The minimum depth for an electrode buried at a 45-degree angle is how many inches?

The minimum depth for an electrode that is buried at a 45-degree angle is indeed 30 inches. This depth is specified to ensure that the electrode is properly installed into the ground, allowing for adequate grounding for safety and functionality. When an electrode is buried at an angle, the depth measurement is taken from the point where the electrode emerges at the surface vertically downward. Since the angle introduces a sloped component, the depth required to achieve effective grounding is established at 30 inches to maintain compliance with standards for electrical safety and reliability. This minimum depth helps to ensure the electrode's effectiveness in preventing electrical hazards by providing a stable path for fault currents to ground.