Transposing

Transposing

Transposing Pitch
The practical winding diameter of CTC depends on the pitch of the cable.  The transposition pitch of CTC is designed to enable the cable to be easily wound on the desired diameter. The transposing pitch is the distance between transpositions and will vary with the width of the bare wire. The pitch will be less than the value of 6πW, where "W" represents the bare wire width. The minimum pitch is 8W or 1.85” (47mm).

Transposing Lay
The transposing lay is the distance over which a film coated wire resumes its original position in the cable. It is the pitch multiplied by the number of conductors and must be less than the circumference of the smallest winding diameter.

The transposing lay can be varied to provide a cable that meets customers winding requirements.

The minimum winding diameter D is calculated by the formula:

D

=

 Lay/π 

 
 

Where

Lay

=

P x N x W
 

and

P

=

A number from 8 to 18
   

N

=

Number of conductors
   

W

=

Conductor width