SIST EN 81-21:2022
(Main)Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods - Part 21: New passenger and goods passenger lifts in existing building
Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods - Part 21: New passenger and goods passenger lifts in existing building
This document specifies the safety rules related to passenger and goods/passenger lifts installed in existing buildings where limitations enforced by certain building constraints mean that some requirements of EN 81 20:2020 cannot be met.
This document is intended to be read and applied in conjunction with EN 81-20:2020. It addresses the following constraints and gives requirements for alternative solutions:
- existing perforate walls of the lift well;
- reduction in available well are leading to reduced distance between car, counterweight or balancing weight;
- counterweight or balancing weight in a separate existing well;
- reduced building dimensions and clearances leading to:
- reductions in available space for headroom and pit;
- reduced car roof balustrade dimensions;
- reduced height of sill apron;
- reduced height of machine and/or pulley room;
- reduced available area for access door/trap door;
- reduction in available height of landing doors.
This document is not applicable to lifts installed before the date of its publication.
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den Personen- und Gütertransport - Teil 21: Neue Personen- und Lastenaufzüge in bestehenden Gebäuden
Diese Europäische Norm legt Sicherheitsregeln für neue Personen- und Lastenaufzüge fest, die dauerhaft in bestehende Gebäude eingebaut werden, bei denen in manchen Fällen aufgrund von baulichen Einschrän-kungen einige Anforderungen von EN 81 20:2020 nicht erfüllt werden können.
Dieses Dokument soll verstanden und angewendet werden in Verbindung mit EN 81-20:2020. Es geht auf folgende Zwänge ein und gibt Anforderungen für alternative Lösungen an:
- Bestehende durchbrochene Schachtwände;
- die Verringerung des verfügbaren Schachts führt zu einem geringeren Abstand zwischen Fahrkorb, Gegengewicht oder Ausgleichsgewicht;
- Gegengewicht oder Ausgleichsgewicht in einem separaten vorhandenen Schacht;
- reduzierte Gebäudemaße und Abstände führen zu:
- Reduzierung des vorhandenen Schutzraums für Schachtkopf und Schachtgrube;
- Reduzierung der Fahrkorbdachumwehrung;
- Reduzierung der Höhe der Fahrkorbschürze;
- Reduzierung der Höhe des Triebwerksraums und/oder Rollenräume;
- Reduzierung der Höhe der Schachttüren.
Dieses Dokument ist nicht anwendbar auf Aufzüge, die vor der Veröffentlichung dieser Norm installiert wurden.
Règles de sécurité pour la construction et l'installation des élévateurs - Elévateur pour le transport de personnes et d'objets - Partie 21 : Ascenseurs et ascenseurs de charge neufs dans les bâtiments existants
Le présent document spécifie les règles de sécurité relatives aux ascenseurs et ascenseurs de charge, installés dans des bâtiments existants où certaines prescriptions de l'EN 81-20:2020 ne peuvent être satisfaites en raison de limites imposées par les contraintes de construction.
Le présent document est destiné à être lu et appliqué de pair avec l'EN 81-20:2020. Il aborde les contraintes suivantes et donne des exigences pour des solutions alternatives :
- parois de gaine non pleine existantes ;
- réduction de la gaine disponible, entraînant une réduction de la distance entre la cabine, le contrepoids ou la masse d'équilibrage ;
- contrepoids ou masse d'équilibrage dans une gaine séparée existante ;
- réduction des dimensions de construction et des réserves conduisant à :
- réduction de l'espace disponible pour la partie supérieure de la gaine et cuvette ;
- réduction des dimensions de la balustrade de toit de cabine ;
- réduction de la hauteur du garde-pieds du seuil ;
- réduction de la hauteur du local de machines/de poulies ;
- réduction de l'espace disponible pour la porte/trappe d'accès ;
- réduction de la hauteur disponible des portes palières.
Le présent document n'est pas applicable aux ascenseurs qui ont été fabriqués avant sa date de publication.
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz oseb in blaga - 21. del: Nova osebna in osebno-tovorna dvigala v obstoječih stavbah
Ta dokument določa varnostna pravila za osebna in tovorno-osebna dvigala, vgrajena v obstoječih stavbah, kadar zaradi omejitev, ki jih narekujejo določene gradbene ovire, nekaterih zahtev standarda EN 81-20:2020 ni mogoče izpolniti.
Ta dokument je treba uporabljati v povezavi s standardom EN 81-20:2020. Obravnava naslednje omejitve in določa zahteve za alternativne rešitve:
– obstoječe perforirane stene jaška dvigala;
– zmanjšanje razpoložljivega jaška povzroči zmanjšanje razdalje med kabino, protiutežjo ali izravnalno utežjo;
– protiutež ali izravnalna utež v ločenem obstoječem jašku;
– manjše dimenzije zgradbe in odmiki, ki vodijo do:
– zmanjšanja razpoložljivega prostora nad glavo in v jašku;
– zmanjšanja dimenzij podestne ograje za kabino;
– zmanjšanja višine plošče praga;
– zmanjšanja višine strojnice in/ali prostora za jermenice;
– zmanjšanja območja, ki je na voljo za dostopna vrata/loputo;
– zmanjšanja razpoložljive višine za etažna vrata.
Ta dokument se ne uporablja za dvigala, vgrajena pred datumom njegove objave.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 81-21:2022
01-september-2022
Nadomešča:
SIST EN 81-21:2018
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz
oseb in blaga - 21. del: Nova osebna in osebno-tovorna dvigala v obstoječih
stavbah
Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 21: New passenger and goods passenger lifts in existing building
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den
Personen- und Gütertransport - Teil 21: Neue Personen- und Lastenaufzüge in
bestehenden Gebäuden
Règles de sécurité pour la construction et l'installation des élévateurs - Elévateur pour le
transport de personnes et d'objets - Partie 21 : Ascenseurs et ascenseurs de charge
neufs dans les bâtiments existants
Ta slovenski standard je istoveten z: EN 81-21:2022
ICS:
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
SIST EN 81-21:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 81-21:2022
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SIST EN 81-21:2022
EN 81-21
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 91.140.90 Supersedes EN 81-21:2018
English Version
Safety rules for the construction and installation of lifts -
Lifts for the transport of persons and goods - Part 21: New
passenger and goods passenger lifts in existing building
Règles de sécurité pour la construction et l'installation Sicherheitsregeln für die Konstruktion und den Einbau
des élévateurs - Élévateur pour le transport de von Aufzügen - Aufzüge für den Personen- und
personnes et d'objets - Partie 21 : Ascenseurs et Gütertransport - Teil 21: Neue Personen- und
ascenseurs de charge neufs dans les bâtiments Lastenaufzüge in bestehenden Gebäuden
existants
This European Standard was approved by CEN on 20 April 2022.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 81-21:2022 E
worldwide for CEN national Members.
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SIST EN 81-21:2022
EN 81-21:2022 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 List of significant hazards . 8
5 Safety requirements and/or protective measures . 9
5.1 General . 9
5.2 Perforate wall of the lift well . 9
5.3 Distance between car, counterweight or balancing weight . 9
5.4 Counterweight or balancing weight in a separate well . 9
5.4.1 General . 9
5.4.2 Counterweight or balancing weight well provisions . 9
5.4.3 Guiding of the counterweight or balancing weight . 10
5.5 Reduced clearances in the headroom . 10
5.5.1 General . 10
5.5.2 Devices providing refuge spaces in the headroom . 11
5.5.3 Safety system . 13
5.5.4 Visible and/or audible information . 14
5.5.5 Protection for group of lifts . 15
5.6 Car roof balustrade . 15
5.7 Reduced clearances in the pit . 16
5.7.1 General . 16
5.7.2 Devices providing refuge spaces in the pit . 16
5.7.3 Safety system . 18
5.7.4 Visible and/or audible information . 19
5.7.5 Partition in the pit . 19
5.7.6 Safe pit access . 20
5.8 Apron . 20
5.8.1 General . 20
5.8.2 Specific requirements . 20
5.9 Height of machine room . 21
5.10 Height of machine room doors . 21
5.11 Dimensions of trap doors for machine room and pulley room . 21
5.12 Height of landing doors . 22
5.13 Electrical safety devices . 22
6 Verification of safety requirements and/or protective measures . 22
6.1 Verification table . 22
6.2 Tests before putting the lift into service . 23
7 Information for use . 24
7.1 Instructions . 24
7.2 Notices and warnings . 24
7.2.1 Dimensions . 24
7.2.2 Reduced top clearances . 25
7.2.3 Extendable balustrade . 25
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SIST EN 81-21:2022
EN 81-21:2022 (E)
7.2.4 Reduced bottom clearances . 25
7.2.5 Extendable car apron . 25
Annex A (normative) List of the electric safety devices . 26
Annex B (normative) Examination of pre-triggered stopping system . 27
B.1 General provisions . 27
B.2 Statement and test samples . 27
B.3 Laboratory tests . 28
B.4 Calculation. 29
B.5 Test report . 31
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/33/EU aimed to be covered . 32
Bibliography . 34
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SIST EN 81-21:2022
EN 81-21:2022 (E)
European foreword
This document (EN 81-21:2022) has been prepared by Technical Committee CEN/TC 10 “Lifts, escalators
and moving walks”, the secretariat of which is held by AFNOR.
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 November 2022, and conflicting national standards shall
be withdrawn at the latest by May 2024.
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.
This document supersedes EN 81-21:2018.
In comparison with the previous edition, the following significant changes have been made:
— normative references have been updated;
— sub-clause 6.3 has been deleted;
— Annex B has been deleted;
— Annex ZA has been modified.
No technical changes have been made in Clause 5 during this revision.
This document is intended to be used in conjunction with EN 81-20:2020, which gives the basic
requirements for passenger and goods passenger lifts.
This document is part of the EN 81 series of standards. The structure of the EN 81 series is described in
CEN/TR 81-10:2008.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
4
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SIST EN 81-21:2022
EN 81-21:2022 (E)
Introduction
This document is a type-C standard as stated in EN 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 in 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. The main concern dealt with in this document is the reduction of top and pit clearances that
may be required due to site conditions. The adopted principle of safety is based on two levels of
achievement: first by means of an electrical stopping of the lift car, then by means of a mechanical
stopping of the lift car.
In order to have a uniform understanding of the requirements of this document, an existing building
within the terms of this document is understood to be one which was already in use before the lift was
installed. A building whose internal structure is completely renewed is considered as a new building
within the terms of this document.
5
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SIST EN 81-21:2022
EN 81-21:2022 (E)
1 Scope
This document specifies the safety rules related to passenger and goods/passenger lifts installed in
existing buildings where limitations enforced by certain building constraints mean that some
requirements of EN 81-20:2020 cannot be met.
It addresses the following constraints and gives requirements for alternative solutions:
— existing perforate walls of the lift well;
— reduction in available well are leading to reduced distance between car, counterweight or balancing
weight;
— counterweight or balancing weight in a separate existing well;
— reduced building dimensions and clearances leading to:
— reductions in available space for headroom and pit;
— reduced car roof balustrade dimensions;
— reduced height of sill apron;
— reduced height of machine and/or pulley room;
— reduced available area for access door/trap door;
— reduction in available height of landing doors.
This document is not applicable to lifts installed before the date of its publication.
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.
EN 81-20:2020, Safety rules for the construction and installation of lifts — Lifts for the transport of persons
and goods — Part 20: Passenger and goods passenger lifts
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2019)
ISO 3864-1:2011, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety
signs and safety markings
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SIST EN 81-21:2022
EN 81-21:2022 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 81-20:2020
and the following 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 https://www.electropedia.org/
3.1
movable stop
mechanical device that under normal operation allows the free movement of the lift between normal
terminal stops
Note 1 to entry: Where a person enters on the car roof or in the pit, the device limits the travel of the car to ensure
sufficient refuge space in the headroom or in the pit.
3.2
triggering device
device for operating a stopping gear by a mechanical linkage when the lift car passes a predetermined
position in the well
Note 1 to entry: This device is activated when an access to the lift well is opened by means of a key.
3.3
stopping gear
mechanical device for stopping, and maintaining stationary the lift car in the case of movement of the lift
car above and/or below a predetermined position in the well to protect person(s) on the car roof and/or
in the pit
3.4
pre-triggered stopping system
system including the triggering device, the stopping gear and a mechanical linkage in between
Note 1 to entry: Under normal operation of the lift, the system allows the free movement of the lift between
normal terminal stops. Where a person enters on the car roof or in the pit the system ensures refuge spaces in the
headroom or in the pit.
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SIST EN 81-21:2022
EN 81-21:2022 (E)
4 List of significant hazards
This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt
with in this document, identified by risk assessment as significant for this type of lift and which require
action to eliminate or reduce the risk (see Table 1).
Table 1 — List of significant hazards
Hazards Relevant clauses in this
No
as listed in Annex B of EN ISO 12100:2010 document
1 Mechanical hazards due to:
- Machine parts or work pieces, e.g.:
- Accumulation of energy inside the machinery, e.g.:
Crushing hazard 5.5, 5.7
Shearing hazard 5.2 a), 5.4.2
Drawing-in or trapping hazard 5.5.3, 5.7.3
Impact hazard 5.3, 5.4.3, 5.9, 5.10, 5.11, 5.12
Slip, trip and fall of persons (related to machinery) 5.2 b), 5.4.2, 5.8
- Uncontrolled amplitude of movements 5.4.1, 5.4.3
- From insufficient mechanical strength of parts 5.5.2.3.2 d), 5.6.1.2 a),
5.7.2.3.2 d), 5.8.1
- Falling of person from person carrier 5.6, 5.8.1
8 Hazards generated by neglecting ergonomic principles in
machinery design as, e.g. hazards from:
Access 5.4.2 d), 5.9, 5.10, 5.11, 5.12
Inadequate local lighting 5.4.2 h), 5.4.2 i)
Unhealthy postures 5.5.1
Human error, human behaviour 5.5.4, 5.7.4, 7.2
From abnormal conditions of assembly / testing / use / 5.4, 5.5, 5.6, 5.7, 5.8
maintenance
9 Hazards associated with the environment in which the
machine is used
Failure of the power supply 5.5.2.5.2, 5.5.3.1, 5.5.3.2,
5.7.2.5.2, 5.7.3.1, 5.7.3.2
Failure of the control circuit 5.5, 5.7
Unexpected start-up, unexpected overrun / overspeed (or
any similar malfunction) from
- Restoration of energy supply after an interruption 5.5.4, 5.7.4
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SIST EN 81-21:2022
EN 81-21:2022 (E)
5 Safety requirements and/or protective measures
5.1 General
Lifts within the scope of this standard shall comply with the relevant safety requirements and/or
protective measures of the following clauses where one or several requirements in EN 81-20:2020
cannot be fulfilled. In addition, lifts shall be designed according to the principles of EN ISO 12100:2010
for relevant but not significant hazards, which are not dealt with by this document.
5.2 Perforate wall of the lift well
Where due to the lift well of the existing lift being perforate EN 81-20:2020, 5.2.5.2 shall be replaced with
the following:
Any existing well enclosure shall be perforate provided that:
a) EN ISO 13857:2019, 4.2.4.2 is fulfilled; and
b) where the distance between openings of the enclosure and movable parts of the landing door locking
device is less than 0,3 m, manipulation of the locking device shall be prevented by an imperforate
screen.
5.3 Distance between car, counterweight or balancing weight
Where due to existing building constraints the distance between car and counterweight/balancing
weight according to EN 81-20:2020, 5.2.5.5.1 h) cannot be achieved the following shall apply.
The car and its associated components shall be at a distance of at least 25 mm from the counterweight or
balancing weight (if there is one) and its associated components.
To avoid any impact between the car (and its associated components) and the counterweight or balancing
weight (and its associated components), in case of failure of normal guidance, emergency guidance on
the car and counterweight shall be provided to maintain the car and the counterweight in their horizontal
position.
The emergency guiding shall withstand the same horizontal forces as described in EN 81-20:2020, 5.7.
5.4 Counterweight or balancing weight in a separate well
5.4.1 General
Where the counterweight or balancing weight has previously been accommodated in a separate existing
well, and the configuration on site does not permit the installation of a lift having an available car area
sufficient to fulfil the transport needs if the counterweight or balancing weight is repositioned to be in
the same well as the car, the requirements of EN 81-20:2020, 5.2.5.1.2 are added to as follows:
NOTE The standard covers only the installation of one counterweight (or balancing weight) in its own well.
5.4.2 Counterweight or balancing weight well provisions
In case of a separate well for the counterweight/balancing weight, the following requirements apply:
a) all requirements related to the totally enclosed well (EN 81-20:2020, 5.2.1.8 and 5.2.5.2) shall be
fulfilled for the well of the counterweight/balancing weight;
b) inspection doors shall be provided at both ends of the separate well and where necessary between
them to allow safe maintenance and examinations of the well equipment; they shall comply with
EN 81-20:2020, 5.2.3;
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SIST EN 81-21:2022
EN 81-21:2022 (E)
c) the distance between inspection doors and equipment requiring maintenance or inspection shall not
exceed 0,7 m;
d) where a safety gear is installed at the counterweight/balancing weight, inspection doors shall
provide access to be able to inspect and maintain the full travel of the counterweight/balancing
weight;
e) stopping device(s) accessible on opening the inspection doors at both ends of the separate well shall
be provided, in conformity with the requirements of EN 81-20:2020, 5.12.1.11;
f) electric socket outlets accessible on opening the inspection doors at both ends of the well shall be
provided as defined in EN 81-20:2020, 5.10.7.2;
g) the separate well shall be exclusively used for the lift in compliance with EN 81-20:2020, 5.2.1.2;
h) the separate well shall be provided with permanently installed electric lighting, giving an intensity
of at least 50 lux on the equipment requiring maintenance/inspection;
i) means to switch the separate well lighting shall be provided on opening the inspection door at the
lower end of the well.
5.4.3 Guiding of the counterweight or balancing weight
Where a counterweight or balancing weight is installed into its own well in accordance with 5.4.2, the
requirements of EN 81-20:2020, 5.7.1 are added to as follows:
When travelling in a separate well, the counterweight or the balancing weight shall be guided by guide
rails, by ropes or by the shape of the counterweight or the balancing weight and its well enclosure.
If the counterweight or balancing weight is resting on its buffers it shall be kept in an upright position by
the use of a small distance to the well enclosure or an emergency guiding.
Provisions shall be made so as to avoid the counterweight or the balancing weight to rotate, e.g. by using
equal number of left and right twisted suspension ropes.
Where its shape guides the counterweight or balancing weight, the enclosure of the well shall be
continuous and flush without any protrusion from which the counterweight or the balancing weight can
be blocked. The well enclosure shall be covered by durable material.
In case of ropes as guiding elements, a minimum number of 4 ropes shall be used. Springs or weights shall
tighten the ropes. The horizontal free distance between the counterweight or the balancing weight and
the well enclosure shall be at least 50 mm if the enclosure of the well is continuous and flush otherwise
it shall be increased by 2 mm for each meter of distance between the fixations of the ropes.
5.5 Reduced clearances in the headroom
5.5.1 General
Where due to existing building constraints the dimensional requirements of EN 81-20:2020, 5.2.5.7 for
headroom cannot be met, it shall be replaced by the following:
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SIST EN 81-21:2022
EN 81-21:2022 (E)
5.5.2 Devices providing refuge spaces in the headroom
5.5.2.1 General
The devices shall be:
a) either movable stops; or
b) a pre-triggered stopping system.
5.5.2.2 Movable stops
5.5.2.2.1 General
Automatically operated movable stops shall be designed to prevent damage due to any collision when
they are moved between the fully retracted and extended position.
5.5.2.2.2 Arrangement
5.5.2.2.2.1 In the case of traction drive lifts, the movable stops shall be installed in such a way as to
act on a downwards travelling counterweight to mechanically stop the car.
5.5.2.2.2.2 In the case of positive drive lifts, the movable stops shall be installed in such a way as to
act on an upwards travelling car to mechanically stop the car.
5.5.2.2.2.3 In the case of hydraulic lifts, the movable stops shall consist of one or more devices
external to the jack situated outside of the car projection, the resultant force of which is exerted on the
centre line of the jack.
5.5.2.2.3 Buffering of movable stops
5.5.2.2.3.1 In the case of traction and positive drive lifts the movable stops shall incorporate buffers
or act on buffers complying with EN 81-20:2020, 5.8.1 and 5.8.2.
5.5.2.2.3.2 In the case of hydraulic lifts the design of the movable stops shall be such that the average
retardation of the car does not exceed 1 g and that in case of an indirect acting lift the retardation does
n
not result
...
SLOVENSKI STANDARD
oSIST prEN 81-21:2020
01-december-2020
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz
oseb in blaga - 21. del: Nova osebna in tovorno-osebna dvigala v obstoječih
stavbah
Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 21: New passenger and goods passenger lifts in existing building
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den
Personen- und Gütertransport - Teil 21: Neue Personen- und Lastenaufzüge in
bestehenden Gebäuden
Règles de sécurité pour la construction et l'installation des élévateurs - Elévateur pour le
transport de personnes et d'objets - Partie 21 : Ascenseurs et ascenseurs de charge
neufs dans les bâtiments existants
Ta slovenski standard je istoveten z: prEN 81-21
ICS:
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
oSIST prEN 81-21:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 81-21:2020
DRAFT
EUROPEAN STANDARD
prEN 81-21
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2020
ICS 91.140.90 Will supersede EN 81-21:2018
English Version
Safety rules for the construction and installation of lifts -
Lifts for the transport of persons and goods - Part 21: New
passenger and goods passenger lifts in existing building
Règles de sécurité pour la construction et l'installation Sicherheitsregeln für die Konstruktion und den Einbau
des élévateurs - Elévateur pour le transport de von Aufzügen - Aufzüge für den Personen- und
personnes et d'objets - Partie 21 : Ascenseurs et Gütertransport - Teil 21: Neue Personen- und
ascenseurs de charge neufs dans les bâtiments Lastenaufzüge in bestehenden Gebäuden
existants
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 10.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
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. prEN 81-21:2020 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 List of significant hazards . 8
5 Safety requirements and/or protective measures . 9
5.1 General . 9
5.2 Perforate wall of the lift well . 9
5.3 Distance between car, counterweight or balancing weight . 9
5.4 Counterweight or balancing weight in a separate well . 9
5.4.1 General . 9
5.4.2 Counterweight or balancing weight well provisions . 9
5.4.3 Guiding of the counterweight or balancing weight . 10
5.5 Reduced clearances in the headroom . 10
5.5.1 General . 10
5.5.2 Devices providing refuge spaces in the headroom . 10
5.5.3 Safety system . 13
5.5.4 Visible and/or audible information . 14
5.5.5 Protection for group of lifts . 14
5.6 Car roof balustrade . 15
5.7 Reduced clearances in the pit . 15
5.7.1 General . 15
5.7.2 Devices providing refuge spaces in the pit . 15
5.7.3 Safety system . 18
5.7.4 Visible and/or audible information . 19
5.7.5 Partition in the pit . 19
5.7.6 Safe pit access . 19
5.8 Apron . 20
5.8.1 General . 20
5.8.2 Specific requirements . 20
5.9 Height of machine room . 21
5.10 Height of machine room doors . 21
5.11 Dimensions of trap doors for machine room and pulley room . 21
5.12 Height of landing doors . 21
5.13 Electrical safety devices . 22
6 Verification of safety requirements and/or protective measures . 22
6.1 Verification table . 22
6.2 Tests before putting the lift into service . 24
7 Information for use . 24
7.1 Instructions . 24
7.2 Notices and warnings . 25
7.2.1 Dimensions . 25
7.2.2 Reduced top clearances . 25
7.2.3 Extendable balustrade . 25
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7.2.4 Reduced bottom clearances . 26
7.2.5 Extendable car apron . 26
Annex A (normative) List of the electric safety devices . 27
Annex B (normative) Examination of pre-triggered stopping system . 28
B.1 General provisions . 28
B.2 Statement and test samples . 28
B.3 Laboratory tests . 29
B.4 Calculation. 30
B.5 Test report . 32
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/33/EU aimed to be covered . 33
Bibliography . 35
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European foreword
This document (prEN 81-21:2020) has been prepared by Technical Committee CEN/TC 10 “Lifts,
escalators and moving walks”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
This document will supersede EN 81-21:2018.
In comparison with the previous edition, the following significant changes have been made:
— all referenced standards have now been dated ;
— a new Annex ZA has been developed in order to be aligned with the requirements of the EU
Commission Standardization Request “M/549 C(2016) 5884 final”.
No technical changes have been made during this revision.
The content of this document provides the enhanced design rules, examinations and tests for lifts
installed into existing buildings.
This standard is part of the EN 81 series of standards. The structure of the EN 81 series is described in
CEN/TR 81-10:2008.
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Introduction
This document is a type C standard as stated in EN ISO 12100:2010.
The lifts 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 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 provisions of this type C standard.
The main concern dealt with in this document is the reduction of top and pit clearances that may be
required due to site conditions. The adopted principle of safety is based on two levels of achievement:
first by means of an electrical stopping of the lift car, then by means of a mechanical stopping of the lift
car.
When drafting this document, it has been considered for reduced overhead and pit the following:
a) Risk reduction measures that rely solely on operations in compliance with procedures are
considered as not acceptable.
b) The risk reduction measures are automatically (without any intervention) activated, or manually
activated if their use is mistake-proof such that a person cannot come to harm during and after their
deployment, or a combination of both is used.
Within each member state in Europe there may be a definition of what might be considered an existing
building. In order to have a uniform understanding of the requirements of this document, an existing
building within the terms of this document is understood to be one which was already in use before the
lift was installed. A building whose internal structure is completely renewed is considered as a new
building within the terms of this document.
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1 Scope
This document specifies the safety rules related to passenger and goods/passenger lifts installed in
existing buildings where limitations enforced by certain building constraints mean that some
requirements of EN 81-20:2020 cannot be met.
This document is intended to be read and applied in conjunction with EN 81-20:2020. It addresses the
following constraints and gives requirements for alternative solutions:
— existing perforate walls of the lift well;
— reduction in available well are leading to reduced distance between car, counterweight or balancing
weight;
— counterweight or balancing weight in a separate existing well;
— reduced building dimensions and clearances leading to:
— reductions in available space for headroom and pit;
— reduced car roof balustrade dimensions;
— reduced height of sill apron;
— reduced height of machine and/or pulley room;
— reduced available area for access door/trap door;
— reduction in available height of landing doors.
This document is not applicable to lifts installed before the date of its publication.
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.
EN 81-20:2020, Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 20: Passenger and goods passenger lifts
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction
(ISO 12100:2010)
EN ISO 13857:2019, Safety of machinery - Safety distances to prevent hazard zones being reached by upper
and lower limbs (ISO 13857:2019)
ISO 3864-1:2011, Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety
signs and safety markings
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3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 81-20:2020
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
movable stop
mechanical device that under normal operation allows the free movement of the lift between normal
terminal stops
Note 1 to entry: Where a person enters on the car roof or in the pit, the device limits the travel of the car to ensure
sufficient refuge space in the headroom or in the pit.
3.2
triggering device
device for operating a stopping gear by a mechanical linkage when the lift car passes a predetermined
position in the well
Note 1 to entry: This device is activated when an access to the lift well is opened by means of a key.
3.3
stopping gear
mechanical device for stopping, and maintaining stationary the lift car in the case of movement of the lift
car above and/or below a predetermined position in the well to protect person(s) on the car roof and/or
in the pit
3.4
pre-triggered stopping system
system including the triggering device, the stopping gear and a mechanical linkage in between
Note 1 to entry: Under normal operation of the lift, the system allows the free movement of the lift between
normal terminal stops. Where a person enters on the car roof or in the pit the system ensures refuge spaces in the
headroom or in the pit.
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4 List of significant hazards
This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt
with in this document, identified by risk assessment as significant for this type of machinery and which
require action to eliminate or reduce the risk (see Table 1).
Table 1 — List of significant hazards
Hazards Relevant clauses in this
No
as listed in Annex B of EN ISO 12100:2010 document
1 Mechanical hazards due to:
- Machine parts or work pieces, e.g.:
- Accumulation of energy inside the machinery, e.g.:
Crushing hazard 5.5, 5.7
Shearing hazard 5.2 a), 5.4.2
Drawing-in or trapping hazard 5.5.3, 5.7.3
Impact hazard 5.3, 5.4.3, 5.9, 5.10, 5.11, 5.12.
Slip, trip and fall of persons (related to machinery) 5.2 b), 5.4.2, 5.8
- Uncontrolled amplitude of movements 5.4.1, 5.4.3
- From insufficient mechanical strength of parts 5.5.2.3.2 d), 5.6.1.2 a),
5.7.2.3.2 d), 5.8.1
- Falling of person from person carrier 5.6, 5.8.1
8 Hazards generated by neglecting ergonomic principles in
machinery design as, e.g. hazards from:
Access 5.4.2 d), 5.9, 5.10, 5.11, 5.12
Inadequate local lighting 5.4.2 h), 5.4.2 i)
Unhealthy postures 5.5.1
Human error, human behaviour 5.5.4, 5.7.4, 7.2
From abnormal conditions of assembly / testing / use / 5.4, 5.5, 5.6, 5.7, 5.8
maintenance
9 Hazards associated with the environment in which the
machine is used
Failure of the power supply 5.5.2.5.1.1, 5.5.3.1, 5.5.3.2,
5.7.2.5.1.1, 5.7.3.1, 5.7.3.2
Failure of the control circuit 5.5, 5.7
Unexpected start-up, unexpected overrun / overspeed (or
any similar malfunction) from
- Restoration of energy supply after an interruption 5.5.4, 5.7.4
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5 Safety requirements and/or protective measures
5.1 General
Lifts within the scope of this standard shall comply with the relevant safety requirements and/or
protective measures of the following clauses where one or several requirements in EN 81-20:2020
cannot be fulfilled. In addition, lifts shall be designed according to the principles of EN ISO 12100:2010
for relevant but not significant hazards, which are not dealt with by this document.
5.2 Perforate wall of the lift well
Where due to the lift well of the existing lift being perforate clause EN 81-20:2020, 5.2.5.2 shall be
replaced with the following:
Any existing well enclosure shall be perforate provided that:
a) EN ISO 13857:2019, 4.2.4.2 is fulfilled; and
b) a protective imperforate screen shall be provided around the landing door locking devices in order
to prevent any manipulation of the locking devices by means of a rigid rod 0,30 m long.
5.3 Distance between car, counterweight or balancing weight
Where due to existing building constraints the distance between car and counterweight/balancing
weight according to EN 81-20:2020, 5.2.5.5.1 h) cannot be achieved the following shall apply.
The car and its associated components shall be at a distance of at least 25 mm from the counterweight or
balancing weight (if there is one) and its associated components.
To avoid any impact between the car (and its associated components) and the counterweight or balancing
weight (and its associated components), in case of failure of normal guidance, emergency guidance on
the car and counterweight shall be provided to maintain the car and the counterweight in their horizontal
position.
5.4 Counterweight or balancing weight in a separate well
5.4.1 General
Where the counterweight or balancing weight has previously been accommodated in a separate existing
well, and the configuration on site does not permit the installation of a lift having an available car area
sufficient to fulfil the transport needs if the counterweight or balancing weight is repositioned to be in
the same well as the car, the requirements of EN 81-20:2020, 5.2.5.1.2 are added to as follows:
NOTE The standard covers only the installation of one counterweight (or balancing weight) in its own well.
5.4.2 Counterweight or balancing weight well provisions
In case of a separate well for the counterweight/balancing weight, the following requirements apply:
a) all requirements related to the totally enclosed well (EN 81-20:2020, 5.2.1.8 and 5.2.5.2) shall be
fulfilled for the well of the counterweight/balancing weight;
b) inspection doors shall be provided at both ends of the separate well and where necessary between
them to allow safe maintenance and examinations of the well equipment; they shall comply with
EN 81-20:2020, 5.2.3;
c) the distance between inspection doors and equipment requiring maintenance or inspection shall not
exceed 0,7 m;
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d) where a safety gear is installed at the counterweight/balancing weight, inspection doors shall-
provide access to be able to inspect and maintain the full travel of the counterweight/balancing
weight;
e) stopping device(s) accessible on opening the inspection doors at both ends of the separate well shall
be provided, in conformity with the requirements of EN 81-20:2020, 5.12.1.11;
f) electric socket outlets accessible on opening the inspection doors at both ends of the well shall be
provided as defined in EN 81-20:2020, 5.10.7.2;
g) the separate well shall be exclusively used for the lift in compliance with EN 81-20:2020, 5.2.1.2;
h) the separate well shall be provided with permanently installed electric lighting, giving an intensity
of at least 50 lux on the equipment requiring maintenance/inspection;
i) means to switch the separate well lighting shall be provided on opening the inspection door at the
lower end of the well.
5.4.3 Guiding of the counterweight or balancing weight
Where a counterweight or balancing weight is installed into its own well in accordance with 5.4.2, the
requirements of EN 81-20:2020, 5.7.1 are added to as follows:
When travelling in a separate well, the counterweight or the balancing weight shall be guided by ropes
or by the shape of the counterweight or the balancing weight and its well enclosure.
If the counterweight or balancing weight is resting on its buffers it shall be kept in a substantially upright
position by the use of a small distance to the well enclosure or an emergency guiding.
Provisions shall be made so as to avoid the counterweight or the balancing weight to rotate, e.g. by using
equal number of left and right twisted suspension ropes.
Where its shape guides the counterweight or balancing weight, the enclosure of the well shall be
continuous and flush without any protrusion from which the counterweight or the balancing weight can
be blocked. The well enclosure shall be covered by durable material.
In case of ropes as guiding elements, a minimum number of 4 ropes shall be used. Springs or weights shall
tighten the ropes. The horizontal free distance between the counterweight or the balancing weight and
the well enclosure shall be at least 50 mm if the enclosure of the well is continuous and flush otherwise
it shall be increased by 2 mm for each meter of distance between the fixations of the ropes.
5.5 Reduced clearances in the headroom
5.5.1 General
Where due to existing building constraints the dimensional requirements of EN 81-20:2020, 5.2.5.7 for
headroom cannot be met, it shall be replaced by the following:
5.5.2 Devices providing refuge spaces in the headroom
5.5.2.1 General
The devices shall be:
a) either movable stops; or
b) a pre-triggered stopping system.
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5.5.2.2 Movable stops
5.5.2.2.1 General
Automatically operated movable stops shall be designed to prevent damage due to any collision when
they are moved between the fully retracted and extended position.
5.5.2.2.2 Arrangement
5.5.2.2.2.1 In the case of traction drive lifts, the movable stops shall be installed in such a way as to
act on a downwards travelling counterweight to mechanically stop the car.
5.5.2.2.2.2 In the case of positive drive lifts, the movable stops shall be installed in such a way as to
act on an upwards travelling car to mechanically stop the car.
5.5.2.2.2.3 In the case of hydraulic lifts, the movable stops shall consist of one or more devices
external to the jack situated outside of the car projection, the resultant force of which is exerted on the
centre line of the jack.
5.5.2.2.3 Buffering of movable stops
5.5.2.2.3.1 In the case of traction and positive drive lifts the movable stops shall incorporate buffers
or act on buffers complying with EN 81-20:2020, 5.8.1 and 5.8.2.
5.5.2.2.3.2 In the case of hydraulic lifts the design of the movable stops shall be such that the average
retardation of the car does not exceed 1 g and that in case of an indirect acting lift the retardation does
n
not result in slack rope or chain.
5.5.2.3 Pre-triggered stopping system
5.5.2.3.1 General
The pre-triggered stopping system shall include a triggering device with its actuation means for tripping
a mechanical stopping gear by a linkage when the car reaches a fixed tripping point in the up direction.
5.5.2.3.2 The triggering device shall be easily accessible so that examinations and maintenance
operations can be carried out in complete safety from the pit, or from the car roof or from outside of the
well.
5.5.2.3.3 The pre-triggered stopping system shall comply with the following:
a) the stopping gear shall be fixed on the car and act on the guide rails of the car;
b) the stopping gear shall be tripped by a mechanical triggering device using a mechanical linkage for
the tripping operation;
c) the stopping gear shall be kept tripped by the triggering device and the linkage when the car is at any
position above the tripping point;
in case of a release of the stopping gear due to dynamic effects or rescue operations it shall be re-
engaged when the car moves again
...
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