IEC 61752-111-08:2021 contains the minimum tests, test severities and measurement requirements which a sealed fibre optic closure need to meet in order to be categorised as meeting the IEC standard for category G – Ground, as defined in Table A.14 of IEC 61753-1:2018. Free breathing closures are not covered in this document. This first edition cancels and replaces IEC 61753-111-8 published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61753-111-8: a) terms and definitions updated according to IEC 61753-1:2018 and IEC 61756-1:2019; b) test severities updated according to IEC 61753-1:2018; c) sealing tests are done with 20 kPa overpressure; d) pass-fail criterion of pressure loss during test added to mechanical sealing tests; e) vibration sealing test changed to 10 Hz, 3 mm amplitude and 1 000 000 cycles; f) reduced loads added in cable retention test for small diameter cables and tubes; g) reduced loads for cable axial compression test for small diameter cables; h) the duration of the cycles in torsion and bending test is added; i) free fall test removed (is covered by the optical shock test); j) crush resistance test of 1 000 N for 10 min is added; k) assembly and disassembly test: duration reduced to 5 cycles; l) resistance to solvents and contaminating fluids: added immersion in diesel with duration of 1 h and 24 h drying time and added immersion in petroleum jelly for 5 days; m) resistance to stress cracking solvents added for 5 days; n) duration of the change of temperature reduced to 12 cycles; o) water immersion test at 1 m for 7 days added.<\/p>\n
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| 51<\/td>\n | A-30395265 <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | 4 Abbreviated terms 5 General requirements 5.1 Storage, transportation and packaging 5.2 Installation and intervention <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | 5.3 Marking and identification 5.4 Materials <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | 5.5 Closure overpressure safety 6 Test 6.1 General 6.2 Test sample preparation 6.3 Test and measurement methods <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | 6.4 Pass\/fail criteria 6.5 Test report 7 Performance requirements 7.1 Sample size 7.2 Sealing, optical and visual examination pass\/fail criteria <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | Tables Table 1 \u2013 Sealing, optical and visual examination pass\/fail criteria <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | 7.3 Sealing performance requirements Table 2 \u2013 Sealing performance requirements <\/td>\n<\/tr>\n | ||||||
| 76<\/td>\n | 7.4 Optical performance requirements Table 3 \u2013 Optical performance requirements <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | Annex A (normative)Sample definition A.1 Fibre type for test sample Table A.1 \u2013 Fibre references for IEC 60793-2-50, sub-category B-652.D Table A.2 \u2013 Fibre references for IEC 60793-2-50, sub-category B-657.A1 <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | A.2 Closure optical test sample configuration Figures Figure A.1 \u2013 Track\/spur joint configuration sample Table A.3 \u2013 Fibre references for IEC 60793-2-50, sub-category B-657.A2 <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | Figure A.2 \u2013 Optical circuits in track\/spur joint closure Figure A.3 \u2013 Distribution joint configuration sample <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | Figure A.4 \u2013 Optical circuits in the distribution joint closure <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | Annex B (normative)Sample size Table B.1 \u2013 Sample size <\/td>\n<\/tr>\n | ||||||
| 84<\/td>\n | Annex C (normative)Intervention and reconfiguration\/resplicing C.1 Handling of the closure C.2 Movements of splice trays to gain access to the actual fibre circuits C.3 Addition and connection of drop cables C.4 Rearranging splices <\/td>\n<\/tr>\n | ||||||
| 85<\/td>\n | C.5 Rearranging optical connector sets, patchcords or pigtails (when applicable) C.6 Addition and connection of extra FMS elements C.7 Handling of the closure <\/td>\n<\/tr>\n | ||||||
| 86<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Fibre optic interconnecting devices and passive components. Performance standard – Sealed closures for Category G. Ground<\/b><\/p>\n |