ISO 16653-2:2021

INTERNATIONAL ISO
STANDARD 16653-2
Second edition
2021-10
Mobile elevating work platforms —
Design, calculations, safety
requirements and test methods
relative to special features —
Part 2:
MEWPs with non-conductive
(insulating) components
Plates-formes élévatrices mobiles de personnel — Conception,
calculs, exigences de sécurité et méthodes d'essai concernant les
caractéristiques spéciales —
Partie 2: PEMP avec composants non conducteurs (isolants)
Reference number
© ISO 2021
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ii
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective/risk reduction measures .2
4.1 General . 2
4.2 Structural requirements . . 2
4.3 Hydraulic liquid . 3
4.4 Non-conductive hydraulic and pneumatic hoses . 3
4.5 Work platforms . 3
4.5.1 Work platform materials . . 3
4.5.2 Work platforms designed for use without an insulating liner . 3
4.5.3 Work platforms designed for use with an insulating liner . 3
4.5.4 Non-conductive (insulating) work platforms . 3
4.6 Electrical requirements. 3
4.6.1 Non-conductive (insulating) components . 3
4.6.2 Hydraulic and pneumatic hose. 3
4.6.3 Lower test electrode system for MEWPs with non-conductive (insulating)
components . 3
4.6.4 Chassis insulating system . 4
5 Verification of the safety requirements and/or protective/risk reduction measures .4
5.1 Examinations and tests . 4
5.2 Design check . 4
5.3 Manufacturing check . 5
5.4 Tests . 5
5.4.1 Dielectric tests. 5
5.4.2 Test criteria for MEWPs with a chassis insulating system . 6
5.5 Electrical tests . 6
5.5.1 General . 6
5.5.2 Test criteria for MEWPs with non-conductive (insulating) boom including
lower test electrode system . 6
5.5.3 Test criteria for MEWPs having non-conductive (insulating) components
without lower test electrode system . 7
5.5.4 Test criteria for aerial ladder and vertical tower MEWPs with non-
conductive (insulating) components (sections) . 10
5.5.5 Test criteria for chassis insulating systems . 11
5.5.6 Test criteria for insulating platform liners .12
5.5.7 Verification of tests in 5.5 .12
5.6 Initial inspection and test . .12
6 Information for use .12
6.1 General .12
6.2 Operator's manual . 13
6.3 Markings . 13
6.3.1 General .13
6.3.2 Responsible entity's plate . 13
6.3.3 Work platform .13
7 Safety principles, inspection, maintenance, and operation .14
7.1 General . 14
7.2 Maintenance . 14
7.2.1 Pre-start inspection . 14
7.2.2 Annual mechanical inspection/testing . 14
iii
7.2.3 Annual confirmation electrical test . 15
7.2.4 Electrical tests .15
7.2.5 Electrical test equipment . 18
7.2.6 Electrical certification . 18
7.3 Modifications or alterations . 18
Annex A (informative) List of significant hazards .19
Bibliography .20
iv
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 214, Elevating work platforms.
This second edition cancels and replaces the first edition (ISO 16653-2:2009), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— the limitation of applicability to 46 kV and below has been clarified in the Scope;
— the normative references have been updated;
— the hazard list has been moved to Annex A;
— in Clause 4, the bursting safety factors have been aligned with ISO 16368;
— in Clause 4, the requirements for vacuum flashover have been removed and the work platform
requirements have been clarified and re-organized;
— in Clause 5, general requirements for examination and test have been added;
— Table 1 and Table 2 have been updated.
A list of all parts in the ISO 16653 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
Introduction
The object of this document is to define rules for safegu
...