What is considered the most technical part of underground installations?

The most technical part of underground installations is splicing and terminations. This process requires a high level of skill and precision, as it involves joining two pieces of wire or cable together in a way that maintains the integrity and performance of the electrical system. Properly executed splicing ensures that there are no points of failure in the connection, which could lead to issues such as signal loss or electrical shorts. The techniques used in this process often demand a solid understanding of electrical theory, as well as familiarity with various materials and tools used to create secure and reliable connections.

In contrast, while trenching involves important groundwork to lay the foundation for an underground installation, it is more about excavation than technical electrical work. Pulling cable is essential for installing the infrastructure but is less intricate than the precision required for splicing and terminations. Connecting grounding systems, while critical to safety, also does not require the same level of technical skill as ensuring that splices and terminations are executed correctly, making splicing and terminations the standout choice in terms of technicality.