SIST EN 81-28:2022
(Main)Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods - Part 28: Remote alarm on passenger and goods passenger lifts
Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods - Part 28: Remote alarm on passenger and goods passenger lifts
This document covers the risk of entrapment of users in the car and in the well, and gives the technical requirements for the alarm systems for passenger and goods passenger lifts, as described in the EN 81 series.
This includes:
- activation of the alarm,
- transmission of the alarm,
- information for use and maintenance,
- site testing to verify the requirements of this document have been met before the lift is used.
Excluded are:
- the failure of the communication network (see Annex A), including mobile network signal strength or similar;
- the failure of the network power supply such that all the lifts in a geographical area create entrapment simultaneously.
This document is not applicable to alarm systems for lifts installed before the date of its publication.
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den Personen- und Gütertransport - Teil 28: Fern-Notruf für Personen- und Lastenaufzüge
Dieses Dokument beschreibt die Risiken des Eingeschlossenseins von Benutzern im Fahrkorb und im Schacht und beschreibt technische Anforderungen für Notrufsysteme für Personen- und Lastenaufzüge, so wie sie in der EN 81-Reihe beschrieben sind.
Dies schließt ein:
- Aktivierung des Alarms,
- Übertragung des Alarms,
- Informationen zur Benutzung und Wartung,
- Prüfungen an der Anlage, um die Wirksamkeit der Anforderungen dieses Dokuments zu prüfen, bevor die Anlage benutzt wird.
Dies schließt nicht ein:
- der Ausfall des Kommunikationsnetz (siehe Anhang A), einschließlich der Signalstärke des Mobilfunknetzes oder Vergleichbarem;
- in einem geografischen Gebiet der Ausfall der Energieversorgung nicht dazu führt, dass gleichzeitig bei allen Aufzügen ein Einschließen von Personen auftritt.
Dieses Dokument gilt nicht für Notrufsysteme für Aufzüge, die vor Veröffentlichung dieser Norm eingebaut wurden.
Règles de sécurité pour la construction et l'installation des élévateurs - Élévateur pour le transport de personnes et d'objets - Partie 28 : Téléalarme pour ascenseurs et ascenseurs de charge
Le présent document couvre les risques d'enfermement des usagers dans la cabine et dans la gaine, et donne les exigences techniques pour les systèmes de demande de secours pour les ascenseurs et ascenseurs de charge, tels que décrits dans la série de normes EN 81.
Cela inclut :
- activation de l'alarme ;
- transmission de l'alarme ;
- informations d'utilisation et de maintenance ;
- essais sur site pour vérifier que les exigences du présent document sont satisfaites avant l'utilisation de l'ascenseur.
Sont exclus :
- la défaillance du réseau de communication (voir l'Annexe A), y compris la force du signal du réseau de communications mobiles ou autre ;
- la défaillance de l'alimentation électrique du réseau, de sorte que tous les ascenseurs d'une zone géographique donnée conduisent à un enfermement simultané.
Le présent document n'est pas applicable aux systèmes de demande de secours installés avant sa date de publication.
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz oseb in blaga - 28. del: Alarmi v osebnih in osebno-tovornih dvigalih
Ta dokument obravnava tveganje ujetosti uporabnikov v kabini in jašku ter podaja tehnične zahteve za alarmne sisteme za osebna in tovorna dvigala, kot je opisano v seriji standardov EN 81.
To vključuje:
– sprožitev alarma;
– posredovanje alarma;
– informacije za uporabo in vzdrževanje;
– preskušanje na mestu uporabe, da se pred uporabo dvigala preveri, ali so izpolnjene zahteve iz tega dokumenta.
Izključeni so:
– odpoved komunikacijskega omrežja (glej dodatek A), vključno z močjo signala mobilnega omrežja ali podobno;
– izpad napajalnega omrežja, zaradi katerega vsa dvigala na določenem geografskem območju hkrati povzročijo ujetost uporabnikov.
Ta dokument se ne uporablja za alarmne sisteme za dvigala, vgrajena pred datumom njegove objave.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 81-28:2022
01-september-2022
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz
oseb in blaga - 28. del: Alarmi v osebnih in osebno-tovornih dvigalih
Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 28: Remote alarm on passenger and goods passenger lifts
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den
Personen- und Gütertransport - Teil 28: Fern-Notruf für Personen- und Lastenaufzüge
Règles de sécurité pour la construction et l'installation des élévateurs - Élévateur pour le
transport de personnes et d'objets - Partie 28 : Téléalarme pour ascenseurs et
ascenseurs de charge
Ta slovenski standard je istoveten z: EN 81-28:2022
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
SIST EN 81-28:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 81-28:2022
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SIST EN 81-28:2022
EN 81-28
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 13.320; 91.140.90 Supersedes EN 81-28:2018+AC:2019
English Version
Safety rules for the construction and installation of lifts -
Lifts for the transport of persons and goods - Part 28:
Remote alarm on passenger and goods passenger lifts
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 28 : Téléalarme pour Gütertransport - Teil 28: Fern-Notruf für Personen-
ascenseurs et ascenseurs de charge und Lastenaufzüge
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 81-28:2022 E
worldwide for CEN national Members.
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SIST EN 81-28:2022
EN 81-28:2022 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Safety requirements and/or protective/risk reduction measures . 8
4.1 General . 8
4.1.1 Introduction . 8
4.1.2 Alarm information . 8
4.1.3 End of alarm . 8
4.1.4 Emergency electrical power supply . 9
4.1.5 Visible and audible signals in the lift car . 9
4.1.6 Alarm filtering .10
4.1.7 Identification .11
4.1.8 Communication .11
4.2 Technical characteristics .11
4.2.1 Availability / reliability .11
4.2.2 Electrical interface .11
4.2.3 Alarm initiation device.11
4.2.4 Accessibility to alarm equipment .11
4.2.5 Modification of parameters .12
5 Information for use .12
5.1 Information to be provided with the lift .12
5.2 Information for the rescue service .12
6 Verification of the safety requirements and/or protective measures .13
6.1 General .13
6.2 Examinations and tests .14
6.2.1 General .14
6.2.2 Alarm (4.1.2) .14
6.2.3 End of alarm (4.1.3) .14
6.2.4 Emergency electrical power supply (4.1.4), if applicable .14
6.2.5 Information in the lift car (4.1.5) .14
6.2.6 Communication (4.1.8), alarm filtering (4.1.6), identification (4.1.7).14
7 Marking .15
Annex A (normative) Typical 2-way communication between lift(s) and rescue service .16
Annex B (informative) General information for the operation of rescue services .17
B.1 General .17
B.2 Operation .17
B.3 Response time .17
B.4 Identification .18
2
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SIST EN 81-28:2022
EN 81-28:2022 (E)
B.5 Communication . 18
B.6 Back-up service . 18
B.7 Testing . 18
B.8 Training . 18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/33/EU aimed to be covered . 19
Bibliography . 20
3
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SIST EN 81-28:2022
EN 81-28:2022 (E)
European foreword
This document (EN 81-28:2022) 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 December 2022, and conflicting national standards shall
be withdrawn at the latest by June 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 81-28:2018+AC:2019.
In comparison with EN 81-28:2018+AC:2019, the following significant changes have been made:
— normative references have been updated;
— Annex ZA has been modified.
No technical changes have been made in Clause 4 during this revision.
This document is intended to be used in conjunction with the 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 81-28:2022
EN 81-28:2022 (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.
5
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SIST EN 81-28:2022
EN 81-28:2022 (E)
1 Scope
This document specifies the technical requirements for the alarm systems for passenger and goods
passenger lifts, as described in the EN 81 series.
This includes:
— activation of the alarm,
— transmission of the alarm,
— information for use and maintenance,
— site testing to verify the requirements of this document have been met before the lift is used.
Excluded are:
— the failure of the communication network (see Annex A), including mobile network signal strength
or similar;
— the failure of the network power supply such that all the lifts in a geographical area create
entrapment simultaneously.
This document deals with the following significant hazards, hazardous situations or hazardous events
relevant to lift, when it is used as intended and under conditions of misuse which are reasonably
foreseeable by the manufacturer:
— risk of entrapment of users in the car and in the well.
This document is not applicable to alarm systems for 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)
ISO 4190-5:2006, Lift (Elevator) installation — Part 5: Control devices, signals and additional fittings
6
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SIST EN 81-28:2022
EN 81-28:2022 (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
alarm
status between a person who is entrapped pushing the initiation device until the time all rescue actions
are completed
3.2
acknowledgement
confirmation (answer) by the rescue service to the alarm equipment that the alarm has been received
3.3
alarm equipment
part of the alarm system able to detect, identify, validate as true alarm and initiate 2-way communication
Note 1 to entry: The alarm equipment is part of the lift.
3.4
end of alarm
information issued by the alarm system and destined for the rescue service in order to inform it that the
entrapment situation is ended
3.5
alarm initiation device
device intended for users trapped in the lift installation in order to call for external assistance,
exemplified in Annex A
3.6
alarm system
combination of alarm initiation device(s) and alarm equipment exemplified in Annex A
3.7
human response
response performed directly by a person of the rescue service via the alarm system
3.8
reception equipment
equipment outside of the lift (e.g. at the rescue service) capable of handling alarm identification and 2-
way communication exemplified in Annex A
7
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SIST EN 81-28:2022
EN 81-28:2022 (E)
3.9
rescue service
organization in charge of receiving alarm identification and rescuing users trapped in the lift installation,
exemplified in Annex A
Note 1 to entry: A rescue service can be part of the maintenance organization.
Note 2 to entry: See Annex B.
3.10
transmitter
part of a 2-way communication system which sends voice and data to the reception equipment
exemplified in Annex A
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Introduction
Alarm systems shall comply with the safety requirements and/or protective measures of Clause 4.
In addition, alarm systems 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.
4.1.2 Alarm information
The alarm equipment shall ensure that subject to 4.1.6 alarm filtering, the full alarm identification
(see 4.1.7) will be emitted until acknowledgement, even during maintenance.
If an emission fails before acknowledgement, the delay between re-emission(s) shall be reduced to the
minimum compatible with the communication network.
If the communication is interrupted any re-emission after acknowledgement shall not be impeded by the
alarm equipment. The alarm system shall be able to accept communication from the rescue service until
the end of the alarm has occurred.
Emission of the alarm identification to the transmitter shall not be delayed, except during alarm filtering.
Between the acknowledgement and the end of alarm, any alarm filtering shall be bypassed.
After acknowledgement, if the communication is interrupted, the alarm equipment shall stop automatic
re-emission.
4.1.3 End of alarm
Means shall be provid
...
SLOVENSKI STANDARD
oSIST prEN 81-28:2020
01-december-2020
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Dvigala za prevoz
oseb in blaga - 28. del: Alarmi v osebnih in osebno-tovornih dvigalih
Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 28: Remote alarm on passenger and goods passenger lifts
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den
Personen- und Gütertransport - Teil 28: Fern-Notruf für Personen- und Lastenaufzüge
Règles de sécurité pour la construction et l'installation des élévateurs - Élévateur pour le
transport de personnes et d'objets - Partie 28 : Téléalarme pour ascenseurs et
ascenseurs de charge
Ta slovenski standard je istoveten z: prEN 81-28
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
oSIST prEN 81-28:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 81-28:2020
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oSIST prEN 81-28:2020
DRAFT
EUROPEAN STANDARD
prEN 81-28
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2020
ICS 13.320; 91.140.90 Will supersede EN 81-28:2018+AC:2019
English Version
Safety rules for the construction and installation of lifts -
Lifts for the transport of persons and goods - Part 28:
Remote alarm on passenger and goods passenger lifts
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 28 : Téléalarme pour Gütertransport - Teil 28: Fern-Notruf für Personen-
ascenseurs et ascenseurs de charge und Lastenaufzüge
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 81-28:2020 E
worldwide for CEN national Members.
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Safety requirements and/or protective measures . 7
4.1 General . 7
4.2 Technical characteristics . 9
5 Information for use . 10
5.1 Information to be provided with the alarm system . 10
5.2 Information to be provided with the lift . 10
5.3 Information for the rescue service . 11
6 Verification of the safety requirements and/or protective measures . 11
6.1 General . 11
6.2 Examinations and tests . 13
7 Marking . 14
Annex A (normative) Typical 2-way communication between lift(s) and rescue service . 15
Annex B (informative) General information for the operation of rescue services . 16
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/33/EU aimed to be covered . 18
Bibliography . 19
2
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
European foreword
This document (prEN 81-28:2020) 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 81-28:2018.
Significant changes made are as follows:
— All externally referenced standards have now been dated;
— Editorial corrections to assist in understanding;
— 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 design rules, examinations and tests for alarm systems for lifts.
This document is intended to be used in conjunction with the parts of the EN 81 series of standards calling for
the use of this standard, which give 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.
3
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
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 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.
4
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
1 Scope
This document covers the risk of entrapment of users in the car and in the well, and gives the technical
requirements for the alarm systems for passenger and goods passenger lifts, as described in the EN 81 series.
This includes:
— activation of the alarm,
— transmission of the alarm,
— information for use and maintenance,
— site testing to verify the requirements of this document have been met before the lift is used.
Excluded are:
— the failure of the communication network (see Annex A), including mobile network signal strength or
similar;
— the failure of the network power supply such that all the lifts in a geographical area create entrapment
simultaneously.
This document is not applicable to alarm systems for 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)
ISO 4190-5:2006, Lift (Elevator) installation - Part 5: Control devices, signals and additional fittings
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
alarm
status between a person who is entrapped pushing the initiation device until the time all rescue actions are
completed
5
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
3.2
acknowledgement
confirmation (answer) by the rescue service to the alarm equipment that the alarm has been received
3.3
alarm equipment
part of the alarm system able to detect, identify, validate as true alarm and initiate 2-way communication
Note 1 to entry: The alarm equipment is part of the lift.
3.4
end of alarm
information issued by the alarm system and destined for the rescue service in order to inform it that the
entrapment situation is ended
3.5
alarm initiation device
device intended for users trapped in the lift installation in order to call for external assistance, exemplified in
Annex A
3.6
alarm system
combination of alarm initiation device(s) and alarm equipment exemplified in Annex A
3.7
human response
response performed directly by a person of the rescue service via the alarm system
3.8
reception equipment
equipment outside of the lift (e.g. at the rescue service) capable of handling alarm identification and 2-way
communication exemplified in Annex A
3.9
rescue service
organization in charge of receiving alarm identification and rescuing users trapped in the lift installation,
exemplified in Annex A
Note 1 to entry: A rescue service can be part of the maintenance organization.
Note 2 to entry: See Annex B.
3.10
transmitter
part of a 2-way communication system which sends voice and data to the reception equipment exemplified in
Annex A
6
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oSIST prEN 81-28:2020
prEN 81-28:2020 (E)
4 Safety requirements and/or protective measures
4.1 General
4.1.1 Introduction
Alarm systems shall comply with the safety requirements and/or protective measures of Clause 4.
In addition, alarm systems 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.
4.1.2 Alarm information
The alarm equipment shall ensure that subject to 4.1.6 alarm filtering, the full alarm identification (see 4.1.7)
will be emitted until acknowledgement, even during maintenance.
If an emission fails before acknowledgement, the delay between re-emission(s) shall be reduced to the
minimum compatible with the communication network.
If the communication is interrupted any re-emission after acknowledgement shall not be impeded by the
alarm equipment. The alarm system shall be able to accept communication from the rescue service until the
end of the alarm has occurred.
Emission of the alarm identification to the transmitter shall not be delayed, except during alarm filtering.
Between the acknowledgement and the end of alarm, any alarm filtering shall be bypassed.
After acknowledgement, if the communication is interrupted, the alarm equipment shall stop automatic re-
emission.
4.1.3 End of alarm
Means shall be provided to enable indication, from the alarm system to the rescue service, that the alarm has
been dealt with and no user is trapped in the lift.
The end of alarm shall be initiated at lift installation from which the alarm call was made. The means to initiate
the end of alarm shall be accessible only to competent persons.
Resetting of the alarm by a signal coming from the rescue centre shall be possible.
4.1.4 Emergency electrical power supply
Any alarm shall not be impeded or lost even in cases of electrical power supply switching or power supply
failure.
Where an emergency electrical power supply is used, means shall be provided to automatically inform the
rescue service and to indicate at the installation of the failure of the emergency electrical power supply. This
is considered to occur whenever the emergency electrical power supply is incapable of holding sufficient
capacity to provide one hour of function of the alarm system including 15 minutes voice communication.
If the transmitter is integrated in the alarm system (e.g. GSM-module), the requirements of the standard
regarding the emergency electrical power supply apply to the transmitter.
4.1.5 Visible and audible signals in the lift car
The alarm system shall be equipped with visible and audible signals, integrated in or above the car operating
panel, consisting of:
a) a yellow graphical symbol in accordance with ISO 4190-5:2006, Table C.1, No 1, illuminated when an
alarm has been validated as a true alarm, i.e. after the end of filtering, until the end of alarm;
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b) an audible signal with a sound pressure level at 1m from the source between 35 dB(A) and 65 dB(A)
adjustable to suit the site conditions when an alarm has been validated as a true alarm, i.e. after the end
of filtering, until the voice communication is established. The acoustic signal is not required to be
continuous;
c) a green graphical symbol in accordance with ISO 4190-5:2006, Table C.1, No 8., illuminated during voice
communication.
See Figure 1 which clarifies the operation of the visible and audible signals.
Figure 1 — Visible and audible signals flowchart
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4.1.6 Alarm filtering
Provision shall be made to enable the alarm system to filter alarm initiations.
For this purpose, the filter shall be capable of not initiating the alarm when any of the following events occur:
— when the car is in an unlocking zone and the car and landing doors are fully open, or in the case of hinged
landing doors, the car doors are fully open and landing doors are unlocked;
— the car is running.
Where the alarm system is designed to filter inadvertent alarm initiations by setting a minimum time to
operate the alarm initiation device, thi
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