CEI 20-21/3-1 : 2007
Current
The latest, up-to-date edition.
ELECTRIC CABLES - CALCULATION OF THE CURRENT RATING - PART 3-1: SECTIONS ON OPERATING CONDITIONS - REFERENCE OPERATING CONDITIONS AND SELECTION OF CABLE TYPE
Hardcopy , PDF
English
01-01-2007
FOREWORD
INTRODUCTION
1 Scope
2 Normative reference
3 Reference ambient temperatures and thermal resistivities
of soil in various countries
4 Values relating to the operating conditions in various
countries
5 Information required from the purchaser for the selection of
the appropriate type of cable
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