable of claim  32 , wherein the lay length is less than 8 feet.  
     
     
         71 . The vibration resistant cable of  claim 38 , wherein the lay length is less than 8 feet.  
     
     
         72 . The method of  claim 43 , wherein identifying the lay length comprises identifying the lay length comprising less than 8 feet.  
     
     
         73 . The method of  claim 50 , wherein twisting the first conductor and the second conductor together at the lay length comprises twisting the first conductor and the second conductor together at the lay length being between 8 feet and 6 feet.  
     
     
         74 . The vibration resistant cable of  claim 51 , wherein the lay length is between 8 feet and 3 feet.