Box Fill
This is the number of volume allowances (based on the size of the largest conductor connected to it) for a receptacle in a 4 square box.
What is two?
This simple table shows the percentage of the cross section of conduit and tubing required for 1, 2, or over 2 conductors and cables.
What is Chapter 9, Table 1?
This is the place in the NEC which says a multiconductor cable shall be treated as a single conductor for conduit fill.
What is note 9 to Chapter 9 Tables on page 679?
This is the allowable ampacity of six current carrying 8AWG aluminum THHW conductors in EMT at an ambient temperature of 20 degrees Celsius, in a dry location.
What is 38.9 Amps?
I want to put 24V landscape lighting in my backyard along a walkway. This is how deep I need to bury the cable.
What is 6 inches?
The minimum volume for a 4 11/16 X 2 1/8" square box.
What is 42 cubic inches?
This is the maximum length allowed in order for a raceway to be considered a nipple.
What is 24 inches?
This is the type of transformer connection which provides 120V/208V and 277V/480V options.
What is a wye connection?
This code reference tells you if you can use the next higher standard OCPD above the ampacity rating of the conductor if there is no corresponding standard fuse or circuit breaker size.
What is 240.4(B) or (C)?
The basic formula for power (in Watts) is Resistance times ____________.
What is current squared?
The front edge of a box or plaster ring shall not be set back of a noncombustible surface more than this amount or an extender will need to be used.
What is 1/4 inch?
Which Annex C table easily tells you how many #4AWG THWN conductors you can pull through a 2" Flexible Metal Conduit?
What is Table C.3?
I want to be an electrician for a carnival so I can travel the country and be a "carnie" worker. This is the code article I would reference the most.
What is article 525?
Carnivals, Circuses, Fairs, and Similar Events
The maximum overcurrent protection generally allowed for a #12 AWG copper conductor.
What is 20 amperes?
This is the maximum percent fill area for a 2" EMT that is 23" long that connects two enclosures.
What is 60%?
This is the maximum number (volume allowances) of #10 AWG conductors I can install in a 4 square 2 1/8" deep box that has a box extension marked "3.0 cu. in.".
What is 13?
This is the maximum fill in cubic inches for Schedule 80 4" PVC with 6 conductors pulled in.
What is 4.503 cubic inches?
They must be the same length, same material, same size,same insulation type, and be terminated in the same manner.
What are the requirements for paralleled conductors?
This is the table I would use to find the ampacity of a single conductor with a 2000V rating in free air, and insulation rated at 482 degrees Fahrenheit, based on ambient temperature of 40 degrees Celsius.
What is Table 310.15(B)(19)?
This is the maximum overcurrent protection generally allowed for a #10 AWG copper conductor.
What is 30 amperes?
How many volume allowances are needed for a box that has 2 conductors pulled straight through; 2 conductors (hot and neutral) and an EGC spliced with pigtails to a duplex receptacle which is the end of that branch circuit run; along with another hot and neutral in a 14 inch loop left inside the box for possible future use?
What is 9?
This is the number of 8 AWG THHW COMPACT conductors that can be installed in 1" Liquidtight Flexible Metal Conduit (LFMC aka Sealtite).
What is 7?
This code making panel is in charge of Article 314 which is titled: Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures.
What is Code Making Panel Number 9?
If I have conductors pulled in EMT on a rooftop exposed to sunlight, and the bottom of the EMT is 1" above the rooftop, I need to add this many degrees in Celsius to the outdoor ambient temperature to correct the ampacity.
What is "none"? (Or zero).
This is the maximum number of 500 kcmil THHN conductors that can be installed in a run of 6 inch X 6 inch nonmetallic wireway.
What is 10?