IEC 61666:2010 establishes general principles for the identification of terminals of objects within a system, applicable to all technical areas (for example mechanical engineering, electrical engineering, construction engineering, process engineering). They can be used for systems based on different technologies or for systems combining several technologies. This second edition cancels and replaces the first edition of IEC 61666 published in 1997 and edition constitutes a technical revision. It includes the following substantial changes with respect to the previous edition: – the terminology used in the publication has been adapted to the one used in IEC 81346-1 Ed. 2; – a more comprehensive description of the designation principles is provided; – additional examples illustrating terminal designations related to the function aspect and location aspect are provided; – an additional example illustrating the use of terminal designation sets is provided; – the former informative Annex A has been turned into a clause in the standard. It has the status of a horizontal standard in accordance with \/2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4 Terminal designation 4.1 General Figures Figure 1 \u2013 Principle of terminal designation <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4.2 Designation of terminals with respect to the product aspect <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4.3 Designation of terminals with respect to the function aspect Figure 2 \u2013 Example of designation of terminals for a 3-phase squirrel-cage motor <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.4 Designation of terminals with respect to the location aspect Figure 3 \u2013 A device shown with function labels on which the terminal designations related to the function aspect are based, as well as terminal designations (pins) related to the product aspect Figure 4 \u2013 Example of a symbol for a motor starter provided with terminal designations related to the function aspect <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.5 Terminal designation set Figure 5 \u2013 Example of a terminal board for cross-connection where the terminals are designated related to their location aspect <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Figure 6 \u2013 Example of a terminal designation set Figure 7 \u2013 Example of a design with terminal designations related to the function aspect <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5 Classification of terminals Figure 8 \u2013 Example of an implemented design based on Figure 7 with terminal designations related to the product aspect Figure 9 \u2013 Example of an implemented design based on Figure 7 with terminal designation sets related to the function and product aspects <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex A (informative) Examples of terminal designations not specified by a manufacturer Figure A.1 \u2013 Four terminal blocks composing one terminal assembly (each terminal block is considered as an object) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Figure A.2 \u2013 One terminal block with eight terminals (the complete unit is an object) Figure A.3 \u2013 One terminal block with eight terminals with two entry points each <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Industrial systems, installations and equipment and industrial products. Identification of terminals within a system<\/b><\/p>\n |