Petroleum, petrochemical and natural gas industries - Safety of machineries - Powered elevators (ISO 20321:2020)

This document specifies general safety requirements for the design, testing and production of powered elevators. The requirements are applicable for on- and off-shore applications of such elevators in the petroleum, petrochemical and natural gas industries.
This document does not cover any other type of elevator. It is not applicable to the following types of products: lifting nubbins, lifting plugs, lifting subs, internal gripping devices, equipment for lifting tubular from and onto a vessel. This list is not exclusive.

Erdöl-, petrochemische und Erdgasindustrie - Sicherheit von Maschinen - Angetriebene Elevatoren (ISO 20321:2020)

Diese Europäische Norm legt allgemeine Sicherheitsanforderungen an die Konstruktion, Prüfung und Produktion von angetriebenen Elevatoren fest. Die Anforderungen gelten für die On- und Offshore-Anwendung solcher Elevatoren in der Erdöl- und petrochemischen Industrie.
Dieses Dokument gilt nicht für andere Arten von Elevatoren. Es ist nicht anwendbar auf folgende Produktarten:
—   Fernsteuerungseinrichtungen;
—   Hebeösen;
—   Tragzapfen;
—   Hebekappen;
—   interne Greifvorrichtungen;
—   Geräte zum Heben des Rohres von einem und auf ein Schiff.
Diese Liste ist nicht ausschließlich.
ANMERKUNG   Anhang A enthält Angaben zum Zusammenhang zwischen den Abschnitten der Europäischen Richtlinie über Maschinen (Richtlinie 2006/42/EG) und diesem Dokument hinsichtlich potenzieller signifikanter Gefährdungen und der Sicherheitsanforderungen in Verbindung mit angetriebenen Elevatoren.

Industries du pétrole, de la pétrochimie et du gaz naturel - Sécurité des machines - Élévateurs motorisés (ISO 20321:2020)

Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina - Varnost strojev - Električna dvigala (ISO 20321:2020)

General Information

Status
Published
Public Enquiry End Date
27-Sep-2017
Publication Date
14-Apr-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Apr-2020
Due Date
11-Jun-2020
Completion Date
15-Apr-2020

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SLOVENSKI STANDARD
SIST EN ISO 20321:2020
01-junij-2020
Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina -
Varnost strojev - Električna dvigala (ISO 20321:2020)

Petroleum, petrochemical and natural gas industries - Safety of machineries - Powered

elevators (ISO 20321:2020)

Erdöl-, petrochemische und Erdgasindustrie - Sicherheit von Maschinen - Angetriebene

Elevatoren (ISO 20321:2020)

Industries du pétrole, de la pétrochimie et du gaz naturel - Sécurité des machines -

Élévateurs motorisés (ISO 20321:2020)
Ta slovenski standard je istoveten z: EN ISO 20321:2020
ICS:
13.110 Varnost strojev Safety of machinery
53.020.01 Dvigalne naprave na splošno Lifting appliances in general
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
SIST EN ISO 20321:2020 en,fr,de

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

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SIST EN ISO 20321:2020
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SIST EN ISO 20321:2020
EN ISO 20321
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 13.110; 75.180.10
English Version
Petroleum, petrochemical and natural gas industries -
Safety of machineries - Powered elevators (ISO
20321:2020)

Industries du pétrole, de la pétrochimie et du gaz Erdöl-, petrochemische und Erdgasindustrie -

naturel - Sécurité des machines - Élévateurs motorisés Sicherheit von Maschinen - Angetriebene Elevatoren

(ISO 20321:2020) (ISO 20321:2020)
This European Standard was approved by CEN on 19 March 2020.

CEN 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 CEN

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 CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20321:2020 E

worldwide for CEN national Members.
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SIST EN ISO 20321:2020
EN ISO 20321:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 20321:2020
EN ISO 20321:2020 (E)
European foreword

This document (EN ISO 20321:2020) has been prepared by Technical Committee ISO/TC 67 "Materials,

equipment and offshore structures for petroleum, petrochemical and natural gas industries" in

collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for

petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by September 2020, and conflicting national standards

shall be withdrawn at the latest by September 2020.

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

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

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 20321:2020 has been approved by CEN as EN ISO 20321:2020 without any modification.

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SIST EN ISO 20321:2020
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SIST EN ISO 20321:2020
INTERNATIONAL ISO
STANDARD 20321
First edition
2020-03
Petroleum, petrochemical and natural
gas industries — Safety of machineries
— Powered elevators
Industries du pétrole, de la pétrochimie et du gaz naturel — Sécurité
des machines — Élévateurs motorisés
Reference number
ISO 20321:2020(E)
ISO 2020
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Abbreviated terms .............................................................................................................................................................................................. 5

5 Safety requirements and/or protective/risk reduction measures .................................................................. 5

5.1 General requirements for powered elevators .............................................................................................................. 5

5.2 Mechanical strength ........................................................................................................................................................................... 5

5.3 Safety design of powered elevators ...................................................................................................................................... 5

5.3.1 General...................................................................................................................................................................................... 5

5.3.2 Ergonomic design ........................................................................................................................................................... 5

5.3.3 Fastening methods and DROPS prevention of parts ......................................................................... 5

5.3.4 Suspension points ........................................................................................................................................................... 6

5.3.5 Moving parts, pinch points and guards ........................................................................................................ 6

5.4 Other protective measures ........................................................................................................................................................... 7

5.4.1 Risks due to surfaces, edges or angles .......................................................................................................... 7

5.4.2 Size and type verification (errors of fitting) ............................................................................................ 7

5.4.3 Static electricity ................................................................................................................................................................ 7

5.4.4 Loss of stability ................................................................................................................................................................. 7

5.4.5 Explosion prevention ................................................................................................................................................... 7

5.4.6 Controls .................................................................................................................................................................................... 7

5.4.7 Elevator coating ................................................................................................................................................................ 7

5.4.8 Noise ........................................................................................................................................................................................... 8

5.5 Specific risks for powered elevators .................................................................................................................................... 8

5.5.1 General...................................................................................................................................................................................... 8

5.5.2 External power source ................................................................................................................................................ 8

5.5.3 Feedback signals .............................................................................................................................................................. 8

5.5.4 Danger zone ......................................................................................................................................................................... 8

5.6 Stops for an assembly of machinery ..................................................................................................................................... 9

5.6.1 General...................................................................................................................................................................................... 9

5.6.2 Start of the movement ................................................................................................................................................. 9

5.6.3 Normal stop .......................................................................................................................................................................... 9

5.6.4 Operational stop ............................................................................................................................................................... 9

5.6.5 Emergency shutdown .................................................................................................................................................. 9

5.7 Failure of power supply ................................................................................................................................................................10

5.8 Verification of safety requirements and/or protective/risk reduction measures .....................10

5.8.1 General...................................................................................................................................................................................10

5.8.2 Service life ..........................................................................................................................................................................10

5.8.3 Fatigue life ..........................................................................................................................................................................10

5.8.4 Maintenance .....................................................................................................................................................................10

6 Functions for preparing the elevator for a safe lift — Wrapping, securing, locking

and verification ...................................................................................................................................................................................................10

6.1 General ........................................................................................................................................................................................................10

6.2 Black box approach ..........................................................................................................................................................................11

6.3 Wrapping...................................................................................................................................................................................................11

6.4 Securing......................................................................................................................................................................................................12

6.5 Locking ........................................................................................................................................................................................................13

6.6 Verification of readiness for safe lift ..................................................................................................................................13

7 Closed-ring powered elevator ..............................................................................................................................................................14

7.1 Wrapping...................................................................................................................................................................................................14

7.2 Securing and locking .......................................................................................................................................................................14

© ISO 2020 – All rights reserved iii
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SIST EN ISO 20321:2020
ISO 20321:2020(E)

7.3 Verification ..............................................................................................................................................................................................14

8 Instructions for use ........................................................................................................................................................................................14

8.1 General ........................................................................................................................................................................................................14

8.2 Instruction handbook ....................................................................................................................................................................14

9 Marking of powered elevators.............................................................................................................................................................17

Annex A (informative) Relation between the clauses of European Directive on machinery

(Directive 2006/42/EC) and this document .........................................................................................................................19

Annex B (normative) Verification tests for powered elevators .............................................................................................23

Bibliography .............................................................................................................................................................................................................................25

iv © ISO 2020 – All rights reserved
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
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

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

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

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore

structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling

and production equipment, in collaboration with the European Committee for Standardization

(CEN) Technical Committee CEN/TC 12, Materials, equipment and offshore structures for petroleum,

petrochemical and natural gas industries, in accordance with the Agreement on technical cooperation

between ISO and CEN (Vienna Agreement).

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.
© ISO 2020 – All rights reserved v
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
Introduction
This document is a type-C standard as stated in ISO 12100.

This document is of relevance, in particular, for the following stakeholder groups representing the

market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);

— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.)

Others can be affected by the level of machinery safety achieved with the means of the document by the

above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);

— machine users/employees (e.g. trade unions, organizations for people with special needs);

— service providers, e. g. for maintenance (small, medium and large enterprises);

— consumers (in case of machinery intended for use by consumers).

The above-mentioned stakeholder groups have been given the possibility to participate at the drafting

process of this document.

The machinery concerned and the extent to which hazards, hazardous situations or hazardous events

are covered are indicated in the Scope of this document.

When requirements of this type-C standard are different from those which are stated in type-A or

type-B standards, the requirements of this type-C standard take precedence over the requirements of

the other standards for machines that have been designed and built according to the requirements of

this type-C standard.
vi © ISO 2020 – All rights reserved
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SIST EN ISO 20321:2020
INTERNATIONAL STANDARD ISO 20321:2020(E)
Petroleum, petrochemical and natural gas industries —
Safety of machineries — Powered elevators
1 Scope

This document specifies general safety requirements for the design, testing and production of powered

elevators. The requirements are applicable for onshore and offshore applications of such elevators in

the petroleum and petrochemical industries.

This document does not cover any other type of elevator. It is not applicable to the following types of

products:
— remote control devices;
— lifting nubbins;
— lifting plugs;
— lifting subs;
— internal gripping devices;
— equipment for lifting tubular from and onto a vessel;
— elevator links or bails.
This list is not exhaustive.

This document is not applicable to powered elevators manufactured before the date of this publication.

NOTE Annex A provides the relation between the clauses of the European Directive on machinery (Directive

2006/42/EC) and this document, for potential significant hazards and the safety requirements dealing with

them for powered elevators.
2 Normative references

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.

ISO 3864 (all parts), Graphical symbols — Safety colours and safety signs

ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction

ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles

for design

ISO 13534, Petroleum and natural gas industries — Drilling and production equipment — Inspection,

maintenance, repair and remanufacture of hoisting equipment

ISO 13535:2000, Petroleum and natural gas industries — Drilling and production equipment — Hoisting

equipment
ISO 13850, Safety of machinery — Emergency stop function — Principles for design

ISO 13854, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body

© ISO 2020 – All rights reserved 1
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SIST EN ISO 20321:2020
ISO 20321:2020(E)

ISO 14120, Safety of machinery — Guards — General requirements for the design and construction of fixed

and movable guards

ISO 80079-36, Explosive atmospheres — Part 36: Non-electrical equipment for explosive atmospheres —

Basic method and requirements

ISO 80079-37, Explosive atmospheres — Part 37: Non-electrical equipment for explosive atmospheres — Non-

electrical type of protection constructional safety “c”, control of ignition sources “b”, liquid immersion “k”

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
control system

system that responds to input signals from parts of the elevator (3.5), operators, external control

equipment or any combination of these, and generates corresponding output signals to the elevator

actuators, causing the elevator to perform in the intended manner
3.2
danger zone

space within, under and/or around machinery in which a person can be exposed to a hazard

[SOURCE: ISO 12100:2010, 3.11]
3.3
design verification

process of examining the result of a given design or development activity to determine conformity with

specified requirements
[SOURCE: ISO/TS 29001:2010, 3.1.8]
3.4
DROPS
dropped objects
industry-wide initiative focused on preventing dropped objects

Note 1 to entry: DROPS ultimate goal is delivering a second nature dropped objects prevention strategy across

the industry.
3.5
elevator

lifting accessory to be used for lifting and handling of tubular in the on- and offshore drilling industry

on or in the vicinity of the drill floor
3.6
fatigue life

number of stress cycles of a specific character that an elevator (3.5) sustains before failure of a specified

nature occurs
2 © ISO 2020 – All rights reserved
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
3.7
feedback signal

signal generated by the elevator (3.5) that can be used for monitoring or functional use

Note 1 to entry: Examples of feedback signals include elevator set for safe lifting, weight in elevator, and

elevator open.
3.8
insert

gripping/holding device, with or without teeth that embed into the side of the tubular, which can create

friction in order to suspend the tubular
3.9
interface

connection of the elevator (3.5) with the associated external infrastructure and vice versa

Note 1 to entry: The interface can be any transfer of signals or power by means of for example hydraulics,

pneumatics, electrics or wireless.
3.10
internal control device
device located on the elevator (3.5) itself

Note 1 to entry: Internal control devices are parts of the control system (3.1), which detect input signals and/or

generate output signals.
3.11
locking
ensuring that the securing is maintained
3.12
movement of the powered elevator

movement of parts of the elevator (3.5), excluding movements of the elevator (e.g. generated by the

top drive)
3.13
pick up

lifting tubular from a non-vertical (typical near horizontal) position outside the drill floor area into a

vertical position in the drill floor area
3.14
powered elevator

lifting accessories to be used for lifting and handling of tubular in the onshore and offshore drilling

industry on or in the vicinity of the drill floor, of which the movement of the mechanics is done partly or

completely mechanically using a power source (3.15)
3.15
power source

engine or motor which provides mechanical energy for linear or rotational movement

[SOURCE: ISO 11449:1994, 3.2]
3.16
primary feedback signal

signal generated by the elevator status that indicates the elevator (3.5) is set for safe lifting

3.17
product verification

evaluation of the implementation of the product against the requirements to determine that they have

been met
[SOURCE: ISO 16404:2013, 3.3]
© ISO 2020 – All rights reserved 3
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SIST EN ISO 20321:2020
ISO 20321:2020(E)
3.18
remote control device
device located at a distance from the elevator (3.5)

Note 1 to entry: Remote control devices are parts, which detect input signals and/or generate output signals.

3.19
safe lift

lifting of tubular in a safe way, without creating an unacceptable risk for equipment and personnel

Note 1 to entry: Safe lifts are ensured by maintaining sufficient contact between the elevator (3.5) and the

tubular to be lifted, preventing inadvertent loss of contact and verifying that these conditions are fulfilled.

3.20
safe working load

maximum load that can be handled by the manual elevator (3.5) after subtracting the foreseeable

dynamic load for the specific application from its rated load
3.21
secondary feedback signal

other signal than primary feedback signal (3.16) generated by the elevator status that indicates any

other state than readiness for safe lifting (e.g. weight indication)
3.22
securing
fastening of the wrap-around of an elevator (3.5) around a tubular
EXAMPLE 1 To latch (completing a circle).
EXAMPLE 2 To set slips (3.26).
3.23
service life
expected lifetime, or acceptable period of use in service

Note 1 to entry: Service life is the length of time that the elevator (3.5) can be expected to be “serviceable” or to

be sup
...

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