ELECTRIC CABLES - CALCULATION OF THE CURRENT RATING - PART 3-3: SECTIONS ON OPERATING CONDITIONS - CABLES CROSSING EXTERNAL HEAT SOURCES
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Symbols
4 Description of method
4.1 General description
4.2 Single source crossing
4.3 Several crossings
4.4 Rating of two crossing cables
Annex A (informative) Example calculation
Annex B (informative) Temperature rise calculation
at any point along the route
Provides a method for calculating the continuous current rating factor for cables of all voltages where crossings of external heat sources are involved.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 20 |
