On the professional problems of cable formation.

For example, for cables with specifications of 10* 1.5, 10* 1.0, 10*2.5, the mold size for cable molding is calculated as: (external diameter of insulation core × 2 )× 4./kloc-.

The professional name should be pitch diameter ratio, which means the ratio of pitch to outer diameter of cable. When the multi-core cable is finished, the pitch-diameter ratio specified in the general standard shall not be greater than a certain value or a certain range. If it is too large, the cable will come loose, which is not conducive to the production of the next process or the installation and laying in the future!

The following table shows the arrangement structure of insulated wire cores after laying multi-core cables: 23451+61+72+83+94+105+1+6+122. 82+8+ 14+203+9+ 15+2 14+ 10+ 16+22 1+6+ 12+ 18+24