Name: BS EN 81-20:2020 PDF - PDF Standards Store
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1.1 This document specifies the safety rules for permanently installed new passenger or goods passenger lifts, with traction, positive or hydraulic drive, serving defined landing levels, having a car designed for the transportation of persons or persons and goods, suspended by ropes, chains or jacks and moving between guide rails inclined not more than 15° to the vertical.

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PDF Pages	PDF Title
2	undefined
10	0 Introduction
11	0.3 Principles 0.4 Assumptions
15	1 Scope
16	2 Normative references
18	3 Terms and definitions
25	4 List of significant hazards
27	5 Safety requirements and/or protective measures 5.1 General 5.2 Well, machinery spaces and pulley rooms 5.2.1 General provisions 5.2.1.1 Arrangement of lift equipment
28	5.2.1.2 Exclusive use of the well, machine and pulley rooms 5.2.1.3 Ventilation of the well, machinery spaces and pulley rooms 5.2.1.4 Lighting
29	5.2.1.5 Electric equipment in the pit and in machinery spaces and pulley rooms
30	5.2.1.6 Emergency release 5.2.1.7 Handling of equipment 5.2.1.8 Strength of walls, floors and ceilings
32	5.2.1.9 Surfaces of walls, floors and ceilings 5.2.2 Access to well and to machinery spaces and pulley rooms
33	5.2.3 Access and emergency doors – Access trap doors – Inspection doors
34	5.2.4 Notices
35	5.2.5 Well 5.2.5.1 General provisions 5.2.5.2 Well enclosure
38	5.2.5.3 Construction of the walls of the well and landing doors facing a car entrance
40	5.2.5.4 Protection of any spaces located below the well 5.2.5.5 Protection in the well
41	5.2.5.6 Guided travel of car, counterweight and balancing weight
42	5.2.5.7 Refuge spaces on car roof and clearances in headroom
46	5.2.5.8 Refuge spaces and clearances in the pit
48	5.2.6 Machinery spaces and pulley rooms 5.2.6.1 General provisions 5.2.6.2 Notices and instructions
49	5.2.6.3 Machinery in a machine room
50	5.2.6.4 Machinery inside the well
54	5.2.6.5 Machinery outside of the well 5.2.6.6 Devices for emergency and test operations
55	5.2.6.7 Construction and equipment of pulley rooms
56	5.3 Landing doors and car doors 5.3.1 General provisions 5.3.2 Height and width of entrances 5.3.2.1 Height 5.3.2.2 Width 5.3.3 Sills, guides, door suspension 5.3.3.1 Sills 5.3.3.2 Guides 5.3.3.3 Suspension of vertically sliding doors
57	5.3.4 Horizontal door clearances
58	5.3.5 Strength of landings and car doors 5.3.5.1 General 5.3.5.2 Behaviour under fire conditions 5.3.5.3 Mechanical strength
62	5.3.6 Protection in relation to door operation 5.3.6.1 General 5.3.6.2 Power operated doors
64	5.3.6.3 Reversal of closing movement 5.3.7 Local landing lighting and “car here” signal lights 5.3.7.1 Local landing lighting 5.3.7.2 “Car here” indication
65	5.3.8 Locking and closed landing door check 5.3.8.1 Protection against the risk of falling 5.3.8.2 Protection against shearing 5.3.9 Locking and emergency unlocking of landing and car doors 5.3.9.1 Landing door locking devices
67	5.3.9.2 Car door locking devices 5.3.9.3 Emergency unlocking
68	5.3.9.4 Electric safety device for proving the landing door closed 5.3.10 Requirements common to devices for proving the locked condition and the closed condition of the landing door 5.3.11 Sliding landing doors with multiple, mechanically linked panels
69	5.3.12 Closing of automatically operated landing doors 5.3.13 Electric safety device for proving the car doors closed 5.3.14 Sliding or folding car doors with multiple, mechanically linked panels
70	5.3.15 Opening the car door 5.4 Car, counterweight and balancing weight 5.4.1 Height of car 5.4.2 Available car area, rated load, number of passengers 5.4.2.1 General case
72	5.4.2.2 Goods passenger lifts
75	5.4.2.3 Number of passengers
76	5.4.3 Walls, floor and roof of the car
77	5.4.4 Car door, floor, wall, ceiling and decorative materials
78	5.4.5 Apron 5.4.6 Emergency trap doors and emergency doors
79	5.4.7 Car roof
83	5.4.8 Equipment on top of the car 5.4.9 Ventilation 5.4.10 Lighting
84	5.4.11 Counterweight and balancing weight 5.5 Suspension means, compensation means and related protection means 5.5.1 Suspension means 5.5.2 Sheave, pulley, drum and rope diameter ratios, rope/chain terminations
85	5.5.3 Rope traction 5.5.4 Winding up of ropes for positive drive lifts
86	5.5.5 Distribution of load between the ropes or the chains 5.5.6 Compensation means
87	5.5.7 Protection for sheaves, pulleys and sprockets
89	5.5.8 Traction sheaves, pulleys and sprockets in the well 5.6 Precautions against free fall, excessive speed, unintended car movement and creeping of the car 5.6.1 General provisions
92	5.6.2 Safety gear and its tripping means 5.6.2.1 Safety gear
93	5.6.2.2 Means of tripping the safety gear
98	5.6.3 Rupture valve
99	5.6.4 Restrictors
100	5.6.5 Pawl device
101	5.6.6 Ascending car overspeed protection means
102	5.6.7 Protection against unintended car movement
105	5.7 Guide rails 5.7.1 Guiding of the car, counterweight or balancing weight 5.7.2 Permissible stresses and deflections 5.7.2.1 General provisions
106	5.7.2.2 Load cases 5.7.2.3 Forces on guide rails
109	5.7.3 Combination of loads and forces 5.7.4 Impact factors 5.7.4.1 Safety device operation 5.7.4.2 Normal operation 5.7.4.3 Auxiliary parts fixed to the guide rail and/ or other operational scenarios 5.7.4.4 Values of impact factors
110	5.7.4.5 Permissible stresses 5.7.4.6 Permissible deflections
111	5.7.4.7 Calculation 5.8 Buffers 5.8.1 Car and counterweight buffers
112	5.8.2 Stroke of car and counterweight buffers 5.8.2.1 Energy accumulation type buffers 5.8.2.2 Energy dissipation type buffers
113	5.9 Lift machinery and associated equipment 5.9.1 General provision 5.9.2 Lift machine for traction lifts and positive drive lifts 5.9.2.1 General provisions
114	5.9.2.2 Braking system
116	5.9.2.3 Emergency operation 5.9.2.4 Speed
117	5.9.2.5 Removing the power which can cause rotation of the motor
118	5.9.2.6 Control devices and monitoring devices
119	5.9.2.7 Motor run time limiter 5.9.3 Lift machine for hydraulic lifts 5.9.3.1 General provision
120	5.9.3.2 Jack
123	5.9.3.3 Piping
124	5.9.3.4 Stopping the machine and checking its stopped condition
125	5.9.3.5 Hydraulic control and safety devices
126	5.9.3.6 Checking the pressure 5.9.3.7 Tank 5.9.3.8 Speed 5.9.3.9 Emergency operation
128	5.9.3.10 Motor run time limiter 5.9.3.11 Protection against overheating of the hydraulic fluid 5.10 Electric installations and appliances 5.10.1 General provisions 5.10.1.1 Limits of application
129	5.10.1.2 Protection against electric shock
130	5.10.1.3 Insulation resistance of the electrical installation (HD 603646:2007) 5.10.2 Incoming supply conductor terminations 5.10.3 Contactors, contactor relays, components of safety circuits 5.10.3.1 Contactors and contactor relays
131	5.10.3.2 Components of safety circuits 5.10.4 Protection of electrical equipment
132	5.10.5 Main switches
133	5.10.6 Electric wiring 5.10.6.1 Conductors and cables 5.10.6.2 Cross-sectional area of conductors 5.10.6.3 Wiring practices
134	5.10.6.4 Connectors 5.10.7 Lighting and socket outlets 5.10.8 Control of the supply for lighting and socket outlets
135	5.10.9 Protective earthing 5.10.10 Electrical identification 5.11 Protection against electric faults; failure analysis; electric safety devices 5.11.1 Protection against electric faults; failure analysis
136	5.11.2 Electric safety devices 5.11.2.1 General provisions
137	5.11.2.2 Safety contacts 5.11.2.3 Safety circuits
140	5.11.2.4 Operation of electric safety devices 5.11.2.5 Actuation of electric safety devices 5.11.2.6 Programmable electronic systems in safety related applications (PESSRAL)
141	5.12 Controls – Final limit switches – Priorities 5.12.1 Control of lift operations 5.12.1.1 Control of normal operation 5.12.1.2 Load control 5.12.1.3 Monitoring the normal slowdown of the machine in case of reduced buffer stroke
142	5.12.1.4 Control of levelling, re-levelling and preliminary operation with doors not closed and locked 5.12.1.5 Control of inspection operation
145	5.12.1.6 Control of emergency electrical operation
146	5.12.1.7 Protection for maintenance operations 5.12.1.8 Landing and car door bypass device
147	5.12.1.9 Prevention of normal operation of the lift with faulty door contact circuits 5.12.1.10 Electrical anti-creep system (see Table 12)
148	5.12.1.11 Stopping devices 5.12.2 Final limit switches 5.12.2.1 General 5.12.2.2 Actuation of the final limit switches
149	5.12.2.3 Method of operation of final limit switches 5.12.3 Emergency alarm device and intercom system
150	5.12.4 Priorities and signals 6 Verification of the safety requirements and/or protective measures 6.1 Technical compliance documentation 6.2 Verification of design
154	6.3 Examinations and tests before putting into service 6.3.1 Braking system (5.9.2.2)
155	6.3.2 Electric installation 6.3.3 Checking of the traction (5.5.3) 6.3.4 Car safety gear (5.6.2)
156	6.3.5 Counterweight or balancing weight safety gear (5.6.2) 6.3.6 Pawl device (5.6.5)
157	6.3.7 Buffers (5.8.1, 5.8.2) 6.3.8 Rupture valve (5.6.3) 6.3.9 Restrictor/one-way restrictor (5.6.4)
158	6.3.10 Pressure test 6.3.11 Ascending car overspeed protection means (5.6.6) 6.3.12 Stopping of the car at landings and levelling accuracy (5.12.1.1.4) 6.3.13 Protection against unintended car movement (5.6.7)
159	6.3.14 Protection against falling/shearing (5.3.9.3.4) 7 Information for use 7.1 General 7.2 Instruction manual 7.2.1 General 7.2.2 Normal use 7.2.3 Maintenance
160	7.2.4 Examinations and tests 7.3 Logbook
162	Annex A (normative)List of the electric safety devices
165	Annex B (informative)Technical compliance documentation
166	Annex C (informative)Periodic examinations and tests, examinations and tests after an important modification or after an accident C.1 Periodic examinations and tests C.2 Examinations and tests after an important modification or after an accident
168	Annex D (informative)Machinery spaces – Access
169	Annex E (informative)Building interfaces E.1 General provisions E.2 Support of Guide Rails E.3 Ventilation of car, well and machine rooms E.3.1 General
170	E.3.2 Ventilation of the well and car
171	E.3.3 Ventilation of machine rooms
172	Annex F (normative)Pit access ladder F.1 Types of pit access ladder F.2 General provisions F.3 Ladder uprights and rungs F.3.1 Ladder uprights
173	F.3.2 Ladder rungs F.4 Specific provisions for non fixed type ladders F.5 Location of the ladder in the pit
175	Annex ZA Annex ZA(informative)Relationship between this European Standard and the essential requirements of Directive 2014/33/EU aimed to be covered

Published By	Publication Date	Number of Pages
BSI	2020	184


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Status	Definitive
Title	Safety rules for the construction and installation of lifts. Lifts for the transport of persons and goods – Passenger and goods passenger lifts
Corrects	BS EN 81-20:2020
Replaces	BS 8486-2:2007+A1:2011, BS 8486-1:2007+A1:2011, BS EN 81-20:2014
Publisher	BSI
Committee	MHE/4
Pages	184
Publication Date	2021-04-29
ISBN	978 0 539 17677 3
Standard Number	BS EN 81-20:2020
Identical National Standard Of	EN 81-20:2020
Descriptors	Emergency exits, Ceilings, Installation, Automatic control systems, Accident prevention, Goods lifts, Lifts, Floors, Lift wells, Doors, Safety devices, Sliding doors, Safety measures, Strength of materials, Roofs, Passenger lifts, Trap doors, Electrically-operated devices, Service lifts, Walls
ICS Codes	91.140.90 - Lifts. Escalators

BS EN 81-20:2020

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