Which aspect is essential for conductor routing as per NEC Article 300?

The essential aspect of conductor routing as per NEC Article 300 is indeed avoiding sharp bends and kinks. This principle is crucial because sharp bends can cause damage to the conductor, resulting in insulation breakdown and increasing the risk of electrical faults. When a conductor is bent sharply or kinks are present, it can lead to stress on the conductor, compromising its integrity and performance.

In addition, maintaining smooth and gradual curves ensures that the conductor can handle the necessary electrical current without excessive heat or resistance. This practice helps to enhance safety and reliability in electrical installations, aligning with NEC's objectives to prevent hazards associated with electrical circuits. Proper routing practices, including avoiding sharp bends, contribute to the overall effectiveness and longevity of the electrical system.