IP Library › Patent Application 12885604
Patent Application
App. No. 12/885,604

Vibration Resistant Cable

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Quick Facts
Patent No.
US None
App. No.
12/885,604
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 maybe 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.

Claims (60)

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 first conductor and the second conductor being twisted about an axis 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 21 , 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 provide sufficient 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 load district minimum design conditions, or light load 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

provide sufficient 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 load district minimum design conditions, or light load 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 first conductor and the second conductor being twisted about an axis 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 . 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 identified as a function of the diameter d and optimized to obtain a desired locking force between the first conductor and the second conductor.

33 . The vibration resistant cable of claim 32 , wherein the function is a linear function.

34 . The vibration resistant cable of claim 32 , wherein the desired locking force is configured to reduce bags in the vibration resistant cable.

35 . A vibration resistant cable comprising:

a first conductor having a diameter d; and

a second conductor having the diameter d, the first conductor and the second conductor being twisted about an axis 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 first conductor and the second conductor being twisted about an axis at a lay length determined based upon the diameter d 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, diameter d, 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 first conductor and the second conductor about an axis 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 desired locking force.

46 . The method of claim 43 , wherein identifying the lay length for the vibration resistant cable that is the function of the diameter d, the lay length configured to obtain the predetermined locking force comprises identifying the lay length wherein the predetermined locking force is configured to reduce bags in the vibration resistant cable.

47 . The method of claim 43 , wherein identifying the lay length for the vibration resistant cable that is the function of the diameter d, the lay length configured to obtain the predetermined locking force comprises identifying the lay length wherein the predetermined locking force is configured to provide sufficient 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 for the vibration resistant cable that is the function of the diameter d, the lay length configured to obtain the predetermined locking force comprises identifying the lay length 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 load district minimum design conditions, or light load district minimum design conditions.

49 . The method of claim 43 , wherein identifying the lay length for the vibration resistant cable that is the function of the diameter d, the lay length configured to obtain the predetermined locking force comprises identifying the lay length wherein the predetermined locking force is 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.