Energized and Non-Energized Parts Flashcards
Everyone except qualified employees must stay ? from energized parts up to 50,000 volts
10 feet
A qualified worker must be trained and have the ability to recognize ? .
energized parts
A qualified individual understands that all conductors must be ? .
considered energized until proven to be otherwise
The normal operating voltage of electrical equipment must be determined by workers ? .
before work begins
Objects that are (insulated) from ground are ? .
conductive and can be expected to be energized
Conductors are the part of an electrical system that carries electrical current.
True
Electrical circuits may be in a(n) ? configuration.
wye or delta
The neutral conductors are normally connected to the ? .
ground
The parts of an electrical system used to isolate conductive (energized) material from other parts are called ? .
insulators
The operating voltage of an insulator can be determined by the ? , its length, or its height.
SKirts
The piece of equipment used to step the voltage up or down in an electrical system is called a ? .
transformer
When a voltage condition occurs that is higher than the designed voltage for the system, a(n) ? becomes a path to ground.
arrester
Guy wires cannot become energized because they are tied to rods in the earth.
False
The connection point between an underground cable and an overhead conductor is normally made through a ?
pothead
Ways to determine the actual operating voltage of a power line include asking an authorized company representative, observing nameplate information, and ? .
using test instruments
The approach distance to a 12,000-volt line phase-to-phase is ? .
2’ 2”
The electrical factor distance and human factor distance are also called the ? .
minimum approach distance
The term nominal voltage means the ? .
normal operating voltage
A Qualified Electrical Worker must be ? .
able to determine the nominal voltage of exposed live parts
Most electrical conductors are made of copper, aluminum, or ? in older systems.
steel
The device used to automatically raise or lower the primary voltage of a line to ensure its optimal voltage range is a ? .
regulator
A capacitor stores electrical energy.
true
Insulators installed in guy wires are intended to protect ? .
people and equipment on the ground
