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IEC 60287-2-3:2024

Electric cables - Calculation of the current rating - Part 2-3: Thermal resistance - Cables installed in ventilated tunnels

General information

Valid from 28.06.2024
ICS Groups
29.060.20 Cables
Directives or regulations
None

Standard history

Status
Date
Type
Name
28.06.2024
Main
IEC 60287-2-3:2024
IEC 60287-2-3:2024 is available as IEC 60287-2-3:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60287-2-3:2024 describes a method for calculating the continuous current rating factor for cables of all voltages installed in ventilated tunnels. The method is applicable to any type of cable. The method applies to natural as well as forced ventilation. Longitudinal heat transfer within the cables and the surroundings of the tunnel is assumed to be negligible. All cables are assumed to be identical within the tunnel and it is assumed that the tunnel cross-section does not change with distance along the tunnel.

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PDF
213.43 € incl tax
PDF redline
362.82 € incl tax
Paper
213.43 € incl tax
Standard monitoring
English (PDF 536 KB)

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Standards designation

EVSEstonian standard
ENEuropean standard (published by an CEN or CENELEC)
EN ISOInternational standard adopted as an European standard
ISOInternational Organization for Standardization’s standard
IECInternational Electrotechnical Commission’s standard
HDCENELEC’s harmonisation document
EVS-ENEuropean standard implemented in Estonia
EVS-EN ISOInternational standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IECInternational standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IECInternational electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
 
A, AMDamedment
+Aa full standard plus the amendment
/Aonly amendment
COR, ACcorrigendum
+CORa full standard plus the corrigendum
NAnational annex
+NAa full standard plus the national annex
/NAonly national annex
TStechnical specification
TRtechnical report
CWAagreement, developed by a CEN or CENELEC
prEVS-EN (etc)draft standard
 
etthe standard is in Estonian only
enthe standard is in English only
et-enthe standard is in Parallel text Estonian-English