Connecting the grounding system to structural rebar in concrete is known as what type of system?

Connecting the grounding system to structural rebar in concrete is referred to as a concrete-encased electrode. This type of grounding electrode system is recognized for its effectiveness in providing a bonding point for grounding in concrete structures. The rebar, which is often used for reinforcement in concrete, helps to create a low-resistance grounding path effectively when it is embedded within the concrete.

This system is advantageous because it takes advantage of the large surface area that the rebar provides, combined with the conductivity of the concrete when it is saturated with moisture, which enhances the grounding system's overall effectiveness. When grounding through concrete-encased electrodes, there are specific dimensions and installation guidelines that must be adhered to in order to ensure compliance with National Electrical Code (NEC) requirements.

By using rebar in this manner, it helps establish a solid grounding connection that can improve electrical system safety, particularly in reducing shock hazards and facilitating fault current dissipation.