Calculation method of wire and cable outer diameter
Usually check the table, in the cable samples or manual check.
You are talking about the calculation of the diameter of the calculation method please refer to GB / T marine cables please refer to IEC-350 and 353
Tell the truth like a three-core cable, five-core cable calculation is more complicated you math good painting geometric map can still be considered
(In accordance with the power cable, single-core cable sheath of the nominal thickness should not be less than 1.4mm, multi-core cable nominal thickness should be not less than 1.8mm), the thickness of the jacket, 2. On-line measuring sheath thickness: Sheath thickness = (circumference after extrusion of the jacket - circumference of the jacket) / 2π or sheath thickness = (circumference after extrusion of the jacket - before the jacket Circumference) × 0 .. Insulation thickness of the most thin point: Nominal value × 90% -0.14. Single core sheath the most thin point: Nominal value × 85% -0.15. Multi-core sheath thinnest point: Nominal value × 80% -0.26. Wire armor: Number of roots = {π × (inner sheath outer diameter + wire diameter)} ÷ (wire diameter × λ)
