Definitions
The connection to ground or to a conductive body that extends the ground connection.
What Is Grounded?
What must be done with all grounding electrodes present at a building or structure?
What is 'bonded together to form the grounding electrode system'
What are two main purposes of bonding and what article can we find this in?
What is ensuring electrical continuity and safely conducting fault current. Article 250.90?
During a service installation, 700kcmil aluminum is used as the largest ungrounded service conductor. What is the minimum size copper grounding electrode conductor required?
What is 1/0 AWG (Table 250.66)
Connected to establish electrical continuity and conductivity
What is Bonding.
What is the minimum space between two rod grounding electrodes?
What is 6ft (250.53)
If the largest ungrounded copper conductor is 1/O AWG, what is the minimum size of the copper bonding jumper?
What is 6 AWG copper?
A service is using 2/0 AWG copper service-entrance conductors. What is the minimum size copper grounding electrode conductor?
What is 4 AWG (Table 250.66)
What is a circuit conductor that is intentionally grounded.
What is a requirement for a grounding electrode system if a metal underground water pipe is used as a grounding electrode?
What is 'must be supplemented by an additional grounding electrode' 250.53(D)(2)
If the largest ungrounded aluminum conductor is 600 kcmil, what is the minimum size of the aluminum or copper-clad aluminum bonding jumper?
What is 3/O AWG?
True or False? The EGC is sized based only on the load's actual running amperage.
What is false? EGC is sized based on the load's OCPD
A conductive path that is part of effective ground fault current path & connects normally non current carrying metal parts of equipment together and to the system grounded conductor or the grounding electrode.
What is a Equipment Grounding Conductor?
What is the primary job of an EGC during a ground fault?
Providing an effective fault current path to help the overcurrent device operate.
What shall be used around impaired connections, such as reducing washers or oversized, concentric, or eccentric knockouts?
What are bonding jumpers?
Under 250.122(A) must the egg always be larger than the circuit's ungrounded conductors?
What is no? The EGC is NOT required to be larger than the circuit conductors supplying the equipment.
An Electrically conductive path from the point of a ground fault on a wiring system through normally non current carrying conductors, grounded conductors , equipment or the earth to the electrical supply source.
What is Ground Fault Current Path.
Does Section 250.122 size the grounding electrode conductor or the equipment grounding conductor?
Equipment grounding conductor
What two types of building components, in addition to other applicable metal piping systems, have specific bonding requirements, and where can we find this information?
What is metal water piping and exposed structural metal. Article 250.104
What is the minimum copper EGC for a 400-amp breaker?
What is 3 AWG copper?