The design logic of Coiled Cable

Coil Cable Design, Manufacturing, Length Calculation and Precautions   1. What is a Coiled Cable ?   A Coiled cable, also known as a retractable coiled cord or spiral cable, is a type of electrical cable that can stretch and retract like a Coils. The prototype of the coil cable is actually a straight cable. The straight cable is wound around a fixed-size jig rod by winding, and the clamps on both sides are used to clamp the wire. Then it is put into the oven and baked for a certain period of time. It is taken out to form a coil cable.   2. Calculating the Real Length of a Coiled Cable     1. Determine the Structure:   Understand the number of coiled sections and straight sections that make up the Coiled cable.     2. Measure the Coil Parameters:     Coil length: we need to be clear the coiled part length, from one pc coiled cable L=350mm   Coil ID : Measure the coiled part OD=15mm this parameter determines the fixture stick’s OD   Coil OD: Measure the coiled part OD=25mm   Cable OD: Measure the cable OD5.0mm   Then we can work out the cable coiled part how many coils. Use the coiled part length/Wire OD 350/5.0=70coils   Counting 1 coil length = πD= 3.14 X (25mm-5.0mm)=62.8mm (‘cause we can’t use the max OD to count the Circumference )   1 coil 62.8mm X 70 coils = 4396mm+the both ends lengths is the one pc cable real length   Note that the measurement method is relatively simple and intuitive but may have some errors. The formula calculation method requires accurate measurement of the structural parameters of the Coiled cable, and the calculated result is only an approximation. In practical calculations, choose the appropriate method based on the specific situation.       4. The...