The Building Electrical System

Question 1

Typically, ___________ begins with selection of a
building system voltage, which is dependent on
sizes and types of the connected loads, utilities near
the building, local codes and ordinances,
economics, and safety.

Answer 1

system design

Question 2

means a ground-mounted or roof-top
distributed solar generation system
designed and installed for residential
applications, which is leased by, or subject
to a power purchase agreement with, the
owner of a residence for the purpose of
generating Electricity for that residence.

Answer 2

Residential Systems

Question 3

is a single building
that’s set up
accommodate more than
one family living separately.

Answer 3

MULTIFAMILY DWELLING

Question 4

which has
two dwellings within a single
building, to homes or
small apartment buildings
with up to four units.

Answer 4

duplex

Question 5

power is brought from a utility transformer to the building service
equipment. It is then divided at a main distribution panel, passes
through individual meters, and is distributed to the individual
dwelling units through feeders.

Answer 5

Multifamily dwelling units

Question 6

extend from a
panelboard to feed outlets within the unit.

Answer 6

Branch circuits

Question 7

has
branch circuits that serve common areas (e.g., corridors, laundry
rooms, lobbies, and so forth).

Answer 7

house panelboard

Question 8

have large and
varied power requirements that necessitate different types of
systems for different building occupancies.

Answer 8

Large commercial and industrial facilities

Question 9

In a typical large building, _________ is provided to a transformer located outside the building
or it enters a transformer vault located at the service level in
the building.

Answer 9

electrical
power

Question 10

lines serving a residential development being buried in a trench.

Answer 10

Underground
Electrical Distribution

Question 11

Lines readied for connection to exterior transformer

Answer 11

Underground Distribution Lines

Question 12

A 120/240 V-150 A, underground service entrance for a single family residence

Answer 12

Electric meter

Question 13

Underground service entrance for a multifamily dwelling unit

Answer 13

Electrical meter for multifamily dwelling unit

Question 14

A service entrance with the electrical meter and main disconnect (below meter and above circuit breakers). Circuit breakers are properly marked on
the panelboard face

Answer 14

Electrical Meter and Main Disconnect

Question 15

A close-up view of the inside of the panelboard.

Answer 15

paneboard

Question 16

Can pass through floor and ceiling joists.

Answer 16

Circuit Cables

Question 17

Exposed lighting fixture.

Answer 17

Exposed lighting

Question 18

Exposed box

Question 19

Receptacle and Faceplate

Question 20

Covered convenience receptacle

Answer 20

outlet