Skip to main content
Tagasi

IEC 60287-2-3:2017

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

Üldinfo

Kehtetu alates 28.06.2024
Tegevusala (ICS grupid)
29.060.20 Kaablid
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
28.06.2024
Põhitekst
11.04.2017
Põhitekst
IEC 60287-2-3:2017 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.

Nõutud väljad on tähistatud *

*
*
*
PDF
196,66 € koos KM-ga
Paber
196,66 € koos KM-ga
Standardi monitooring