IEC 61212-3-2:2013 gives requirements for industrial rigid round laminated moulded tubes for electrical purposes, based on different resins and different reinforcements. Applications and distinguishing properties are given in Table 1. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Details of test for insulation resistance after immersion in water are changed. Key words: industrial rigid round laminated moulded tubes<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4 Designations and abbreviations 4.1 General 4.2 Designation 4.3 Abbreviations 5 Requirements <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Tables Table 1 \u2013 Types of industrial round moulded tubes Table 2 \u2013 Permissible deviation from nominal externaldiameter of round moulded tubes in the \u201cas moulded” condition <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Table 3 \u2013 Permissible deviation from nominal external diameter of moulded tubes in ground or turned condition, all types Table 4 \u2013 Permissible deviation from nominal internal diameter of moulded tubes Table 5 \u2013 Tolerance on wall thickness for round moulded tubes <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Table 6 \u2013 Departure from straightness for round moulded tubes <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Table 7 \u2013 Property requirements for round moulded tubes <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 8 \u2013 Electric strength at 90\u00a0\u00b0C in oil, perpendicular to laminations for round moulded tubes (1 min proof test or 20 s step-by-step test)a (kV\/mm) <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Insulating materials. Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes – Specifications for individual materials. Sheet 2: Round laminated moulded tubes<\/b><\/p>\n |