IEC 60287-1-3:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Electric cables - Calculation of the current rating - Part 1-3: Current rating equations (100 % load factor) and calculation of losses - Current sharing between parallel single-core cables and calculation of circulating current losses
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
22-05-2023
English - French, English, French
21-05-2002
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Symbols
4 Description of method
4.1 General
4.2 Outline of method
4.3 Matrix solution
Annex A (informative) Example calculations
Annex B (informative) Example of the computation of
the coefficient alpha for hollow core conductors
Bibliography
Provides a method for calculating the phase currents and circulating current losses in single-core cables arranged in parallel. The method described in this standard can be used for any number of cables per phase in parallel in any physical layout. The phase currents can be calculated for any arrangement of sheath bonding. For the calculation of sheath losses, it is assumed that the sheaths are bonded at both ends. A method for calculating sheath eddy current losses in two circuits in flat formation is given in IEC 60287-1-2.
| Committee |
TC 20
|
| DevelopmentNote |
Stability Date: 2017. (09/2017)
|
| DocumentType |
Standard
|
| Pages |
39
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| DS IEC 60287-1-3 : 2002 | Identical |
| NEN IEC 60287-1-3 : 2002 | Identical |
| GOST R IEC 60287-1-3 : 2009 | Identical |
| CEI 20-21/1-3 : 2007 | Identical |
| UNE 21144-1-3:2003 | Identical |
| BS IEC 60287-1-3:2002 | Identical |
| IEEE 525-2007 | IEEE Guide for the Design and Installation of Cable Systems in Substations |
| HD 60364-4-43:2010 | Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent |
| IEC 60364-4-43:2008 | Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent |
| IEEE 848-2015 | IEEE Standard Procedure for the Determination of the Ampacity Derating Factor for Fire-Protected Cable Systems |
| I.S. HD 60364-4-43:2010 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-43: PROTECTION FOR SAFETY - PROTECTION AGAINST OVERCURRENT |
| UNE-HD 60364-4-43:2013 | Low-voltage electrical installations -- Part 4-43: Protection for safety - Protection against overcurrent |
| IEEE 575-2014 | IEEE Guide for Bonding Shields and Sheaths of Single-Conductor Power Cables Rated 5 kV through 500 kV |
| IEC 60287-1-2:1993 | Electric cables - Calculation of the current rating - Part 1: Current rating equations (100 % load factor) and calculations of losses - Section 2: Sheath eddy current loss factors for two circuits in flat formation |
| IEC 60287-2-1:2015 RLV | Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance |
| IEC 60287-1-1:2006+AMD1:2014 CSV | Electric cables - Calculation of the current rating - Part 1-1:Current rating equations (100 % load factor) and calculation of losses - General |
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