The wiring harness processing engineering and technical team mainly includes: product size drawing, product BOM details and usage, and mechanical and physical properties of product raw materials in customer drawing design. The mechanical and physical properties of wiring harness processing mainly include the number of bending times of raw materials, terminal tension test and resistance value of raw materials. The number of bending times and terminal tension test can refer to the wiring harness processing documents of Heling Industry. Heling Industrial wiring harness processing briefly talks about how to design the resistance value of raw materials in drawing design.
In the design of wiring harness processing drawings, the wire impedance is mainly related to the resistivity, cross-sectional area and length of the conductor and insulator. The insulation impedance and conduction impedance are calculated according to the resistance law R=PL/S.
1. Wire materials are generally divided into bare copper and tinned copper wire. At a constant temperature of 20°C, the resistivity of bare copper is 0.0178Ω mm²/m, and the resistivity of tinned copper wire is 0.0172Ω mm²/m.
2. The outer sheath of the wire is generally made of PVC with a resistivity of 108Ω*m.
3. Calculate the on-resistance and insulation resistance of the wire according to the conductor area of the wire processed according to customer requirements.
4. The terminal harness technical team must clearly define the terminal tension during the design drawing process.
Heling Industrial Wiring is an innovative enterprise focusing on the design and manufacture of connectors and wiring harness solutions. Its main products are divided into the following categories:
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