IEC 60287-3-3:2007


Language: EN Electric cables - Calculation of the current rating - Part 3-3: Sections on operating conditions - Cables crossing external heat sources

Language: FR Câbles électriques - Calcul de la capacité de transport - Partie 3-3: Sections relatives aux conditions d'exploitation - Câbles croisant des sources de chaleur externes


Language: EN Describes a method for calculating the continuous current rating factor for cables of all voltages where crossings of external heat sources are involved. The method is applicable to any type of cable. The method assumes that the entire region surrounding a cable, or cables, has uniform thermal characteristics and that the principle of superposition applies. The principle of superposition does not strictly apply to touching cables and hence the calculation method set out in this standard will produce an optimistic result if applied to touching cables

Language: EN Language: FR
Date of issue
TC 20
ICS Codes
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Mandatory Standard according current regulation Mandatory Standard according current regulation

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