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Finalised version of prEN 81-20 - LIFTeye

CEN/TC 10 WG1 Secretariat "Lifts, service lifts" N du document : N 1072 Date : 2011-07-29 Your correspondent : Eva Contival Direct line : + 33 (0)1 41 62 82 87 Secretary : Ghislane Louzaouen Direct line : + 33 (0)1 41 62 81 26 Finalised version of pren 81-20 Safety rules for the construction and installation of lifts Lifts for the transport of persons and goods Part 20: Passenger and goods passenger lifts COMMENTARIES Dear experts, Please find hereafter the Finalised version of pren 81-20 . This document contains the final changes as agreed at the Oslo meeting as well as editorial improvements made by the editorial committee in June.

Document type: European Standard Document subtype: Document stage: Working Document Document language: E M:\dms\dce\domD202\3-CEN_Comités et projets\Projets EN\EN 81-20 - WI 00010058\2011-07-27_Enquête

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Transcription of Finalised version of prEN 81-20 - LIFTeye

1 CEN/TC 10 WG1 Secretariat "Lifts, service lifts" N du document : N 1072 Date : 2011-07-29 Your correspondent : Eva Contival Direct line : + 33 (0)1 41 62 82 87 Secretary : Ghislane Louzaouen Direct line : + 33 (0)1 41 62 81 26 Finalised version of pren 81-20 Safety rules for the construction and installation of lifts Lifts for the transport of persons and goods Part 20: Passenger and goods passenger lifts COMMENTARIES Dear experts, Please find hereafter the Finalised version of pren 81-20 . This document contains the final changes as agreed at the Oslo meeting as well as editorial improvements made by the editorial committee in June.

2 This version has been transmitted by CEN TC 10 WG1 secretariat to CMC for launch of CEN Enquiry. FOLLOW UP For information Document type: european Standard Document subtype: Document stage: Working Document Document language: E M:\dms\dce\domD202\3-CEN_Comit s et projets\Projets EN\EN 81-20 - WI 00010058\2011-07-27_Enqu te CEN\ pren 81-20 - 2011 07 27 for CEN STD version CEN/TC 10 Date: 2011-07 pren 81-20 :2011 CEN/TC 10 Secretariat: AFNOR Safety rules for the construction and installation of lifts Lifts for the transport of persons and goods Part 20.

3 Passenger and goods passenger lifts Sicherheitsregeln f r die Konstruktion und den Einbau von Aufz gen Aufz ge f r den Personen- und G tertransport Teil 20: Personen- und Lastenaufz ge R gles de s curit pour la construction et l'installation des l vateurs El vateurs pour le transport de personnes et d'objets Partie 20 : Ascenseurs et ascenseurs de charge ICS: Descriptors: pren 81-20 :2011 2 Contents Page 0 Introduction ..5 Assumptions ..7 1 Scope .. 10 2 Normative references .. 10 3 Terms and definitions.

4 13 4 List of significant hazards .. 18 5 Safety requirements and/or protective measures .. 22 22 Lift well, machinery spaces and pulley rooms ..22 General provisions .. 22 Access to lift well and to machinery spaces and pulley rooms .. 26 Access and emergency doors - Access trap doors - Inspection 27 Notices .. 28 Lift 28 Machinery spaces and pulley rooms .. 37 Landing doors and car doors .. 44 General provisions .. 44 Height and width of entrances .. 45 Sills, guides, door 45 Horizontal door 45 Strength of landings and car doors.

5 46 Protection in relation to door operation .. 49 Local landing lighting and car here signal lights .. 51 Locking and closed landing door check .. 52 Locking and emergency unlocking of landing and car doors .. 52 Requirements common to devices for proving the locked condition and the closed condition of the landing door .. 55 Sliding landing doors with multiple, mechanically linked panels .. 55 Closing of automatically operated landing doors .. 56 Electrical device for proving the car doors closed .. 56 Sliding car doors with multiple, mechanically linked 56 Opening the car door.

6 57 Car, counterweight and balancing weight .. 57 Height of car .. 57 Available car area, rated load, number of passengers .. 57 Walls, floor and roof of the 61 Car floor, wall and ceiling materials .. 62 Apron .. 62 Emergency trap doors and emergency doors ..63 Car roof .. 64 Equipment on top of the car .. 66 66 Lighting .. 66 Counterweight and balancing weight .. 66 Suspension means, compensation means and related protection means .. 67 Suspension means .. 67 pren 81-20 :2011 Sheave, pulley, drum and rope diameter ratios, rope/chain terminations.

7 67 Rope traction .. 68 Winding up of ropes for positive drive lifts .. 68 Distribution of load between the ropes or the chains ..68 Compensation means .. 69 Protection for traction sheaves, pulleys and sprockets .. 69 Traction sheaves, pulleys and sprockets in the Precautions against free fall, excessive speed, unintended car movement and creeping of the car .. 71 General provisions .. 71 Safety gear and its tripping 73 Rupture valve .. 78 79 Pawl device .. 80 Ascending car overspeed protection means .. 81 Protection against unintended car movement.

8 82 Guide rails .. 85 Guiding of the car, counterweight or balancing weight .. 85 Permissible stresses and deflections .. 85 Combination of loads and forces .. 88 Impact factors .. 89 Buffers .. 90 Car and counterweight buffers .. 90 Stroke of car and counterweight buffers .. 91 Lift machinery and associated equipment .. 92 General provision .. 92 Lift machine for traction lifts and positive drive 93 Lift machine for hydraulic lifts .. 98 Electric installations and appliances ..106 General provisions .. 106 Incoming supply conductor Contactors, contactor relays -, components of safety 108 Protection of electrical equipment.

9 109 Main switches .. 109 Electric wiring .. 111 Lighting and socket Control of the supply for lighting and socket Protective earthing .. 112 Electrical identification .. 112 Marking of equipment .. 113 Protection against electric faults; failure analysis; electric safety Protection against electric faults; failure analysis ..113 Electric safety devices .. 114 Controls - Final limit switches - Control of lift operations .. 118 Final limit 125 Emergency alarm device and intercom system .. 126 Priorities and signals .. 126 6 Verification of the safety requirements and/or protective measures.

10 127 Technical compliance documentation ..127 Verification of design .. 127 Examinations and tests before putting into service .. 131 Braking system ( ) .. 131 Electric 131 Checking of the traction ( ) ..131 Car safety gear ( ) .. 132 Counterweight or balancing weight safety gear ( ).. 132 Pawl device ( ).. 133 Buffers ( , ).. 133 pren 81-20 :2011 4 Rupture valve ( ).. 134 Restrictor/one s way restrictor ( ) .. 134 Pressure test .. 134 Ascending car overspeed protection means ( ).


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