What signifies that an electrical panel is bonded?

The indication that an electrical panel is bonded is represented by the use of a green-headed screw. In electrical installations, bonding is a critical safety measure that connects the neutral and grounding conductors. This connection helps to ensure that any stray electrical current is safely directed to the ground, thereby reducing the risk of electrical shock or fire hazards.

The standard practice for identifying points where bonding occurs in an electrical panel is to use a green screw. This color coding is universally recognized, making it easier for electricians and inspectors to quickly identify grounding components.

Other color-coded screws, such as red, blue, or yellow, do not have the same recognized standard for indicating a bonding connection within panels. Therefore, their presence does not provide the same clarity or assurance of bonding as the green-headed screw does. Understanding this color code is essential for anyone working with electrical systems to ensure safety and compliance with electrical codes.