Which installation parameter should be considered when installing cables into conduits or cable trays?

The consideration of clearance is vital when installing cables into conduits or cable trays because it ensures that there is adequate space for the cables to be properly laid out and to accommodate any thermal expansion during operation. Clearance helps prevent the cables from being compressed or excessively crowded together, which can lead to overheating and potential failure over time. Additionally, proper clearance aids in future maintenance and installation activities, allowing technicians to access cables without obstruction.

While aspects such as color coding, electrical load, and length of cables are important in different contexts—such as organization, ensuring the system can handle the required power, and managing logistics—none address the immediate physical requirements necessary for safe and effective installation like clearance does. Keeping proper clearance helps maintain compliance with safety standards and promotes the longevity and reliability of the installed electrical system.