Branch Ciruit
Each multiwire branch circuit shall be provided with a means that will simultaneously disconnect all __ conductors at the point where the branch circuit originates.
ungrounded----210.4 B
Unless otherwise specified, for purposes of calculating branch-circuit and feeder loads, __ system voltages of 120V,120/240V,208Y/120V,240V,347V,480Y/277V,480V, 600Y/347V, and 600V shall be used.
nominal---220.5A
Additional services shall be permitted for a single building or other
structure sufficiently large to make two or more services necessary
if permitted by __ .
special permission---230.2C3
True or False: Single-pole breakers with identified handle ties can be used to
protect each ungrounded conductor for line-to-line connected Loads
True--240.14 B2 & 3
Grounding electrodes of the rod type less than __ in. in diameter shall be listed.
5/8 "
If two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to simultaneously disconnect the ungrounded supply conductors shall be provided __ .
at the point where the branch circuits originate---210.7
For dwelling units, the calculated floor area for the general lighting load shall not include __ .
open porches----220.5C
Underground service conductors shall be protected from damage
in accordance with __ including minimum cover requirements.
NEC, 300.5-----230.32
Type __ fuse adapters shall be designed so that once inserted in a fuse holder they cannot be removed.
type -S---NEC Section 240.54 C
Where rock bottom is encountered when driving a ground rod at an angle up to 45°, the electrode can be buried in a trench that is at least __ deep.
30 in.-250.53 G
Factory-installed receptacles mounted internally to bathroom __ assemblies shall not require GFCI protection unless required by the installation instructions or listing
exhaust fan---210.8 A EX4
Nondwelling unit motors rated less than __ and connected to a lighting circuit shall be considered general lighting load.
1/8 hp----NEC 220.42 A
On a three-phase, 4-wire, delta-connected service where the midpoint of one phase winding is grounded, the service conductor
having the higher phase voltage-to-ground shall be durably and permanently marked by an outer finish that is __ in color, or by other effective means, at each termination or junction point.
orange-----230.56
The next higher standard rating overcurrent device above the ampacity of the ungrounded conductors being protected shall be permitted to be used, provided the _ _ .
conductors being protected are not part of a branch circuit supplying more than one receptacle for cord-and-plug connected portable loads & ampacity of the conductors does not correspond with the standard ampere rating of a fuse or circuit breaker & next higher standard rating selected does not exceed 800A----NEC Section 240.4 B 1,2,3
Where the supply conductors are larger than 1,100 kcmil copper or 1,750 kcmil aluminum, the main bonding jumper shall have an area that is __ the area of the largest phase conductor when of the same material.
not less than 12½ percent of
A receptacle supplying only a permanently installed
premises __ shall be permitted to omit ground-fault circuit interrupter
protection.
security system---210.8 A EX2
For dwelling unit load calculations in accordance Article 220, the branch-circuit load for one 10-kW range is __ .
8kW------220.55 note 4
The minimum point of attachment of overhead service conductors to a building shall not be less than __ ft above finished grade.
10 feet -----NEC 230.26
Overcurrent protection shall not exceed __ ___ or ___ for a 14,12 & 10 gauge wire
15A for 14 AWG copper & 20A for 12 AWG copper & 30A for 1 0 AWG copper ----NEC Section 240.4 D 3,5 & 7
__ shall not be used as grounding electrodes.
Metal underground gas piping systems or Aluminum----250.52 B1 & 2
In dwelling units, GFCI protection shall be provided for 125V through 250V receptacles installed in areas with sinks and permanent provisions for __ .
food preparation or beverage preparation or cooking--210.8 A 7
Applying a demand factor of 75 percent to the nameplate rating load of four or more appliances rated ¼ hp or greater, or 500 watts or greater, that are fastened in place, and that are served by the same feeder or service in a one-family, two-family, or multifamily dwelling shall be permitted. This demand factor shall not apply to __ .
electric vehicle supply equipment----220.53 -5
Underground service conductors that supply power to limited
loads of a single branch circuit shall not be smaller than _ _ .
12 AWG copper----230.31 B Ex
A circuit breaker having an interrupting current rating of other than __ shall have its interrupting rating marked on the circuit breaker.
5,000A ----NEC Section 240. 83 C
Where a building or structure contains more than one service disconnect in separate enclosures, grounding electrode connections shall be permitted to be _ _ .
multiple individual grounding electrode conductors or one grounding electrode conductor at a common location or a common grounding electrode conductor and taps---250.64 D 1,2 & 3