What is the purpose of a feeding tube in cable installations?

The purpose of a feeding tube in cable installations is to prevent cable damage. When cables are run through tight spaces or sharp bends, there's a risk that they can become kinked, pinched, or otherwise damaged during installation. A feeding tube provides a protective channel that ensures the cable can be installed smoothly without being compromised by friction or physical stress. This is particularly important in environments where cables might be subjected to environmental factors or mechanical impacts.

The correct answer highlights the protective role of the feeding tube, which is crucial for maintaining the integrity of the cable. Proper handling and installation practices, such as using feeding tubes, help ensure that the electrical performance and safety standards of the cables are maintained throughout their use.