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Terms in this set (120)
Electrical devices operating at less 25,50
than ___ volts and not supplying
more than ___ watts of energy Section R105.2 Electrical #4
shall be exempt from requiring
an electrical permit.
Building Official
Who has the authority to give
permission to provide
Section R107.3
temporary power?
A___conductor is a conductor that Covered
is
encased within a material or has a Definitions Section E3501 - Conductor, Covered
thickness NOT recognized by the
IRC as electrical
insulation.
An approved enclosure shall 50
be used to guard people against
accidental contact with Section E3404.9
energized parts that operate
at a minimum of volts.
When splicing, terminating, or 6
connecting a conductor to a
fixture or device the minimum Section E3406.11.3
length of free conductor required
at an outlet, junction box, or
switch point
shall be at least inches?
Electrical copper conductors No. 14 AWG
used for feeders and branch
circuits shall have a minimum Section E3406.3
size of______ _.
An overhead service conductor 12
spanning over a driveway shall
maintain a minimum vertical Section E3604.2.2 #2
,clearance of feet from final
grade.
The mounting supports used 12,30
to support service-entrance
cables shall be located Section E3605.7
within inches of the service head
and at
intervals no greater than
inches.
A minimum clearance not less than 3
_______________________ feet
shall be provided between the Section E3604.1
side of a door and an open
service conductor
without an overall outer jacket.
An open service conductor shall 3
have a minimum vertical
clearance of no less than Section E3604.2.1 Exception 2
___ feet above a roof that has a
5:12 roof slope.
True or False. The disconnecting True
means for an electrical service
cannot be installed in a Section E3601.6.2
bathroom.
A metal underground water pipe 10
must be in direct contact with the
earth for a minimum of ___ feet Section E3608.1.1
to be considered as a grounding
electrode.
, A ground ring can be used as a 30, 20, 2
grounding electrode if located a
minimum ___ inches Section E3608.1.3
below the earth and at least ___
feet of bare copper wire no
smaller than ___ AWG is used.
Two grounding rods used in one 6
grounding electrode system
must be located at least Section E3608.3
___ feet apart.
When a rod is used as a grounding 8
electrode, it shall not be less
than ___ feet in length. Section E3608.1.4
When a rod used as a grounding 30 Inches
electrode is buried in a trench,
what must the minimum depth Section E3608.1.4.1
of the trench be?
A supplemental grounding 25
electrode is not required when
the single grounding Section E3608.4 Exception
electrode provided has a
resistance of ___ ohms or less to
the earth.
A minimum unit load of ___ 3
volt-amperes
shall be used to size feeder Section E3704.4
conductors for lighting and
general use receptacle loads per
square foot of floor area.
What is the minimum demand 5,000 VA
load factor in volt-amperes for an
electrical clothes dryer circuit Table E3704.2(1)
when calculating to determine
the minimum electrical feeder
loads?