IEEE 738 2007
$58.50
IEEE Standard for Calculating the Current-Temperature of Bare Overhead Conductors
| Published By | Publication Date | Number of Pages |
| IEEE | 2007 | 69 |
Revision Standard – Inactive – Superseded. weather conditions, is presented. Along with a mathematical method, sources of the values to be used in the calculation are indicated. This standard does not undertake to list actual temperature-ampacity relationships for a large number of conductors, but rather provides a standard method of doing such calculations.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std 738-2006 Front Cover |
| 6 | Introduction |
| 7 | Notice to users Participants |
| 10 | CONTENTS |
| 11 | IEEE Standard for Calculating the Current-Temperature of Bare Overhead Conductors 1. Overview 1.1 Scope |
| 12 | 1.2 Disclaimer 2. Definitions |
| 13 | 3. Temperature calculation methods |
| 14 | 3.1 Steady-state calculations |
| 15 | 3.2 Transient calculations |
| 16 | 3.3 Units and identification of letter symbols |
| 18 | 3.4 Formulas |
| 21 | 3.5 Equations for air properties, solar angles, and solar heat flux |
| 26 | 3.6 Sample calculations |
| 32 | 4. Input data 4.1 Introduction 4.2 Wind and ambient temperature |
| 34 | 4.3 Air density, viscosity, and conductivity 4.4 Emissivity and absorptivity 4.5 Solar heat gain 4.6 Conductor heat capacity |
| 35 | 4.7 Maximum allowable conductor temperature |
| 36 | 4.8 Time step Annex A (informative) English unit equivalents for SI units used in this standard |
| 49 | Annex B (informative) Listing of the “RATEIEEE” program for steady-state and transient calculations of temperature and thermal rating for bare overhead conductors |
| 61 | Annex C (informative) Sample calculations of steady-state conductor temperature |
| 62 | Annex D (informative) Sample calculation of steady-state thermal rating |
| 63 | Annex E (informative) Sample calculation of transient conductor temperature with a step increase in current |
| 65 | Annex F (informative) Sample calculation of transient thermal rating |
| 66 | Annex G (informative) Thermal time constant |
| 68 | Annex H (informative) Bibliography |
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