EN ISO 14122-4:2016
(Main)Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4:2016)
Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4:2016)
ISO 14122-4:2016 gives requirements for fixed ladders which are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and movable parts of fixed ladder systems.
NOTE 1 "Fixed" means of access are those mounted in such a manner (for example, by screws, nuts, welding) that they can only be removed by the use of tools.
ISO 14122-4:2016 specifies minimum requirements that also apply when the same means of access is required as the part of the building or civil construction (e.g. fixed ladders) where the machine is installed, on condition that the main function of that part of the construction is to provide a means of access to the machine.
NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of access which are outside the scope of the standard.
It is intended that this part of ISO 14122 be used with ISO 14122‑1 to give the requirements for fixed ladder systems.
The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed means of access are necessary. It is not applicable to powered means of access such as lifts, escalators, or other devices specially designed to lift persons between two levels.
ISO 14122-4:2016 is not applicable to machinery manufactured before the date of its publication.
Sicherheit von Maschinen - Ortsfeste Zugänge zu maschinellen Anlagen - Teil 4: Ortsfeste Steigleitern (ISO 14122-4:2016)
Diese Internationale Norm gilt für stationäre Maschinen, für die ortsfeste Zugänge erforderlich sind.
Dieser Teil von ISO 14122 gilt für ortsfeste Steigleitern, die Teil einer Maschine sind.
ISO 14122 kann auch für Zugänge angewendet werden, die Teil des Gebäudes sind (z. B. Arbeitsbühnen, Laufstege, Steigleitern) in dem die Maschine aufgestellt ist, wobei die Hauptfunktion dieses Gebäudeteils darin besteht, den Zugang zu der Maschine zu ermöglichen.
ANMERKUNG 1 Falls keine nationale Norm oder Vorschrift anwendbar ist, darf diese Norm auch für Zugänge angewendet werden, die außerhalb des Anwendungsbereiches dieser Norm sind.
Diese Internationale Norm gilt auch für verstellbare Bauteile (z. B. klappbare oder verschiebbare) ohne Antrieb und für die beweglichen Teile ortsfester Zugänge.
Diese Internationale Norm gilt nicht für Maschinen, die vor ihrem Erscheinungsdatum hergestellt wurden.
ANMERKUNG 2 Für mobile Maschinen können aufgrund ihrer Abmessungen und speziellen Nutzungsbedingungen besondere Anforderungen angewendet werden, die von dieser Norm abweichen. Daher besteht die Absicht, eine Norm für mobile Maschinen zu entwickeln, von der geländegängige mobile Maschinen ausgenommen sind. Für Zugänge zu geländegängigen mobilen Maschinen, wie z. B. Erdbaumaschinen, siehe ISO 2867 und für Landmaschinen siehe ISO 4254-1.
Sécurité des machines - Moyens d'accès permanents aux machines - Partie 4: Échelles fixes (ISO 14122-4:2016)
ISO 14122-4:2016 donne les exigences pour les échelles fixes qui font partie intégrante d'une machine fixe et aux parties réglables non-motorisées (par exemple pliables, coulissantes) ainsi qu'aux parties mobiles de ces systèmes d'échelles fixes.
NOTE 1 Les moyens d'accès «fixes» sont ceux montés de telle manière (par exemple par boulonnage, par soudage) qu'ils ne puissent être démontés qu'à l'aide d'outils.
ISO 14122-4:2016 spécifie les exigences minimales s'appliquant également aux moyens d'accès fixes aux parties du bâtiment ou de la construction civile (par exemple échelles fixes) où la machine est installée, à condition que la fonction principale de cette partie de la construction soit de donner accès à la machine.
NOTE 2 Lorsqu'aucune norme nationale ou réglementation n'existe, la présente partie de l'ISO 14122 peut être utilisée pour les moyens d'accès en dehors de son domaine d'application.
Il est prévu que la présente partie de l'ISO 14122 soit utilisée conjointement avec l'ISO 14122‑1 pour donner les exigences relatives aux systèmes d'échelles fixes.
L'ensemble de la série ISO 14122 est applicable aux machines fixes et mobiles pour lesquelles des moyens d'accès fixes sont nécessaires. Cette série n'est pas applicable aux moyens d'accès motorisés tels que les ascenseurs, les escalators, ou d'autres dispositifs conçus spécialement pour soulever des personnes entre deux niveaux.
ISO 14122-4:2016 n'est pas applicable aux machines fabriquées avant sa date de publication.
Varnost strojev - Stalni dostopi do strojev - 4. del: Fiksne lestve (ISO 14122-4:2016)
Ta del standarda ISO 14122 določa zahteve za fiksne lestve, ki so del stacionarnega stroja, in za prilagodljive dele brez pogona (npr. zložljive, drsne) ter premične dele sistemov fiksnih lestev.
OPOMBA 1: »Fiksni« načini dostopa so tisti, ki so nameščeni na tak način (na primer z vijaki, maticami, privarjeni), da jih je mogoče odstraniti samo z orodjem.
Ta del standarda ISO 14122 določa minimalne zahteve, ki veljajo tudi, kadar je enak način dostopa zahtevan kot del objekta ali nizke gradnje (npr. fiksne lestve), če je stroj vgrajen, pod pogojem, da je glavna funkcija tega dela konstrukcije zagotoviti način dostopa do stroja.
OPOMBA 2: Če ni lokalnih predpisov ali standardov, se lahko ta del standarda ISO 14122 uporabi tudi za načine dostopa, ki so zunaj področja uporabe tega standarda.
Ta del standarda ISO 14122 je namenjen za uporabo s standardom ISO 14122-1 za določanje zahtev za sisteme fiksnih
lestev. Skupina standardov ISO 14122 se kot celota uporablja za stacionarne in mobilne stroje, kjer je potreben fiksni način dostopa. Ne uporablja se za načine dostopa s pogonom, kot so dvigala, tekoče stopnice ali druge naprave, posebej zasnovane za dviganje oseb med dvema ravnema.
Ta del standarda ISO 14122 se ne uporablja za stroje, izdelane pred datumom njegove objave.
General Information
Relations
Overview
EN ISO 14122-4:2016 - Safety of machinery: Permanent means of access to machinery - Part 4: Fixed ladders specifies minimum safety requirements for fixed ladders that form part of stationary machinery, including non‑powered adjustable (e.g. foldable, slidable) and movable parts of fixed ladder systems. “Fixed” means access mounted so it can only be removed using tools. The standard is intended to be used together with ISO 14122‑1 and the wider ISO 14122 series and supports conformity with EU Machinery Directive 2006/42/EC where applicable.
Key topics and technical requirements
- Scope and application: Applies to fixed ladders used as means of access to machinery and, where the primary function is machine access, to similar building-installed ladders. Not applicable to powered access (lifts, escalators) or to machinery manufactured before publication.
- Selection and design: Guidance on choosing ladder types based on space, expected use and interaction with obstacles; includes treatment of non‑powered adjustable or movable ladder parts.
- Fall protection: When fall protection is required; acceptable types (safety cages, fall arresters) and guidance for risk assessment. Special treatment for ladder systems above certain heights (e.g., >3 000 mm up to ≤10 000 mm, and >10 000 mm).
- Platforms and landings: Requirements for arrival/departure platforms, intermediate and rest platforms, and access openings/trap doors.
- Ladder configurations: Specific requirements for ladders with two stiles and for single‑stile ladders covering strength, rung design, and connections to guards.
- Loads and structural design: Consideration of permanent (dead) loads, variable (rated) loads and additional loads; design and verification of stability.
- Verification and testing: Methods for verifying strength and stability by calculation and testing, including tests for ladder elements and safety cages.
- Information for use: Requirements for instruction handbooks and user information needed for safe installation, inspection and maintenance.
Practical applications and users
EN ISO 14122-4:2016 is used by:
- Machine designers and OEMs specifying integrated fixed ladders
- Plant engineers, safety managers and maintenance teams assessing access safety
- Installers and fabricators of fixed ladder systems and safety cages
- Compliance officers and auditors demonstrating conformity with safety legislation (e.g., Machinery Directive)
- Procurement specialists specifying safe access equipment
Typical applications include industrial plants, processing machinery, machine enclosures and any stationary or movable machinery requiring permanent, non‑powered access.
Related standards
- ISO 14122-1 (general requirements for permanent means of access) - intended to be used together with Part 4
- ISO 14122 series (overall framework for permanent means of access)
- EU Machinery Directive 2006/42/EC - Annex ZA links this standard to essential requirements for conformity
Keywords: EN ISO 14122-4:2016, fixed ladders, safety of machinery, permanent means of access, fall protection, safety cage, ladder design, ISO 14122.
Related Packages
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2016
1DGRPHãþD
SIST EN ISO 14122-4:2005
SIST EN ISO 14122-4:2005/A1:2010
Varnost strojev - Stalni dostopi do strojev - 4. del: Fiksne lestve (ISO 14122-4:2016)
Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders
(ISO 14122-4:2016)
Sicherheit von Maschinen - Ortsfeste Zugänge zu maschinellen Anlagen - Teil 4:
Ortsfeste Steigleitern (ISO 14122-4:2016)
Sécurité des machines - Moyens d'accès permanents aux machines - Partie 4: Échelles
fixes (ISO 14122-4:2016)
Ta slovenski standard je istoveten z: EN ISO 14122-4:2016
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
13.110 Varnost strojev Safety of machinery
97.145 Lestve Ladders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 14122-4
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 13.110 Supersedes EN ISO 14122-4:2004
English Version
Safety of machinery - Permanent means of access to
machinery - Part 4: Fixed ladders (ISO 14122-4:2016)
Sécurité des machines - Moyens d'accès permanents Sicherheit von Maschinen - Ortsfeste Zugänge zu
aux machines - Partie 4: Échelles fixes (ISO 14122- maschinellen Anlagen - Teil 4: Ortsfeste Steigleiter (ISO
4:2016) 14122-4:2016)
This European Standard was approved by CEN on 29 April 2016.
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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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 CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14122-4:2016 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC machinery, and amending
Directive 95/16/EC (recast) [2006 L157] aimed to be covered. 4
European foreword
This document (EN ISO 14122-4:2016) has been prepared by Technical Committee ISO/TC 199 “Safety
of machinery” in collaboration with Technical Committee CEN/TC 114 “Safety of machinery” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2016, and conflicting national standards
shall be withdrawn at the latest by December 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 14122-4:2004.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 14122-4:2016 has been approved by CEN as EN ISO 14122-4:2016 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC machinery, and amending
Directive 95/16/EC (recast) [2006 L157] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/396 to
provide one voluntary means of conforming to essential requirements of Directive 2006/42/EC of the
European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive
95/16/EC (recast) [2006 L157].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and
Directive 2006/42/EC [2006 L157]
Essential Requirements of Clause(s) / subclause(s)
Remarks / Notes
Directive 2006/42/EC of this EN
1.5.15 “Risks of slipping, tripping All
or falling”
1.6.2 “Access to operating All
position and service points”
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IMPORTANT: Compliance with the requirements of EN ISO 14122-1 and a relevant access-specific
part of EN ISO 14122 is necessary to achieve presumption of conformity.
INTERNATIONAL ISO
STANDARD 14122-4
Second edition
2016-06-01
Safety of machinery — Permanent
means of access to machinery —
Part 4:
Fixed ladders
Sécurité des machines — Moyens d’accès permanents aux
machines —
Partie 4: Échelles fixes
Reference number
ISO 14122-4:2016(E)
©
ISO 2016
ISO 14122-4:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Selection and design of ladder systems . 6
4.1 General . 6
4.1.1 Design and construction . 6
4.1.2 Choice depending on available space . 6
4.1.3 Spacing between the ladder and any permanent obstruction . 6
4.2 Choice of a type fall protection device . 7
4.2.1 Necessity of a fall protection device . 7
4.2.2 Types of fall protection devices . 7
4.2.3 Guidance for a risk assessment . 8
4.3 Height of ladder flights and fall protection device . 8
4.3.1 Limits of space . 8
4.3.2 Ladder systems >3 000 mm and ≤10 000 mm total height, H.8
4.3.3 Ladder systems >10 000 mm total height, H .9
4.4 Platforms and landings . 9
4.4.1 Installation of platforms at arrival and departure areas . 9
4.4.2 Arrangement of platforms and landings for ladders with a total height, H
>10 000 mm . 9
5 Specific requirements of ladder systems .10
5.1 General requirements .10
5.1.1 Permanent action (dead load) .10
5.1.2 Variable action (rated load) .11
5.1.3 Additional loading .13
5.1.4 Design .14
5.2 Ladder with two stiles .14
5.2.1 Strength .14
5.2.2 Rungs .14
5.2.3 Connection of ladder and guard-rail .17
5.3 Ladder with one stile .17
5.3.1 Strength .17
5.3.2 Rungs .18
5.4 Departure and arrival areas .19
5.4.1 General requirements .19
5.4.2 Departure area (entrance) .19
5.4.3 Arrival area (exit) .19
5.4.4 Access opening .19
5.4.5 Trap doors .21
5.5 Fall protection device .22
5.5.1 Safety cage .22
5.5.2 Fall arrester .26
5.6 Platforms and landings .26
5.6.1 Access platforms .26
5.6.2 Intermediate and rest platforms .26
5.6.3 Intermediate landings .27
5.6.4 Moveable rest landings . .29
5.7 Requirements on moveable parts of fixed ladders .30
6 Verification of safety requirements .30
6.1 General .30
ISO 14122-4:2016(E)
6.1.1 General requirements .30
6.1.2 Verification of stability by calculation .31
6.1.3 Verification of stability by testing .31
6.2 Tests of fixed ladders with two stiles .31
6.2.1 Strength and bending of a ladder element .31
6.2.2 Test for safety cage .32
6.3 Test of ladders with one stile .33
6.3.1 Test of ladder elements .33
6.4 Test of extensions of guard-rails .35
7 Information for use for fixed ladders .36
7.1 Instruction handbook .36
7.1.1 General.36
7.1.2 Ladder systems with fall arrester .36
7.2 Marking of ladder systems with fall arrester .37
Annex A (normative) Requirements for the design of anti-climb devices .38
Annex B (informative) Summary of main dimensions of a fixed ladder equipped with a
safety cage .42
Annex C (informative) Significant technical changes between this part of ISO 14122 and the
previous edition .44
Bibliography .47
iv © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 199, Safety of machinery.
This second edition cancels and replaces the first edition (ISO 14122-4:2004), which has been
technically revised. It also incorporates the Amendment ISO 14122-4:2004/Amd 1:2010.
ISO 14122 consists of the following parts, under the general title Safety of machinery — Permanent
means of access to machinery:
— Part 1: Choice of fixed means and general requirements of access
— Part 2: Working platforms and walkways
— Part 3: Stairs, stepladders and guard-rails
— Part 4: Fixed ladders
An additional part, dealing with mobile machinery, is under preparation.
ISO 14122-4:2016(E)
Introduction
This International Standard is a type-B standard as stated in ISO 12100.
This International Standard 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 International
Standard by the above-mentioned stakeholder groups:
— machine users/employers (small, medium, and large enterprises);
— machine users/employees (e.g. trade unions, organizations for peoples 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 at the drafting
process of this International Standard.
In addition, this International Standard is intended for standardization bodies elaborating type-C
standards.
The requirements of this International Standard can be supplemented or modified by a type-C standard.
For machines which are covered by the scope of a type-C standard and which have been designed and
built according to the requirements of that standard, the requirements of that type-C standard take
precedence.
The purpose of this International Standard is to define the general requirements for safe access to
machines. ISO 14122-1 gives guidance about the correct choice of access means when the necessary
access to the machine is not possible directly from the ground level or from a floor or platform.
The dimensions specified are consistent with established ergonomic data given in ISO 15534-3.
vi © ISO 2016 – All rights reserved
INTERNATIONAL STANDARD ISO 14122-4:2016(E)
Safety of machinery — Permanent means of access to
machinery —
Part 4:
Fixed ladders
1 Scope
This part of ISO 14122 gives requirements for fixed ladders which are a part of a stationary machine,
and to the non-powered adjustable parts (e.g. foldable, slidable) and movable parts of fixed ladder
systems.
NOTE 1 “Fixed” means of access are those mounted in such a manner (for example, by screws, nuts, welding)
that they can only be removed by the use of tools.
This part of ISO 14122 specifies minimum requirements that also apply when the same means of access
is required as the part of the building or civil construction (e.g. fixed ladders) where the machine is
installed, on condition that the main function of that part of the construction is to provide a means of
access to the machine.
NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of
access which are outside the scope of the standard.
It is intended that this part of ISO 14122 be used with ISO 14122-1 to give the requirements for fixed
ladder systems.
The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed
means of access are necessary. It is not applicable to powered means of access such as lifts, escalators,
or other devices specially designed to lift persons between two levels.
This part of ISO 14122 is not applicable to machinery manufactured before the date of its publication.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 14122-1:2016, Safety of machinery — Permanent means of access to machinery — Part 1: Choice of
fixed means and general requirements of access
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
EN 353-1:2014, Personal protective equipment against falls from a height — Part 1: Guided type fall
arresters including a rigid anchor line
EN 795, Personal fall protection equipment — Anchor devices
ISO 14122-4:2016(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100, ISO 14122-1, and the
following apply.
3.1
fixed ladder system
ladder system
fixed ladder
installation of at least one ladder flight (3.4), fall protection (3.7), where appropriate, as well as landing(s)
and/or platform(s)
Note 1 to entry: In the following text, the abbreviation “ladder” and “ladder flight” is used for fixed ladders and
fixed ladder flights, respectively.
3.2
ladder with two stiles
ladder, according to ISO 14122-1:2016, 3.1, which is stationary and where the rungs are arranged
between and attached to the stiles
Note 1 to entry: The stiles carry the load (see Figure 1).
Figure 1 — Ladder with two stiles
3.3
ladder with one stile
ladder, according to ISO 14122-1:2016, 3.1, which is stationary and where the rungs are attached to
both sides of the stile
Note 1 to entry: The stile carries the load alone (see Figure 2).
2 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
Figure 2 — Ladder with one stile
3.4
ladder flight
continuous part of the fixed ladder (3.1)
— between the departure area (3.8) and arrival area (3.9), in the case of ladders without platforms, or
— between the departure area (3.8) or arrival area (3.9) and the nearest platform, or
— sequentially between landings or rest platforms (3.12)
Note 1 to entry: See Figures 3a and 3b.
3.5
climbing height of ladder system
total height
H
vertical distance between the departure area on the ground and the arrival area (3.9) at the top of a
ladder system (3.1)
Note 1 to entry: See Figure 3 a).
Note 2 to entry: In case of staggered ladder flights (3.4), the vertical distance between departure area (3.8) of the
first flight and the arrival area at the top of the last flight.
3.6
height of ladder flight
h
vertical distance of each staggered ladder flight (3.4)
Note 1 to entry: See Figure 3 b).
ISO 14122-4:2016(E)
a) Single ladder flight b) Staggered ladder flights
Key
1 departure area
2 arrival area
H climbing height of ladder system (total height)
3 intermediate platform or intermediate landing
4 ladder flight
h height of ladder flight
Figure 3 — Height of flights and location of intermediate platforms/landings
3.7
fall protection
technical measure to prevent or to minimize the risk of people falling from ladders
3.7.1
safety cage
cage-shaped protective device, permanently fixed to the ladder, to minimize the risk of persons falling
from ladders
Note 1 to entry: See Figure 14, Figure 15, Figure 20 a) and Figure B.1.
3.7.2
guided type fall arrester on rigid anchorage line
fall arrester
protective equipment permanently fixed to the ladder and used in combination with personal protective
equipment
Note 1 to entry: See also definition in EN 353–1 and EN 363.
3.8
departure area
entrance
bottom level of the surroundings or of the intermediate platform (3.11) from which a person starts to
climb the ladder or ladder system (3.1)
Note 1 to entry: See Figure 3 a) and Figure 3 b).
4 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
3.9
arrival area
exit
top level of the surroundings or of the intermediate platform (3.11) to which, the person steps after the
ascent or the descent downwards starts
Note 1 to entry: See Figure 3 a) and Figure 3 b).
Note 2 to entry: In a ladder system with staggered flights, the arrival area (3.9) can also be a departure area (3.8)
for subsequent ascent.
3.10
intermediate landing
horizontal structure between two consecutive ladder flights (3.4), used with ladders having staggered
flights, which is designed to change the ladder flights or for resting
Note 1 to entry: See Figure 20.
3.11
intermediate platform
horizontal structure between two consecutive ladder flights (3.4) which is designed to allow more than
one person at the same time to change or to rest in the ladder system
Note 1 to entry: See Figure 19.
3.12
rest platform
horizontal structure on a single ladder flight (3.4) which is designed to allow more than one person at
same time to rest in the ladder system
Note 1 to entry: See Figure 18.
3.13
moveable rest landing
area equipped with the required protective means designed to incite that the user of the ladder system
(3.1) can rest but cannot interchange
Note 1 to entry: See Figure 21 a) and Figure 21 b).
3.14
access platform
horizontal structure at the departure area (3.8) or arrival area (3.9) used by a person for access to a
ladder system (3.1)
3.15
trap door
hatch, intended to be opened temporarily to provide access through a platform or other horizontal
structure
Note 1 to entry: See Figure 13.
3.16
non-trained user
person without experience how to use the fall arrester
3.17
well-trained user
person with instruction and experience in how to use the fall arrester
EXAMPLE Installer of wind turbine generator systems.
ISO 14122-4:2016(E)
4 Selection and design of ladder systems
4.1 General
4.1.1 Design and construction
Ladder systems are designed with staggered flights or single flight (see 4.3.2 and 4.3.3).
The ladder(s) should be designed with two stiles. In exceptional cases (e.g. insufficient space for
installation a ladder with two stiles or where a fall arrester is required, because of an altering inclination
of the ladder system), ladder(s) with one stile may be foreseen.
4.1.2 Choice depending on available space
Minimum space can be achieved by using single flights (see 4.3.3 for height restrictions for a single
flight).
Medium space is required when using consecutive staggered flights with landings (see Figure 20).
Maximum space is required when staggered flights and intermediate platforms are applied (see
Figure 19).
4.1.3 Spacing between the ladder and any permanent obstruction
The space between the ladder and any permanent obstruction or obstacles shall be (see Figure 4)
a) measured from the front of the rungs:
1) in front of the ladder:
— at least 650 mm or, where obstacles such as pipes or trays cross, 600 mm;
2) behind the ladder:
— at least 200 mm or, where obstacles such as pipes or trays cross, 150 mm.
b) measured from behind of the rungs:
1) behind the ladder:
— at least 75 mm, except the upper rung, which shall be between 60 mm and 75 mm.
If the stiles are designed to be used as a handrail the space around the stiles shall be at least 75 mm,
except at the level at the arrival area.
6 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
Dimensions in millimetres
Key
1 arrival area
2 obstacles such as pipes or trays
Figure 4 — Space dimensions with permanent obstacles
4.2 Choice of a type fall protection device
4.2.1 Necessity of a fall protection device
In case of an overall falling height ≥3 000 mm, the ladder shall be fitted with a fall protection device.
4.2.2 Types of fall protection devices
The main alternatives for protection of the users of fixed ladders against falling from a height are the
following:
a) Safety cage
The cage is a means which is always present and the actual level of safety is independent of the
operator’s actions, therefore it is the preferred choice.
b) Guided type fall arrester on rigid anchorage line (fall arrester)
A fall arrester is only effective if the user chooses to use it. If a harness with an incompatible sliding
system is used with a guided type fall arrester, there will be a risk of falling.
A combination of both safety cage and fall arrester, shall not be applied.
ISO 14122-4:2016(E)
4.2.3 Guidance for a risk assessment
For the selection of a suitable type of fall protection device, a risk assessment in accordance with
ISO 12100 shall be made for each particular application and especially when drafting type C- standards.
The relevant aspects to be taken into account are, for example, the following:
a) access conditions, such as
1) range limits, and
2) design limits;
b) total climbing height for a fixed ladder;
c) quantum of risk of falling from height and expected severity of injuries;
d) human aspects, such as
1) fatigue,
2) stress, and
3) experience, ability and training;
e) rescue aspects;
f) environmental aspects, such as
1) wind, and
2) extreme temperatures;
g) frequency of use:
1) occasional, or
2) common;
h) handling of
1) tools, and
2) spare parts.
4.3 Height of ladder flights and fall protection device
4.3.1 Limits of space
Surrounding structures, e.g. walls, parts of machines, can provide protection equivalent to a safety
cage when they provide a containment area with dimensions similar to those given for a safety cage in
5.5.1.2.
4.3.2 Ladder systems >3 000 mm and ≤10 000 mm total height, H
These shall be designed as follows:
— staggered flights with a maximum height of the flight, h, of 6 000 mm, equipped with a safety cage;
— a single flight, equipped with a safety cage;
— a single flight, equipped with a guided type fall arrester on a rigid anchorage line (fall arrester).
8 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
Where it is not possible to use a cage, individual protective equipment, e.g. a fall arrester, shall be
provided.
NOTE Fall arresters are intended to be used only by well-trained persons (see Clause 7).
4.3.3 Ladder systems >10 000 mm total height, H
They shall be designed as follows:
— staggered flights with a maximum height of the flight, h, of not more than 6 000 mm equipped either
with a safety cage;
— staggered flights equipped with a fall arrester;
— a single flight be equipped with a fall arrester.
For non-trained users, only staggered flights equipped with a safety cage shall be provided.
Where it is not possible to use a cage, individual protective equipment shall be provided.
NOTE The fall arrester is intended to be used only by well–trained persons (see Clause 7).
4.4 Platforms and landings
4.4.1 Installation of platforms at arrival and departure areas
If the present areas on site at the departure area and arrival area are not built horizontally, solidly and
even, platforms or other means shall be applied to achieve this requirement.
4.4.2 Arrangement of platforms and landings for ladders with a total height, H >10 000 mm
4.4.2.1 General
Where it is intended that more than one person will use the ladder system at the same time, depending
on the type of the fall protection device, intermediate platforms or rest platforms shall be provided (see
4.4.2.2 to 4.4.2.4).
4.4.2.2 Ladders equipped with a safety cage
Intermediate platforms or landings with a distance ≤6 000 mm shall be applied at the change of ladder
systems with staggered flights (see Figure 3b).
4.4.2.3 Ladders equipped with a fall arrester and a total height, H, ≥24 000 mm
Ladders with single flights shall be equipped with rest platforms with distances ≤24 000 mm (see
Figure 5). In between, an additional rest platform with distances ≤12 000 mm shall be fitted (see
Figure 5). In case of insufficient space, moveable rest landings according to 5.6.4 may be fitted.
Ladders with staggered flights shall be equipped with intermediate platforms at intervals ≤24 000 mm
(see Figure 19). In between, additional rest platforms at intervals ≤12 000 mm shall be provided (see
Figure 5). In case of insufficient space, moveable rest landings according to 5.6.4 may be fitted.
4.4.2.4 Ladders equipped with a fall arrester and a total height, H, <24 000 mm
Rest platforms (see Figure 18) at intervals ≤12 000 mm shall be provided. When sufficient space cannot
be made available, moveable rest landings according to 5.6.4 may be provided.
ISO 14122-4:2016(E)
Dimensions in millimetres
Key
1 departure area
2 rest platform
3 intermediate platform
4 arrival area
5 fixed ladder system (schematic drawing)
Figure 5 — Arrangements of platforms and landings on ladders equipped with a fall arrester
5 Specific requirements of ladder systems
5.1 General requirements
The ladder system shall be designed so that the ladder itself and its attachment withstand reasonably
foreseeable static and dynamic conditions. Criteria to be considered are, for example, the following:
— weight of the ladder system;
— maximum number of person staying in the ladder system;
— additional action occurring when the fall arrester will be activated.
If no other action/loads are relevant the, actions in 5.1.1 to 5.1.3 shall be applied.
5.1.1 Permanent action (dead load)
The mass of every component of the ladder shall be taken into account.
10 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
5.1.2 Variable action (rated load)
Loads F = 1,5 kN and F = 1,5 kN (see Figure 6) shall be used during the design of a ladder to represent
1 2
a person.
The simulated load for the rungs F (see Figure 6 a) and b) for a person shall be applied perpendicular to
the rung at the most unfavourable position and equally distributed over a maximum length of 100 mm.
The simulated loads for the stile(s) F shall be applied with a separation distance of 2 000 mm and
parallel to the longitudinal axis of the ladder. The distance between the loads F and the stile(s) shall be
300 mm [see Figure 6 c)].
For ladders with two stiles, the load F shall be taken to be shared equally by both stiles [see Figure 6 c)].
For platforms and landings as specified in 5.6, a concentrated load of 1,5 kN per person, applied at the
most unfavourable position, shall be taken in to account.
For platforms, intermediate landings and moveable rest landings (one part) [see Figure 21 a)],
concentrated loads are loads distributed over a load area of 200 mm × 200 mm.
For moveable rest landings (two parts) [see Figure 21 b)], concentrated loads are loads distributed over
two load areas, each of 100 mm × 100 mm.
Platforms shall be designed in accordance with ISO 14122-2 and ISO 14122-3.
ISO 14122-4:2016(E)
Dimensions in millimetres
a) Simulated loads on rungs for ladders with b) Simulated loads on rungs for ladders with
two stiles one stile
c) Simulated loads for stiles (schematic drawing)
Key
F simulated load for rungs
F simulated load for stiles
Figure 6 — Simulated loads on the ladder
12 © ISO 2016 – All rights reserved
ISO 14122-4:2016(E)
5.1.3 Additional loading
5.1.3.1 General
Additional loading, e.g. caused by wind or snow, fall protection devices (see 5.1.3.2 and 5.1.3.3) shall be
taken into account in stability calculations.
Loading on ladders, e.g. by impacts of trucks, is normally not considered.
5.1.3.2 Fall arrester
Calculations shall take into account the loading on the anchor line and the ladder when the fall
protection device is activated by a falling person. In the absence of actual data, a minimum vertical
force of 6 kN shall be assumed.
5.1.3.3 Safety cage
For the design of the safety cage, as a minimum the test procedure of 6.2.2 shall be applied.
5.1.3.4 Ladder anchorage system
Calculations shall take into account a minimum load of ≥3 kN acting on each stile for ladders with two
stiles, and a load of ≥6 kN acting on the single stile of ladders with one stile.
For calculation, it may be assumed that the load will be transmitted to fixed parts of surroundings (e.g.
wall or enclosu
...
Frequently Asked Questions
EN ISO 14122-4:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4:2016)". This standard covers: ISO 14122-4:2016 gives requirements for fixed ladders which are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and movable parts of fixed ladder systems. NOTE 1 "Fixed" means of access are those mounted in such a manner (for example, by screws, nuts, welding) that they can only be removed by the use of tools. ISO 14122-4:2016 specifies minimum requirements that also apply when the same means of access is required as the part of the building or civil construction (e.g. fixed ladders) where the machine is installed, on condition that the main function of that part of the construction is to provide a means of access to the machine. NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of access which are outside the scope of the standard. It is intended that this part of ISO 14122 be used with ISO 14122‑1 to give the requirements for fixed ladder systems. The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed means of access are necessary. It is not applicable to powered means of access such as lifts, escalators, or other devices specially designed to lift persons between two levels. ISO 14122-4:2016 is not applicable to machinery manufactured before the date of its publication.
ISO 14122-4:2016 gives requirements for fixed ladders which are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and movable parts of fixed ladder systems. NOTE 1 "Fixed" means of access are those mounted in such a manner (for example, by screws, nuts, welding) that they can only be removed by the use of tools. ISO 14122-4:2016 specifies minimum requirements that also apply when the same means of access is required as the part of the building or civil construction (e.g. fixed ladders) where the machine is installed, on condition that the main function of that part of the construction is to provide a means of access to the machine. NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of access which are outside the scope of the standard. It is intended that this part of ISO 14122 be used with ISO 14122‑1 to give the requirements for fixed ladder systems. The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed means of access are necessary. It is not applicable to powered means of access such as lifts, escalators, or other devices specially designed to lift persons between two levels. ISO 14122-4:2016 is not applicable to machinery manufactured before the date of its publication.
EN ISO 14122-4:2016 is classified under the following ICS (International Classification for Standards) categories: 13.110 - Safety of machinery. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 14122-4:2016 has the following relationships with other standards: It is inter standard links to EN ISO 14122-4:2004, EN ISO 14122-4:2004/A1:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 14122-4:2016 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC; Standardization Mandates: M/396, M/BC/CEN/88/13. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN ISO 14122-4:2016 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
La norme EN ISO 14122-4:2016 aborde des exigences essentielles pour les échelles fixes utilisées comme moyens d'accès permanents aux machines stationnaires. En ce sens, le champ d'application de cette norme est particulièrement pertinent, car il inclut aussi bien les parties non motorisées ajustables que les éléments mobiles des systèmes d'échelles fixes. Cette approche garantit que les différents types de moyens d'accès, qu'ils soient intégrés à la machine ou à la construction elle-même, soient pris en compte de manière exhaustive. Un des points forts de la norme réside dans ses exigences minimales, qui sont également appliquées lorsque l'échelle fait partie intégrante de la construction où la machine est installée. Cela souligne son aspect pratique et sa capacité à s'adapter aux diverses configurations de chantier. Par ailleurs, la note précisant que, en l'absence de réglementation locale, cette norme peut être utilisée pour d'autres moyens d'accès renforce sa flexibilité et sa pertinence dans des contextes variés. La norme ISO 14122-4:2016, en étant partie intégrante de la série ISO 14122, s'intègre harmonieusement avec les autres sections, notamment ISO 14122-1. Cela permet d'établir un cadre cohérent pour la conception et l'utilisation des systèmes d'échelles fixes, garantissant ainsi la sécurité des utilisateurs. Il est également important de noter que cette norme ne s'applique pas aux moyens d'accès motorisés, tels que les ascenseurs ou les escalators, ce qui précise son domaine d'application et évite d'éventuelles confusions. En précisant que la norme ne s'applique pas aux machines fabriquées avant sa publication, elle établit un standard clair et actuel pour les nouvelles constructions et équipements. En somme, la norme EN ISO 14122-4:2016 se distingue par sa portée exhaustive et sa capacité à contribuer à la sécurité des accès aux machines. Son approche systémique, couplée à ses exigences minimales adaptées aux besoins des utilisateurs, fait de cette norme un outil précieux pour les professionnels impliqués dans la conception et l'entretien des moyens d'accès fixes.
The standard EN ISO 14122-4:2016 addresses the safety of machinery through the establishment of requirements for fixed ladders that serve as permanent means of access to machinery. It focuses specifically on fixed ladders as components of stationary machines while extending its relevance to non-powered adjustable features and movable parts of fixed ladder systems. One of the key strengths of ISO 14122-4:2016 is its comprehensive scope, which defines "fixed" access means as those securely mounted and removable only with tools, ensuring long-term stability and safety. This clear definition supports manufacturers and operators in correctly implementing the standard while maintaining high safety standards for personnel accessing machinery. Furthermore, the standard aligns with the overarching ISO 14122 series, facilitating a cohesive framework when used in conjunction with ISO 14122-1. This structure allows for a thorough approach to ensuring safety measures across both stationary and mobile machinery, although it explicitly excludes powered means of access such as lifts and escalators, focusing instead on passive safety measures. ISO 14122-4:2016 is of significant relevance, particularly in environments where fixed ladders are integral to machine accessibility, providing standardized guidelines that can also apply to fixed ladders within the context of building or civil construction, as long as their primary function is to facilitate access to the machinery. This adaptability ensures that the standard remains applicable even in the absence of local regulations. The document is forward-looking, specifying that it is not applicable to machinery manufactured before its publication, thereby pushing for contemporary safety practices within the industry. Overall, EN ISO 14122-4:2016 establishes crucial safety protocols for fixed ladders, thereby enhancing workplace safety in machinery operations.
Die Norm EN ISO 14122-4:2016 legt wesentliche Anforderungen für feste Leitern fest, die Teil von stationären Maschinen sind. Diese Norm ist besonders relevant für die Sicherheit von Maschinen und stellt sicher, dass die Zugangswege zu gefährlichen Bereichen der Maschinen sowohl sicher als auch praktisch sind. Ein herausragendes Merkmal dieser Norm ist ihr klar definiertes Anforderungsprofil für fest installierte Zugänge, die nicht ohne Werkzeug entfernt werden können. Dies gewährleistet, dass die feststehenden Leitern stabil und dauerhaft sind, was für die Sicherheit der Bediener von entscheidender Bedeutung ist. Darüber hinaus berücksichtigt die Norm auch nicht-antriebstechnische verstellbare Teile wie faltbare oder verschiebbare Elemente, die in die festen Leitersysteme integriert sind, und stellt sicher, dass diese ebenso sicher gestaltet sind. Ein weiterer Vorteil der EN ISO 14122-4:2016 liegt darin, dass sie Mindestanforderungen für den Zugang sowohl zu Maschinen als auch zu den Gebäuden oder Baukonstruktionen, in denen diese Maschinen installiert sind, festlegt. Dies bedeutet, dass die Norm auch Anwendung findet, wenn der Zugang Teil eines Bauwerks ist, solange die Hauptfunktion des Zugangs darin besteht, den Zugang zur Maschine zu gewährleisten. Die Norm ist zudem darauf ausgelegt, in Kombination mit ISO 14122-1 verwendet zu werden, um umfassende Anforderungen für fixe Leitersysteme zu bieten. Dies stellt sicher, dass Benutzer eine vollständige Richtlinie erhalten, die sowohl stationäre als auch mobile Maschinen abdeckt, bei denen feste Zugänge notwendig sind. Es ist jedoch zu beachten, dass die Norm nicht für elektrische Aufzüge, Rolltreppen oder andere speziell entwickelte Geräte zur Personenbeförderung zwischen verschiedenen Ebenen relevant ist. Zusammenfassend lässt sich sagen, dass die EN ISO 14122-4:2016 eine unverzichtbare Norm für die Sicherheit und Zuverlässigkeit von fest installierten Zugangswegen zu Maschinen darstellt und die Notwendigkeit eines durchgängigen Sicherheitsstandards in der Maschinenbauindustrie unterstützt.
ISO 14122-4:2016は、固定はしごに関する標準であり、固定式機械への安全なアクセス手段を提供するための要件を定めています。この標準は、固定はしごが固定された機械の一部として存在する際の基本的な安全基準を提示しており、また固定はしごの非動力調整部分（たとえば、折りたたみ式やスライド式）や可動部分も対象としています。 この標準の強みは、動かすことができない「固定」手段の明確な定義にあります。「固定」とは、ねじやナット、溶接等により取り付けられ、工具を使用しない限り取り外せないことを意味します。これにより、機械へアクセスするための手段が安全に確保され、作業者のリスクを軽減します。 これに加えて、ISO 14122-4:2016は、機械が設置されている建物や土木構造物の一部として、同じアクセス手段が必要とされる場合にも適用されます。この適用範囲により、建物全体の安全性が向上し、固定はしごが主要なアクセス手段として機能することが保証されます。 また、地域の規制や標準が存在しない場合、この標準は他のアクセスポイントにも使えるため、非常に柔軟性があります。ISO 14122-4は、特にISO 14122-1と併用することを意図しており、固定はしごシステムの要件を包括的に提供します。 ISO 14122シリーズ全体は、固定アクセス手段が必要な定置型および動的な機械に適用できるように設計されていますが、エレベーターやエスカレーターなどの動力を使用したアクセス手段には適用されません。この明確な適用範囲が、この標準の整合性と専門性を高めています。 最後に、ISO 14122-4:2016は、その公表日以前に製造された機械には適用されないため、業界の新しい基準を参照する際の重要な指標となります。この標準は、機械の安全性を確保するために不可欠なものであり、多くの業界において採用されるべき重要な要素です。
SIST EN ISO 14122-4:2016 표준은 고정 사다리에 관한 요구사항을 제시하며, 이는 정지 기계의 일환으로 설치된 고정 사다리에 적용됩니다. 이 표준의 범위는 고정 사다리 시스템의 비전동 조정 가능한 부분(접이식, 슬라이드형 등)과 이동 가능한 부분을 포함합니다. "고정"이라는 용어는 도구를 사용해야만 제거할 수 있는 방식으로 설치된 구조를 의미하며, 이는 안전성을 높이는 중요한 요소입니다. ISO 14122-4:2016은 기계에 접근하기 위한 수단으로 건물이나 토목 구조물의 일부로 필요할 때 적용할 수 있는 최소 요구 사항을 명시하고 있습니다. 이 점은 설치된 기계에 대한 접근을 보장하는 중요한 기준으로 작용합니다. 또한, 해당 지역에 규제나 표준이 존재하지 않는 경우에도 ISO 14122의 이 부분은 표준의 범위를 벗어난 접근 수단에도 적용될 수 있습니다. 이 표준은 ISO 14122-1과 함께 사용될 수 있도록 설계되었으며, 고정 사다리 시스템에 대한 요구 사항을 제공하는 데 목적이 있습니다. 전체 ISO 14122 시리즈는 고정 접근 수단이 필요한 정지 기계 및 이동 기계 모두에 적용되지만, 전동식 접근 수단(엘리베이터, 에스컬레이터 등)에는 적용되지 않습니다. 따라서, 이 표준은 기계의 안전하고 효율적인 접근을 보장하기 위한 필수적인 지침이 됩니다. 마지막으로, ISO 14122-4:2016은 발표된 날짜 이전에 제조된 기계에는 적용되지 않으며, 이 점은 표준의 적용 범위를 명확히 정의하는 데 중요한 요소입니다. 이러한 강점을 가지고 있는 ISO 14122-4:2016 표준은 고정 사다리의 안전성을 높이는 데 기여하며, 기계 접근의 안전성을 보장하는 데 필수적인 기준으로 평가됩니다.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...