Live working - Insulating aerial devices for mounting on a chassis

IEC 61057:2017 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. This second edition cancels and replaces the first edition published in 1991 and IEC TS 61813:2000. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a)   general review of the requirements and test provisions; b)   preparation of the elements of evaluation of defects, and general application of IEC 61318:2007; c)   distinguishes between tests for hollow booms and those for foam filled booms; d)   references ISO 16368 for particular mechanical tests; e)   further information on vacuum protection and leakage current monitoring and a mandatory requirement that aerial devices for bare hand work be fitted with a permanently installed lower test electrode system; f)    controls of high electrical resistance; g)   reference to SAE for insulating hydraulic hoses; h)   inclusion of IEC TS 61813 for care, maintenance and in-service testing of aerial devices with insulating booms.

Arbeiten unter Spannung - Isolierende Hubarbeitsbühnen für die Montage auf einem Fahrgestell

Travaux sous tension - Dispositifs élévateurs isolants pour montage sur un châssis

L'IEC 61057:2017 s'applique aux dispositifs élévateurs isolants destinés à être montés sur un châssis, utilisés pour les travaux sous tension sur les installations électriques à des tensions nominales supérieures à 1 000 V en courant alternatif en valeur efficace dans la plage comprise entre 45 Hz et 65 Hz et à 1 500 V en courant continu. Cette deuxième édition annule et remplace la première édition, parue en 1991, ainsi que l’IEC TS 61813:2000. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a)   examen général des exigences et dispositions d'essai; b)   préparation des éléments d'évaluation des défauts et application générale de l'IEC TS 61318:2007; c)   distinction entre les essais pour bras creux et ceux pour bras remplis de mousse; d)   référence à l'ISO 16368 pour les essais mécaniques particuliers; e)   de plus amples informations sur la protection contre le vide et le contrôle du courant de fuite ainsi qu’une exigence obligatoire selon laquelle les dispositifs élévateurs destinés à des travaux au potentiel doivent être équipés de manière permanente d’un système d’électrode d’essai inférieure; f)    contrôles de la résistance électrique élevée; g)   référence à SAE pour les flexibles hydrauliques isolants; h)   inclusion de l’IEC TS 61813 concernant les précautions à prendre, l’entretien et les essais en service des élévateurs à bras isolants.

Delo pod napetostjo - Izolacijske naprave za montažo na ohišja

Ta dokument se uporablja za izolacijske naprave za montažo na ohišja, ki so namenjene za delo pod napetostjo pri električnih napeljavah z nazivnimi napetostmi nad 1000 V RMS pri izmeničnem toku 45–65 Hz in 1500 V pri enosmernem toku.
Primarni namen teh naprav je namestitev pri delu osebja. Namestiti je mogoče tudi druge naprave (npr. ročice), ki so upravljavcu v pomoč pri izvajanju del.
Ta dokument vključuje tudi zahteve in preskuse za dele ohišij, ki vplivajo na lastnosti izolacijskih naprav, ki se uporabljajo za delo pod napetostjo.
Izolacijska naprava, nameščena na ohišju, postane sestavni del premične dvižne delovne ploščadi (MEWP). Dopolnilne zahteve glede ploščadi MEWP so zajete v standardu ISO 16368.
OPOMBA 1: V Evropi se kot referenca za dopolnilne zahteve namesto standarda ISO 16368 pogostokrat uporablja standard EN 280.
Proizvodi, zasnovani in izdelani v skladu s tem dokumentom, prispevajo k varnosti uporabnikov, kadar jih uporabljajo usposobljene osebe v skladu z varnimi metodami dela in navodili za uporabo.
OPOMBA 2: Morebitne zahteve, ki so v nasprotju z določili standarda ISO 16368 ali jih predvidoma dopolnjujejo, so razčlenjene v tem dokumentu.
Ta dokument ne zajema žerjavov z radialno roko (kopač).

General Information

Status
Published
Publication Date
19-Oct-2017
Current Stage
6060 - Document made available
Due Date
20-Oct-2017
Completion Date
20-Oct-2017

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SLOVENSKI STANDARD
SIST EN 61057:2018
01-januar-2018
1DGRPHãþD
SIST EN 61057:2001
Delo pod napetostjo - Izolacijske naprave za montažo na ohišja
Live working - Insulating aerial devices for mounting on a chassis
Ta slovenski standard je istoveten z: EN 61057:2017
ICS:
13.260 9DUVWYRSUHGHOHNWULþQLP Protection against electric
XGDURP'HORSRGQDSHWRVWMR shock. Live working
53.020.99 Druga dvigalna oprema Other lifting equipment
SIST EN 61057:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61057:2018
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SIST EN 61057:2018
EUROPEAN STANDARD EN 61057
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 13.260; 29.260.99 Supersedes EN 61057:1993
English Version
Live working - Insulating aerial devices for mounting on a
chassis
(IEC 61057:2017)

Travaux sous tension - Dispositifs élévateurs isolants pour Arbeiten unter Spannung - Isolierende Hubarbeitsbühnen

montage sur un châssis für die Montage auf einem Fahrgestell
(IEC 61057:2017) (IEC 61057:2017)

This European Standard was approved by CENELEC on 2017-07-24. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61057:2017 E
---------------------- Page: 3 ----------------------
SIST EN 61057:2018
EN 61057:2017
European foreword

The text of document 78/1182/FDIS, future edition 2 of IEC 61057, prepared by IEC/TC 78 "Live

working" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN 61057:2017.
The following dates are fixed:
(dop) 2018-04-24
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-07-24
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61057:1993.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 61057:2017 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60270 NOTE Harmonized as EN 60270.
IEC 60743:2013 NOTE Harmonized as EN 60743:2013 (not modified).
IEC 60855-1 NOTE Harmonized as EN 60855-1.
IEC 61109 NOTE Harmonized as EN 61109.
IEC 61235 NOTE Harmonized as EN 61235.
IEC 61472:2013 NOTE Harmonized as EN 61472:2013 (not modified).
---------------------- Page: 4 ----------------------
SIST EN 61057:2018
EN 61057:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60060-1 - High-voltage test techniques - EN 60060-1 -
Part 1: General definitions and test
requirements
IEC 60060-2 - High-voltage test techniques - EN 60060-2 -
Part 2: Measuring systems
IEC 60212 2010 Standard conditions for use prior to and EN 60212 2011
during the testing of solid electrical
insulating materials
IEC 60417-DB - Graphical symbols for use on equipment - -
IEC 61318 - Live working - Conformity assessment EN 61318 -
applicable to tools, devices and equipment
IEC 62237 (mod) 2003 Live working - Insulating hoses EN 62237 2005
with fittings for use with hydraulic tools
and equipment
ISO 16368 2010 Mobile elevating work platforms - Design, - -
calculations, safety requirements and test
methods
ISO 13850 - Safety of machinery - Emergency stop EN ISO 13850 -
function - Principles for design
SAE J343 - Test and Test Procedures for SAE 100R - -
Series Hydraulic Hose and Hose
Assemblies
SAE J517 - Hydraulic hose - -
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SIST EN 61057:2018
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SIST EN 61057:2018
IEC 61057
Edition 2.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Insulating aerial devices for mounting on a chassis
Travaux sous tension – Dispositifs élévateurs isolants pour montage sur un
châssis
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.260; 29.260.99 ISBN 978-2-8322-4427-2

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 61057:2018
– 2 – IEC 61057:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 6

INTRODUCTION ..................................................................................................................... 8

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

4 Specific terms and nomenclature ................................................................................... 19

5 Requirements ................................................................................................................ 22

5.1 Controls ................................................................................................................ 22

5.1.1 Activation and operation ................................................................................ 22

5.1.2 Duplicate controls .......................................................................................... 23

5.1.3 Emergency stop ............................................................................................. 23

5.1.4 Control of outriggers ...................................................................................... 24

5.1.5 Monitoring of radio and optical fibre controls .................................................. 24

5.1.6 High electrical resistance upper control system(s) ......................................... 24

5.2 Failure of the source of power ............................................................................... 24

5.3 Restoration of power after failure .......................................................................... 24

5.4 Boom travel protection .......................................................................................... 24

5.5 Chassis inclination ................................................................................................ 25

5.6 Locking pins .......................................................................................................... 25

5.7 Electrical requirements ......................................................................................... 25

5.7.1 Insulating systems ......................................................................................... 25

5.7.2 Insulating booms (including lower boom insulating insert / chassis

insulating system) .......................................................................................... 25

5.7.3 Non-conductive/insulating hydraulic hoses and lines ..................................... 26

5.7.4 Insulating fixed handling tools ........................................................................ 26

5.7.5 Insulating optical fibre cables......................................................................... 26

5.7.6 Equipotential bonding .................................................................................... 26

5.7.7 Lower test electrode system .......................................................................... 27

5.7.8 Corona effect ................................................................................................. 31

5.7.9 Gradient control devices ................................................................................ 31

5.7.10 Chassis insulating system bypass .................................................................. 31

5.7.11 Chassis earthing system ................................................................................ 32

5.8 Particular mechanical requirements ...................................................................... 32

5.8.1 Structural design ........................................................................................... 32

5.8.2 Stability ......................................................................................................... 33

5.8.3 Wind speed ................................................................................................... 33

5.9 Speeds of the extending structure ......................................................................... 33

5.10 Load sensing ........................................................................................................ 33

5.11 Requirements for the hydraulic system ................................................................. 33

5.11.1 Hydraulic depressurization (vacuum protection) ............................................. 33

5.11.2 Hydraulic pressure rise .................................................................................. 33

5.11.3 System protection .......................................................................................... 33

5.11.4 Overriding safety devices .............................................................................. 34

5.11.5 Pressure limiting device ................................................................................. 34

5.11.6 Bursting strength – hoses and fittings ............................................................ 34

5.11.7 Fluid level indicators ...................................................................................... 34

5.11.8 Fluid cleanliness ............................................................................................ 34

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SIST EN 61057:2018
IEC 61057:2017 © IEC 2017 – 3 –

5.12 Requirements for the platforms ............................................................................. 34

5.12.1 Platform security ............................................................................................ 34

5.12.2 Platform levelling ........................................................................................... 34

5.12.3 Guardrail system ........................................................................................... 35

5.12.4 Baskets ......................................................................................................... 35

5.12.5 Personnel safety attachments (and attachment for fall protection) ................. 35

5.13 Marking ................................................................................................................. 35

5.14 Instructions for use ............................................................................................... 36

5.15 Dimensions and mass ........................................................................................... 36

6 Tests ............................................................................................................................. 36

6.1 General ................................................................................................................. 36

6.2 Visual and dimensional check ............................................................................... 37

6.3 Design check and functional testing ...................................................................... 37

6.4 Durability of markings ........................................................................................... 37

6.5 Dye penetration test of insulating foam-filled booms ............................................. 37

6.6 Electrical tests ...................................................................................................... 38

6.6.1 General ......................................................................................................... 38

6.6.2 Electrical tests for insulating booms, insulating fixed handling tools and

optical fibre cables......................................................................................... 38

6.6.3 Test of insulating baskets or liners ................................................................. 50

6.6.4 Dielectric test of the insulating fixed handling tools ........................................ 51

6.7 Dielectric tests of the insulating systems of the complete aerial devices ............... 52

6.7.1 General ......................................................................................................... 52

6.7.2 Aerial devices with lower test electrode system ............................................. 52

6.7.3 Aerial devices without lower test electrode system......................................... 55

6.8 Lower test electrode system .................................................................................. 61

6.9 Equipotential bonding ........................................................................................... 61

6.10 Mechanical tests ................................................................................................... 61

6.10.1 Mechanical tests on insulating boom with its fittings ...................................... 61

6.10.2 Platform creep ............................................................................................... 62

6.10.3 Hydraulic depressurization (vacuum protection) ............................................. 62

6.11 Design and functional tests ................................................................................... 63

7 Conformance testing of aerial devices after completion of the production phase ............ 63

8 Modifications ................................................................................................................. 63

Annex A (informative) Guidelines for selecting the characteristics of insulating aerial

devices as a function of the live working methods ................................................................. 64

A.1 General ................................................................................................................. 64

A.2 Bare hand live working .......................................................................................... 64

A.3 Live line tool, distance or hot stick working ........................................................... 64

A.4 Insulating (rubber) glove working .......................................................................... 65

A.5 Use under DC ....................................................................................................... 65

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 ......................... 65

Annex B (normative) Suitable for live working; double triangle IEC-60417-5216:2002-10 ..... 66

Annex C (normative) General type test procedure ................................................................ 67

Annex D (normative) Classification of defects and tests to be allocated ............................... 69

Annex E (informative) Care and maintenance ...................................................................... 71

E.1 General ................................................................................................................. 71

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SIST EN 61057:2018
– 4 – IEC 61057:2017 © IEC 2017

E.2 Care of insulating components .............................................................................. 71

E.2.1 Care whilst in transit ...................................................................................... 71

E.2.2 Care during work activities ............................................................................. 71

E.2.3 Storage.......................................................................................................... 72

E.3 Maintenance of insulating components .................................................................. 72

E.3.1 General ......................................................................................................... 72

E.3.2 Cleaning ........................................................................................................ 72

E.3.3 Siliconing or waxing ....................................................................................... 73

E.4 Inspection of insulating components ..................................................................... 73

E.4.1 General ......................................................................................................... 73

E.4.2 Pre-start inspection ....................................................................................... 73

E.4.3 Frequent and annual inspections of aerial devices ......................................... 74

E.5 Tests .................................................................................................................... 74

E.5.1 Periodic electrical tests .................................................................................. 74

E.5.2 Mechanical test – Acoustic emission testing .................................................. 80

E.6 Records ................................................................................................................ 81

E.7 Repairing/refurbishing ........................................................................................... 81

E.8 Overriding safety devices ...................................................................................... 82

E.9 Care, maintenance and periodic inspection when insulating aerial devices

are for other uses than live working ...................................................................... 82

Annex F (informative) Hydraulic depressurization (vacuum protection) (see 5.11.1 and

6.10.3) .................................................................................................................................. 83

F.1 General ................................................................................................................. 83

F.2 In-line check valves .............................................................................................. 83

F.2.1 General ......................................................................................................... 83

F.2.2 Testing the in-line check valves (typical test procedure – reference

Figure F.1) ..................................................................................................... 83

F.3 Atmospheric check valve assembly ....................................................................... 84

F.3.1 General ......................................................................................................... 84

F.3.2 Testing the atmospheric check valves (typical test procedure –

reference Figure F.2) ..................................................................................... 85

Bibliography .......................................................................................................................... 87

Figure 1 – Specific terms ...................................................................................................... 21

Figure 2 – Nomenclature ....................................................................................................... 22

Figure 3 – Typical equipotential bonding arrangement .......................................................... 27

Figure 4 – Leakage current monitoring .................................................................................. 30

Figure 5 – Example of temporary bypassing arrangement for chassis insulating system ....... 32

Figure 6 – AC dielectric test before and after exposure to humidity (method A) –

Typical test arrangement ...................................................................................................... 40

Figure 7 – AC dielectric tests before and after exposure to humidity (method A) –

Assembly diagram of the test piece to the guard electrodes .................................................. 42

Figure 8 – AC dielectric tests before and after exposure to humidity (method A) –

Constructional drawings for guard electrodes and parts ........................................................ 43

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 .......................................................................................................................... 44

Figure 10 – Details of electrode arrangement ........................................................................ 46

Figure 11 – Test arrangement ............................................................................................... 46

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SIST EN 61057:2018
IEC 61057:2017 © IEC 2017 – 5 –

Figure 12 – DC dielectric test before and after water soaking (method B) – Typical test

arrangement ......................................................................................................................... 48

Figure 13 – Preparation of optical fibre cable test piece for test after the infliction of a

gash ..................................................................................................................................... 50

Figure 14 – Test of insulating basket or liner ......................................................................... 51

Figure 15 – Test of the upper insulating system of devices with lower test electrode

system .................................................................................................................................. 53

Figure 16 – Test of the upper insulating system of devices without permanently

installed lower test electrode system ..................................................................................... 57

Figure 17 – Dielectric test for insulating insert/chassis insulating system .............................. 60

Figure 18 – Test of high electrical resistance component(s) .................................................. 60

Figure E.1 – DC only test of the upper insulating system of devices without

permanently installed lower test electrode system................................................................. 78

Figure E.2 – DC only test of insulating lower boom insert or chassis insulating system ......... 80

Figure F.1 – In-line check valve test for the insulating boom vacuum protection system ........ 84

Figure F.2 – Atmospheric check valve assembly test for the insulating boom vacuum

protection system.................................................................................................................. 85

Table 1 – Values for AC dielectric tests of the upper insulating system of devices with

lower test electrode system ................................................................................................... 54

Table 2 – Values for DC dielectric tests of the upper insulating system of devices with

lower test electrode system ................................................................................................... 55

Table 3 – Dielectric test for aerial devices without lower test electrode system ..................... 58

Table C.1 – List and chronological order (where required) of type tests ................................ 67

Table D.1 – Classification of defects and associated requirements and tests ........................ 69

Table E.1 – Electrical test values for periodic electrical testing of insulating aerial

devices with lower test electrode system for AC applications ................................................ 75

Table E.2 – Electrical test values for periodic testing of insulating aerial devices

without lower test electrode system for AC applications ........................................................ 75

Table E.3 – Electrical test values for periodic electrical testing of insulating

components of aerial devices for AC applications ................................................................. 76

Table E.4 – Electrical test values for periodic electrical testing of insulating aerial

devices with lower test electrode system for DC applications ................................................ 76

Table F.1 – Allowable vacuum formation within hydraulic lines (adjusted for altitude) ........... 86

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SIST EN 61057:2018
– 6 – IEC 61057:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
INSULATING AERIAL DEVICES
FOR MOUNTING ON A CHASSIS
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some
...

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