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Monday, August 15, 2016
Question:
How many #10 thhn in a 3/4 inch conduit
Tom Edgcumbe
A
Answer:
Hey Tom thanks for your question. It depends on the type of conduit. Start at 300.17 and find the raceway you are using in the Informational Note then go to that section which will likely refer you to Chapter 9, Table 1. Note 1 to that table allows you to use Annex C if all the conductors are the same size. If you are using Rigid Metal Conduit for example Table C.8 allows 10 THHN conductors that are 10 AWG.