A Glossary of Grounding & Bonding Terms
As defined by the 2005 U.S. National Electrical Code (Section Numbers in Brackets)
The permanent joining of metallic parts
to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current
likely to be imposed .
A conducting connection, whether intentional or accidental, between an electrical circuit or equipment
and the earth or to some conducting body that serves in place of the earth .
Connected to earth or to some conducting body that serves in place of the earth .
Bonding Jumper System:
The connection between the grounded circuit conductor and the equipment grounding conductor at a separately derived system .
Effective Ground-Fault Current Path:
An intentionally constructed, permanent, low-impedance electrically conductive path designed and intended to carry current under ground-fault conditions from the point of a ground fault on a wiring
system to the electrical supply source and that facilitates the operation of the overcurrent protective device [250.2].
An unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally noncurrent-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth [250.2].
Ground-Fault Current Path:
An electrically conductive path from the point of a ground fault on a wiring
system through normally noncurrent-carrying conductors, equipment, or the earth to the electrical supply source [250.2].
A conductor used to connect equipment or the grounded circuit of a wiring system to a grounding electrode .
Grounding Conductor, Equipment:
The conductor used to connect the noncurrent-carrying metal parts
of equipment, raceways, and other enclosures to the system grounded conductor, the grounding electrode conductor, or both, at the service
equipment or at the source of a separately derived system .
A device that establishes an electrical connection to the earth .