ISO 8100-1:2026

International
Standard
ISO 8100-1
Second edition
Lifts for the transport of persons
2026-03
and goods —
Part 1:
Safety rules for the construction
and installation of passenger and
goods passenger lifts
Ascenseurs pour le transport de personnes et d'objets —
Partie 1: Règles de sécurité pour la construction et l'installation
d'ascenseurs et d'ascenseurs de charge
Reference number
© ISO 2026
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Published in Switzerland
ii
Contents Page
Foreword .vi
Introduction .viii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 4
4 Safety requirements and/or protective measures . 9
4.1 General .9
4.2 Well, machinery spaces and pulley rooms .10
4.2.1 General provisions .10
4.2.2 Access to the pit . 13
4.2.3 Access doors, emergency doors, access trap doors and inspection doors .16
4.2.4 Notices .17
4.2.5 Well .17
4.2.6 Machinery spaces and pulley rooms . 30
4.3 Landing and car doors . 36
4.3.1 General provisions . 36
4.3.2 Height and width of entrances .37
4.3.3 Sills, guides, door suspension .37
4.3.4 Horizontal door clearances . 38
4.3.5 Strength of landing and car doors .42
4.3.6 Protection in relation to door operation . 48
4.3.7 “Car here” indication .57
4.3.8 Locking and closed landing door check . 58
4.3.9 Locking and emergency unlocking of landing and car doors . 58
4.3.10 Requirements common to devices for proving the locked condition and the
closed condition of the landing door .62
4.3.11 Sliding landing doors with multiple, mechanically linked panels .62
4.3.12 Closing of automatically operated landing doors .62
4.3.13 Electric safety device for proving the car door closed .62
4.3.14 Sliding or folding car door with multiple, mechanically linked panels . 63
4.3.15 Opening the car door . 63
4.4 Car, counterweight and balancing weight . 64
4.4.1 Height of car . . . 64
4.4.2 Available car area, rated load, number of passengers. 64
4.4.3 Walls, floor and roof of the car .70
4.4.4 Car door(s), floor, walls, ceiling and decorative materials .71
4.4.5 Apron . 72
4.4.6 Emergency trap doors and emergency doors . 72
4.4.7 Car roof . 73
4.4.8 Equipment on top of the car . 78
4.4.9 Ventilation . 78
4.4.10 Lighting . 78
4.4.11 Counterweight and balancing weight . 79
4.5 Suspension means, compensation means and related protection means . 79
4.5.1 Suspension means and related sheaves/drums/sprockets . 79
4.5.2 Minimum diameter ratio, safety factor, fatigue lifetime and suspension means
terminations . 82
4.5.3 Suspension means traction/transmission . 90
4.5.4 Winding up of ropes for positive drive lifts . 90
4.5.5 Distribution of load between the suspension means.91
4.5.6 Compensation means .91
4.5.7 Protection for sheaves, pulleys and sprockets . 92
4.5.8 Traction sheaves, pulleys and sprockets . 95
4.5.9 Marking of suspension means and compensation means . 95

iii
4.6 Precautions against free fall, excessive speed, unintended car movement and creeping
of the car . . 96
4.6.1 Application of protections means . 96
4.6.2 Safety gear and its tripping means . 97
4.6.3 Rupture valve . 105
4.6.4 Restrictors . 106
4.6.5 Pawl device . 107
4.6.6 Ascending car overspeed protection means . 108
4.6.7 Protection against unintended car movement .110
4.7 Guide rails . 112
4.7.1 Guiding of the car, counterweight or balancing weight . 112
4.7.2 Forces and load cases . 113
4.7.3 Combination of masses and forces .116
4.7.4 Impact factors .116
4.7.5 Permissible stresses and deflections .117
4.8 Buffers . 118
4.8.1 General provisions . 118
4.8.2 Stroke of buffers .119
4.9 Lift machinery and associated equipment. 120
4.9.1 General provision . 120
4.9.2 Lift machine for traction lifts and positive drive lifts . 120
4.9.3 Lift machine for hydraulic lifts . 126
4.10 Electric installations and appliances .134
4.10.1 General provisions .134
4.10.2 Incoming supply conductor terminations . . 137
4.10.3 Contactors, contactor relays, components of safety circuits . 137
4.10.4 Protection of electrical equipment . 138
4.10.5 Main switch, supply disconnecting devices and isolating devices .138
4.10.6 Electric wiring . 140
4.10.7 Lighting and socket outlets .141
4.10.8 Control of the supply for lighting and socket outlets .141
4.10.9 Protective earthing .142
4.10.10 Identification of electrical components .142
4.10.11 Emergency supply .142
4.11 Protection against electric faults; failure analysis; electric safety devices .142
4.11.1 Protection against electric faults; failure analysis .142
4.11.2 Electric safety devices .143
4.12 Electrical Controls . 149
4.12.1 Control of lift operations . 149
4.12.2 Final limit switches .158
4.12.3 Alert initiation and intercom system . 159
4.12.4 Identification of the software . 159
5 Verification of the safety requirements and/or protective measures .159
5.1 Verification methods . 159
5.2 Specific examinations and tests on installed lift . 163
5.2.1 General . 163
5.2.2 Braking system (4.9.2.2) . 163
5.2.3 Electric installation . 164
5.2.4 Checking of the traction (4.5.3) . 164
5.2.5 Car safety gear (4.6.2). 165
5.2.6 Counterweight or balancing weight safety gear (4.6.2) . 165
5.2.7 Pawl device (4.6.5) . . 165
5.2.8 Buffers (4.8) . 166
5.2.9 Rupture valve (4.6.3) . 166
5.2.10 Restrictor/one-way restrictor (4.6.4) . 166
5.2.11 Pressure test .167
5.2.12 Ascending car overspeed protection means (4.6.6) .167
5.2.13 Stopping of the car at landings and levelling accuracy (4.12.1.1.3) .167

iv
5.2.14 Protection against unintended car movement (4.6.7) .167
5.2.15 Protection against falling/shearing (4.3.9.3.4) .167
5.2.16 Balancing of vertically sliding door (4.3.3.3.5) .167
5.2.17 Counterweight balance (4.5.3) .167
5.2.18 Balancing weight balance (4.5.3) . 168
6 Information for use .168
6.1 General . 168
6.2 Instructions . 168
6.2.1 General . 168
6.2.2 Basic data and characteristics . 168
6.2.3 Operating information for use . 169
6.2.4 Information for maintenance, inspection, repair and periodic checks .170
6.2.5 Information for emergency operation . 172
6.3 Logbook. 172
7 Building-related boundary conditions.172
7.1 General provisions . 172
7.2 Plans for the installation in the building . 173
Annex A (normative) List of the electric safety devices .174
Annex B (normative) Information on the building-related conditions in which the lift is installed .176
Annex C (normative) Pit access ladder .181
Annex D (informative) Relationship between this document and ISO 8100-20:2018 .187
Annex E (informative) Operations overview .190
Bibliography .191

v
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 178, Lifts, escalators and moving walks, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 10,
Lifts, escalators and moving walks, in accordance with the Agreement on technical cooperation between ISO
and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 8100-1:2019), which has been technically
revised.
The main changes are as follows:
— requirements for vertically sliding landing and car doors have been added;
— requirements for suspension means other than steel wire ropes have been added;
— requirements for automatic rescue operation have been added;
— requirements for traction lifts with increased available car area have been added;
— requirements for SIL-rated circuits (previously called PESSRAL) have been revised;
— requirements for a working platform in the pit have been added;
— requirements to avoid the dragging of hands in doors have been extended;
— requirements for compensation means entering the refuge space in the pit have been added;
— requirements for the brake have been aligned with overload limits;
— performance and monitoring of the machine brake have been revised;
— requirements for pit access ladders have been revised;
— fire classification of electric cables has been specified;
— requirements for cybersecurity have been added;

vi
— requirements for emergency operation have been revised;
— bypassing normal travel limits in inspection operation has been added;
— SIL levels of the electric safety devices (Annex A) have been revised;
— short circuit between adjacent conductors of travelling cable has been added to electric fault list;
— mechanical strength of luminaires for the well lighting system has been specified;
— requirements for information for use have been revised;
— requirements for tripping the safety gear by electrical means have been added;
— the position of the inspection operation switch has been revised;
— the document structure has been revised as per the ISO/IEC Directives, Part 2.
For relationship with this document and ISO 8100-20:2018, see Annex D.
ISO/TS 8100-3 provides information on the differences between this document local standards (ASME A17.1/
CSA B44 and JIS A 4307 1/JIS A 4307-2) not included in this document.
A list of all parts in the ISO 8100 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

vii
Introduction
This document is a type-C standard as stated in ISO 12100:2010.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate in the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are
covered are indicated in the scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or type-B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
viii
International Standard ISO 8100-1:2026(en)
Lifts for the transport of persons and goods —
Part 1:
Safety rules for the construction and installation of passenger
and goods passenger lifts
1 Scope
This document specifies the safety rules for lifts permanently serving buildings and constructions and
intended for the transport of persons or persons and goods. It applies to traction lifts, positive drive lifts and
hydraulic lifts that:
— serve specific levels; and
— have a rated speed exceeding 0,15 m/s; and
— have an enclosed car; and
— move along guide rails inclined not more than 15° to the vertical; and
— are indoor or weather-protected.
This document also applies to the electrical equipment of these lifts including the lighting and socket outlets
in the well.
This document specifies safety rules related to:
— persons to be safeguarded:
— users, including passengers, maintenance and inspection personnel;
— persons at the landings and outside of the well, or any machinery space and pulley room, who can be
affected by the lift.
— property to be safeguarded:
— loads in the car;
— components of the lift installation;
— building in which the lift is installed.
This document does not specify additional requirements for:
— lifts serving buildings with requirements for seismic conditions;
— lifts serving buildings with requirements for accessibility;
— lifts exposed to vandalism;
— lifts which can be used for firefighting and evacuation purposes under firefighters control;
— lifts which can be used to support faster evacuation of persons with disabilities;
— the behaviour of the lift when the control system of the lift receives a recall signal(s) in the event of fire
in a building.
This document is not applicable to passenger and goods passenger lifts, which are installed before the date
of its publication.
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.
ISO 1219-1:2012, Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1:
Graphical symbols for conventional use and data-processing applications
ISO 4344:2022, Steel wire ropes for lifts — Minimum requirements
ISO 4190-5:2006, Lift (Elevator) installation — Part 5: Control devices, signals and additional fittings
ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their components
ISO 6743-4:2015, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H
(Hydraulic systems)
1)
ISO 7000:2019 , Graphical symbols for use on equipment — Registered symbols
1)
ISO 7010:2019 , Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 8100-2:2026, Lifts for the transport of persons and goods —Part 2: Design rules, calculations, verifications
and tests of lift components
ISO 8100-33:2022, Lifts for the transport of persons and goods — Part 33: T-type guide rails for lift cars and
counterweights
ISO 8102-1:2020, Electrical requirements for lifts, escalators and moving walks — Part 1: Electromagnetic
compatibility with regard to emission
ISO 8102-2:2021, Electrical requirements for lifts, escalators and moving walks — Part 2: Electromagnetic
compatibility with regard to immunity
ISO 8102-20:2022, Electrical requirements for lifts, escalators and moving walks — Part 20: Cybersecurity
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12543-2:2021, Glass in building — Laminated glass and laminated safety glass — Part 2: Laminated safety
glass
ISO 12543-3:2021, Glass in building — Laminated glass and laminated safety glass — Part 3: Laminated glass
ISO 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs
ISO 14122-2:2016, Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms
and walkways
ISO 14122-3:2016, Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders
and guard-rails
ISO 14122-4:2016, Safety of machinery — Permanent means of access to machinery — Part 4: Fixed ladders
ISO 29584:2015, Glass in building — Pendulum impact testing and classification of safety glass
1) The graphical symbol collections of ISO 7000 and ISO 7101 can be previewed and purchased on the Online Browsing
Platform (OBP), www .iso .org/ obp

IEC 60204-1:2016+A1: 2021, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements
IEC 60227-6:2001, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V — Part 6:
Lift cables and cables for flexible connections
IEC 60332-1-2:2025, Tests on electric and optical fibre cables under fire conditions — Part 1‑2: Test for vertical
flame propagation for a single insulated wire or cable — Procedure for 1 kW pre‑mixed flame
IEC 60364-4-41:2005+AMD1:2 017, Low voltage electrical installations — Part 4‑41: Protection for safety —
Protection against electric shock
IEC 60364-6:2016, Low voltage electrical installations — Part 6: Verification
2)
IEC 60417:2002 , Database — Graphical symbols for use on equipment
IEC 60529:1989+AMD1: 1999+ AMD2: 2013, Degrees of protection provided by enclosures (IP Code)
IEC 60598-1:2024, Luminaires — Part 1: General requirements and tests
IEC 60617:2025, Database — Graphical symbols for diagrams
IEC 60664-1:2020, Insulation coordination for equipment within low-voltage systems — Part 1: Principles,
requirements and tests
IEC 60947-4-1:2023, Low‑voltage switchgear and controlgear — Part 4‑1: Contactors and motor‑starters —
Electromechanical contactors and motor-starters
IEC 60947-5-1:2024, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching
elements — Electromechanical control circuit devices
IEC 61310-3:2007, Safety of machinery - Indication, marking and actuation — Requirements for the location
and operation of actuators
IEC 61508-1:2010, Functional safety of electrical/electronic/programmable electronic safety‑related systems —
Part 1: General requirements
IEC 61800-5-2:2016, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements.
Functional
IEC 61810-1:2015+AMD1: 2019, Electromechanical elementary relays — Part 1: General requirements
IEC 61810-3:2015, Electromechanical elementary relays - Part 3: Relays with forcibly guided (mechanically
linked) contacts
EN 81-28:2022, Safety rules for the construction and installation of lifts — Lifts for the transport of persons and
goods — Part 28: Two-way communication system to contact a rescue service
EN 13411-3:2022, Terminations for steel wire ropes — Part 3: Safety. Ferrules and ferrule-securing
EN 13411-6:2004+A1: 2008, Terminations for steel wire ropes — Part 6: Safety. Asymmetric wedge socket
EN 13411-7:2021, Terminations for steel wire ropes — Part 7: Safety. Symmetric wedge socket
EN 13411-8:2011, Termination for steel wire ropes — Part 8: Safety. Swage terminals and swaging
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1: Classification
using data from reaction to fire tests
EN 13501-6:2018+A1: 2022, Fire classification of construction products and building elements —
Part 6: Classification using data from reaction to fire tests on electric cables
2) The graphical symbol collections of IEC 60417 can be previewed and purchased on the Online Browsing Platform
(OBP), www .iso .org/ obp
EN 50214:2024, Flat polyvinyl chloride sheathed flexible cables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
apron
smooth vertical part extending downwards from the sill of the landing or car entrance
3.2
automatic operation
operation in which start of the movement of the car happens in response to the momentary actuation of
operating devices or in response to any other automatic starting function
Note 1 to entry: See Annex E for additional information.
3.3
automatic rescue operation
device or function that operates automatically in case of failure or loss of power supply to move the lift car
to a landing
3.4
average probability of dangerous failure on demand
PFD
avg
mean unavailability of a E/E/PE safety-related system to perform the specified safety function when a
demand occurs from the lift or lift control system
[SOURCE: IEC 61508-4:2010, 3.6.18, modified — replaced "EUC or EUC control system" with "lift or lift
control system"; deleted Notes 1, 2 and 3]
3.5
average frequency of a dangerous failure per hour
PFH
average frequency of a dangerous failure of a E/E/PE safety-related system to perform the specified safety
function over a given period of time
[SOURCE: IEC 61508-4:2010, 3.6.19, modified — deleted Notes 1, 2, 3 and 4.]
3.6
balancing weight
mass which compensates all or part of the mass of the car
3.7
buffer
device with characteristics to dissipate or store kinetic energy
3.8
car
part of the lift which carries passengers and goods
3.9
carbon fibre reinforced polymer
CFRP
material consisting of carbon filaments and resin

3.10
counterweight
mass which compensates the mass of the car and a part of the rated load
3.11
direct acting lift
hydraulic lift where the ram or cylinder is directly attached to the car or the car sling
3.12
down direction valve
electrically controlled valve in a hydraulic circuit for controlling the descent of the car
3.13
drive control system
system controlling and monitoring the running of the lift machine
3.14
electrical anti-creep system
measure for hydraulic lifts against the danger of the car moving slowly away from the floor level
3.15
electric safety device
safety contact, safety circuit or SIL-rated circuit, having the required reliability of operation
3.16
electric safety chain
total of the electric safety devices
3.17
full load pressure
static pressure exerted on the piping, jack, valve block, etc., with the car and rated load being at rest at the
highest landing level
3.18
goods passenger lift
passenger lift with additional measures for the transport of goods
3.19
headroom
part of the well between the highest landing served by the car and the ceiling of the well
3.20
hold-to-run control device
control device which initiates and maintains machine functions only as long as the manual control (actuator)
is actuated
[SOURCE: ISO 12100:2010, 3.28.3]
3.21
hydraulic lift
lift in which movement of the car is operated by hydraulic fluid
3.22
indirect acting lift
hydraulic lift where the ram or cylinder is connected to the car or the car sling by suspension means
3.23
instantaneous safety gear
safety gear without limitation of retardation

3.24
jack
combination of a cylinder and a ram forming a hydraulic actuating unit
3.25
levelling
operation which achieves the stopping accuracy at a landing
3.26
levelling accuracy
vertical distance between car sill and landing sill
3.27
lift machine
unit which drives and stops the lift, including any motor, gear, machine brake, sheave/sprockets and drum
(traction or positive drive lift) or comprising the pump, pump motor and control valves (hydraulic drive lift)
3.28
machine room
fully enclosed machinery space outside of the well with ceiling, walls, floor and access door(s) in which
machinery as a whole or in parts is placed
3.29
machinery
control cabinet(s) and drive system, lift machine, main switch(es), and devices for emergency and test
operation
3.30
machinery space
volume(s) inside or outside of the well where the machinery as a whole or in parts is placed, including the
working areas associated with the machinery
3.31
machinery cabinet
fully enclosed volume outside of the well and machine room where the machinery as a whole or parts of it
are placed
Note 1 to entry: Related working area is located outside of the machinery cabinet.
3.32
maintenance
process of examination, lubrication, cleaning and adjustments of lift parts to ensure the safe and intended
functioning of the lift and its components after the completion of the installation and throughout its life
...