SIST EN 81-40:2009

SLOVENSKI oSIST prEN 81-40:2005

PREDSTANDARD
januar 2005
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) – Posebna
dvigala za prevoz oseb in blaga – 40. del: Priprave za vzpenjanje po stopnicah
in dvižne ploščadi z diagonalnim pomikanjem za osebe z omejenimi gibalnimi
sposobnostmi
(istoveten prEN 81-40:2004)
Safety rules for the construction and installation of lifts - Special lifts for the transport
of persons and goods - Part 40: Stairlifts and inclined lifting platforms intended for
persons with impaired mobility
ICS 91.140.90 Referenčna številka
oSIST prEN 81-40:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
DRAFT
prEN 81-40
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS

English version
Safety rules for the construction and installation of lifts - Special
lifts for the transport of persons and goods - Part 40: Stairlifts
and inclined lifting platforms intended for persons with impaired
mobility
Règles de sécurité pour la construction et l'installation des Sicherheitsregeln für die Konstruktion und den Einbau von
élévateurs - Élévateurs spéciaux pour le transport des Aufzügen - Spezielle Aufzüge für den Personen- und
personnes et des charges - Partie 40 : Ascensièges et Gütertransport - Teil 40: Treppenschrägaufzüge und
plates-formes élévatrices inclinées à l'usage des personnes Plattformaufzüge mit geneigter Fahrbahn für Behinderte
à mobilité réduite
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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 81-40:2004: E
worldwide for CEN national Members.

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prEN 81-40:2004 (E)
Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .6
3 Terms and definitions .7
4 List of significant hazards .9
5 Safety requirements and/or protective measures.13
6 Verification of safety requirements and/or protective measures .37
7 Information for use .40
Annex A (normative) Verification tests for overspeed governor and safety gear .49
Annex B (normative) Electronic components: failure exclusion.51
Annex C (informative) Guidance in selection of stairlifts.58
Annex D (informative) Recommendations for the provisions and use of specially adapted control
devices, switches and sensors .60
Annex E (informative) In-use periodic examination, tests and servicing .61
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EEC.62

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prEN 81-40:2004 (E)
Foreword
This document (prEN 81-40:2004) 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.
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prEN 81-40:2004 (E)
Introduction
The standard is a Type C standard as stated in EN 1070.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
The stairlifts defined in this standard are suitable for Type A and Type B wheelchairs as defined in EN 12183
and/or EN 12184.
When provisions of this type C standard are different from those which are stated in type A and type B
standards the provisions of this type C standard take precedence over the provisions of the other standards,
for machines that have been designed and built according to the provisions of this type C standard.
Those items relevant to lifting platforms referenced within EN 81-70 have been included within this standard.
Assumptions
With the aim of clarifying the intentions of the standard and avoiding doubts when reading it, the following
assumptions were made when producing it:
 components without specific requirements are:
a) designed in accordance with the usual engineering practice and calculation codes, including all
failure modes;
b) of sound mechanical and electrical construction;
c) general electrical hazards are dealt with according to B level electrical safety standards.
 components are kept in good repair and working order, so that the required characteristics remain despite
wear;
 by design of the load bearing elements, a safe operation of the machine is assured throughout the entire
load range;
 with the exception of the items listed below, a mechanical device built according to good practice and the
requirements of the standard, will not deteriorate to a point of creating a hazard without the possibility of
detection;
 to ensure the safe functioning, the operating temperature range of the equipment has to take into account
the conditions of the place of use of the machinery, inside the range of ambient temperature between
0 °C and +40 °C.
Negotiation occurs between the manufacturer and the user concerning the specificity of the use and places of
use of the stairlift:
 the place of installation allows a safe use for the machine;
 any additional fire protection requirements.
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prEN 81-40:2004 (E)
1 Scope
1.1 This European standard deals with safety requirements for construction, manufacturing, installation,
maintenance and dismantling of electrically operated stairlifts (chair, standing platform and wheelchair
platform) affixed to a building structure, moving in an inclined plane and intended for use by persons with
impaired mobility:
 travelling between fixed levels, over a staircase or an accessible inclined surface;
 intended for use by one person;
 the inclination should not exceed 75° from the horizontal, with the exception of landing areas where a
maximum vertical rise of 500 mm is permissible;
 whose carriage is directly retained and guided by a guide rail or rails;
 supported or sustained by, chain, rack and pinion, screw and nut, friction traction drive, rope and ball;
 with hold-to-run control;
 with rated speed not exceeding 0.15 m/s.
1.2 The standard identifies hazards as listed in clause 4 which arise during the various phases in the life of
such equipment and describes methods for the elimination or reduction of these hazards when used as
intended by the manufacturer.
1.3 European standard does not specify the additional requirements for:
 operation in severe conditions (e.g. extreme climates, strong magnetic fields);
 lightning protection;
 operation subject to special rules (e.g. potentially explosive atmospheres);
 handling of materials the nature of which could lead to dangerous situations;
 the use of energy systems other than electricity;
 hazards occurring during manufacture;
 earthquakes, flooding, fire;
 noise and vibrations;
 type C wheelchairs as defined in EN 12183 and/or EN 12184;
 evacuation during a fire;
 stairlifts for goods only;
 concrete, hardcore, timber or other foundation or building arrangement;
 the design of anchorage bolts to the supporting structure.
1.4 This document is not applicable to power operated stairlifts which are manufactured before the date of
publication of this document by CEN.
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prEN 81-40:2004 (E)
2 Normative references
The following referenced documents are indispensable for the application 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 81-1, Safety rules for the construction and installation of lifts — Part 1: Electric lifts.
EN 294:1992, Safety of machinery — Safety distances to prevent danger zones being reached by the upper
limbs.
EN 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body.
HD 384-5, Selection and erection of electrical equipment — Chapter 54: Earthing arrangements and
protective conductors.
EN 418, Safety of machinery — Emergency stop equipment, functional aspects — Principles for design.
ISO/DIS 606:2000, Short pitch transmission precision roller and bush chains, attachments and associated
chain sprockets.
EN 953:1997, Safety of machinery — Guards — General requirements for the design and construction of fixed
and moveable guards.
EN 1050:1996, Safety of machinery — Principles for risk assessment.
EN 1070:1998, Safety of machinery — Terminology.
EN 12385-4:2002, Steel wire ropes — Safety stranded ropes for general lifting applications.
EN 12183:1999, Manually propelled wheelchairs — Requirements and test methods.
EN 12184:1999, Electrical powered wheelchairs, scooters and their chargers — Requirements and test
methods.
EN 60204-1:2000, Safety of machinery — Electrical equipment of machines — Part 1: General requirements.
EN 60204-32:1998, Safety of machinery — Electrical equipment of machines — Part 32: Requirements for
hoisting machines (IEC 60204-32:1998).
EN 60364, Electrical installation of buildings.
IEC 60417-1:1998, Graphical symbols for use on equipment.
EN 60529:1991, Degrees of protection provided by enclosures (IP-Code) (IEC 60529:1989).
EN 60617-1:1985, Graphical symbols for diagrams, Part 1: General information, general index. Cross
reference tables.
EN 60742:1995, Isolating transformers and safety isolating transformers — Requirements.
IEC 60947-1:1999, Low voltage switchgear and control gear Part 1: General rules.
EN 60947-4-1:2000, Low-voltage switchgear and control gear — Part 4-1: Contactors and motor-starters -
Electromechanical contactors and motor-starters (IEC 60947-4-1:2000).
EN 60947-5-1:1997, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching
elements — Electromechanical control circuit devices (IEC 60947-5-1:1997).
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prEN 81-40:2004 (E)
EN ISO 12100-1, Safety of machinery – Basic concepts, general principles for design – Part 1: Basic
terminology, methodology (ISO 12100-1:2003).
EN ISO 12100-2, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical
principles (ISO 12100-2:2003).
IEC 61508-2:2000, Requirements for electrical/electronic/programmable electronic safety related systems.
IEC 61508-3:2000, Functional safety of electrical/electronic/programmable electronic safety related systems.
ISO 7000:1998, Graphical symbols for use on equipment: index and synopsis.
ISO 9085:2002, Guidance concerning the calculation of load capacity of spur and helical gears.
3 Terms and definitions
For the purposes of this European standard the terms and definitions given in EN 1070, EN 81-1 and the
following apply:
3.1
barrier arm
bar or similar device so arranged as to provide, protection against falling from a stairlift
3.2
brake
a mechanism employed to bring the stairlift to stop and hold it in position
3.3
carriage
a mobile trolley which is retained, supported and guided by one or more rails, upon which a chair, platform or
other purpose made adaptation to carry the user is supported and securely attached
3.4
chainwheel
wheel having teeth specially designed to engage with a chain
3.5
drive system
a generic term covering the various drive unit arrangements that cause the carriage to move under power
input
3.6
drive unit
the unit including the motor that drives and stops the stairlift
3.7
driving nut
internally threaded annular component that acts in conjunction with a screw to produce linear motion of the
carriage
3.8
driving screw
externally threaded driving component that acts in conjunction with a nut
3.9
electric safety chain
the total of the electric safety devices connected in series
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prEN 81-40:2004 (E)
3.10
final limit switch
the last safety switch
3.11
guide rail
the rigid components which provide guiding for the carriage
3.12
guided chain
chain that is either fixed or moving, and is completely guided over its entire length such that it may transmit a
load either in thrust or tension
3.13
guided rope
rope that is either fixed or moving, and is completely guided over its entire length such that it may transmit a
load either in thrust or tension
3.14
overspeed governor
a device which, when the stairlift attains a pre-determined speed, causes the stairlift to stop and if necessary
causes the safety gear to be applied
3.15
rack
a bar with teeth with which a driving pinion engages to form a slip free driving means converting rotary motion
into linear motion
3.16
rated load
the load for which the equipment has been designed
3.17
rated speed
the nominal speed v in metres per second of the stairlift for which the equipment has been built
3.18
safety gear
a mechanical device for stopping and maintaining the carriage stationary on the guide rail/s in case of
overspeeding in the downward direction or breaking of the suspension
3.19
safety nut
internally threaded annular component, used in conjunction with a screw/nut drive, so arranged that it does
not normally carry the load but is capable of doing so in the event of failure of the threads in the main driving
nut
3.20
self-sustaining drive system
a system that, under free running conditions, ensures that the speed of the stairlift decreases
3.21
sensitive edge
a device attached to any edge to provide protection against a trapping, shearing or crushing hazard
3.22
sensitive surface
a device similar in effect to a sensitive edge but so arranged to protect a whole surface
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prEN 81-40:2004 (E)
3.23
slack rope/chain switch
switch or combination of switches, arranged to stop the stairlift if any suspension rope or chain slackens by a
pre-determined amount
3.24
stairlift
an appliance for transporting a person (either seated or standing) or person in a wheelchair between two or
more landings by means of a guided carriage moving in an inclined plane
3.25
terminal switch
a switch or combination of switches arranged to stop the stairlift at or near a landing
3.26
unlocking zone
a zone extending above and below a landing in which the carriage must be positioned to enable the
corresponding ramp(s) and barrier arm(s) to be unlocked
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.
The significant hazards are based upon EN 1050. Also shown are the sub clause references to the safety
requirements and/or protective measures in this standard.
Before using this standard it is important to carry out risk assessment of the Stairlift to check that its hazards
have been identified in this clause.
Table1 shows the hazards which have been identified and where the corresponding requirements have been
formulated in this standard, in order to limit the risk or reduce these hazards in each situation.
NOTE Hazards resulting from allergic reactions to persons are not addressed in this standard, but advice on such
materials is given Annex D of EN 81-70.
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prEN 81-40:2004 (E)
Table 1 — Significant hazards relating to the general design and construction of stair lifts
Relevant clauses in
Hazards
prEN 81-40
1 Mechanical hazards
 5
 5.3.1.7
 5.4
a) Shape
b) relative location:
c) mass and stability(potential energy of elements which
may move under the effect of gravity);
d) mass and velocity (kinetic energy of elements in controlled motion);
e) inadequacy of energy inside the machinery e.g);
 accumulation of energy inside the machinery e.g:
f) elastic elements (springs);
g) liquids and gasses under pressure
h) the effect of vacuum
1.1 Crushing hazard 5.6.2.4, 5.6.3.5, 5.6.4.10
1.2 Shearing hazard 5.6.2.4, 5.6.3.5, 5.6.4.10
1.3 Cutting or severing hazard 5.6.2.4.5
1.4 Entanglement hazard 5.4.7.4
1.5 Drawing-in or trapping hazard 5.1.8, 5.4.1.2 , 5.4.4.5, 5.4.6.3,
5.4.7.4
1.6 Impact hazard 5.6.4.4
1.7 Stabbing or puncture hazard 5.1.8
1.8 Friction or abrasion hazard 5.6.2.4.5
1.10 Falling hazard 5.2.1.1, 5.3.1.7
2 Electrical hazards
2.1 Electrical contact of persons with live parts 5.5.11, 5.5.12, 5.1.7
2.2 Electrical contact of persons with parts which have become live under faulty 5.5.1.2, 5.5.11
conditions
2.3 Approach to live part under high voltage 5.5.4.1, 5.5.1.3
2.4 Electrostatic phenomena 5.5.1.2, 5.5.12.10
3 Thermal hazards
3.1 Burns and scalds 5.5.8, 5.5.1.3
3.2 Health-damaging effects 5.1.6, 5.1
7.1 Contact with or inhalation of harmful fluids, gases, mists, fumes and dusts 5.1.3
7.2 Fire or explosion 5.1.6, 5.1.3.1
8 Hazards generated by neglecting ergonomic principles in machine design
8.1 Unhealthy postures or excessive effort Annex E, 5.2.2.2, 5.6.4.4, 5.3.4
8.2 Inadequate consideration of human hand/arm or foot/leg anatomy 5.6.1.2, Annex C 1.2,
8.4 Inadequate area lighting Annex C2
8.6 Human error 5.5.14, 5.5.9.7, 5.5.7, 7.4
8.7 Inadequate design, location or identification of manual controls 7.3.4, 7.3.5. 7.3.6, 7.4.1, 5.5.14,
5.1.2
(to be continued)

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prEN 81-40:2004 (E)
Table 1 — Significant hazards relating to the general design and construction of stair lifts (continued)
Relevant clauses in
Hazards
prEN 81-40
8.8 Inadequate design or location of visual display units 7.3.3
Hazards caused by failure of energy supply, breaking down of machinery
10
parts and other functional disorders
10.1 Failure/disorder of the control system 5.5.5.1, 5.5.14.1.4, 5.4.2.1
5.5.15, 5.6.5.5, 5.4.2, 5.5.3.3,
5.5.5.1, 6.3
10.2 Restoration of the energy after an interruption 5.5.5.1, 5.5.14.1.4, 5.5.2.4,
5.5.3.2, 5.5.5.1, 6.3
10.5 Errors in software 6.3, 5.5.6.5
10.6 Errors made by the operator ( due to mismatch of machinery with human 5.5.14, 5.4.3,
characteristics and abilities, see 5.5.6 5.5.9.7, 7
11 Impossibility of stopping the machine in the best possible conditions
11.1 unsafe position 5.5.15, 5.2.3.1,5.4.2.1
11.2 Overspeeding 5.4.2, 5.5.3.3, 5.5.5.1
13 Failure of the power supply
13.1 Overspeeding 5.4.2, 5.5.3.3, 5.5.5.1
13.2 unexpected start 5.5.5.1, 5.5.14.1.4
13.3 Change of direction 5.5.2.4, 5.5.3.2, 5.5.5
13.4 Loss of memory 5.5.5.1, 6.3
13.5 Unsafe position 5.2.4, 5.4.2, 5.5.15.1
13.6 Entrapment 5.4.3, 5.5.16, 5.6.4.7.2, 5.6.4.9,
5.6.4.11
14 Failure of the control circuit
14.1 Errors on software 5.5.6.5, 6.3
14.2 Failure to stop 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6,
6.3
14.3 Unexpected stop 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6,
6.3
14.4 Unexpected start 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6,
6.3
14.5 External influences 5.1.7.3
14.6 Unexpected start 5.5.5.1, 5.5.13.1, 5.5.14.1.4
14.7 Failure to start 5.6.3.4
14.8 Maintenance operation 5.4.3, 7.3.5, 7.3.6
14.9 Unexpected activation 5.4.3, 5.6.4.12
14.10 Brake remains lifted 5.3, 5.4.2.2, 5.5.3.1
14.11 Prevent stopping 5.4.2, 5.5.3.2
14.12 Ineffective protection 5.6.4.6, 5.6.4.10, 5.6.2.4.1
14.13 Isolation 5.5.9
15 Errors of fitting 5.5.9.2.1, 5.5.9.3
(to be continued)

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prEN 81-40:2004 (E)
Table 1 — Significant hazards relating to the general design and construction of stair lifts (continued)
Relevant clauses in
Hazards
prEN 81-40
16 Break-up during operation
16.1 Stress failure 5.5.4
16.2 Falling 5.5.4, 5.6.2.5, 5.6.3.3, 5.6.4.6,
5.6.4.7, 5.6.4.8
17 Falling or ejected objects or fluid
17.1 falling objects 5.6.4.5, 5.6.4.6.3, 5.6.3.2.1
18 Loss of stability / overturning of machinery
18.1 Overturning 5.2, 5.3.1.7
18.2 Falling 5.2, 5.3.1.7, 5.6.2
19 Slip, trip and fall of persons (related to machinery)
19.1 Slipping 5.6.2, 5.6.4.1
19.2 Tripping 5.6.3.2
19.3 Falling 5.6.4.6.1, 5.6.4.6.3, 5.6.4.7,
5.6.4.5.2.
27 Mechanical hazards and hazardous events
27.1 from load falls, collisions, machine tipping caused by:
27.1.1 lack of stability 5.2.1
27.1.2 uncontrolled loading- overloading- overturning moments exceeded 5.5.8, 5.6.4.3, 6.3
27.1.3 uncontrolled amplitude of movements 5.1.4, 5.1.5, 5.4.2, 5.4.2.2, 6,3
27.1.4 unexpected/unintended movement of loads 5.1.4, 5.1.5, 5.4.2, 5.4.2.2, 6,3
27.1.5 inadequate holding devices/ accessories 7.3

27.3 from derailment 5.1.6.2, 5.2.1,5.2.3.1, 5.2.2.
27.4 from insufficient mechanical strength of parts 5.1.1, 5.1.6
27.5 from inadequate design of pulleys, drums 5.4.1.3
27.6 from inadequate selection of chains, ropes, lifting and accessories and their 5.4.1.3, 5.4.4, 5.4.1.5, 5.4.1.6,
inadequate integration into the machine 5.4.7.2, 7.3.1
27.7 from lowering of the load under the control of the friction break 5.4.2.1
27.8 from abnormal conditions of assembly/testing/use/maintenance 6.3, 7.4
27.9 From the effect of load on the persons (impact by load or counterweight 5.2.2.2, 6.4
29 Hazards generated by neglecting ergonomic principles
29.1 insufficient visibility from the driving position 5.6.4.12, 6.3
34 Mechanical hazards and hazardous events due to:
34.1 Inadequate mechanical strength – inadequate working coefficients 5.1.1, 5.1.5, 5.1.6, 5.4.1.3,
5.4.4.1, 5.4.5.1, 5.4.5.2,5.4.6,
5.4.6.1, 5.4.7.5, 5.4.6.2, 5.4.7.1,
5.4.8, 5.4.9, 5.4.10.1, 5.4.11.1,
5.4.11.2, 5.4.12.1, 5.4.14.1.1,
5.4.14.1.2, 5.4.14.1.3
34.2 Failing of loading control 5.5.1.1
34.3 Failing of controls in person carrier (function, priority) 5.5.14.3, 5.5.14.1
(to be continued)

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prEN 81-40:2004 (E)
Table 1 — Significant hazards relating to the general design and construction of stair lifts (continued)
Relevant clauses in
Hazards
prEN 81-40
34.4 Overspeed of persons carrier 5.1.4, 5.3.1, 5.3.2, 5.3.5, 5.3.6,
5.3.7, 5.3.8, 5.4.1.2, 5.4.2.2,
5.4.7.3
35 Falling of person from person carrier 5.1.6.1, 5.6.2.4, 5.6.4.4
36 Falling or overturning of person carrier
36.1 Preventing of falling or overturning 5.3
36.2 Acceleration and braking 5.1.4, 5.3.6, 5.4.2.1
37 Human error, human behaviour 5.5.14, 7.
5 Safety requirements and/or protective measures
5.1 General requirements for stairlifts
Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition,
the machine shall be designed according to the principles of EN 292 for hazards relevant but not significant,
which are not dealt with in this document (e.g. sharp edges).
It shall be ensured that the dimensions specified in this standard are maintained despite wear. Consideration
shall also be given to the need for protection against the effects of corrosion. The transmission of noise and
vibration to any surrounding walls and other supporting structures shall be minimised.
All materials shall be asbestos free.
The positioning of the stairlift at the terminal or intermediate stops shall be such that the main entry or exit
doors to the building can be fully opened.
5.1.1 Pattern of use
The mechanical design of the stairlift shall take account of the intended use and frequency to which it will be
subjected, as determined by the manufacturer. With a minimum of 10 stairlift starts per hour.
NOTE One stairlift start equals a single complete journey between levels.
5.1.2 Access for maintenance, repair and inspection
Stairlifts shall be designed, constructed and installed such that components requiring periodic inspection,
testing, maintenance or repair shall be accessible so that it can be safely readily carried out. Information
concerning these activities is provided in clause 7.
5.1.3 Fire resistance
Materials used in the construction of the stairlift shall not support combustion, neither shall they be dangerous
through the toxic nature and quantity of gas and fumes they may generate in a fire situation.
Plastic components and electrical wiring insulation shall be flame retardant and self-extinguishing.
Materials shall have flame retardant properties to the following classifications as appropriate
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prEN 81-40:2004 (E)
Table 2 — Fire resistance classification
Material type Applicable standard Class designation
Cellular plastic materials having EN ISO 9772 Cellular plastics – HF-1
3
Determination of horizontal burning
densities less than 250 kg/m
characteristics of small specimens subjected
to a small flame.
Thin, flexible plastic materials EN ISO 9773 Plastics – Determination of VTM-0
burning behaviour of thin flexible vertical
specimens in contact with a small-flame
ignition source.
Solid and cellular plastic and EN 60695-11-10 Fire hazard testing – Test Horizontal burning –
other non-metallic materials flames – 50 W horizontal and vertical flame HB40
having a density of not less than test methods.
Vertical burning –
3
250 kg/m
V-0.
5.1.4 Rated speed
The rated speed of the stairlift in the direction of travel shall not be greater than 0.15 m/s when measured at
the reference points defined in Figures 1 and 2.
5.1.5 Rated load
Stairlifts shall be designed for a capacity of one person, for which the rated load shall be not less than 115 kg.
2
Platform stairlifts shall be designed so that the minimum rated load is not less than 250 kg/m .
5.1.5.1 Load control
Wheelchair platform stairlifts shall be fitted with a device to prevent normal starting in the event of overload on
the platform. The overload is considered to occur when the rated load is exceeded by 75 kg.
In the event of overload users shall be informed by an audible and/or visible signal on the platform:
5.1.6 Resistance to operating forces
5.1.6.1 The complete stairlift installation shall resist, without permanent deformation, the forces imposed
on it during normal operation, during the application of the safety devices and at impact on mechanical stops
when travelling at the rated speed. However, local deformation that does not affect the operation of the stairlift
arising from the safety gear gripping device is permissible.
5.1.6.2 Guiding components, their attachments and joints shall withstand deflections due to uneven
loading without affecting normal operation.
5.1.6.3 A fatigue stress analysis shall be made for all load bearing components and joints, which are
critical to fatigue. This analysis shall take into account the degree of stress fluctuation and the number of
stress cycl
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