IEC 61112:2009 is applicable to electrical insulating blankets for the protection of workers from accidental contact with live or earthed electrical conductors, apparatus or circuits and avoidance of short circuits on electrical installations. This second edition cancels and replaces the first edition, published in 1992, and its Amendment 1 (2002). This edition constitutes a technical revision. It includes the following significant technical changes from the previous edition: – general review of the requirements and test provisions; – limitation of the scope in terms of the minimum width of electrical insulating blankets in rolls; – preparation of the elements of evaluation of defects, and general application of IEC 61318 Ed.3; – revision of existing annexes; – deletion of Annexes D and F, not applicable according to IEC 61318 Ed.3; – introduction of a new normative Annex F on classification of defects.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Requirements 4.1 General 4.2 Classification 4.3 Physical requirements Tables Table 1 \u2013 Special properties <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Figures Figure 1 \u2013 Example of plain design Figure 2 \u2013 Example of slotted design <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 2 \u2013 Common lengths and widths for electrical insulating blankets Table 3 \u2013 Maximum thickness for electrical insulating blankets <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.4 Mechanical, climatic and environmental requirements 4.5 Dielectric requirements 4.6 Marking <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.7 Packaging 4.8 Instructions for use 5 Tests 5.1 General <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.2 Visual inspection and measurements <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.3 Marking 5.4 Packaging and instructions for use 5.5 Mechanical tests <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure 3 \u2013 Plan view of the dumb-bell test piece <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figure 4 \u2013 Test plates and needle for resistance to mechanical puncture <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.6 Dielectric tests Figure 5 \u2013 Tear resistance test <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Figure 6 \u2013 Test set-up for voltage proof test of electrical insulating blankets with standard type of electrodes <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Table 4 \u2013 Maximum electrode clearance for proof tests <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Figure 7 \u2013 Test set-up for voltage proof test of electrical insulating blankets with alternative type of electrodes <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 8 \u2013 Test set-up for voltage withstand test <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.7 Ageing tests Table 5 \u2013 Test voltages <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.8 Thermal tests <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Figure 9 \u2013 Test set-up for low and extremely low temperature folding tests <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 6 Tests on electrical insulating blankets with special properties 6.1 General 6.2 Category A: Acid resistance 6.3 Category H: Oil resistance 6.4 Category Z: Ozone resistance <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Figure 10 \u2013 Ozone resistance \u2013 Method B test set-up <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 6.5 Category M: Mechanical puncture resistance 6.6 Category C: Extremely low temperature folding test 7 Conformity assessment of electrical insulating blankets having completed the production phase <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 8 Modifications <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex A (informative) Guidelines for the selection of the class of electrical insulating blankets in relation to nominal voltage of a system Table A.1 \u2013 Designation maximum use voltage <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Annex B (informative) In-service care and testing <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Annex C (normative) Suitable for live working; double triangle (IEC 60417-5216 (2002-10)) <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Annex D (normative) General type test procedure Table D.1 \u2013 List and chronological order of type tests <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex E (normative) Liquid for tests on electrical insulating blankets of category H \u2013 Oil resistance Table E.1 \u2013 Characteristics of oil no. 1 <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Annex F (normative) Classification of defects and tests to be allocated Table F.1 \u2013 Classification of defects and associated requirements and tests <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Live working. Electrical insulating blankets<\/b><\/p>\n |