Grounded and Ungrounded Conductors Flashcards
Defined as a system or circuit conductor that is intentionally grounded.
Grounded Conductor
serves
as the grounded leg of the circuit. It completes the circuit by
connecting the ungrounded (hot) conductor to ground.
grounded conductor in single branch circuits
in circuit design, the _______ is considered to be
a current carrying conductor because it serves as a return
path back to the circuit’s power source.
grounded conductor
performs the function of a
grounded conductor for at least two ungrounded
(hot) conductors that have sources from different
voltage phases, such as on a multiwire branch circuit,
multiwire feeder, and the electrical service.
neutral conductor
It is a
grounded conductor that is shared between two or
more ungrounded conductors.
neutral conductor
frequently called a shared neutral or
common neutral.
neutral
conductor
Also called the hot wires
Ungrounded conductors
is the practice of dividing loads as
evenly as possible between the ungrounded
conductors on a multiwire circuit, feeder, or service.
Load Balancing
offers excess
electricity the most
effective and safest route
from an appliance back to
the ground by way of
an electrical panel.
Grounding
is a
backup pathway that is
generally only used if a
fault in the wiring system
Electrical grounding
It is a continuous
conductor that connects
the ground to the neutral
bus bar and the grounding
conducting bus bar in the
service equipment/main
panelboard.
Grounding Conductor
It safely carry current to
ground in the event of a
lightning strike or in cases
of damage or defect in the
circuiting, appliances,
devices, or equipment, It
also provide safety feature to the wiring system
Grounding Conductor uses
Is the part of a building
electrical system that
provides protection against
electrical shock, lightning,
and fires.
SYSTEM GROUNDING
System grounding relates to bonding
(connecting) all building electrical
system components at the service
entrance equipment at the
______ of the ___________ or __________.
neutral bus, main
panelboard, switchboard
Refers to a grounding conductor or grounding path that connects the non-current carrying metal components of equipment
Equipment Grounding
It is accomplished by installing an additional grounding conductor or by permanently joining metal components in a circuit.
Bonding
a bare conductor or a green-
colored, insulated conductor that connects (bonds) the outlet boxes,
metallic raceways, other enclosures and frames on motors,
appliances, and other electrical equipment.
EQUIPMENT-GROUNDING CONDUCTOR
protects the user from
electric shock by creating a
nonconducting barrier between the
user and the electric components inside
the appliance or tool.
Double insulation
________ and _________ with
double insulation are not required to
plug.
have a grounding conductor— that is,
they are allowed to have a __________.
Small appliances, power tools, two-prong plug.
The primary difference between an appliance
with a three-prong plug and an appliance
with a two-prong plug is the __________.
appliance casing
an appliance casing is a good conductor
(e.g., made of metal), then it must have a
_______ and __________
grounding conductor, three-prong plug
