General Knowledge
A 200a electrical service is required to have ____________ ground rod(s)?
One, unless the 25 ohms to ground requirement hasn't been met then a supplemental ground rod will be required.
CR:
250.53 (A)
250.53 (A)(2) Ex.
250.53 (A)(3)
What's a Two-fer?
An assembly containing one male plug and two female cord connectors used to connect two loads to one branch circuit.
(Splitter)
Art 100 - DEF: Two-fer
When is a plastic (insulating) bushing required?
Art. 300
300.4 (G) (3)
Bonded Neutral Generators shall be provided with ________________? On all outlets.
GFCI protection
445.20 (B)
Nipple Rule? Found where? Not in 300's
Chapter Note 4
Explain the difference between a grounded conductor and a grounding conductor, be specific.
Grounded = Neutral, path back to the panel or utility, only bonded at the first means of disconnect. Usually white in color, or phased with white (grey) tape.
Grounding = Ground wire, attached to ground rods. Usually bare copper, green outer jacket or phased with green tape.
What is a conduit body?
ART 100 - DEF: Conduit Body: a separate portion of a conduit or tubing system that provides access, through a removable cover(s) to the interior of the system at a junction of two or more sections of the system or at a terminal point of the system.
I.E. LB, LR, LL, Pulling L, LC, LT
What's the minimum required depth to bury low voltage lighting? Direct bury wiring.
24" but a lesser depth shall be permitted
300.5(A)
note : A
Conductor Rating Factors for Power Resistors are found in which table?
Table 430.29
Fire Pumps overload requirements?
None required.
695.6 (C)
Explain the Main Bonding Conductor.
What's the MINIMUM SIZE?
Be specific
Minimum #6
Ground wire attachment to building steel, cold water ground, or gas pipe.
Must also travel back to the first means of disconnect.
Code requirements for a house boat?
90.2 (D)
Adjustment factors for 22 current carrying conductors?
Percentage?
45% deration, 310.15(C)(1)
Capacitors are measured in Farad's, what article covers this?
Art 460
What is the COPS system?
Critical Operations Power Systems
ART 708
Explain to me what a Ufer Ground is.
Concrete encased electrode. Typically attached through exothermic welding to rebar. Requires at least 20' of rebar encased in concrete with a stubbed-up connection point left accessible to connect to the future grounding system.
Maximum Water Level? (I.E. for a pool)
ART 100 - DEF: Maximum Water Level
The highest level that water can reach before it spills out.
Double Jeopardy!!!
Place Your Bets...
Nut Sack Chart...
Note *
The above not is Also Known As What?!
Class II locations cover what combustible item?
DUST
502.1
Network Powered Broadband Communication Systems minimum cover requirement...
Direct Burial Cables, under 4" concrete slab with no vehicular traffic.
12"
830.47(A)
What's the maximum angle at which you can drive a ground rod? Is there any exception to this angle?
45* when driving into the earth, exception would be laying it flat in the ditch while maintaining all required spacing.
Interrupting rating of Distribution Cutouts and Fuse Links?
245.21 (C) (3)
Not less than available fault current the cutout is required to interrupt, including contributions from all connected sources of energy.
Maximum length of a Built-In Dishwasher's cord?
6.5' measured from the face of the attachment plug to the plane of the rear of the appliance.
CR: 422.16 (2)(2)
Where is GFCI protection not permitted when it comes to Rides, Tents, and Concessions?
525.23 (C)
A fiber splice is located in a coyote box. Where would I find the fiber temperature limitations?
770.27