IEC 60287-3-3:2007 ED1

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

Publication date: 15 maj 2007

General information

Current stage: 60.60 Effective date: 15 maj 2007

Originator: IEC

Owner: TC 20

Type: International Standard

ICS: 29.060.20

Gjuha: anglisht frëngjisht spanjisht

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Statusi: Publikuar

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Scope

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

Life cycle

NOW

PUBLISHED
IEC 60287-3-3:2007 ED1
60.60 Standard published
15 maj 2007

REVISED BY

IN_DEVELOPMENT
IEC 60287-3-3 ED2