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IEC 60287-2-2 : 1.0

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IEC 60287-2-2 : 1.0

ELECTRIC CABLES - CALCULATION OF THE CURRENT RATING - PART 2: THERMAL RESISTANCE - SECTION 2: A METHOD FOR CALCULATING REDUCTION FACTORS FOR GROUPS OF CABLES IN FREE AIR, PROTECTED FROM SOLAR RADIATION

International Electrotechnical Committee

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Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 List of symbols<br>4 Method<br>5 Values of clearance to avoid a reduction in <br>&nbsp;&nbsp;&nbsp;&nbsp;current-carrying capacity<br>6 Procedures to derive the reduction coefficient<br>&nbsp;&nbsp;&nbsp;&nbsp;for grouped cables<br>Figures

Abstract

The method described in this International Standard is applicable to any type of cable and group running horizontally, provided that the cables are of equal diameter and emit equal losses.

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Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 20
Supersedes
  • IEC 1042 : 1ED 91
  • IEC 60287 : 82 AMD 3 93