What is the primary purpose of training cables on the manhole wall?

The primary purpose of training cables on the manhole wall is to provide expansion space. Cables can expand and contract due to temperature changes or physical stress, and training them properly allows for this movement without causing stress on the cables or their connections. This setup helps in managing the cables in a way that accommodates their natural behavior, thus preventing potential damage or tension that could lead to failures in the electrical system.

A neatly arranged cable management system, while visually appealing, isn’t the main function of training cables on the wall. Facilitating easier access is also a consideration, but it is secondary to ensuring that there is proper allowance for thermal expansion. Additionally, while improving insulation protection can be a result of good cable management, it is not the primary reason for training cables on the wall. Overall, the focus on providing expansion space maintains the integrity and reliability of the cable system.