G
A UL cable type. Rubber insulated, neoprene, Hypalon or CPE jacketed portable power cable with two to five \8 AWG or larger conductors with ground wires

Galvanized Steel Wire
Steel wire coated with zinc

Gang Strip
Stripping all or several conductors simultaneously

Gas Filled Cable
A self-contained pressurized cable in which the pressure medium is an inert gas having access to the insulation

Gauge
A term used to denote the physical size of a wire

Gauss
A unit of magnetic induction (flux density) equal to 1 maswell per square centimeter

General Purpose Instrumentation Bus (GPIB)
A protocol standard defined bu the IEEE

GFI
Ground Fault Interrupter. A protective device that detects abnormal current flowing to ground and then interrupts the circuit

G-GC
A UL cable type. A portable power cable similar to Type G, but also having a ground check conductor to monitor the continuity of the grounding circuit

GHz
Gigahertz; 1,000,000,000 cycles per second

Giga
A numerical prefix denoting one billion (10 to the power of 9)

GND
Ground

Ground
A voltage reference point that is the same as earth or chassis ground

Ground Conductor
A conductor in a transmission cable or line that is grounded

Ground Fault
See Fault, Ground

Ground Loop
the generation of undesired current flow within a ground conductor, owing to the circulation of currents which originate from a second source of voltage

Ground Plane
Expanded copper mesh which is laminated into some flat cable constructions as a shield

Ground Potential
Zero potential with respect to the ground or earth

Ground Neutral
The neutral wire that is metallically connected to the ground

GTO
Gas tube sign and oil-burner ignition cable, 5kV - 15kV

Guy
A tension wire connected to a tall structure and another fixed object to add strength to the structure