NEC
This is Chapter 1
What is General?
Of the three primary metal raceway types, this one does not require threading
What is Electrical Metallic Tubing (EMT)?
When bending a 90o bend, this is the end bent up into the air. Usually the shorter end.
What is the stub/stub up?
This is the most commonly used angle for bending offsets due to its easy to remember multiplier of 2.
What is 30 degrees?
In a three-bend saddle, you must add this variable to the center mark to keep your bend centered over the obstruction.
What is shrink?
Wiring Methods and what other topic are in Chapter 3
What is Materials
This is the Largest size EMT you can bend with a hand bender
What is 1 1/4"?
To make a stub 90o that is 39 inches long with 1/2" EMT (using a standard hand bender), you would need to place your pencil mark at this distance from the end of the conduit.
What is 34"?
This angle's distance multiplier is 1.41
What is 45 degrees?
Mathematically, a three bend saddle can be viewed as two of this other kind of bend put together.
What is an offset?
This chapter gives values for wire sizes
What is Chapter 9
This is the Largest size RMC you can bend with a hand bender
What is 1"?
Stub 90s are always measured to this side of the bend.
What is the back(outside) of the 90?
To bend an offset with 30 degree bends to clear an obstruction 4 inches high, the bend marks must be this far apart.
What is 8 inches?
To find the total overall length of a conduit with a three bend saddle you must add the shrink value this many times.
What is two?
This is the topic for Chapter 5
What is Special Occupansies
This article in the NEC gives all the code requirements for EMT.
What is Article 358?
To cut a conduit to the correct length before bending a 90o, you must first adjust for this.
What is the gain?
The smallest offset is
Box offset
When making calculations for a three-bend saddle, all calculations are made off of this bend angle
(Larger or smaller angle)
What is the smaller angle?
Name all topics 1-9 in order
General, Wiring and Protection, Wiring Methods and Materials, Equipment for General Use, Special Occupancies, Special Equipment, Special Conditions, Communications Systems, Tables
This is the support distance for EMT
What is 10'
What is the take-up for 1 1/4" EMT
What is 11"
Shrink for a 60 degree bend is
1/2"
The distance modifier for a 45 degree center 3 point bend
What is 2.5"