What should you use to secure new or repaired wire to the harness?

What should you use to secure new or repaired wire to the harness?

• A. Lacing tape
• B. Electrical tape
• C. Heat shrink tubing
• D. Cable ties

Answer: (A)

Securing new or repaired wire to a harness requires a binding method that holds the bundle firmly without creating sharp edges, won’t leave adhesive residue, and can withstand aircraft vibration and temperature changes. Lacing tape is designed for bundling and attaching wires along a harness. It provides even tension and distributes stress across the bundle, can be removed and replaced during maintenance, and doesn’t rely on sticky adhesive that can degrade or contaminate insulation. This makes it ideal for maintaining the integrity of the harness over time and allows easy inspection of the wires beneath. Electrical tape is mainly an insulator and its adhesive can dry out or creep in heat, leading to loosening and potential movement that could abrade conductors. Heat shrink tubing is excellent for insulating and protecting individual splices or small sections, but it isn’t practical for securing an entire wire run to a harness. Cable ties can secure bundles but are more prone to causing abrasion, slipping in vibration, and complicating inspection and replacement compared to lacing.

Securing new or repaired wire to a harness requires a binding method that holds the bundle firmly without creating sharp edges, won’t leave adhesive residue, and can withstand aircraft vibration and temperature changes. Lacing tape is designed for bundling and attaching wires along a harness. It provides even tension and distributes stress across the bundle, can be removed and replaced during maintenance, and doesn’t rely on sticky adhesive that can degrade or contaminate insulation. This makes it ideal for maintaining the integrity of the harness over time and allows easy inspection of the wires beneath.

Electrical tape is mainly an insulator and its adhesive can dry out or creep in heat, leading to loosening and potential movement that could abrade conductors. Heat shrink tubing is excellent for insulating and protecting individual splices or small sections, but it isn’t practical for securing an entire wire run to a harness. Cable ties can secure bundles but are more prone to causing abrasion, slipping in vibration, and complicating inspection and replacement compared to lacing.