EN 81-50:2020
(Main)Safety rules for the construction and installation of lifts - Examinations and tests - Part 50: Design rules, calculations, examinations and tests of lift components
Safety rules for the construction and installation of lifts - Examinations and tests - Part 50: Design rules, calculations, examinations and tests of lift components
This standard specifies the design rules, calculations, examinations and tests of lift components which are referred to by other standards used for the design of passenger lifts, goods passenger lifts, goods only lifts, and other similar types of lifting appliances.
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Prüfungen - Teil 50: Konstruktionsregeln, Berechnungen und Prüfungen von Aufzugskomponenten
Dieses Dokument legt Konstruktionsregeln, Berechnungen und Prüfungen von Aufzugskomponenten fest, auf die in anderen Normen, die für die Konstruktion von Personenaufzügen, Lastenaufzügen, Güteraufzügen und anderen vergleichbaren Hubeinrichtungen herangezogen werden, verwiesen wird..
Règles de sécurité pour la construction et l'installation des élévateurs - Examens et essais - Partie 50 : Règles de conception, calculs, examens et essais des composants pour élévateurs
La présente norme spécifie les règles de conception, calculs, examens et essais des composants pour élévateurs, dont les prescriptions sont spécifiées dans d'autres normes utilisées pour la conception des ascenseurs, ascenseurs de charge, monte-charge et autres type similaires d'installations d'élévateurs.
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Pregledi in preskusi - 50. del: Pravila konstruiranja, izračuni, pregledi in preskusi sestavnih delov dvigal
General Information
Relations
Overview
EN 81-50:2020 - Safety rules for the construction and installation of lifts - Part 50 - specifies design rules, calculations, examinations and tests of lift components. Adopted by SIST from EN 81-50:2020, this standard defines the type‑examination and testing requirements for components referenced by other EN 81 series standards used in passenger lifts, goods passenger lifts, goods only lifts and similar lifting appliances. It supports conformity assessment and safe design across mechanical, hydraulic and electronic lift subsystems.
Key topics and technical requirements
The standard is structured to guide type examinations, calculations and test methods for critical lift components. Major topics include:
- Type examination procedures (general provisions and certificates) for safety components used in lifts (see Clauses 5.1–5.9).
- Safety gear: requirements and tests for instantaneous and progressive safety gears (Clause 5.3).
- Overspeed governors: checks on characteristics and type examination (Clause 5.4).
- Buffers and shock tests: sample submission and test methods, including pendulum shock testing (Clause 5.5 and 5.14).
- Guide rail calculations: bending, buckling, combined stresses, flange bending and deflection rules (Clause 5.10, Annex C example).
- Traction evaluation and calculation methods for traction lifts (Clause 5.11, Annex D example).
- Suspension rope safety factors and pulley equivalence (Clause 5.12, Annex E examples).
- Hydraulic components: calculation of rams, cylinders, pipes and fittings against overpressure and buckling (Clause 5.13).
- Electronic safety: type examination of safety circuits containing electronic components and PESSRAL (programmable electronic systems in safety related applications for lifts) including design measures and failure exclusion (Clauses 5.6, 5.15–5.16 and Annex B).
- Normative annexes: model type‑examination certificate (Annex A) and informative examples for calculations.
Practical applications - who uses this standard
EN 81-50:2020 is essential for:
- Lift manufacturers and component suppliers designing or certifying safety devices.
- Design engineers performing guide rail, traction and hydraulic calculations.
- Notified bodies, conformity assessors and test laboratories conducting type examinations and issuing certificates.
- Installers, maintenance organizations and safety engineers ensuring components meet required tests and failure‑exclusion criteria.
- Regulators and project specifiers referencing harmonized methods for compliance with safety directives.
Related standards and regulatory context
- Part of the EN 81 series of lift safety standards and aligned to the essential requirements of Directive 2014/33/EU (relationship given in Annex ZA).
- Used in conjunction with other EN 81 parts that reference component requirements and type‑approval methods.
Keywords: EN 81-50:2020, lift components, design rules, examinations and tests, safety gear, overspeed governor, guide rail calculation, traction calculation, PESSRAL, type examination.
Frequently Asked Questions
EN 81-50:2020 is a standard published by the European Committee for Standardization (CEN). Its full title is "Safety rules for the construction and installation of lifts - Examinations and tests - Part 50: Design rules, calculations, examinations and tests of lift components". This standard covers: This standard specifies the design rules, calculations, examinations and tests of lift components which are referred to by other standards used for the design of passenger lifts, goods passenger lifts, goods only lifts, and other similar types of lifting appliances.
This standard specifies the design rules, calculations, examinations and tests of lift components which are referred to by other standards used for the design of passenger lifts, goods passenger lifts, goods only lifts, and other similar types of lifting appliances.
EN 81-50:2020 is classified under the following ICS (International Classification for Standards) categories: 91.140.90 - Lifts. Escalators. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 81-50:2020 has the following relationships with other standards: It is inter standard links to EN 81-50:2014, FprEN ISO 8100-2. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 81-50:2020 is associated with the following European legislation: EU Directives/Regulations: 2014/33/EU; Standardization Mandates: M/549. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 81-50:2020 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2020
Nadomešča:
SIST EN 81-50:2014
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Pregledi in preskusi
- 50. del: Pravila konstruiranja, izračuni, pregledi in preskusi sestavnih delov
dvigal
Safety rules for the construction and installation of lifts - Examinations and tests - Part
50: Design rules, calculations, examinations and tests of lift components
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Prüfungen - Teil
50: Konstruktionsregeln, Berechnungen und Prüfungen von Aufzugskomponenten
Règles de sécurité pour la construction et l'installation des élévateurs - Examens et
essais - Partie 50 : Règles de conception, calculs, examens et essais des composants
pour élévateurs
Ta slovenski standard je istoveten z: EN 81-50:2020
ICS:
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 81-50
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 91.140.90 Supersedes EN 81-50:2014
English Version
Safety rules for the construction and installation of lifts -
Examinations and tests - Part 50: Design rules,
calculations, examinations and tests of lift components
Règles de sécurité pour la construction et l'installation Sicherheitsregeln für die Konstruktion und den Einbau
des élévateurs - Examens et essais - Partie 50 : Règles von Aufzügen - Prüfungen - Teil 50:
de conception, calculs, examens et essais des Konstruktionsregeln, Berechnungen und Prüfungen
composants pour élévateurs von Aufzugskomponenten
This European Standard was approved by CEN on 1 December 2019.
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 81-50:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 5
Introduction . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 List of significant hazards . 9
5 Design rules, calculations, examinations and tests . 11
5.1 General provisions for type examinations of safety components . 11
5.1.1 Object and extent of the tests . 11
5.1.2 General provisions . 11
5.2 Type examination of landing and car door locking devices . 12
5.2.1 General provisions . 12
5.2.2 Examination and tests . 12
5.2.3 Test particular to certain types of locking devices . 15
5.2.4 Type examination certificate . 15
5.3 Type examination of safety gear . 15
5.3.1 General provisions . 15
5.3.2 Instantaneous safety gear . 16
5.3.3 Progressive safety gear . 18
5.3.4 Comments . 21
5.3.5 Type examination certificate . 21
5.4 Type examination of overspeed governors . 22
5.4.1 General provisions . 22
5.4.2 Check on the characteristics of the overspeed governor . 22
5.4.3 Type examination certificate . 23
5.5 Type examination of buffers . 23
5.5.1 General provisions . 23
5.5.2 Samples to be submitted . 24
5.5.3 Test . 24
5.5.4 Type examination certificate . 27
5.6 Type examination of safety circuits containing electronic components and/or
programmable electronic systems (PESSRAL) . 28
5.6.1 General provisions . 28
5.6.2 Test samples . 28
5.6.3 Tests . 29
5.6.4 Type examination certificate . 30
5.7 Type examination of ascending car overspeed protection means . 31
5.7.1 General provisions . 31
5.7.2 Statement and test sample . 31
5.7.3 Test . 32
5.7.4 Possible modification to the adjustments . 33
5.7.5 Test report . 33
5.7.6 Type examination certificate . 33
5.8 Type examination of unintended car movement protection means . 34
5.8.1 General provisions . 34
5.8.2 Statement and test sample . 34
5.8.3 Test . 35
5.8.4 Possible modification to the adjustments . 37
5.8.5 Test report . 37
5.8.6 Type examination certificate . 37
5.9 Type examination of rupture valve/one-way restrictor . 37
5.9.1 General provisions . 37
5.10 Guide rails calculation . 42
5.10.1 Range of calculation . 42
5.10.2 Bending . 42
5.10.3 Buckling . 43
5.10.4 Combination of bending and compression/tension or buckling stresses . 44
5.10.5 Flange bending . 45
5.10.6 Deflections . 46
5.11 Evaluation of traction . 46
5.11.1 Introduction . 46
5.11.2 Traction calculation . 47
5.11.3 Fomulae for a general case . 51
5.12 Evaluation of safety factor on suspension ropes for electric lifts . 54
5.12.1 General . 54
5.12.2 Equivalent number N of pulleys . 54
equiv
5.12.3 Safety factor . 56
5.13 Calculations of rams, cylinders, rigid pipes and fittings . 58
5.13.1 Calculation against over pressure . 58
5.13.2 Calculations of the jacks against buckling . 59
5.14 Pendulum shock tests . 64
5.14.1 General . 64
5.14.2 Test rig . 64
5.14.3 Tests . 64
5.14.4 Interpretation of the results . 65
5.14.5 Test report . 65
5.15 Electronic components - Failure exclusion . 69
5.16 Design rules for programmable electronic systems (PESSRAL) . 76
Annex A (normative) Model form of type examination certificate . 77
Annex B (normative) Programmable electronic systems in safety related applications for lifts
(PESSRAL) . 78
B.1 Common measures . 78
B.2 Specific measures . 80
B.3 Descriptions of possible measures . 84
Annex C (informative) Example for calculation of guide rails . 89
C.1 General . 89
C.2 General configuration for lifts with safety gear . 91
C.2.1 Safety gear operation . 91
C.2.1.1 Bending stress . 91
C.2.1.2 Buckling . 92
C.2.1.3 Combined stress . 92
C.2.1.4 Flange bending . 93
C.2.1.5 Deflections . 93
C.2.2 Normal operation, running . 93
C.2.2.1 Bending stress . 93
C.2.2.2 Buckling . 93
C.2.2.3 Combined stress . 93
C.2.2.4 Flange bending . 93
C.2.2.5 Deflection . 94
C.2.3 Normal operation, loading . 94
C.2.3.1 Bending stress . 94
C.2.3.2 Buckling . 94
C.2.3.3 Combined stress . 94
C.2.3.4 Flange bending . 95
C.2.3.5 Deflections. 95
Annex D (informative) Calculation of traction – Example . 96
Annex E (informative) Equivalent number of pulleys N - Examples . 98
equiv
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/33/EU aimed to be covered . 99
Bibliography . 101
European foreword
This document (EN 81-50:2020) 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 August 2020, and conflicting national standards shall
be withdrawn at the latest by February 2022.
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 81-50:2014.
This document is a revision of EN 81-50:2014. Significant changes made are as follows:
— All externally 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
This standard is the culmination of the progressive development of the EN standards for lifts. Previous
versions of the EN 81-1 and EN 81-2 standards incorporated into EN 81-20:2020 and EN 81-50:2020
include:
— EN 81-1:1985, Safety rules for electric lifts;
— EN 81-1:1998, Safety rules for electric lifts;
— EN 81-1:1998, Corrigendum No 1:1999;
— EN 81-1:1998/A1:2005, incorporating programmable electronic system in safety related
applications for lifts;
— EN 81-1:1998/A2:2004, incorporating machine-room-less lifts;
— EN 81-1:1998+A3:2009, Incorporating unintended car movement with open doors;
— EN 81-2:1987, Safety rules for hydraulic lifts;
— EN 81-2:1998, Safety rules for hydraulic lifts;
— EN 81-2:1998, Corrigendum No 1:1999;
— EN 81-2:1998/A1:2005, incorporating programmable electronic system in safety related
applications for lifts;
— EN 81-2:1998/A2:2004, incorporating machine-room-less lifts;
— EN 81-2:1998+A3:2009, incorporating unintended car movement with open doors.
The content of this standard provides the design rules, calculations, examinations and tests for lifts
component, the requirements of which are specified in other EN 81 series of standards. Therefore this
standard can only be used in conjunction with the standards for specific lift types, e.g. EN 81-20 for
passenger and goods passenger lifts.
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.
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.
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.
Introduction
The object of this standard is to define safety rules related to lifts with a view to safeguarding persons
and objects against the risk of accidents associated with the user-, maintenance- and emergency
operation of lifts.
Reference should be made to the respective introductions of the standards calling for the use of this
standard with regard to persons and objects to be safeguarded, assumptions, principles, etc.
1 Scope
This document specifies the design rules, calculations, examinations and tests of lift components which
are referred to by other standards used for the design of passenger lifts, goods passenger lifts, goods
only lifts, and other similar types of lifting appliances.
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 10025 (series), Hot rolled products of non-alloy structural steels - Technical delivery conditions
EN 12385-5:2002, Steel wire ropes - Safety - Part 5: Stranded ropes for lifts
EN 60068-2-6:2008, Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)
EN 60068-2-14:2009, Environmental testing - Part 2-14: Tests - Test N: Change of temperature
EN 60068-2-27:2009, Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
EN 60112:2003, Method for the determination of the proof and the comparative tracking indices of solid
insulating materials
EN 60664-1:2007, Insulation coordination for equipment within low-voltage systems - Part 1: Principles,
requirements and tests
EN 60947-4-1:2010, Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters -
Electromechanical contactors and motor-starters
EN 60947-5-1:2017, Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and
switching elements - Electromechanical control circuit devices
EN 61508-1:2010, Functional safety of electrical/electronic/programmable electronic safety-related
systems - Part 1: General requirements
EN 61508-2:2010, Functional safety of electrical/electronic/programmable electronic safety-related
systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems
EN 61508-3:2010, Functional safety of electrical/electronic/programmable electronic safety-related
systems - Part 3: Software requirements
EN 61508-7:2010, Functional safety of electrical/electronic/programmable electronic safety-related
systems - Part 7: Overview of techniques and measures
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk
reduction (ISO 12100:2010)
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:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
approved body
organization or manufacturer, operating an approved full quality assurance system to undertake testing
of safety components
3.2
safety component
)
component provided to fulfil a safety function when in use
3.3
type examination certificate
document issued by an approved body carrying out a type-examination in which it certifies that the
product example under consideration complies with the provisions applicable to it
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 standard, identified by risk assessment as significant for this type of machinery and which
require action to eliminate or reduce the risk (see Table 1).
1)
Under the Lifts Directive there is a list of items considered as safety components including safety gear, speed governor,
landing door locks, etc. For the purposes of this standard other components may also be regarded as safety components
where the aim is to certify their safe operation by type testing.
Table 1 — List of significant hazards
Hazards
No Relevant clauses
as listed in Annex B of EN ISO 12100:2010
1 Mechanical hazards due to:
Acceleration, deceleration (kinetic energy) 5.3; 5.4; 5.5; 5.7; 5.8; 5.9
Approach of a moving element to a fixed part 5.2
1 Mechanical hazards due to: (continued)
Elastic elements 5.10; 5.11; 5.12; 5.13
Falling objects 5.3; 5.4; 5.5; 5.9
Gravity (stored energy) 5.3; 5.4; 5.5; 5.9
Height from the ground 5.3; 5.4; 5.5; 5.9
High pressure 5.13
Moving elements 5.2; 5.3; 5.4; 5.5; 5.6; 5.7; 5.8; 5.9; 5.10; 5.11; 5.12;
5.13; 5.14; 5.15; 5.16
Rotating elements 5.4; 5.11; 5.12
Stability 5.10; 5.11; 5.12; 5.13; 5.14
Strength 5.10; 5.11; 5.12; 5.13; 5.14
2 Electrical hazards
Arc 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Electrostatic phenomena 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Live parts 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Not enough distance to live parts under high voltage 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Overload 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Parts which have become live under faulty conditions 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
Short-circuit 5.2; 5.4; 5.6; 5.7; 5.8; 5.15; 5.16
6 Hazards generated by radiation
Low frequency electromagnetic radiation 5.6; 5.15; 5.16
Radio frequency electromagnetic radiation 5.6; 5.15; 5.16
9 Hazards associated with the environment in 5.2; 5.3; 5.4; 5.5; 5.6; 5.7; 5.8; 5.9; 5.10; 5.11; 5.12;
which the machine is used 5.13; 5.14; 5.15; 5.16
5 Design rules, calculations, examinations and tests
5.1 General provisions for type examinations of safety components
5.1.1 Object and extent of the tests
The safety component/device is submitted to a test procedure to verify that insofar as construction and
operation are concerned, it conforms to the requirements imposed by this standard. It shall be checked
in particular that the mechanical, electrical and electronic components of the device are properly rated
and that in the course of time the device does not lose its effectiveness, particularly through wear or
aging. If the safety component is needed to satisfy particular requirements (waterproof, dust proof or
explosion proof construction) supplementary examinations and/or tests under appropriate criteria
shall be made.
5.1.2 General provisions
5.1.2.1 For the purposes of this standard it is assumed that the laboratory undertakes both the
testing and the certification as an approved body. An approved body may be that of a manufacturer
operating an approved full quality assurance system. In certain cases the test laboratory and the body
approved for the issue of type examination certificates may be separate. In these cases the
administrative procedures may differ from those described in this standard.
5.1.2.2 The application for type examination shall be made by the manufacturer of the component
or their authorized representative and shall be addressed to an approved test laboratory.
5.1.2.3 The despatch of samples for examination shall be made by agreement between the
laboratory and the applicant.
5.1.2.4 The applicant may attend the tests.
5.1.2.5 If the laboratory entrusted with the complete examination of one of the components
requiring the supply of a type examination certificate has not available appropriate means for certain
tests or examinations, it may under its responsibility have these made by other laboratories with the
agreement of the applicant.
5.1.2.6 The precision of the instruments shall allow, unless specified, measurements to be made
within the following accuracy:
a) ± 1 % masses, forces, distances, speeds;
b) ± 2 % accelerations, retardations;
c) ± 5 % voltages, currents;
d) ± 5 °C temperatures;
e) recording equipment shall be capable of detecting signals, which vary in time of 0,01 s;
f) ± 2,5 % flow rate;
g) ± 1 % pressure P ≤ 200 kPa;
h) ± 5 % pressure P > 200 kPa.
5.2 Type examination of landing and car door locking devices
5.2.1 General provisions
5.2.1.1 Field of application
These procedures are applicable to locking devices for landing and car doors. It is understood that each
component taking part in the locking of doors and in the checking of the locking forms part of the
locking device.
5.2.1.2 Documents to be submitted
5.2.1.2.1 Schematic arrangement drawing with description of operation
This drawing shall show clearly all the details relating to the operation and the safety of the locking
device, including:
a) the operation of the device in normal service showing the effective engagement of the locking
elements and the point at which the electrical safety device operates;
b) the operation of the device for mechanical checking of the locking position if this device exists;
c) the control and operation of the emergency unlocking device;
d) the type (AC and/or DC) and the rated voltage and rated current.
5.2.1.2.2 Assembly drawing with key
This drawing shall show all parts, which are important to the operation of the locking device, in
particular those required to conform to requirements of this standard. A key shall indicate the list of
principal parts, the type of materials used, and the characteristics of the fixing elements.
5.2.1.3 Test samples
One door locking device shall be submitted to the laboratory.
If the test is carried out on a prototype, it shall be repeated later on a production model.
If the test of the locking device is only possible when the device is mounted in the corresponding door
the device shall be mounted on a complete door in working order. However, the door dimensions may
be reduced by comparison with a production model, on condition that this does not falsify the test
results.
5.2.2 Examination and tests
5.2.2.1 Examination of operation
This examination has the aim of verifying that the mechanical and electrical components of the locking
device are operating correctly with respect to safety, and in conformity with the requirements of this
standard, and the standard calling for this locking device and that the device is in conformity with the
particulars provided in the application.
In particular it shall be verified that:
a) there is at least 7 mm engagement of the locking elements before the electric safety device
operates;
b) it is not possible from positions normally accessible to persons to operate the lift with a door open
or unlocked, after one single action, not forming part of the normal operation.
5.2.2.2 Mechanical tests
5.2.2.2.1 General
These tests have the purpose of verifying the strength of the mechanical locking components and the
electrical components.
The sample of the locking device in its normal operating position is controlled by the devices normally
used to operate it.
The sample shall be lubricated in accordance with the requirements of the manufacturer of the locking
device.
When there are several possible means of control and positions of operation, the endurance test shall
be made in the arrangement which is regarded as the most unfavourable from the point of view of the
forces on the components.
The number of complete cycles of operation and the travel of the locking components shall be
registered by mechanical or electrical counters.
5.2.2.2.2 Endurance test
The locking device shall be submitted to 1 000 000 (±1 %) complete cycles; one cycle comprises one
forward and return movement over the full travel possible in both directions.
The driving of the device shall be smooth, without shocks, and at a rate of 60 (±10 %) cycles per minute.
During the endurance test the electrical contact of the lock shall close a resistive circuit under the rated
voltage and at a current value double that of the rated current.
If the locking device is provided with a mechanical checking device for the locking pin or the position of
the locking element, this device shall be submitted to an endurance test of 100 000 (±1 %) cycles.
The driving of the device shall be smooth, without shocks, and at a rate of 60 (±10 %) cycles per minute.
5.2.2.2.3 Static test
For locking devices intended for hinged doors, a test shall be made consisting of the application over a
total period of 300 s of a static force increasing progressively to a value of 3000 N.
This force shall be applied in the opening direction of the door and in a position corresponding as far as
possible to that which may be applied when a user attempts to open the door. The force applied shall
be 1 000 N in the case of a locking device intended for sliding doors.
5.2.2.2.4 Dynamic test
The locking device, in the locked position, shall be submitted to a shock test in the opening direction of
the door.
The shock shall correspond to the impact of a rigid mass of 4 kg falling in free fall from a height of
0,50 m.
5.2.2.3 Criteria for the mechanical tests
After the endurance test (5.2.2.2.2), the static test (5.2.2.2.3) and the dynamic test (5.2.2.2.4), there shall
not be any wear, deformation or breakage, which could adversely affect safety.
5.2.2.4 Electrical test
5.2.2.4.1 Endurance test of contacts
This test is included in the endurance test laid down in 5.2.2.2.2.
5.2.2.4.2 Test of ability to break circuit
5.2.2.4.2.1 General
This test shall be carried out after the endurance test. It shall check that the ability to break a live circuit
is sufficient. This test shall be made in accordance with the procedure in EN 60947-4-1:2010 and
EN 60947-5-1:2017, the values of current and rated voltage serving as a basis for the tests shall be
those indicated by the manufacturer of the device.
If there is nothing specified, the rated values shall be as follows:
a) Alternating current: 230 V, 2 A;
b) Direct current: 200 V, 2 A.
In the absence of an indication to the contrary, the capacity to break circuit shall be examined for both
AC and DC conditions.
The tests shall be carried out with the locking device in the working position. If several positions are
possible, the test shall be made in the most unfavourable position.
The sample tested shall be provided with covers and electric wiring as used in normal service.
5.2.2.4.2.2 AC locking devices shall open and close an electric circuit under a voltage equal to 110 %
of the rated voltage 50 times, at normal speed, and at intervals of 5 s to 10 s. The contact shall remain
closed for at least 0,5 s.
The circuit shall comprise a choke and a resistance in series. Its power factor shall be 0,7 ± 0,05 and the
test current shall be 11 times the rated current indicated by the manufacturer of the device.
5.2.2.4.2.3 DC locking devices shall open and close an electric circuit under a voltage equal
to 110 % of the rated voltage 20 times, at normal speed, and at intervals of 5 s to 10 s. The contact shall
remain closed for at least 0,5 s.
The circuit shall comprise a choke and a resistance in series having values such that the current
reaches 95 % of the steady-state value of the test current in 300 ms.
The test current shall be 110 % of the rated current indicated by the manufacturer of the device.
5.2.2.4.2.4 The tests are considered as satisfactory if no tracking or arcing is produced and if no
deterioration occurs which could adversely affect safety.
5.2.2.4.3 Test for resistance to leakage currents
This test shall be made in accordance with the procedure in EN 60112:2003. The electrodes shall be
connected to a source providing an AC voltage which is sinusoidal at 175 V, 50 Hz.
5.2.2.4.4 Examination of clearances and creepage distances
The clearances in air and creepage distances shall be in accordance with the requirements laid down in
the standards calling for the use of this standard (e.g. EN 81-20:2020, 5.11.2.2.4).
5.2.2.4.5 Examination of the requirements appropriate to safety contacts and their accessibility
This examination shall be made taking account of the mounting position and the layout of the locking
device, as appropriate.
5.2.3 Test particular to certain types of locking devices
5.2.3.1 Locking device for horizontally or vertically sliding doors with several panels
According to the requirements laid down in the standards calling for the use of this standard the
devices providing direct mechanical linkage between panels (e.g. EN 81-20:2020, 5.3.14.1) or indirect
mechanical linkage (e.g. EN 81-20:2020, 5.3.14.2) are considered as forming part of the locking device.
These devices shall be submitted to the tests mentioned in 5.2.2. The number of cycles per minute in
such endurance tests shall be suited to the dimensions of the construction.
5.2.3.2 Flap type locking device for hinged door
If this device is provided with an electric safety device required to check the possible deformation of the
flap and if, after the static test envisaged in 5.2.2.2.3 there are any doubts on the strength of the device,
the load shall be increased progressively until the safety device begins to open. No component of the
locking device or of the door shall be damaged or permanently deformed by the load applied.
If, after the static test, the dimensions and construction leave no doubt as to its strength, it is not
necessary to proceed to the endurance test on the flap.
5.2.4 Type examination certificate
The certificate shall indicate the following:
a) information according to Annex A;
b) type and application of locking device;
c) the type (AC and/or DC) and values of rated voltage and rated current;
d) in the case of flap type door locking devices: the necessary force to actuate the electric safety device
for checking the elastic deformation of the flap.
5.3 Type examination of safety gear
5.3.1 General provisions
The applicant shall state the range of use provided, i.e.:
— minimum and maximum masses;
— maximum rated speed and maximum tripping speed.
Detailed information shall be provided on the materials used, the type of guide rails and their surface
condition (drawn, milled, ground).
The following documents shall be attached to the application:
a) detailed and assembly drawings showing the construction, operation, materials used, the
dimensions and tolerances on the construction components;
b) in the case of progressive safety gear, also a load diagram relating to elastic parts.
5.3.2 Instantaneous safety gear
5.3.2.1 Test samples
Two gripping assemblies with wedges or clamps and two lengths of guide rail shall be submitted to the
laboratory.
The arrangement and the fixing details for the samples shall be determined by the laboratory in
accordance with the equipment that it uses.
If the same gripping assemblies can be used with different types of guide rail, a new test shall not be
required if the thickness of the guide rails, the width of the grip needed for the safety gear and the
surface state (drawn, milled, ground) are the same.
5.3.2.2 Test
5.3.2.2.1 Method of test
The test shall be made using a press or similar device, which moves without abrupt speed change.
Measurements shall be made of:
a) the distance travelled as a function of the force;
b) the deformation of the safety gear block as a function of the force or as a function of the distance
travelled.
5.3.2.2.2 Test procedure
The guide rail shall be moved through the safety gear.
Reference marks shall be traced onto the blocks in order to be able to measure their deformation.
The distance travelled shall be recorded as a function of the force.
After the test:
a) the hardness of the block and the gripping element shall be compared with the original values
quoted by the applicant. Other analyses may be carried out in special cases;
b) if there is no fracture, deformations and other changes shall be examined (for example, cracks,
deformations or wear of the gripping elements, appearance of the rubbed surfaces);
c) if necessary, photographs shall be taken of the block, the gripping elements and the guide rail for
...
SIST EN 81-50:2020の標準化文書は、リフトの構造および設置に関する安全規則の一部として、リフト部品の設計規則、計算、検査、および試験に関する詳細を提供しています。この標準は、旅客リフト、貨物用旅客リフト、貨物専用リフトなどの設計に使用される他の標準を参照するための基盤を築いており、その範囲は非常に広範です。 この標準の強みは、リフトの安全性を確保するための明確な指針を提供している点です。設計者や技術者がリフト部品の設計において遵守すべき具体的な計算や試験方法が示されており、これによりリフトの性能を向上させることができます。また、リフト部品に関する包括的な規則は、標準化されたプロセスを通じて業界全体の品質を向上させることに寄与しています。 さらに、SIST EN 81-50:2020は、最新の技術的進歩と産業動向を反映しています。この標準が策定されることで、リフトの設計、建設、設置における安全性が強化され、市場のニーズに応じた柔軟性も提供されています。そのため、さまざまなリフトアプリケーションにおける適応性が高く、各種条件においても信頼性のあるリフトの運用が可能です。 全体として、SIST EN 81-50:2020は、リフト業界における基準として、設計、検査、試験の各プロセスにおいて重要な役割を果たしており、その適用範囲と強みは、品質と安全性を確保する上で極めて重要です。
SIST EN 81-50:2020 표준은 승강기 구성 요소의 설계 규칙, 계산, 검사 및 시험에 대한 안전 규칙을 명확히 규정하고 있습니다. 이 표준은 승객 승강기, 화물 승객 승강기, 화물만 운반하는 승강기 및 유사한 종류의 리프팅 장치의 설계에 사용되는 다른 표준에서 참조되는 기준으로, 설계 및 설치 과정에서의 안전성을 확보하는 데 중요한 역할을 합니다. 이 표준의 강점은 명확하고 구체적인 설계 규칙을 제공함으로써 다양한 승강기 시스템의 설계 및 설치에 대한 신뢰성을 높인다는 것입니다. 또한, 승강기 구성 요소의 검증 절차와 시험 방법을 포함하여, 품질 및 안전성을 보장할 수 있는 포괄적인 프레임워크를 제공합니다. SIST EN 81-50:2020은 건축 및 엔지니어링 분야에서 승강기 설계의 일관성을 촉진하고, 각종 리프팅 장치의 성능을 최대화하는 데 기여합니다. 또한, 이 표준은 규제 준수 측면에서도 큰 의의를 지니며, 승강기 설치 및 운영에 있어 법적 요구 사항을 충족할 수 있도록 방향을 제시합니다. 설계자와 기술자들이 이 표준에 따라 작업할 경우, 승강기의 안전성이 보장될 뿐만 아니라, 일반 대중의 안전도 증진되며, 각종 리프팅 장치의 신뢰성을 높일 수 있습니다. 따라서 SIST EN 81-50:2020 표준은 승강기와 관련된 모든 이해관계자, 특히 설계자와 설치업체에게 필수적으로 적용되어야 할 중요한 문서이며, 승강기 산업의 발전과 안전성을 지키는 데 핵심적인 역할을 수행하고 있습니다.
Le document SIST EN 81-50:2020 constitue une référence essentielle dans le domaine des règles de sécurité pour la construction et l'installation d'ascenseurs. Cette norme se concentre spécifiquement sur les règles de conception, les calculs, ainsi que les examens et tests des composants d'ascenseurs. Le champ d'application de cette norme est vaste, puisqu'il englobe les ascenseurs pour passagers, les ascenseurs de marchandises, ainsi que d'autres appareils de levage similaires. Parmi les points forts de l’EN 81-50:2020, sa rigueur dans l’établissement de critères de conception clairs et la fourniture de méthodes de calcul précises permettent d'assurer la sécurité et l'efficacité des installations d'ascenseurs. La norme met également en avant l'importance des examens et tests, garantissant ainsi que les composants soient soumis à des vérifications adéquates permettant de minimiser les risques d’accidents et d’assurer la conformité aux exigences de sécurité. La pertinence de cette norme dans le secteur de l'ascenseur est indéniable, car elle sert de référence standardisée pour les fabricants et les installateurs. En intégrant les dernières avancées technologiques et les meilleures pratiques de l'industrie, SIST EN 81-50:2020 soutient à la fois l'innovation et la sécurité, contribuant à un environnement de levage plus fiable et sécurisé. La standardisation de ces règles favorise également une compréhension commune et une mise en œuvre cohérente à travers différents pays, ce qui est crucial dans une industrie globalisée. En résumé, l’EN 81-50:2020 est une norme incontournable qui définit des niveaux de sécurité élevés pour la conception et l'installation d'ascenseurs, tout en facilitant la standardisation internationale des pratiques industrielles.
Die Norm EN 81-50:2020 legt umfassende Sicherheitsregeln für die Konstruktion und Installation von Aufzügen fest. Ihr spezifischer Fokus liegt auf den Entwurfsregeln, Berechnungen, Prüfungen und Tests von Aufzugkomponenten, die auch in anderen relevanten Normen für die Gestaltung von Personenaufzügen, Lastenaufzügen, nur für Güter bestimmten Aufzügen sowie ähnlichen Hebeeinrichtungen Anwendung finden. Ein herausragendes Merkmal der EN 81-50:2020 ist ihre umfassende Systematik, die dazu beiträgt, die Sicherheit und Zuverlässigkeit von Aufzügen durch klare und präzise Vorgaben zu erhöhen. Die Norm funktioniert als essenzielle Referenz für Fachleute, die in der Planung, Konstruktion und Prüfung von Aufzügen tätig sind. Die Berechnungsrichtlinien sind ausgewogen und beinhalten aktuelle technische Erkenntnisse, was ihre Relevanz in der Praxis verstärkt. Ein weiterer Stärke dieser Norm ist die Integration strenger Prüfmethoden, die sicherstellen, dass alle Komponenten zuverlässig und sicher sind. Diese Prüfungen sind unerlässlich, um die Einhaltung von Sicherheitsstandards während des gesamten Lebenszyklus des Aufzugs zu gewährleisten. Durch die genaue Definition der Prüfanforderungen und Designvorgaben fördert die EN 81-50:2020 die Qualitätssicherung in der Aufzugindustrie. Insgesamt bietet die EN 81-50:2020 eine solide Grundlage für die Entwicklung sicherer und effizienter Aufzugsysteme. Ihre Relevanz erstreckt sich nicht nur auf die geltenden Vorschriften und Sicherheitsanforderungen, sondern auch auf die Verbesserung der Branchenpraxis in der Entwicklung und Installation von Aufzügen. Die Norm stellt sicher, dass die lebenswichtigen Sicherheitsstandards in der Aufzugstechnologie gewahrt bleiben und weiterentwickelt werden.
The standard EN 81-50:2020 is a critical document that focuses on the safety rules for the construction and installation of lifts. Specifically, it addresses the design rules, calculations, examinations, and tests of lift components, which are essential for ensuring the reliability and safety of various types of lifting appliances, including passenger lifts and goods lifts. One of the key strengths of this standard is its comprehensive approach to the design of lift components. By specifying detailed design rules, it provides clarity and direction for engineers and manufacturers involved in the lift industry. This clarity aids in reducing ambiguities in lift design, thus enhancing overall safety and effectiveness throughout the construction and installation process. Furthermore, EN 81-50:2020 outlines the requisite calculations and tests necessary for verifying the integrity and performance of lift components. This not only ensures compliance with safety regulations but also promotes a standardized methodology that can be consistently applied across various projects, thereby elevating the quality of lifts installed worldwide. The relevance of this standard cannot be overstated, especially in light of ongoing advancements in lift technology and increased regulatory scrutiny for safety. With the rising demand for mobility solutions in buildings, the integration of these design rules into other standards used for lift construction is timely and essential. The harmonization it provides enhances interoperability among different systems, which is increasingly vital as urban infrastructures expand. Overall, EN 81-50:2020 serves as a cornerstone document in the lift industry, strengthening safety protocols while promoting innovation and standardization in the design and testing of lift components. Its focus on rigorous examinations and tests underscores a commitment to both safety and quality that is necessary for modern lifting appliances.
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