Correctly selected Wiring Harness protection materials can significantly reduce wear, water ingress, abnormal noise and later repairs.Don't just look at the unit price when selecting a model. It is recommended to make a comprehensive judgment from the three aspects of "environment + space + assembly process".
1. Tape: used for bandaging, noise reduction and local wear protection
Common ones include PVC tape, fabric tape, flannel tape, etc.PVC has low cost and is suitable for general bandaging; fabric/velvet is more wear-resistant and has a certain noise reduction effect, and is suitable for interiors and areas prone to friction.Note that different tapes have great differences in temperature resistance, flame retardancy and viscosity.
2. Corrugated pipe: used for external protection and wiring forming
The bellows is wear-resistant and extrusion-resistant, and is suitable for environments such as the engine compartment and near the chassis.When selecting, pay attention to the inner diameter, opening/closing form, temperature resistance level and fixing method; a bending radius needs to be reserved at the corners to avoid cracking caused by pulling.
3. Braided network tube: used for flexible wear resistance and shielding
Braided mesh tube is soft and conformable, making it suitable for areas where space is tight and a good appearance is required. It is also often used in conjunction with shielding structures.The disadvantage is that the protection against sharp edges is not as good as that of corrugated pipes. It is recommended to fix the ends with cable ties/tape.
4. Heat shrink tube: used for end sealing, stress relief and waterproofing
Ordinary heat shrink tubing is suitable for insulation and marking; adhesive heat shrink tubing is more suitable for end waterproofing and reinforcement.During use, the heating temperature and time must be controlled to avoid heat damage to the wire or connector shell.
5. A simple selection idea
Interior noise reduction: flannel/fabric tape; engine compartment and chassis: mainly corrugated pipes; compact and bendable areas: braided mesh tubes; end waterproofing and stress relief: glued heat shrink tubes.
Conclusion
Materials are only the foundation. What really affects the lifespan is the wiring path, fixed point design and assembly consistency.It is recommended to verify wear points at the prototype stage and formulate operating standards for key locations.
Statement: This article is a summary of material selection ideas. Specific material grades and certification requirements are subject to project specifications.