BS EN 61057:2017:2018 Edition
$215.11
Live working. Insulating aerial devices for mounting on a chassis
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 92 |
This document is applicable to insulating aerial devices for mounting on a chassis, to be used for live working on electrical installations at nominal voltages above 1 000V r.m.s. AC in the range 45 Hz to 65 Hz and 1 500V DC.
The primary purpose of an aerial device is for work positioning of personnel. Other devices, such as jibs, may be fitted in order to assist the operator in performing the work.
This document also includes requirements and tests for the parts of the chassis influencing the performance of the insulating aerial devices to be used for live working.
When mounted on a chassis, the insulating aerial device becomes a component of a mobile elevating work platform (MEWP). Complementary requirements for the resulting MEWP are included in ISO 16368 .
NOTE 1
In Europe, EN 280 instead of ISO 16368 is often used as reference for complementary requirements.
The products designed and manufactured according to this document contribute to the safety of users, provided they are used by skilled persons, in accordance with safe methods of work and the instructions for use.
NOTE 2
Any requirements that are in conflict with or are meant to be complementary to ISO 16368 are delineated herein.
Radial boom (digger) derricks are not covered by this document.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | English CONTENTS |
| 10 | FOREWORD |
| 12 | INTRODUCTION |
| 13 | 1 Scope 2 Normative references |
| 14 | 3 Terms and definitions |
| 23 | 4 Specific terms and nomenclature |
| 25 | Figures Figure 1 – Specific terms |
| 26 | 5 Requirements 5.1 Controls 5.1.1 Activation and operation Figure 2 – Nomenclature |
| 27 | 5.1.2 Duplicate controls 5.1.3 Emergency stop |
| 28 | 5.1.4 Control of outriggers 5.1.5 Monitoring of radio and optical fibre controls 5.1.6 High electrical resistance upper control system(s) 5.2 Failure of the source of power 5.3 Restoration of power after failure 5.4 Boom travel protection |
| 29 | 5.5 Chassis inclination 5.6 Locking pins 5.7 Electrical requirements 5.7.1 Insulating systems 5.7.2 Insulating booms (including lower boom insulating insert / chassis insulating system) |
| 30 | 5.7.3 Non-conductive/insulating hydraulic hoses and lines 5.7.4 Insulating fixed handling tools 5.7.5 Insulating optical fibre cables 5.7.6 Equipotential bonding |
| 31 | 5.7.7 Lower test electrode system Figure 3 – Typical equipotential bonding arrangement |
| 34 | Figure 4 – Leakage current monitoring |
| 35 | 5.7.8 Corona effect 5.7.9 Gradient control devices 5.7.10 Chassis insulating system bypass |
| 36 | 5.7.11 Chassis earthing system 5.8 Particular mechanical requirements 5.8.1 Structural design Figure 5 – Example of temporary bypassing arrangement for chassis insulating system |
| 37 | 5.8.2 Stability 5.8.3 Wind speed 5.9 Speeds of the extending structure 5.10 Load sensing 5.11 Requirements for the hydraulic system 5.11.1 Hydraulic depressurization (vacuum protection) 5.11.2 Hydraulic pressure rise 5.11.3 System protection |
| 38 | 5.11.4 Overriding safety devices 5.11.5 Pressure limiting device 5.11.6 Bursting strength – hoses and fittings 5.11.7 Fluid level indicators 5.11.8 Fluid cleanliness 5.12 Requirements for the platforms 5.12.1 Platform security 5.12.2 Platform levelling |
| 39 | 5.12.3 Guardrail system 5.12.4 Baskets 5.12.5 Personnel safety attachments (and attachment for fall protection) 5.13 Marking |
| 40 | 5.14 Instructions for use 5.15 Dimensions and mass 6 Tests 6.1 General |
| 41 | 6.2 Visual and dimensional check 6.3 Design check and functional testing 6.4 Durability of markings 6.5 Dye penetration test of insulating foam-filled booms |
| 42 | 6.6 Electrical tests 6.6.1 General 6.6.2 Electrical tests for insulating booms, insulating fixed handling tools and optical fibre cables |
| 44 | Figure 6 – AC dielectric test before and after exposure to humidity (method A) – Typical test arrangement |
| 46 | Figure 7 – AC dielectric tests before and after exposure to humidity (method A) – Assembly diagram of the test piece to the guard electrodes |
| 47 | Figure 8 – AC dielectric tests before and after exposure to humidity (method A) – Constructional drawings for guard electrodes and parts |
| 48 | Figure 9 – AC dielectric tests before and after exposure to humidity (method A) – Constructional drawings for brass electrode and for insulating support parts according to test piece |
| 50 | Figure 10 – Details of electrode arrangement Figure 11 – Test arrangement |
| 52 | Figure 12 – DC dielectric test before and after water soaking (method B) – Typical test arrangement |
| 54 | 6.6.3 Test of insulating baskets or liners Figure 13 – Preparation of optical fibre cable test piece for test after the infliction of a gash |
| 55 | 6.6.4 Dielectric test of the insulating fixed handling tools Figure 14 – Test of insulating basket or liner |
| 56 | 6.7 Dielectric tests of the insulating systems of the complete aerial devices 6.7.1 General 6.7.2 Aerial devices with lower test electrode system |
| 57 | Figure 15 – Test of the upper insulating system of deviceswith lower test electrode system |
| 58 | Tables Table 1 – Values for AC dielectric tests of the upper insulatingsystem of devices with lower test electrode system |
| 59 | 6.7.3 Aerial devices without lower test electrode system Table 2 – Values for DC dielectric tests of the upper insulatingsystem of devices with lower test electrode system |
| 61 | Figure 16 – Test of the upper insulating system of devices without permanently installed lower test electrode system |
| 62 | Table 3 – Dielectric test for aerial devices without lower test electrode system |
| 64 | Figure 17 – Dielectric test for insulating insert/chassis insulating system Figure 18 – Test of high electrical resistance component(s) |
| 65 | 6.8 Lower test electrode system 6.9 Equipotential bonding 6.10 Mechanical tests 6.10.1 Mechanical tests on insulating boom with its fittings |
| 66 | 6.10.2 Platform creep 6.10.3 Hydraulic depressurization (vacuum protection) |
| 67 | 6.11 Design and functional tests 7 Conformance testing of aerial devices after completion of the production phase 8 Modifications |
| 68 | Annex A (informative)Guidelines for selecting the characteristics of insulating aerial devicesas a function of the live working methods A.1 General A.2 Bare hand live working A.3 Live line tool, distance or hot stick working |
| 69 | A.4 Insulating (rubber) glove working A.5 Use under DC A.6 Advice for buyers of insulating aerial devices meeting the requirements of this document not intending to make use of them for live working |
| 70 | Annex B (normative)Suitable for live working; double triangleIEC-60417-5216:2002-10 |
| 71 | Annex C (normative)General type test procedure Table C.1 – List and chronological order (where required) of type tests |
| 73 | Annex D (normative)Classification of defects and tests to be allocated Table D.1 – Classification of defects and associated requirements and tests |
| 75 | Annex E (informative)Care and maintenance E.1 General E.2 Care of insulating components E.2.1 Care whilst in transit E.2.2 Care during work activities |
| 76 | E.2.3 Storage E.3 Maintenance of insulating components E.3.1 General E.3.2 Cleaning |
| 77 | E.3.3 Siliconing or waxing E.4 Inspection of insulating components E.4.1 General E.4.2 Pre-start inspection |
| 78 | E.4.3 Frequent and annual inspections of aerial devices E.5 Tests E.5.1 Periodic electrical tests |
| 79 | Table E.1 – Electrical test values for periodic electrical testing of insulating aerial devices with lower test electrode system for AC applications Table E.2 – Electrical test values for periodic testing of insulating aerial deviceswithout lower test electrode system for AC applications |
| 80 | Table E.3 – Electrical test values for periodic electrical testing of insulating components of aerial devices for AC applications Table E.4 – Electrical test values for periodic electrical testing of insulating aerial devices with lower test electrode system for DC applications |
| 82 | Figure E.1 – DC only test of the upper insulating system of deviceswithout permanently installed lower test electrode system |
| 84 | E.5.2 Mechanical test – Acoustic emission testing Figure E.2 – DC only test of insulating lower boom insertor chassis insulating system |
| 85 | E.6 Records E.7 Repairing/refurbishing |
| 86 | E.8 Overriding safety devices E.9 Care, maintenance and periodic inspection when insulating aerial devices are for other uses than live working |
| 87 | Annex F (informative)Hydraulic depressurization (vacuum protection)(see 5.11.1 and 6.10.3) F.1 General F.2 In-line check valves F.2.1 General F.2.2 Testing the in-line check valves (typical test procedure – reference Figure F.1) |
| 88 | F.3 Atmospheric check valve assembly F.3.1 General Figure F.1 – In-line check valve test for the insulating boom vacuum protection system |
| 89 | F.3.2 Testing the atmospheric check valves (typical test procedure – reference Figure F.2) Figure F.2 – Atmospheric check valve assembly test for the insulatingboom vacuum protection system |
| 90 | Table F.1 – Allowable vacuum formation within hydraulic lines (adjusted for altitude) |
| 91 | Bibliography |
