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NOTE: This is an unformatted excerpt from our online fire protection training library.

Conductor Selection & Application

Introduction

Learning Objectives

Course Learning Outcomes:  Explain requirements for sizing and selecting conductors in the National Electrical Code®.

Enabling Points:

Explain the three most significant factors in sizing a conductor Define and explain ampacity Explain the four primary determinants of operating temperature: heat produced by current flow in the conductor ambient temperature ambient medium adjacent current carrying conductors Explain the table method and the engineering calculation method for determining ampacity Explain how the NEC deals with multiple ampacities Explain the difference between allowable ampacity and true ampacity Explain how the issue of ampacity is dealt with in terms of various issues, including: overcurrent devices branch circuits continuous and non-continuous loads Explain how to work with NEC requirements when they result in different required minimum conductor sizes
NOTE: This is an unformatted excerpt from our online fire protection training library.

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