Definitions
a device designed to open and close a circuit by nonmetallic means and to open the circuit automatically on a predetermined overcurrent level
circuit breaker
tables the refer to egc sizing before and after first disconnecting means
250.66 and 250.122
minimum buriel depth of a rigid conduit in a trench under a driveway
24
The NEC is publised by the _____.
NFPA - National Fire Protection Agency
The NEC is divided into how many chapters?
9 Chapters
EMT type conduit, between pulling points, cannot exceed how many degrees of bend?
360 - Degrees
constructed so that moisture will not enter the enclosure under specified test conditions
watertight
table that refers to the size of the main bonding jumper
250.102c
according to table 310.12a what size wire is required for a single family dwelling service if it is 200 amps
2/0
What is the primary purpose of the NEC?
To safeguard persons and property from electrical hazards.
What size copper grounding electrode conductor you need for an AC electrical service being feed with 2/0 copper wire?
Table 250.66
What is the smallest size NM type cable that can be attached to the bottom edge of an unfinished basement ceiling joist?
Two #6 AWG or Three #8 AWG cables. Article 334.15(C)
the greatest root-mean-square difference of potential between any two conductors of a circuit concerned
voltage
these four points are all required to be bonded at a commercial job site if available
cwp, delta, building steel, and concrete encased (upher )
according to table 310. 15 c1 what is the derating multiplying factor for a conduit that contains 7-9 current carrying conductors
70 or .70
Who makes unannounced inspections at electrical equipment factories?
NRTLs - National Reconized Testing Laboratories
The maximum distance away in "inches" away from an outlet box may romex cable be supported from an outlet box?
12" Article 334.30
The smallest AWG size wire allowed for fixture wiring?
18 AWG
a large single panel, frame, or assembly of panels on which are mounted on the face, back, or both, switches, overcurrent and other protective devices, buses, and usually instruments
switchboard
requirements for being able to install a upher ground
20' of rebar no less then 1/2" thick and bare copper conductor #4 or larger
The first edition of the NEC was produced by the _________.
National Confrence on Stadard Electrical Rules.
The are the duties of the NFPA to include?
Publishing standards to minimize the posibility of fires.
Definitions specific to a single NEC article are located _______.
In the second section of each article.
What is the NEC term for "Greenfield" ?
FMC (Flexible Metallic Conduit)
the point of connection between the facilities of the serving utility and the premises wiring =.
service point
largest copper conductor required by table 250.66
3/0
Organizations that test products for safety are _______.
NTRLs - National Recognized Testing Laboratories
Where does the following statement exist in the NEC? "Electrical equipment shall be installed in a neat and workman like manner"
Article 110.12
The NEC provides information Annexes for _________.
Informational materials and examples
Isolating switches are only accessible to who?
Only Qualified Persons