ConduitFillLookUps

Conduit Fill Lookups

Area of a Square

Area of a Rectangle

Area of a Circle

Area of an Octagon

Volume of a Cube

Volume of a Box

Volume of a Cylinder

Conduit Fill Look Ups

Conduit Fill

Conduit Fill Percentage

Conduit Fill Useful Space Remaining

Nipple Fill

Nipple Fill Look Ups

Area Volume Home

Electrician Math Home

Electrician Education Home

 

Most daily calculations for conduit fill are nothing more than a look up. This is true when all conductors are the same size and type. But there may be a need to calculate conduit size when conductors of different sizes and types are expected to be installed in the same raceway. This is not uncommon.

Example: How many #10 THWN conductors will fit in a 1" PVC schedule 40 raceway?

Solution: Go to Annex C of the NEC way in the back of the book. Find the appropriate raceway table. PVC schedule 40 is table C-10. Find 15 at the intersection of THWN and 1' trade size. So 15 will fit. This does not mean you have to use a 1" for 15 conductors. Usually there is some intelligent reason to increase conduit size for large numbers of conductors which travel a long distance. But that is not code. There is no requirement to increase conduit size due to length of run.

Find practice problems HERE. MORE

Find audio support HERE.

For More on Conduit Fill, follow these Google links:

1. Designing Conduit Runs -- calculating fill factor, sizing conduits ...
2. CALCULATIONS CONDUIT FILL
3. Conduit Fill Conduit Type NEC Tables
4. Conduit Fill Capacity Table
5. www.systemswestengineers.com/fill.htm
6. Conduit Fill Table Western Extralite Company
7. Fill Calculation
8. Conduit Fill Table
9. Calculating Conduit Capacity
10. Conduit Fill E1.1

Many electrician workbooks and practice exams are now available 
as digital downloads for immediate use. 
Click HERE to see what is available.

Products For Sale
2006-2011 David U. Larson
dularson@bellsouth.net
Companion Website to ElectricianEducation.com ,
2011NEC.com and
TechnicianEducation.com
Other websites by David U. Larson which may be of interest:
VisitEuropeOnline.com

OldPostcardsForSale.com
StampDealerLots.com 
HouseFlipGuide.com
SwedenRoots.com
GreenfieldVillageOnline.com
6901st.org