Electrical Hazard Flashcards
flow of negatively
charged particles called electrons through an
electrically conductive material.
Electricity
Electrical current passing through the
human body causes a
Shock
when a person
makes contact with a conductor carrying a
current and simultaneously contacts the ground
or another object that includes a conductive
path to the ground
Electrocution
circuit in which the
load has been removed or bypassed. can be another source
of electrical hazard if a human is the conductor
to the ground, thereby bypassing the load.
Short circuit
may cause minor
shocks. Shocks from static electricity may result
from a single discharge or multiple discharges
of static
Electrostatic hazards
When the electric arc is a discharge of
static electricity, it may be called a
Spark
may involve relatively little or a
great deal of power and is usually discharged
into a small space
Spark or arc
static charges from clouds
following the path of least resistance to the
earth, involving very high voltage and current.
Lightning
permits equipment to
operate normally but can result in hazardous
conditions.
Improper wiring
When the ground is
connected improperly, the situation is referred
to as
Open ground
he hot and
neutral wires have been reversed
Reversed polarity
The degradation of __________ can cause
a bare wire and resulting shock to anyone
coming in contact with that wire.
Indulation
classifies hazardous locations
for electrical equipment. There are three basic
classes
Class I for flammable vapors and gases,
Class II for combustible dusts, and
Class III for
ignitable fibers
The severity of injury with electrical shock depends on the
Dosage of current
the primary method of reducing electrical
hazards.
Grounding of electrical equipment
