SIST EN 81-50:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.GYLJDOSicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Prüfungen - Teil 50: Konstruktionsregeln, Berechnungen und Prüfungen von AufzugskomponentenRègles 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 élévateursSafety rules for the construction and installation of lifts - Examinations and tests - Part 50: Design rules, calculations, examinations and tests of lift components91.140.90Lifts. EscalatorsICS:Ta slovenski standard je istoveten z:EN 81-50:2014SIST EN 81-50:2014en,fr,de01-oktober-2014SIST EN 81-50:2014SLOVENSKI
STANDARDSIST EN 81-2:1999SIST EN 81-1:1999+A3:20101DGRPHãþD



SIST EN 81-50:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 81-50
August 2014 ICS 91.140.90 Supersedes EN 81-1:1998+A3:2009, EN 81-2:1998+A3:2009English 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 des élévateurs - Examens et essais - Partie 50: Règles de conception, calculs, examens et essais des composants pour élévateurs
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Prüfungen - Teil 50: Konstruktionsregeln, Berechnungen und Prüfungen von Aufzugskomponenten This European Standard was approved by CEN on 28 May 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 81-50:2014 ESIST EN 81-50:2014



EN 81-50:2014 (E) 2 Contents Page
Foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 List of significant hazards . 7 5 Design rules, calculations, examinations and tests . 8 5.1 General provisions for type examinations of safety components . 8 5.1.1 Object and extent of the tests . 8 5.1.2 General provisions . 9 5.2 Type examination of landing and car door locking devices . 9 5.2.1 General provisions . 9 5.2.2 Examination and tests . 10 5.2.3 Test particular to certain types of locking devices . 12 5.2.4 Type examination certificate . 13 5.3 Type examination of safety gear . 13 5.3.1 General provisions . 13 5.3.2 Instantaneous safety gear . 13 5.3.3 Progressive safety gear . 16 5.3.4 Comments . 19 5.3.5 Type examination certificate . 19 5.4 Type examination of overspeed governors . 19 5.4.1 General provisions . 19 5.4.2 Check on the characteristics of the overspeed governor . 20 5.4.3 Type examination certificate . 21 5.5 Type examination of buffers . 21 5.5.1 General provisions . 21 5.5.2 Samples to be submitted . 21 5.5.3 Test . 22 5.5.4 Type examination certificate . 25 5.6 Type examination of safety circuits containing electronic components and/or programmable electronic systems (PESSRAL) . 26 5.6.1 General provisions . 26 5.6.2 Test samples . 26 5.6.3 Tests . 27 5.6.4 Type examination certificate . 28 5.7 Type examination of ascending car overspeed protection means . 29 5.7.1 General provisions . 29 5.7.2 Statement and test sample . 29 5.7.3 Test . 29 5.7.4 Possible modification to the adjustments . 31 5.7.5 Test report . 31 5.7.6 Type examination certificate . 31 5.8 Type examination of unintended car movement protection means . 31 5.8.1 General provisions . 31 5.8.2 Statement and test sample . 32 5.8.3 Test . 33 5.8.4 Possible modification to the adjustments . 34 5.8.5 Test report . 35 5.8.6 Type examination certificate . 35 SIST EN 81-50:2014



EN 81-50:2014 (E) 3 5.9 Type examination of rupture valve/one-way restrictor . 35 5.9.1 General provisions . 35 5.10 Guide rails calculation . 40 5.10.1 Range of calculation . 40 5.10.2 Bending . 40 5.10.3 Buckling . 41 5.10.4 Combination of bending and compression/tension or buckling stresses . 42 5.10.5 Flange bending . 43 5.10.6 Deflections . 43 5.11 Evaluation of traction . 44 5.11.1 Introduction . 44 5.11.2 Traction calculation . 44 5.11.3 Fomulae for a general case . 49 5.12 Evaluation of safety factor on suspension ropes for electric lifts . 52 5.12.1 General . 52 5.12.2 Equivalent number Nequiv of pulleys . 52 5.12.3 Safety factor . 53 5.13 Calculations of rams, cylinders, rigid pipes and fittings . 55 5.13.1 Calculation against over pressure . 55 5.13.2 Calculations of the jacks against buckling . 57 5.14 Pendulum shock tests . 60 5.14.1 General . 60 5.14.2 Test rig . 61 5.14.3 Tests . 61 5.14.4 Interpretation of the results . 62 5.14.5 Test report . 62 5.15 Electronic components - Failure exclusion . 65 5.16 Design rules for programmable electronic systems (PESSRAL) . 72 Annex A (normative)
Model form of type examination certificate . 73 Annex B (normative)
Programmable electronic systems in safety related
applications for lifts (PESSRAL) . 74 B.1 Common measures . 74 B.2 Specific measures . 76 B.3 Descriptions of possible measures . 78 Annex C (informative)
Example for calculation of guide rails . 83 C.1 General . 83 C.2 General configuration for lifts with safety gear . 85 C.2.1 Safety gear operation . 85 C.2.2 Normal operation, running . 87 C.2.3 Normal operation, loading . 88 Annex D (informative)
Calculation of traction – Example . 90 Annex E (informative)
Equivalent number of pulleys Nequiv - Examples . 92 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 95/16/EC amended by Directive 2006/42/EC . 93 Bibliography . 94
SIST EN 81-50:2014



EN 81-50:2014 (E) 4 Foreword This document (EN 81-50:2014) 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 February 2015 and conflicting national standards shall be withdrawn at the latest by August 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document, in conjunction with EN 81-20:2014 supersedes EN 81-1:1998+A3:2009 and EN 81-2:1998+A3:2009. 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. 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 is the first edition of the standard. The need for replacement was based on the following points: — improvement in safety due to changes in available technology; — the need to reflect changes to the state of the art; — incorporation of essential health and safety requirements from the relevant EU Directives; — elimination of obvious errors; — incorporation of proposals resulting from interpretation requests1); — improvement of the references to other standards according to the progress in that field. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
1) Within CEN/TC 10 an interpretation committee has been established to answer questions about the spirit in which the experts have drafted the various clauses of this standard. All such interpretations are published within CEN TS 81-11 until incorporated by amendment into the standards concerned. SIST EN 81-50:2014



EN 81-50:2014 (E) 5 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. SIST EN 81-50:2014



EN 81-50:2014 (E) 6
1 Scope This European 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. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 81-20:2014, 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 (all parts), Hot rolled products of non-alloy structural steels - Technical delivery conditions EN 12385-5, Steel wire ropes - Safety - Part 5: Stranded ropes for lifts EN 60068-2-6, Environmental testing - Part 2: Tests - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6) EN 60068-2-14, Environmental testing - Part 14: Tests –Test N. Change of temperature (IEC 60068-2-14) EN 60068-2-27, Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock (IEC 60068-2-27) EN 60112, Method for the determination of the proof and the comparative tracking indices of solid insulating materials (IEC 60112) EN 60664-1:2007, Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests (IEC 60664-1:2007) EN 60947-4-1, Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1) EN 60947-5-1, Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices (IEC 60947-5-1) EN 61508-1:2010, Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (IEC 61508-1:2010) 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 (IEC 61508-2:2010) EN 61508-3:2010, Functional safety of electrical/electronic/programmable electronic safety related systems - Part 3: Software requirements (IEC 61508-3:2010) EN 61508-7:2010, Functional safety of electrical/electronic/programmable electronic safety related systems - Part 7: Overview of techniques and measures (IEC 61508-7:2010) EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010) SIST EN 81-50:2014



EN 81-50:2014 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 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 provided2) 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).
2) 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.
SIST EN 81-50:2014



EN 81-50:2014 (E) 8 Table 1 - List of significant hazards No Hazards
as listed in Annex B of EN ISO 12100:2010 Relevant clauses 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 which the machine is used 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
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. SIST EN 81-50:2014



EN 81-50:2014 (E) 9 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: SIST EN 81-50:2014



EN 81-50:2014 (E) 10 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 (A.C. and/or D.C.) 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 th
...