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IEEE C37.24 2017

IEEE C37.24 2017

$28.17

IEEE Guide for Evaluating the Effect of Solar Radiation on Outdoor Metal-Enclosed Switchgear

Published By Publication Date Number of Pages
IEEE 2017 25
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Revision Standard – Active. Information to assist in evaluating the effect of solar radiation on outdoor metal-enclosed switchgear including metal-enclosed bus and control switchboards is provided in this guide. Specific data in the form of a continuous current capability factor for specific maximum monthly normal temperatures at the installation location to adjust the continuous current capability of outdoor metal-enclosed switchgear to the solar radiation condition required are given in this guide. Examples of maximum monthly normal temperatures along with sources for data for the US and for Canada are also presented in this guide.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C37.24™-2017 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
7 Participants
9 Introduction
10 Contents
11 1. Overview
1.1 Scope
1.2 Purpose
12 1.3 General
2. Normative references
13 3. Operating limitations
14 4. External influences on internal operating temperatures
4.1 Ambient temperatures
15 4.2 Solar radiation
4.3 Wind influence
16 5. Ventilation and condensation control
6. Enclosure color and finish considerations
17 7. Current-carrying capabilities of switchgear
7.1 Metal-clad switchgear
7.2 Metal-enclosed low-voltage power circuit breaker switchgear
18 7.3 Metal-enclosed interrupter switchgear
7.4 Control switchboards
7.5 Metal-enclosed bus
7.6 Metal-enclosed gas-insulated switchgear
8. Suggested modifications of standard designs
19 9. Conclusion
20 Annex A (informative) Figures
A.1 Relation between recorded data for solar irradiation on a horizontal surface and a sine function curve
21 A.2 Current versus temperature relationship for outdoor metal-enclosed switchgear
A.3 Examples of monthly data
23 Annex B (informative) Tables
24 Annex C (informative) Bibliography
25 Back cover

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IEEE C37.24 2017
$28.17