What must be provided for multiconductor cables on exterior surfaces?

What must be provided for multiconductor cables on exterior surfaces?

• A. Protection from wind
• B. Supports as specified in the code
• C. Insulation against water
• D. Covering against UV radiation

Answer: (B)

Multiconductor cables on exterior surfaces must be supported according to the specifications outlined in the National Electrical Code (NEC). The NEC provides clear guidelines on how and where these cables should be supported to ensure safety and compliance. Proper support prevents sagging, which can lead to physical damage to the cables over time, as well as potential hazards such as electrical shorts or fires. The specific support requirements help maintain the integrity of the installation and ensure that the cables are adequately secured. This is particularly important in exterior environments where environmental factors, like temperature changes and physical forces, may impact the installation. While measures such as protection from wind, insulation against water, and coverings against UV radiation are important considerations in certain contexts, the NEC specifically emphasizes the need for proper supporting mechanisms for the cables to ensure a secure and compliant installation. Thus, focusing on the support requirements aligns with the NEC's goal of promoting safe electrical practices.

Multiconductor cables on exterior surfaces must be supported according to the specifications outlined in the National Electrical Code (NEC). The NEC provides clear guidelines on how and where these cables should be supported to ensure safety and compliance. Proper support prevents sagging, which can lead to physical damage to the cables over time, as well as potential hazards such as electrical shorts or fires.

The specific support requirements help maintain the integrity of the installation and ensure that the cables are adequately secured. This is particularly important in exterior environments where environmental factors, like temperature changes and physical forces, may impact the installation.

While measures such as protection from wind, insulation against water, and coverings against UV radiation are important considerations in certain contexts, the NEC specifically emphasizes the need for proper supporting mechanisms for the cables to ensure a secure and compliant installation. Thus, focusing on the support requirements aligns with the NEC's goal of promoting safe electrical practices.