ISO 17842-2:2022
(Main)Safety of amusement rides and amusement devices — Part 2: Operation and use
Safety of amusement rides and amusement devices — Part 2: Operation and use
This document specifies the minimum requirements necessary to ensure the safe maintenance, operation, inspection and testing of amusement rides and amusement devices which are intended to be installed both repeatedly without degradation or loss of integrity, and temporarily or permanently in fairgrounds and amusement parks or any other locations, and is concerned with the installing, assembly and disassembly, operating, handling, maintaining, repairing, modifying and inspecting of amusement devices, and is addressed to controllers, operators, attendants and inspection bodies. The following are not covered by this document (this list is not exhaustive): — grandstands; — construction site installations; — scaffolding; — removable agricultural structures; — simple coin-operated children's amusement devices; — carrying up to three children, and recreational devices like waterslides or summer toboggan runs; — playground equipment; — rope courses; — climbing walls; — inflatable trampolines and swimming pool equipment.
Sécurité des manèges et des dispositifs de divertissement — Partie 2: Fonctionnement et utilisation
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 17842-2
Second edition
2022-04
Safety of amusement rides and
amusement devices —
Part 2:
Operation and use
Sécurité des manèges et des dispositifs de divertissement —
Partie 2: Fonctionnement et utilisation
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Operation, maintenance and use of amusement rides and amusement devices .5
4.1 General . 5
4.2 Standard documentation . . 5
4.3 Responsibilities of the controller . 6
4.3.1 General . 6
4.3.2 Selection and training of staff . 6
4.3.3 Assembly and disassembly . 7
4.3.4 Care of equipment . 9
4.3.5 Trial operations and checks .12
4.3.6 Operation .13
4.3.7 Duties for the supervision of the operation . 15
4.3.8 Servicing (maintenance, repair and modification) . 16
4.4 Duties of the amusement device operator . 17
4.4.1 General requirements . 18
4.4.2 Safe operation . 18
4.5 Duties of the attendant . 19
4.6 Independent inspection . 20
4.6.1 In-service inspection .20
4.6.2 Reports . 20
4.7 Emergency situations .20
4.7.1 General .20
4.7.2 Means of evacuation and escape . 20
4.7.3 Fire . 20
Annex A (informative) Training, qualification and experience for competent persons .23
Annex B (informative) Provisions prior to use .24
Bibliography .27
iii
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 documents 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).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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 254, Safety of amusement rides and
amusement devices.
This second edition cancels and replaces the first edition (ISO 17842-2:2015), which has been
technically revised.
The main changes are as follows:
— references to ISO/TS 17929 have been removed;
— the list of terms in Clause 3 has been updated;
— 4.2, Standard documentation has been updated;
— 4.3.3.3.1, General has been added;
— 4.3.4.1, General has been added;
— 4.3.4.4.3, Operating control equipment has been updated;
— 4.3.4.4.4, Control equipment operated by passengers has been updated;
— 4.3.5.2, Daily check and trial run has been updated;
— 4.3.6.1, During operating cycle has been updated;
— 4.3.8.3, Repairs has been updated;
— 4.3.8.4, Modification has been updated;
— 4.6.1.2, Inspection process and 4.6.2, Reports have been added;
— Table A.1 was updated;
iv
— Annex B has been added;
— Bibliography was updated.
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.
v
INTERNATIONAL STANDARD ISO 17842-2:2022(E)
Safety of amusement rides and amusement devices —
Part 2:
Operation and use
1 Scope
This document specifies the minimum requirements necessary to ensure the safe maintenance,
operation, inspection and testing of amusement rides and amusement devices which are intended to be
installed both repeatedly without degradation or loss of integrity, and temporarily or permanently in
fairgrounds and amusement parks or any other locations, and is concerned with the installing, assembly
and disassembly, operating, handling, maintaining, repairing, modifying and inspecting of amusement
devices, and is addressed to controllers, operators, attendants and inspection bodies.
The following are not covered by this document (this list is not exhaustive):
— grandstands;
— construction site installations;
— scaffolding;
— removable agricultural structures;
— simple coin-operated children's amusement devices;
— carrying up to three children, and recreational devices like waterslides or summer toboggan runs;
— playground equipment;
— rope courses;
— climbing walls;
— inflatable trampolines and swimming pool equipment.
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 2307, Fibre ropes — Determination of certain physical and mechanical properties
ISO 9554, Fibre ropes — General specifications
ISO 7165, Fire fighting — Portable fire extinguishers — Performance and construction
ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs
ISO/IEC 17020, Conformity assessment — Requirements for the operation of various types of bodies
performing inspection
ISO 17842-1, Safety of amusement rides and amusement devices — Design and manufacture
ISO 17842-3, Safety of amusement rides and amusement devices — Requirements for inspection during
design, manufacture, operation and use
IEC 60947-3, Low-voltage switchgear and controlgear — Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units
EN 12385, Steel wire ropes — Safety
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 17020, ISO 17842-1 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
amusement device
arrangement of equipment that produces the desired effect of amusement or entertainment when the
passenger moves through it or on it primarily by his or her own action, or any other system that is not
covered by the term amusement ride (3.3)
3.2
amusement device log
book and/or electronic data file containing all the necessary information about the use and history of
any amusement device (3.1)
3.3
amusement ride
device to entertain passengers (3.21) during motion, creating biomechanical effects on passengers
Note 1 to entry: In this document, the term “amusement device” is used to refer to an amusement device (3.1) or
amusement ride.
3.4
attendant
trained person appointed to work under the supervision of an operator (3.20), to assist in the operation
of an amusement device (3.1) available for use by the public.
3.5
barrier
device intended to prevent the user from falling and from passing beneath
3.6
competent person
person who can demonstrate that they have acquired through training, qualifications or experience, or
a combination of these, the knowledge and skills enabling them to perform a specified task
3.7
component
component which forms part of an assembly in which at least one component moves
Note 1 to entry: Excluding vibration and deformation.
3.8
controller
ride controller
person or organisation having overall control of an amusement device (3.1).
Note 1 to entry: This can be either an individual or corporate body owning an amusement device (3.1) or the
concessionaire or lessee who has been granted control of the amusement device, by the owner, for a specified
period.
3.9
designer
engineer
person or body responsible for the design of a device (or modifications thereof)
Note 1 to entry: The duties of designer include, but are not limited to, establishing and describing the configuration
of the amusement ride or device, conducting appropriate risk assessment(s), establishing strength (including
fatigue strength), designing and specifying electrical/electronic control systems, defining the acceptable quality
level for production, defining inspection criteria and including the provision of the necessary documentation
3.10
design review
document detailing the review of all the applicable design documents, to determine the suitability for
use of a device
3.11
design risk assessment
DRA
document produced by the designer (3.9) as a tool for a safe design within the agreed scope of supply
3.12
fence
structure designed to restrict or prevent movement across a boundary without changing elevation
3.13
gate
section of fence (3.12) or barrier (3.5) that can be opened to provide access or egress
3.14
guest
person who interacts with an amusement device
3.15
initial approval
design and calculation review, verification, examinations and tests executed by the inspecting body
before a device is first made available for public use
3.16
inspection body
organization capable of carrying out examination, tests and approval of amusement devices
3.17
manufacturer
individual or commercial entity who is responsible for manufacturing a product with the view to
placing it on the market under their own name
Note 1 to entry: Any commercial operator that either places a product on the market under their own name or
trademark or modifies a product in such a way that compliance with applicable requirements can be affected
should be considered the manufacturer and should assume the obligations of the manufacturer.
3.18
modification
safety-related alteration to the hardware or software of a device, including the introduction of a new
safety-related component or the substitution of a safety-related component, which results in a deviation
from the design specification
3.19
operation and use risk assessment
OURA
document, produced by the controller, that details all of the considered risks inherent during all modes
of amusement device operation and the means taken to mitigate against them
Note 1 to entry: See 5.1.2.2.
3.20
operator
trained person appointed by the controller (3.8) to be in charge of the operation of an amusement device
when it is available for the public
3.21
passenger
patron
person using an amusement device
3.22
passenger containment
components (e.g. seating, foot wells, handrails, passenger restraints) designed to prevent passengers
from moving outside a predetermined area on a ride either as a result of biomechanical effects, the ride
forces or the reasonably foreseeable behaviour of the passenger
3.23
passenger unit
PU
part or parts of an amusement ride in or on which the passengers (3.21) are intended to ride
3.24
permit
authorization to operate an amusement device in a particular member state granted by the legally
authorised body after successful approval and/or examination
3.25
platform
horizontal or inclined surface raised above the level of an adjacent area
Note 1 to entry: See ISO 17842-1:2015, 5.1.3.2 for maximum slope of platform.
3.26
repair
restoration of components or assemblies to a technically acceptable condition
Note 1 to entry: See also ISO 17842-3:2019, 4.3.8.3.
3.27
restraint
system, device, or characteristic that is intended to inhibit or restrict the body movement and/or
keep the body position to tolerate accelerations of the passenger(s) while on the amusement ride or
amusement device
Note 1 to entry: Position in which the restraint is intended to remain during the operation of the device in order
to restrain the passenger (3.21) is called closed restraint.
3.28
safety envelope
theoretical or actual physical space that can be encroached upon by any part of a passenger (3.22) of an
amusement ride during the ride cycle
3.29
safety-related component
component of an amusement device (3.1) on which the safety of the passengers (3.21) is dependent as
identified in the design risk assessment (3.11) and/or the operation and use risk assessment (3.19)
3.30
service
replacement or replenishment and check of conditions of components, including fluids which are
designated to be replaced or replenished or checked at specified intervals
3.31
spectator
person in the vicinity of an amusement device
Note 1 to entry: Typically defined as a person watching the operation of the amusement device or waiting to gain
access to the use the amusement device.
3.32
thorough examination
procedures and investigations necessary for the inspection body (3.16) to decide whether the
amusement device (3.1) can continue to be operated safely, or whether it requires defects to be remedied
immediately or within a specified time
3.33
trial run
proving run of an amusement device (3.1) during which no passengers (3.21) are carried
4 Operation, maintenance and use of amusement rides and amusement devices
4.1 General
This document is concerned with the installing, assembly and disassembly, operating, handling,
maintaining, repairing, modifying and inspecting of amusement devices, and is addressed to controllers,
operators, attendants and inspection bodies.
Recommendations for training, qualification and experience for competent people performing the
design, maintenance, repair and testing of amusement rides are given in Annex A.
Information on the provisions that are recommended prior to use of attractions and recommendations
on procedures to be followed are given in Annex B.
4.2 Standard documentation
The following documents shall be prepared for all amusement devices:
— operating manual (see ISO 17842-1:2015, 5.5.1.3) to include at least the following:
— maintenance instructions;
— NDT schedule;
— operating instruction;
— inspection instruction;
— inspection instruction;
— amusement device log (see ISO 17842-1:2015, Annex D), and
— official technical dossier or safety justification (see ISO 17841-1:2015, 5.8) including DRA and OURA
results for safe operation.
4.3 Responsibilities of the controller
4.3.1 General
The controller or nominated delegate(s) shall:
— ensure that the required documentation accompanies the amusement device when being bought,
sold or otherwise transferred or supplied;
— select and train operators and attendants;
— assemble, and disassemble safely;
— ensure safe operation in full conformance with manuals, taking into consideration current legislative
statutes which are effective in the country of installation of amusement ride or device;
— service, maintain, repair and modify safely;
— where required, ensure that only amusement rides or devices which have a valid operational permit
and are examined and tested by appropriate independent inspection bodies, are operated;
— maintain, keep available and update as required the operating manual and amusement ride or
amusement device log, as well as creating necessary reports;
— where operators do not have a clear view of all loading or unloading points, ensure that a clear
system of signals for checking with attendants that it is safe to start is devised. Ensure that every
person using the system is instructed on how to use it and that a copy of the signal code is displayed
in appropriate positions;
— ensure that emergency procedures are established, well-documented and regularly practiced; and
— provide full instructions on the control or communications system.
The ride controller can delegate any part of their duties, but remains responsible in law.
4.3.2 Selection and training of staff
Obtaining suitable and competent staff involves selection, training, testing of knowledge and
understanding, monitoring, auditing and keeping records. The controller shall select people able to put
the safety of the public first, likely to follow procedures conscientiously and having the maturity and
authority to give confidence to the public.
Adequate training shall be provided to all employees and training records kept. Training shall be
appropriate to the risks and given in a way that those being trained can understand.
The operator and attendants of amusement devices shall demonstrate competency in the operation of
amusement devices according to the manual(s).
No operators or attendants of the amusement device shall be younger than required by national
standards or law in the country of use.
Operators and attendants depending on their duties, shall be provided with suitable and sufficient
information and training in the working of their amusement devices, covering the following:
— systems of work for safe operation, including speed limits and any other specific safety measures;
— procedures for reporting breakdown, defects or unusual occurrences;
— loading and unloading procedures;
— passenger restrictions such as height and weight limits, medical conditions and limited accessibility
(guest behaviour);
— control of waiting and viewing areas;
— use and operation of passenger containment and passenger restraint systems including the checking
of restraint closure;
— controlled/emergency stop procedures;
— emergency procedures, including passenger evacuation.
4.3.3 Assembly and disassembly
4.3.3.1 Siting of amusement devices
4.3.3.1.1 General
Amusement devices shall be sited and assembled in accordance with manufacturer’s instructions,
taking into account applicable national requirements.
4.3.3.1.2 Standard conditions for the siting of amusement rides and amusement devices
The ride controller or their representative shall ensure that an amusement device is only sited on
ground which is suitable for this purpose in accordance with the manual(s). For example ensure that
the ground
— can safely bear the load of the amusement device. For existing structures (e.g. buildings or piers) a
detailed inspection and calculation shall be carried out in order to establish permissible loads;
— is sufficiently flat, even and stable for the attraction to be assembled and used on safely, in accordance
with the amusement device log and manual;
— provides discharge or drainage of rain water.
The ground shall be checked at regular intervals after assembly, to confirm that there is no deterioration
in its load bearing capacity, especially during adverse weather conditions.
The controller shall establish the position of underground services or overhead lines which can present
hazards during the assembly or operation of the amusement device, taking advice as necessary from
the appropriate authority. Where these could be a source of danger to persons employed or to members
of the public, all reasonably practicable precautions shall be taken to prevent such danger, either by the
provision of adequate and suitably placed barriers or otherwise.
Care shall be taken to ensure that underground services are not struck when poles or pegs are placed in
the ground or when excavation is undertaken. Service location techniques shall be employed before any
such work is commenced, unless it has been confirmed beforehand that there are no services present.
NOTE There can be local regulations that define the minimum distance between amusement devices and
other structures, objects, services, etc.
When positioning amusement devices, controllers shall apply the following principles:
a) The proximity to other fixed or mobile structures or services shall be in accordance with
ISO 17842-1.
b) There shall be sufficient clearance between adjacent amusement devices, buildings or other
occupied areas to minimize the risk of fire spread.
c) Consideration shall be given to any possibility of uplift caused by wind.
d) Amusement devices shall be arranged so that the public have safe access to each amusement
device entrance, and safe egress at exit points, so that there are no bottlenecks which could cause
overcrowding in an emergency.
e) Sufficient clearance shall be provided between and above amusement devices on main access
routes, so as to provide access for emergency service vehicles, and provide access to fixed fire
hydrants even when the public is being evacuated.
f) Where rides cross over or pass through each other, as a minimum the clearance envelopes for each
ride shall apply as stated in ISO 17842-1. The controllers shall ensure that safety envelopes for both
passengers and spectators are not compromised. For coin-operated children's rides, spacing can
vary providing the safety envelopes are not thereby compromised.
g) The OURA needs to consider whether protection is required to prevent falling objects from hitting
passengers or spectators.
NOTE National regulations can exist that define the minimum distance amusement rides and amusement
devices from other structures, objects, services, etc.
4.3.3.2 Transportation, assembly and disassembly
When amusement devices are transported, assembled or disassembled on site the devices shall be
under the direct supervision of the controller and/or competent delegate(s).
4.3.3.3 Ground packing, stability and anchors
4.3.3.3.1 General
All necessary measures shall be taken during assembly to ensure that the amusement device will be
stable when in use.
No amusement device shall be assembled on sloping or uneven ground, unless suitable packing has
been incorporated which allows the amusement device to be used safely.
The amusement device shall be level where necessary and have its load adequately distributed and
firmly supported. Its stability shall be checked frequently.
The number of packing pieces used shall be kept to a minimum. The height of the packing material shall
be kept to a minimum and the packing itself shall be stable.
All packing materials incorporated shall be sound and suitable for the purpose, chosen and located in
accordance with the manual(s), so as to prevent slipping and sinking, or dislodgement.
Packing shall be placed directly beneath the support points of the amusement device. If this cannot be
achieved a suitable supporting structure shall be formed which effectively transmits the load of the
amusement device safely through the packing to the ground. Dynamic loads can lead to the loosening of
packing and anchorage; consequently, repeated checks of the packing and anchors are essential.
If an attraction is equipped with props to support the structure, these props shall be used in accordance
with the manufacturer's instructions.
Hydraulic jacks shall not be used to support a ride during operation, unless they are designed and
approved for the purpose.
4.3.3.3.2 Public safety
Members of the public shall not be admitted into areas where an amusement device is being assembled
or disassembled.
The controller and/or competent delegate(s) shall, where necessary, provide means to prevent members
of the public entering work areas e.g. with fences and/or warnings.
4.3.3.3.3 Working method
A safe system of work, which as a minimum takes into account the manufacturer’s manual(s) shall be
followed during these operations. Controllers shall be aware of the official requirements of local and
national authorities.
Amusement devices shall be moved so as to minimize the risk of damage to safety-related components
and all loads shall be properly secured during transit.
Where there is a risk of temporary instability or overstress in the device during assembly or dismantling,
the precautions specified by the designer, manufacturer, and/or supplier, shall be followed. This can
require e.g. the use of temporary guys, stays, supports and fixings to prevent danger through collapse
of any part of the amusement device.
Temporary provisions for access and working during assembly and disassembly operations shall be safe
including sufficient and suitable lighting to allow work to be conducted in a safe and proper manner.
Unauthorized access shall be prevented through openings in platforms and through any gaps within
the amusement device, which are only intended for access when the amusement device is not in motion
or use. Such openings or gaps shall be provided with covers, be securely fixed in position or equipped
with barriers and access doors, which are securely fastened.
Before reassembly, all components as specified in the manual(s) shall be cleaned, carefully examined
for signs of wear, deformation or other damage, confirming fitness for purpose or otherwise repaired
or replaced. They shall be properly lubricated in accordance with the manual(s). Replacements and
repairs of safety related components shall be noted in the amusement device log.
Fastening and securing components shall be used in accordance with manufacturer's instructions and
correctly adjusted, or replaced if necessary.
Upon completion of assembly, all components that are important to the safety of the amusement device,
shall be checked to ensure that they have been properly installed in accordance with the manufacturer’s
manual(s).
All structural members needed to ensure the stability and safety of an amusement device shall be used
and correctly fitted. Where it is a design requirement, the whole assembly shall be securely anchored to
ensure that it is stable.
Where rail tracks form part of the amusement device, they shall be properly laid and aligned, according
to the manual(s).
4.3.4 Care of equipment
4.3.4.1 General
All equipment shall be maintained in accordance with manufacturer’s manual(s) and/or general
engineering practices, including taking into consideration the requirements of national documents.
4.3.4.2 Mechanical equipment
At the intervals as stated in the manual(s), safety related components shall be checked to ensure that
they are within the limits stated in the manual. Parts requiring replacement shall be consistent with
the design specification.
Controllers shall have procedures to ensure that safety-related components are:
— individually identifiable according to design and quality;
— traceable as per the location(s) on the amusement device;
— not interchangeable such that parts cannot be used in incorrect positions – for example, two pins
can look identical but have different material properties;
— stored so as to prevent deterioration and contamination;
— cleaned and lubricated as required by the manual before being incorporated into the amusement
device;
— carefully assembled so that they are not damaged, in particular:
1) assembled using fastenings and fixings correctly used and adjusted, in accordance with the
manual(s);
2) all pins shall be provided with their secondary retention system (such as safety locknuts and
washers, split pins or castellated nuts with split pins, etc.) as defined in the manual(s). Split-
pins shall be spread effectively;
3) “R” clips shall be of the right size, in good condition, of the right material, and fitted correctly;
4) self-locking nuts shall not be used more than the maximum number of times specified in the
manual(s);
5) close attention shall be paid to bolted joints by using tightening torques, dimensions and
classes of bolt in accordance with the requirements of the manual(s); torque wrenches shall be
used as required;
6) components having a specified operational life shall be checked to verify their operational life
is not expired, checked in accordance with manual(s) and replaced when necessary.
If there is repeated, unexpected or unusual damage to safety related components, the manufacturer or
designer and the inspection body shall be informed and advice of these parties sought.
When lifting equipment is used for the assembly of components, the manufacturer's instructions shall
be followed so as not to adopt unsuitable lifting methods which might cause damage and subsequent
danger during operation.
Steel wire ropes for erection and dismantling shall be used in accordance with EN 12385
Synthetic fibre ropes for erection and dismantling shall be used in accordance with ISO 2307 and/or
ISO 9554.
NOTE Lifting equipment, whether integral to the amusement device or not, and depending on their function,
can be subject to specific local regulations, including inspection and testing.
4.3.4.3 Hydraulic and pneumatic equipment
The controller shall ensure that pressure systems are operating within the limits set in the manual(s)
as supplied by the manufacturer.
The pressure system shall also be examined in accordance with the written scheme of inspection.
Leakage shall be kept to a minimum, contained where possible and not create risks. For further
information, refer to ISO 4413 and ISO 4414.
Equipment subject to conformance to the Pressure Equipment Directive or taking into consideration
other nationally applicable legislation should meet those requirements. Conformance with EN 13445
series can be used to demonstrate conformance with the Pressure Equipment Directive.
4.3.4.4 Electrical equipment
4.3.4.4.1 Isolation and access
All electrical cabinets or enclosures shall be properly locked to prevent unauthorized access.
Amusement devices shall be provided with means to disconnect (isolate) the supply to all live conductors
and shall have a means permitting it to be locked in the off (isolated) position (e.g. by padlocks). Suitable
means of disconnection are listed in IEC 60204-1.
When used for achieving isolation, the disconnecting device shall have a means permitting it to be
locked in the off (isolated) position (e.g. by padlocks).
Devices used for isolation shall have a visible gap or a position indicator that conforms with IEC 60947-3.
4.3.4.4.2 Inspection
All electrical equipment shall be inspected and tested in accordance with ISO 17842-3.
4.3.4.4.3 Operating control equipment
All operating controls shall be:
a) clearly visible to the operator,
b) easily distinguishable from each other,
c) readily accessible to the operator,
d) easy to operate,
e) clearly marked to show the function and mode of operation. All markings shall be permanent and
readable.
Written markings shall be in a suitable language(s).
The operator's working position shall
— be safe (and have safe access),
— be designed with ergonomic considerations,
— have adequate lighting,
— give, where possible, an unobstructed view of all areas of operation. If it is not the case, other means
of surveillance shall be implemented (e.g. mirrors, surveillance cameras),
— take into account environmental aspects e.g. temperature, vibration and noise.
The design shall take account of any need for the operator and operators to communicate, between
themselves and where necessary with the public, e.g.:
— visibly,
— by phone/intercom,
— public address,
— through the ride control system (such as 2-button operating systems).
4.3.4.4.4 Control equipment operated by passengers
Control equipment intended to be operated by passengers shall:
— be clearly marked, in a language agreed with the controller, to show their functions;
— be accessible to all passengers within the designated size limits;
— not present a risk to passengers through their positioning or use;
— not be foreseeably capable of causing injury to passengers either directly (e.g. by trapping hands
or fingers, electric shock, etc.) or by causing any controlled device to malfunction or operate
inappropriately;
— only be operable by passengers when it is safe for them to do so;
— never override an operator selected control input where it would be unsafe to do so; and
— be able to be muted or over-ridden by the operator if necessary.
Control equipment located in public areas and accessible to the general public should be tamper-proof
where necessary to prevent misuse.
The OURA shall take into account the risks related to anticipated failure of control equipment or misuse
as well as the possibility of operator error shall not cause significant risk from such events.
Where an amusement ride or amusement device has remote areas or areas obscured from the view of
the operator, means of observing and communicating with passengers, as required by risk assessment,
shall be provided at the control station.
NOTE Assisted views can be provided by means such as the use of closed-circuit television, mirrors or
additional operators.
4.3.5 Trial operations and checks
4.3.5.1 Putting into use after assembly
After assembly, the controller shall ensure that the amusement device is checked by a competent person
to ensure the assembly is in accordance with the manufacturer’s manual(s).
A similar check routine shall be carried out where an amusement device has been idle for a long period,
after it has been partially dismantled and re-erected.
The controller shall perform one or more trial runs without any member of the public according to the
manufacturer’s manual(s), simulating where possible emergency situations to verify particularly that
control systems, emergency stops, safety equipment and emergency equipment work properly.
The controller shall retain a record of the checks carried out in the amusement device log.
Devices not open to the public shall be secured and/or immobilized and steps shall be taken to prevent
public access.
The operating manual shall be available for the operator at the amusement device.
The controller shall ensure a safe system of work is in place and provide means for “locking-off” to
ensure the element of the amusement device cannot move inadvertently before all members of staff are
in a safe position.
4.3.5.2 Daily check and trial run
The controller shall ensure that each amusement device has a daily check before the public uses it.
For an amusement device the results of the daily check shall be in writing and retained for at least
12 months.
The daily check shall:
— take account of any instructions from designers, manufacturers, importers, suppliers and inspection
bodies;
— list all parts and other matters which need daily checking to ensure safety and describe how they
are to be checked,
— include, where appropriate, details of the extent of acceptable variations, e.g. out-of-level, air
pressures, torque settings, wear,
— check that safety controls, brakes and other safety devices, including communication systems,
operate effectively (these should be done daily unless it can be shown that a longer periodic
inspection is appropriate),
— include checks to make sure that barriers, guards, walkways etc. are in place and in good condition,
and that all locking devices and securing pins are in place and in good condition,
— ensure that cabinets, boxes, enclosures etc. containing hazardous equipment and/or substances are
suitably secured, and
— for an amusement device, where appropriate, require at least one complete operating cycle.
The controller shall ensure the person(s) completing the daily check are competent and records of any
relevant training provided are retained.
Only if all checks and trial runs are satisfactory can the amusement device be made available to the
public.
4.3.6 Operation
4.3.6.1 During operating cycle
Any amusement ride or amusement device, except one specifically designed for unattended use, shall
be under supervision (whether by direct or indirect means) at all times when the ride is in use.
The operator shall be capable of working the amusement device competently in a safe manner with due
regard for passenger, public and staff safety and shall be in control throughout the operating cycle. The
number of attendants required to operate it safely shall be on duty. An operator shall not be in charge
of more than one amusement ride or amusement device in operation at any one time unless the OURA
determines it is safe to do so (e.g. for some simple amusement devices).
The amusement device shall only be used within the limitations (including weather conditions) specified
in the manual(s) and registered in the amusement device log (such as specified in an independent
inspection body's report). If the wind loads have been integrated in accordance with ISO 17842-1:2022
1)
4.3.3.4.2 , the amusement device shall be taken out of operation if the 10 min average speed is greater
than 15 m/s or the gust speed (3 s gust) is greater than 21 m/s, measured at a height of 10 m, unless
more specific values have been provided by a designer.
Particular attention shall be given to the extreme conditions which can be caused by gusting winds
and the increased wind forces that can be created by the funnelling effect of adjacent structures. If
required, appropriate wind measuring devices shall be used.
1) Under preparation. Stage at the time of publication: ISO/DIS 17842-1:2022.
The operator shall also apply any further protective procedures against exceptional winds as defined
by the designer.
Where fares need to be taken on amusement rides during operation, this shall be considered in the
OURA.
4.3.6.2 Supervision of public
Reasonable steps, including stopping the amusement device if necessary, shall be taken to prevent
passengers intentionally misusing equipment provided for their safety, behaving recklessly, or
disregarding clear and reasonable instruction
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