Conductor - ACCURATE ANSWERS material that has very little resistance and permits electrons to move through it easily
Insulator - ACCURATE ANSWERS any material that has a very high resistance and resists the flow of electrons
Generated electricity - ACCURATE ANSWERS the alternating current (A...
Conductor - ACCURATE ANSWERS✔✔ material that has very little
resistance and permits electrons to move through it easily
Insulator - ACCURATE ANSWERS✔✔ any material that has a very
high resistance and resists the flow of electrons
Generated electricity - ACCURATE ANSWERS✔✔ the alternating
current (AC) created by power plant generator
Three phase - ACCURATE ANSWERS✔✔ three distinct wave cycles,
3-wires, 415V
Single phase - ACCURATE ANSWERS✔✔ power supply has one
distinct wave cycle, single wire, 230V
Service panel - ACCURATE ANSWERS✔✔ is an electrical device
containing fuses or circuit breakers for protecting the individual circuits
of a residence and serves as a means of disconnecting the entire
residence from the distribution system
,Circuit - ACCURATE ANSWERS✔✔ a complete path (when on) for
current to take and includes electrical control devices, circuit protection,
conductors, and load(s)
System ground - ACCURATE ANSWERS✔✔ is a special circuit
designed to protect the entire distribution system of a residence
Equipment ground - ACCURATE ANSWERS✔✔ is a circuit designed
to protect individual components connected to an electrical system
2 methods for grounding an electrical system - ACCURATE
ANSWERS✔✔ metal water pipe and alternative electrode
Electrode - ACCURATE ANSWERS✔✔ is a long metal rod used to
make contact with the earth for grounding purposes
Fuse - ACCURATE ANSWERS✔✔ an electric overcurrent protection
device used to limit the rate of current flow in a circuit
Circuit breaker - ACCURATE ANSWERS✔✔ is an overcurrent
protection device with a mechanical mechanism that may manually or
automatically open a circuit when an overload condition or short circuit
occur
,Ground Fault Circuit Interrupter (GFCI) - ACCURATE ANSWERS✔✔
a fast-acting receptacle that detects low levels of leakage current to
ground and opens the circuit in response to the leakage
LOTO - ACCURATE ANSWERS✔✔ Lockout/Tagout
National Electrical Code (NEC) - ACCURATE ANSWERS✔✔ is a
book of electrical standards that indicate how electrical systems must be
installed and how work must be performed. Standards for residential,
commercial, and industrial electrical work
National Fire Protection Association: NFPA 70E - ACCURATE
ANSWERS✔✔ standard for electrical safety in a workplace, addresses
electrical safety requirements for employee workplaces that are
necessary for safeguarding employees in pursuit of gainful employment
Potential energy - ACCURATE ANSWERS✔✔ is stored energy a body
has due to its position, chemical state, or condition
Kinetic energy - ACCURATE ANSWERS✔✔ energy of motion
(released potential energy)
Voltage (AC only) - ACCURATE ANSWERS✔✔ is the amount of
electrical pressure in a circuit. Produced any time there is an excess of
electrons at one terminal and deficiency in an other, the greater the
difference = higher voltage
, DC voltage - ACCURATE ANSWERS✔✔ voltage that flows in 1
direction only (portable equipment)
AC voltage - ACCURATE ANSWERS✔✔ voltage that reverses its
direction of flow at regular intervals (res,com,indust lighting and power
distribution systems)
Rectifier - ACCURATE ANSWERS✔✔ a device that converts AC to
DC by allowing the voltage and current to move in only one direction
Single - ACCURATE ANSWERS✔✔ (AC) contains only one
alternating voltage waveform
Three - ACCURATE ANSWERS✔✔ (AC) a combination of three
alternating voltage waveforms, each displace 120 electrical degrees apart
Current - ACCURATE ANSWERS✔✔ the amount of electrons flowing
through an electrical circuit (amperes)
Ampere/amp - ACCURATE ANSWERS✔✔ the number of electrons
passing a given point in 1 second
Conventional current flow - ACCURATE ANSWERS✔✔ current flow
from + to -
Electron current flow - ACCURATE ANSWERS✔✔ flow from - to +
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