IEC 60287-2-2 Ed. 1.0现行
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
出版：International Electrotechnical Committee
专家解读视频
Is applicable to any type of cable and group running horizontally, provided that the cables are of equal diameter and emit equal losses. This publication supersedes IEC 61042.
UNE 21144-2-2:1997 (R2011) - Identical
BS 7769-2.2:1997 - Equivalent
NEN 10287-2-2:1996 - Identical
CEI 20-21/2-2 Ed. 3 (2007) - Identical
