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What is one requirement for the fastening of cables near the ground?

  1. Cables must be fastened every foot

  2. Cables must not be fastened at all

  3. Cables must be fastened at specified intervals

  4. Cables can be fastened at any distance

The correct answer is: Cables must be fastened at specified intervals

Cables must be fastened at specified intervals near the ground to ensure safety and compliance with electrical codes. This requirement helps prevent tripping hazards and maintains the integrity of the installation. Proper fastening is essential to protect the cables from damage and to prevent them from becoming loose over time, which could lead to unsafe conditions such as electrical shorts or exposure to environmental factors that could degrade the cable. Fastening cables at specified intervals also aids in organization and ease of maintenance, as it keeps the wiring system orderly and less susceptible to interference from physical disturbances. This practice follows established guidelines and standards, which are designed to protect both the installation and the individuals who may come into contact with the cables.