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Revision Standard – Inactive – Superseded.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 |