BS EN 61914:2016 – TC:2020 Edition
$217.84
Tracked Changes. Cable cleats for electrical installations
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 80 |
IEC 61914:2015 is available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61914:2015 specifies requirements and tests for cable cleats and intermediate restraints used for securing cable in electrical installations. Cable cleats provide resistance to electromechanical forces where declared. This standard includes cable cleats that rely on a mounting surface specified by the manufacturer for axial and/or lateral retention of cables. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Additional declaration and test for lateral load retention depending on cleat mounting orientation with associated new figures; b) Additional declaration of the distance between the cable centres in any short-circuit test and associated new figures; c) Specification of the cable to be used in short-circuit testing and relaxation of the ambient temperature limits for the test; d) Additional requirement to photograph the short-circuit test arrangement before and after the test and to record more complete details of the cable used; e) Revised parameters for the test of resistance to UV light. This edition also includes the following editorial changes with respect to the previous edition: f) Revised and updated normative references and bibliography; g) Editorial clarification of definitions; h) Editorial clarification of procedures for selection of test samples and the testing of cleats designed for more than one cable; i) Relaxation of some mandrel material requirements; j) Clarification of the inspection requirements following a short-circuit test and adding the option of either a.c. or d.c. voltage testing following a second short-circuit; k) Clarification that the resistance to corrosion test applies to all types of fixing; l) New cleat example illustration; m) Limitations of use of the formulae in Annex B added.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 52 | English CONTENTS |
| 54 | FOREWORD |
| 56 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations |
| 58 | 4 General requirements 5 General notes on tests |
| 59 | 6 Classification 6.1 According to material 6.1.1 Metallic 6.1.2 Non-metallic 6.1.3 Composite 6.2 According to maximum and minimum temperature Tables Table 1 – Maximum temperature for permanent application Table 2 – Minimum temperature for permanent application |
| 60 | 6.3 According to resistance to impact 6.3.1 Very light 6.3.2 Light 6.3.3 Medium 6.3.4 Heavy 6.3.5 Very heavy 6.4 According to type of retention or resistance to electromechanical forces or both 6.4.1 General 6.4.2 With lateral retention 6.4.3 With axial retention 6.4.4 Resistant to electromechanical forces, withstanding one short circuit 6.4.5 Resistant to electromechanical forces, withstanding more than one short circuit 6.5 According to environmental influences 6.5.1 Resistant to ultraviolet light for non-metallic and composite components 6.5.2 Resistant to corrosion for metallic and composite components 7 Marking and documentation 7.1 Marking |
| 61 | 7.2 Durability and legibility 7.3 Documentation 8 Construction 9 Mechanical properties 9.1 Requirements |
| 62 | 9.2 Impact test |
| 63 | Figures Figure 1– Typical arrangement for impact test |
| 64 | 9.3 Lateral load test Table 3 – Impact test values |
| 65 | 9.4 Axial load test Figure 2 – Typical arrangements for lateral load test |
| 66 | Figure 3 – Typical arrangement for axial load test |
| 67 | 9.5 Test for resistance to electromechanical force 9.5.1 General Figure 4 – Typical assemblies for test for resistance to electromechanical force |
| 68 | Figure 5 – Typical arrangement of three cables in trefoil formation Figure 6 – Typical arrangement of cables in flat formation |
| 69 | 9.5.2 For cable cleats and intermediate restraints classified in 6.4.4 9.5.3 For cable cleats and intermediate restraints classified in 6.4.5 10 Fire hazards 10.1 Flame propagation |
| 70 | 10.2 Smoke emission 10.3 Smoke toxicity Figure 7 – Typical arrangement of the needle-flame test |
| 71 | 11 Environmental influences 11.1 Resistance to ultraviolet light 11.2 Resistance to corrosion 11.2.1 General |
| 72 | 11.2.2 Salt spray test 12 Electromagnetic compatibility 12.1 Electromagnetic emission 12.2 Inductive heating Table 4 – Resistance to corrosion |
| 73 | Annex A (informative) Examples of cable cleats |
| 74 | Annex B (informative) Calculation of forces caused by short-circuit currents B.1 Characteristics Figure B.1 – Short-circuit current of a far-from-generator short circuit with constant a.c. component |
| 75 | B.2 Specification of the test current B.3 Calculation of the mechanical forces between conductors Figure B.2 – Short-circuit current of a near-to-generator short circuit with decaying a.c. component |
| 76 | Figure B.3 – Two parallel conductors |
| 78 | Bibliography |
