Which procedures are essential for preventing chafing?

Proper routing or installation of wiring harnesses or bundles is crucial for preventing chafing because it ensures that the wiring is positioned in a way that minimizes friction against surrounding surfaces. When wiring is not carefully routed, it may come into contact with edges, components, or other wiring, which can lead to wear and eventual damage over time due to movement and vibration during flight operations.

This approach involves organizing and securing cables so that they avoid sharp edges and turbulent airflow paths, which are common sources of abrasion. By ensuring that the wiring harnesses are routed away from areas where they might rub against other objects or are subject to tensile forces, you can significantly reduce the likelihood of insulation damage and subsequent electrical failures.

While regular inspection and cleaning, the use of protective covers, and ensuring proper voltage levels are important practices for overall aircraft maintenance and safety, they do not directly address the mechanical aspect of routing that primarily contributes to chafing prevention. Proper installation is the first line of defense against the wear and tear that can compromise the integrity of wiring systems.