Article 225 - Outside Branch Circuits and Feeders (QUARTER 2)

The point of attachment of overhead premises wiring to a building shall in no case be less than _____ ft above finished grade.

10

Overhead feeder and branch circuit spans of open conductors and open multiconductor cables of not over 1,000V, nominal, shall have a clearance of not less than _____ ft over residential property and driveways.

12

Overhead feeder conductors shall have a minimum vertical clearance of _____ ft over residential property and driveways, as well as those commercial areas not subject to truck traffic, where the voltage does not exceed 300 volts-to-ground.

12

A building disconnecting means that supplies only limited loads of a single branch circuit shall have a rating of not less than _____.

15A

Overhead feeder and branch circuit clearance from chimneys, radio and television antennas, tanks, and other nonbuilding or nonbridge structures, shall not be less than _____ ft.

3

Overhead feeder conductors installed over roofs shall have a vertical clearance of not less than _____ above the roof surface, unless otherwise permitted by an exception.

8 ft 6 in.

Outside branch circuits and feeders shall not be installed beneath openings through which materials may be moved and shall not be installed where they will obstruct the entrance to these buildings' openings. True or False

True

Overhead feeder and/or branch-circuit conductors shall not be attached to a mast where the connection is _____ a weatherhead or the end of the conduit and a coupling where the coupling is located above the last point of securement to the building or other structure, or where the coupling is located above the building or other structure.

between

Underground raceways entering a(an) _____ from outside shall be sealed.

building or structure

Raceways entering from outside shall be sealed with a product identified for use with the _____ insulation.

conductor or cable

The two to six disconnects for a disconnecting means for a building supplied by a feeder shall be _____.

grouped

Raceways on exteriors of buildings or other structures shall be arranged to drain and shall be _____ for use in wet locations.

listed or approved

There shall be no more than _____ switches or circuit breakers to serve as the disconnecting means for a building supplied by a feeder.

six

Where multiple feeder conductors to a building originate in the same panelboard, switchboard, or other distribution equipment, and each feeder terminates in a single disconnecting means, not more than _____ feeders shall be permitted.

six

The requirement for maintaining a 3-foot vertical clearance from the edge of the roof shall not apply to the final feeder conductor span where the conductors are attached to _____.

the side of a building

Open individual conductors shall not be smaller than _____ AWG copper for spans up to 50 ft in length and _____ AWG copper for a longer span, unless supported by a messenger wire.

10, 8

For a one-family dwelling, the feeder disconnecting means shall have a rating of not less than _____, 3-wire.

100A

The minimum clearance for overhead feeder conductors not exceeding 1,000V that pass over commercial areas subject to truck traffic is _____ ft.

18

If a set of 120/240V overhead feeder conductors terminates at a through-the-roof raceway or approved support, with not more than 6 ft of these conductors, 4 ft horizontally, passing over the roof overhang, the minimum clearance above the roof for these conductors is not less than _____.

18 in.

Article _____ covers requirements for outside branch circuits and feeders run on or between buildings, structures, or poles on the premises.

225

The vertical clearance of final spans of overhead conductors above or within _____ ft measured horizontally of platforms, projections, or surfaces that will permit personal contact shall be maintained in accordance with 225.18.

3

For installations consisting of not more than two 2-wire branch circuits, the building disconnecting means shall have a rating of not less than _____.

30A

For all other installations, the feeder or branch-circuit disconnecting means shall have a rating of not less than _____.

60A

Where a mast is used for overhead branch-circuit or feeder conductor support, it shall have adequate strength or be supported by braces or guys to safely withstand the strain imposed by the conductors. True or False

True

Where more than one feeder is installed to a building in accordance with this 225.30(B), all feeder disconnects in the building shall be grouped in the same location. True or False

True

A building or structure shall be supplied by a maximum of _____ feeder(s) or branch circuit(s), unless specifically permitted otherwise.

one

Vegetation such as trees shall not be used for support of _____.

overhead conductor spans

Where a building has multiple feeders, a permanent _____ shall be installed at each feeder disconnect location denoting all other services and feeders and the area served by each.

plaque or directory

The disconnecting means for a building supplied by a feeder shall be installed at a(an) _____ location.

readily accessible