Branch Circuits
A(n) ___ combination-type AFCI is installed to provide protection of the entire branch circuit.
Listed
210.12(A)(1)
Grounded conductors for feeders shall be identified by a continuous white finish or ___.
3 white or gray stripes on other than green conductor
215.12(A).
Part I of Article 230 covers the ___ requirements for services.
General
Which article covers the requirements for the installation of Type ITC cable?
Article 335
Installing direct burial cable under an airport runway requires a minimum cover of ___.
Eighteen inches (Table 300.5(A) )
The disconnecting means for a multiwire branch circuit shall simultaneously disconnect all ___.
Ungrounded conductors at the point where the branch circuit originates
210.4
Where within ___ feet of any building or structure, other than supporting poles or towers, open individual (aerial) overhead conductors shall be insulated for the nominal voltage.
Ten feet (225.4)
The minimum size copper conductors permitted to be used for an overhead service is ___.
8 AWG
230.23(B)
Name two uses not permitted for type NMC.
334.12(A)
In both exposed and concealed locations, where a cable- or raceway-type wiring method is installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than ___ from the edges of the wood member.
1 1/4"
300.4(A)(1)
All 125-volt through 250-volt receptacles supplied by a single-phase branch circuit rated 150-volts or less to ground and ___ or less for kitchens in other than dwelling units shall have ground-fault circuit-interrupter protection for personnel.
50 A
210.8(B)(2)
In general, each feeder disconnect rated 1,000 amperes or more and installed on solidly grounded wye electrical systems of more than ___ to ground, but not exceeding 1,000 volts phase-to-phase, shall be provided with ground fault protection.
150 V
215.10
An additional or additional service(s) is permitted where the capacity requirements are in excess of ___ at a supply voltage of ___ or less.
2000A / 1000V
230.2(C)
The uses permitted for conduit and raceways are located in which of the following sections?
.10
Except as permitted elsewhere in the NEC, the minimum size of copper conductor rated 0 to 2,000 volts according to Article 310, is ___.
14 AWG
310.3(A)
In a dwelling unit, a receptacle supplying only a permanently installed premises ___ system shall be permitted to omit ground-fault circuit-interrupter protection.
Security
210.8(A) Exception No. 2
Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum feeder conductor size shall have an ampacity not less than the noncontinuous load plus ___ of the continuous load.
125%
215.2(A)
Where two to six service disconnecting means in separate enclosures are grouped at one location and supply separate loads from one service drop or lateral, ___ set(s) of service-entrance conductors shall be permitted to supply each or several such service equipment enclosures.
1
230.40 Exception No. 2
Where would the metric designators and trade sizes for conduit, tubing, and associated fittings and accessories be located in the NEC?
Table 300.1(C)
Where the number of current-carrying conductors in a raceway or cable exceeds ___, the allowable ampacity of each conductor shall be reduced as shown in Table 310.15(C)(1).
3
310.15(C)(1).
A listed branch/feeder-type AFCI installed at the origin of the branch circuit in combination with a listed outlet branch-circuit-type AFCI installed on the branch circuit at the first outlet box shall be marked to indicate that it is ___.
The first outlet of the branch circuit
210.12(A)(2)
In general, each feeder disconnect rated ___ or more and installed on solidly grounded wye electrical systems of more than 150 volts to ground, but not exceeding 1,000 volts phase-to-phase, shall be provided with ground-fault protection of equipment.
1000 A
215.10
The marking or labels for emergency service disconnects shall be located on the outside front of the disconnect enclosure with a red background and white text and letters at least ___ high and comply with 110.21(B).
1/2"
230.85(E)(2)
In general, Type MC cables containing four or fewer conductors sized no larger than 10 AWG shall be secured within ___ of every box, cabinet, fitting, or other cable termination.
12"
330.30(B)
Which of the following is the temperature correction factor based on 30°C ambient temperature if the ambient temperature is 31-35°C and the conductor has a rating of 75°C?
.94
Table 310.15(B)(1)(1)