What should be used to protect electric cables passing through holes in bulkheads, ribs, or firewalls?

Using a suitable grommet is essential for protecting electric cables that pass through holes in bulkheads, ribs, or firewalls. A grommet serves several critical functions in this scenario:

1. Protection from Abrasion: When cables travel through any type of hole or opening, they can rub against the sharp edges of the material surrounding the hole. A grommet provides a protective layer that prevents wear and tear on the cable insulation, which can lead to shorts or electrical failures.

2. Prevention of Strain: Grommets help to secure cables and maintain their position as they pass through openings. This reduces stress on the cables, especially in areas where they may be subjected to movement or vibrations.

3. Fire Safety: In areas like firewalls, where fire resistance is crucial, grommets can be designed to help prevent the spread of flames through cable pathways, thereby enhancing the overall safety of the electrical system.

Using other options, such as heat shrink tubing, wire looms, or electrical tape, while they have their uses in cable management and insulation, do not provide the specific protective features that grommets do in relation to passing through openings. Grommets specifically address the need for maintaining the