IEC 60669-2-6:2012 is applicable to fireman’s switches used for the breaking of the low-voltage circuits for exterior and interior signs and luminaires e.g. neon signs for a.c. only with a rated voltage not exceeding 440 V and a rated current not exceeding 125 A. This publication is to be read in conjunction with \/2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 11<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4 General requirements 5 General notes on tests 6 Ratings 7 Classification <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 8 Marking 9 Checking of dimensions 10 Protection against electric shock 11 Provision for earthing 12 Terminals <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Tables Table 2 \u2013 Relationship between rated currents and connectable cross-sectional areas of copper conductors for screw type terminals <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Table 3 \u2013 Tightening torque for verification of the mechanical strength of screw-type terminals <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Table 4 \u2013 Test values for flexion and pull-out for copper conductors Table 5 \u2013 Test values for pull-out test Table 6 \u2013 Composition of conductors <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 13 Constructional requirements Table 7 \u2013 Relationship between rated currents and connectable cross-sectional areas of copper conductors for screwless terminals Table 8 \u2013 Test current for the verification of electrical and thermal stresses in normal use of screwless terminals Table 9 \u2013 Cross-sectional areas of rigid copper conductors for deflection test of screwless terminals Table 10 \u2013 Deflection test forces <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 14 Mechanism Figure 101 \u2013 Minimum area of visibility <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 15 Resistance to ageing, protection provided by enclosures of switches and resistance to humidity 16 Insulation resistance and electric strength <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 17 Temperature rise 18 Making and breaking capacity 19 Normal operation Table 101 \u2013 Test voltage across the open contacts for verifying the suitability for isolation, referred to the rated voltage of the fireman’s switch and to the altitude where the test is carried out Table 15 \u2013 Temperature-rise test currents and cross-sectional areasof copper conductors <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 20 Mechanical strength 21 Resistance to heat <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 22 Screws, current-carrying parts and connections 23 Creepage distances, clearances and distances through sealing compound 24 Resistance of insulating material to abnormal heat, to fire and to tracking 25 Resistance to rusting 26 EMC requirements <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 102 \u2013 Sketches showing the application of blows <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Switches for household and similar fixed electrical installations – Particular requirements. Fireman’s switches for exterior and interior signs and luminaires<\/b><\/p>\n |