prEN 15955-1

Railway applications - Track - Demountable machines and associated equipment - Part 1: Technical requirements for running and working

This European Standard deals with the technical requirements to minimize the specific railway hazards of self propelled demountable machines - henceforward referred to as machines - and associated equipment, which can arise during the commissioning, the operation and the maintenance of these machines when carried out in accordance with the specification given by the manufacturer or his authorised representative. This European Standard applies to machines that are not intended to operate signalling and control systems. Other similar machines are dealt with in other European Standards, see Annex F.
NOTE   Machines not intended for operating signalling and control systems are only permitted to run under special conditions and within areas specifically designated by the infrastructure manager.
Part 1 of this standard deals with the requirements for approval of machines by an authorised body; part 2 deals with the requirements for the machine to be declared conformant by the manufacturer, except in the case of machines classified in Machinery Directive, Annex 4 which requires conformity check in conjunction with a notified body.
Additional requirements can apply for running on infrastructures with narrow gauge or broad gauge lines, lines of tramways, railways utilizing other than adhesion between the rail and rail wheels and underground infrastructures.
This European Standard is also applicable for machines and associated equipment that in working configuration are partly supported on the ballast or the formation.
This European Standard does not apply to the following:
-   requirements for quality of the work or performance of the machine;
-   specific requirements established by the railway infrastructure operator for the use of machines, which will be the subject of negotiation between the manufacturer and the purchaser;
-   separate machines temporarily mounted on demountable machines and associated equipment.

Bahnanwendungen - Oberbau - Ausgleisbare Maschinen und zugehörige Ausstattung - Teil 1: Technische Anforderungen an das Fahren und den Arbeitseinsatz

Applications ferroviaires - Voie - Machines déraillables et éléments associés - Partie 1: Prescriptions techniques pour la circulation et le travail

Železniške naprave - Zgornji ustroj proge - Motorna vozila za posebne namene in pripadajoča oprema - 1. del: Tehnične zahteve za vožnjo in delovanje

General Information

• Status: Not Published
• ICS: 45.060.20 - Trailing stock
• ICS: 45.120 - Equipment for railway/cableway construction and maintenance
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/SC 1/WG 5 - Track construction and maintenance machines
• Current Stage: 4098 - Decision to abandon - Enquiry
• Due Date: 12-Oct-2010
• Completion Date: 12-Oct-2010
• Mandate: M/024 - Mandate to CEN/CENELEC/ETSI for programming and standardization in the field of railway equipment
• Mandate: M/334 - Mandate for programming and standardisation addressed to CEN, CENELEC and ETSI in the field of the Interoperability of the trans-european conventional rail system
• Ref Project: oSIST prEN 15955-1:2009 - Railway applications - Track - Demountable machines and associated equipment - Part 1: Technical requirements for running and working

Overview

prEN 15955-1 - Railway applications - Track - Demountable machines and associated equipment - Part 1: Technical requirements for running and working is a CEN draft European Standard that defines safety and approval requirements for self‑propelled demountable machines used on railway track. The standard focuses on minimizing railway‑specific hazards during commissioning, operation and maintenance when machines are used according to manufacturer specifications. It applies to machines that do not operate signalling and control systems and covers approval by an authorised body (Part 1). Part 2 covers manufacturer declaration of conformity.

Key topics and technical requirements

The standard organizes detailed technical requirements to ensure safe running and working of demountable machines. Major topics include:

• Machine categorization and scope - definitions, categories and limits of applicability (exclusions include signalling equipment and separate temporary machines).
• Gauge and working limits - running gauge, lateral and vertical working limits, and special provisions for narrow/broad gauge, tramway or non‑adhesion lines.
• Interaction with infrastructure - wheel/rail interfaces, auxiliary wheels, guides, loads on ballast and formation, and forces on structures.
• Running safety and derailment prevention - requirements for different speed ranges, track testing and lifeguards.
• Stability and structural design - frame design, lifting/jacking points and overturning prevention.
• Running gear and suspension - wheelset arrangements, wheel profiles, axle load distribution, suspension types (including active/locked systems).
• Braking and control systems - general braking rules and specific continuous air brake requirements.
• Visibility, audibility and lighting - marker lights, tail lamps, headlights, horn and colour/markings for safe operation.
• Warning systems and personnel protection - acoustic/optical warnings for adjacent lines and platforms for setting up warning units.
• Electrical safety and EMC - equipotential bonding, antennae, pantograph considerations and electromagnetic compatibility.
• Failure recovery and on/off tracking - towing devices, emergency devices, use of turntables, setting up and packing away.
• Attachments and MEWPs - railway‑specific attachments, mobile elevating work platforms and work‑area safety.
• Marking, numbering and user information - identification plates, machine numbering structure and required documentation for approval and conformity checks.

Applications and users

Who uses prEN 15955-1:

• Manufacturers and designers of demountable railway machines and associated equipment
• Notified/authorised bodies performing type approval and conformity verification
• Railway infrastructure managers specifying permitted machine operation areas and special national conditions
• Procurement teams and contractors involved in track construction, maintenance and safety compliance
• Safety engineers assessing machine‑to‑infrastructure interactions (braking, loads, EMC)

Practical applications:

• Preparing type approval dossiers and conformity checks
• Specifying machine design features (running gear, braking, stability)
• Defining operational limits, on/off‑tracking procedures and warning arrangements on live networks

Related standards

• Part 2 of prEN 15955 series (manufacturer conformity declaration)
• Machinery Directive references (Annex 4) for machines requiring notified body checks
• Other CEN standards covering machines that interact with signalling/control systems (see Annex F)

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2009
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VSUHPOMDMRþDRSUHPDGHO7HKQLþQH]DKWHYHNLVHQDQDãDMRQDYRåQMRLQQD
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Railway applications - Track - Demountable machines and associated equipment - Part
1: Technical requirements for running and working
Bahnanwendungen - Oberbau - Ausgleisbare Maschinen und zugehörige Ausstattung -
Teil 1: Technische Anforderungen an das Fahren und den Arbeitseinsatz
Applications ferroviaires - Voie - Machines déraillables et éléments associés - Partie 1:
Prescriptions techniques pour la circulation et le travail
Ta slovenski standard je istoveten z: prEN 15955-1
ICS:
45.060.20 Železniški vagoni Trailing stock
45.120 2SUHPD]DJUDGQMRLQ Equipment for
Y]GUåHYDQMHåHOH]QLFR] railway/cableway
åLþQLF construction and
maintenance
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2009
ICS
English Version
Railway applications - Track - Demountable machines and
associated equipment - Part 1: Technical requirements for
running and working
Applications ferroviaires - Voie - Machines déraillables et Bahnanwendungen - Oberbau - Ausgleisbare Maschinen
éléments associés - Partie 1: Prescriptions techniques pour und zugehörige Ausstattung - Teil 1: Technische
la circulation et le travail Anforderungen an das Fahren und den Arbeitseinsatz
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15955-1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .5
Introduction .6
1 Scope .7
1.1 General .7
1.2 Validity of this European Standard .8
2 Normative references .8
3 Terms and definitions .9
4 Machine categorization . 13
4.1 Categories . 13
5 Railway specific safety requirements and/ or measures . 14
5.1 Gauge . 14
5.1.1 Running gauge . 14
5.1.2 Demountable machine in running configuration . 14
5.1.3 Working limit . 15
5.1.4 Determination of lateral limit of exceedance allowed on curves in working configuration . 16
5.1.5 Limits in lower area in working and running configuration . 16
5.1.6 Working limit in the upper area . 17
5.2 Interaction with the infrastructure . 17
5.2.1 General . 17
5.2.2 Main wheels . 18
5.2.3 Auxiliary wheels, auxiliary guides and working parts . 18
5.2.4 Loads applied to the ballast . 19
5.2.5 Loads applied to the formation . 19
5.2.6 Forces on structures as a function of axle load configurations . 19
5.3 Running safety equipment . 20
5.4 Running safety and prevention of derailment . 20
5.4.1 General . 20
5.4.2 Running safety for demountable machines running at a speed of 60 km/h < v ≤ 100 km/h . 20
5.4.3 Running safety for demountable machines running at a speed of < 60 km/ h . 20
5.4.4 Track test for all machines . 21
5.4.5 Lifeguards . 21
5.5 Stability and prevention of overturning . 21
5.6 Machine frame and structure . 22
5.6.1 Design of the machine frame . 22
5.6.2 Lifting and jacking points . 22
5.7 Inter machine couplings . 23
5.8 Running gear . 24
5.8.1 General . 24
5.8.2 Distribution of the wheelset forces in running configuration . 24
5.8.3 Machine rail wheel base . 24
5.8.4 Rail wheel, wheel profile . 25
5.8.5 Rail wheel arrangements . 26
5.8.6 Load on rail wheels. 26
5.8.7 Load on rail wheels in working condition . 27
5.8.8 Operation of spring loaded points . 29
5.9 Rail wheel suspension . 29
5.9.1 Rail wheel suspension systems . 29
5.9.2 Active suspension . 29
5.9.3 Positively locked suspension . 29
5.9.4 All suspension systems . 29
5.10 Braking . 29
5.10.1 General braking requirements . 29
5.10.2 Specific requirements for continuous air brake system . 30
5.11 Driving and working cabs and places . 31
5.12 Controls . 31
5.13 Visibility and audibility of the machine . 31
5.13.1 Lighting in running configuration – marker lights . 31
5.13.2 Tail lamps . 32
5.13.3 Lighting with failed engine . 32
5.13.4 Lamp brackets . 32
5.13.5 Light switching arrangements . 34
5.13.6 Head lights . 34
5.13.7 Lighting in working configuration . 34
5.13.8 Horns in running configuration . 34
5.13.9 Colour of the machine . 34
5.14 Warning systems for personnel of traffic on adjacent lines in working configuration. 35
5.14.1 General . 35
5.14.2 Acoustic warning systems . 35
5.14.3 Optical warning devices . 35
5.14.4 Platform to set up a warning unit . 35
5.15 Electrical equipment and earth bonding . 35
5.15.1 Equi-potential bonding . 35
5.15.2 Antennae . 36
5.15.3 Pantograph . 36
5.16 Electro-magnetic compatibility . 36
5.16.1 Emissions from demountable machines . 36
5.16.2 Immunity of demountable machines from railway environment . 36
5.17 Power supply . 37
5.18 Failure recovery . 37
5.18.1 General . 37
5.18.2 Towing devices . 37
5.18.3 Emergency device . 37
5.19 On and off tracking . 37
5.19.1 General . 37
5.19.2 Use of turntables . 38
5.20 Setting up and packing away . 38
5.20.1 General . 38
5.20.2 Emergency recovery of equipment . 38
5.21 Mobile elevating work platform (MEWP) and excavators/ loaders used as MEWPs . 38
5.22 General and railway specific attachments . 38
5.22.1 General . 38
5.22.2 General attachments for raising and lowering personnel . 38
5.22.3 Railway specific attachments with rail guidance wheels . 39
5.23 Exhaust . 39
6 Marking and numbering of the machine . 39
6.1 Warning signs and pictograms . 39
6.2 Machine identification number . 39
6.3 Identification plate and details of the railway infrastructure where the machine is allowed
to work . 39
7 User information . 39
8 Verification of the conformity to the requirements and/ or particular safety measures . 41
Annex A (informative) Special national conditions . 42
Annex B (normative) Check list for conformity . 46
Annex C (normative) Certificates . 50
C.1 Certificate of type approval to prEN xxxzz-1:2009 . 50
C.2 Conformance control document for the technical requirements of prEN XXXZZ – 1:2009 . 51
C.2.1 Machine identification . 51
Annex D (normative) Machine numbering structure . 53
D.1 General . 53
Annex E (informative) Machine identification plate . 56
Annex F (informative) Structure of European standards for track construction and maintenance
machines . 57
Bibliography . 58

Foreword
This document (prEN 15955-1:2009) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of
Directive 2004/17/EC of the European Parliament and of the Council of 31 March 2004 coordinating the
1)
procurement procedures of entities operating in the water, energy, transport and postal services sectors .
"Railway applications — Track — Demountable machines and associated equipment" consists of the following
parts:
 Part 1: Technical requirements for running and working;
 Part 2: General safety requirements.

1) Official Journal of the European Communities No L 134 of 30.04.04
Introduction
The machinery concerned and the extent to which hazards, hazardous situation and events are covered are
indicated in the scope of this European Standard.
This European Standard was prepared to meet the basic requirements of EU Directives to facilitate an open
market for goods and services.
Demountable machines as specified in 3.1 form the object of this standard.
This standard deals with railway specific risks of the demountable machines, defined in clause 4 when running
and working on railway infrastructures.
The safety requirements in relation to the Machinery Directive are dealt with in prEN xxxzz-2 of this series of
standards.
Deviations or special national conditions are dealt with in Annex A.
The risks which exist in all mechanical, electrical, hydraulic, pneumatic and other components of machines
and which are dealt with in the relevant European Standards are not within the scope of this European
Standard. If necessary, references are made to appropriate standards of this type.
1 Scope
1.1 General
This European Standard deals with the technical requirements to minimize the specific railway hazards of self
propelled demountable machines - henceforward referred to as machines - and associated equipment, which
can arise during the commissioning, the operation and the maintenance of these machines when carried out
in accordance with the specification given by the manufacturer or his authorised representative. This
European Standard applies to machines that are not intended to operate signalling and control systems. Other
similar machines are dealt with in other European Standards, see Annex F.
NOTE Machines not intended for operating signalling and control systems are only permitted to run under special
conditions and within areas specifically designated by the infrastructure manager.
Part 1 of this standard deals with the requirements for approval of machines by an authorised body; part 2
deals with the requirements for the machine to be declared conformant by the manufacturer, except in the
case of machines classified in Machinery Directive, Annex 4 which requires conformity check in conjunction
with a notified body.
Additional requirements can apply for running on infrastructures with narrow gauge or broad gauge lines, lines
of tramways, railways utilizing other than adhesion between the rail and rail wheels and underground
infrastructures.
This European Standard is also applicable for machines and associated equipment that in working
configuration are partly supported on the ballast or the formation.
This European Standard does not apply to the following:
 requirements for quality of the work or performance of the machine;
 specific requirements established by the railway infrastructure operator for the use of machines,
which will be the subject of negotiation between the manufacturer and the purchaser;
 separate machines temporarily mounted on demountable machines and associated equipment.
This European Standard does not establish the additional requirements for the following:
 operation subject to special rules, e. g. potentially explosive atmospheres;
 hazards due to natural causes, e. g. earthquake, lightning, flooding;
 working methods;
 operation in severe working conditions requiring special measures, e.g. work in tunnels or in
cuttings, extreme environmental conditions such as freezing temperatures, high temperatures,
corrosive environment, tropical environment, contaminating environments, strong magnetic
fields;
 hazards due to errors in software;
 hazards occurring when used to handle suspended loads which may swing freely.
Other track construction and maintenance machines used on railway tracks are dealt with in other European
Standards, see Annex F.
1.2 Validity of this European Standard
This European Standard applies to all demountable machines, which are ordered one year after the
publication date by CEN of this standard.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 286-3, Simple unfired pressure vessels designed to contain air or nitrogen — Part 3: Steel pressure
vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock
EN 791, Drill rigs — Safety
EN ISO 12100-1 Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology, methodology
EN 12663, Railway applications — Structural requirements of railway vehicle bodies
EN 13309, Construction machinery — Electromagnetic compatibility of machines with internal electrical
power supply
EN 13715, Railway applications — Wheelsets and bogies — Wheels — Wheels tread
prEN 14033-1:2008, Railway applications — Track — Railbound construction and maintenance machines —
Part 1: Technical requirements for running
EN 14033-2:2008, Railway applications — Track — Railbound construction and maintenance machines —
Part 2: Technical requirements for working
EN 14363:2005, Railway applications — Testing for the acceptance of running characteristics of railway
vehicles — Testing of running behaviour and stationary tests
EN 15273-2, Railway Applications — Gauges — Part 2: Rolling stock gauge
EN 50121-3-1:2006, Railway applications — Electromagnetic compatibility — Part 3-1: Rolling stock; Train
and complete vehicle
EN 50121-3-2:2007, Railway applications — Electromagnetic compatibility — Part 3-2: Rolling stock;
Apparatus
EN 50122-1, Railway applications — Fixed installations — Part 1: Protective provisions relating to electrical
safety and earthing
EN 60947 series, Low-voltage and switchgear and controlgear
prEN xxxyy-1:2009, Railway applications — Track — Trailers and associated equipment — Part 1: Technical
requirements for running and working
prEN xxxyy-2:2009; Railway applications — Track — Trailers and associated equipment — Part 2: General
safety requirements
prEN xxxzz-2:2009, Railway applications — Track — Demountable machines and associated equipment —
Part 2: General safety requirements
2)
UIC 541-1:2003, Brakes — Regulations concerning the construction of the various brake components
2)
UIC 577:2005, Wagons; stresses
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100-1 and the following apply.
3.1
demountable machine
machine that can run and work on rail and which is not intended to operate signalling and control systems
NOTE 1 Such a machine is designed to get on and off track by its own means or with other lifting equipment. In the
case of demounting by its own means these are not intended for running on the ground.
NOTE 2 Such a machine is permitted to work on the railway only under special operating conditions granted by the
infrastructure manager and run under special conditions granted by the authorised body and/or the
infrastructure manager.
3.2
road-rail machine
self propelled machine that can run on rails and ground
NOTE 1 It is normally a road vehicle adapted for running on rail also, but can be also a specially designed rail vehicle
for running on the ground also.
NOTE 2  It does not imply that the machine is suitable for use on the public road.
3.3
trailer
non-self propelled machine that can be hauled on rail wheels
NOTE Trailers are not intended to operate signalling and control systems and are not designed to be transported
between work areas on their rail wheels.
3.5
railbound machine
machine that can run and work only on rail and is transported on its rail wheels. The machine is specifically
designed to operate signalling and control systems and is intended for infrastructure work. The machine can
be self propelled or hauled
3.6
trolley
equipment for transport along track of materials, tools and/or various equipment, moving on wheels or runners
and operated only by human force. It is designed so that it can be manually placed on or off the track
3.7
portable machine
machine designed or adapted to be worked on the track, transportable by hand with or without trolleys or
separate supports for movement on rail(s), and be operated by internal combustion, electrical, mechanical,
hydraulic, pneumatic energy sources or from an external supply, but is not powered for movement along track.
It is designed so that the machine and/or its separate component parts may be manually placed on or off the
track
2) May be purchased from: Union Internationale de Chemins de fer (UIC), 14 rue Jean Rey, F-75015 Paris.
3.8
mobile elevating work platform
(MEWP)
mobile machine that is intended to move persons to working positions where they are carrying out work from
the work platform with the intention that persons are getting on and off the work platform at one defined
access position and which consists as a minimum of a work platform with controls, an extending structure and
a chassis
3.9
host vehicle
basic road vehicle or machine which is converted to run additionally on rails
3.10
manufacturer
body that designs and constructs a demountable machine, or converts the original machine/vehicle to a
demountable machine
3.11
running configuration
state of trailer when it is on the rail and all movable parts are stowed and secured within the applicable kinematic gauge in
accordance with prEN 15273-2 and its acceptable exceedance, see 5.4.1 and 5.4.2
3.12
working configuration
machine is said to be in working configuration as soon as any part of the machine or its equipment is away
from the running configuration
3.13
on and off tracking configuration
configuration of the machine when it is in a state that enables it to be on or off tracked
3.14
running
moving the machine in running configuration along the track
3.15
stationary
standing on the track with the rail wheels not rotating
3.16
operating track
track corresponding to the criteria of the infrastructure manager on which vehicles may run under normal
signalling arrangements (with or without a speed limit)

3.17
working track
track that is being maintained for which the geometrical parameters may reach the limiting values as specified in EN
14033-2:2008, Annex F and for which special operational restrictions may apply
3.18
railway infrastructure
all installations required for the running of railway vehicles
EXAMPLE Tracks, crossings, catenaries, signals.
3.19
operator
person who handles the controls of a machine in order to perform the functions of the machine including
towing or controlling a trailer(s)
3.20
driver
person who handles the controls of a machine in order to control the machine in running configuration moving
along the track including towing or controlling a trailer(s). The driver and operator can be the same
3.21
train
self propelled vehicle/machine or assembly of vehicles/machines attached by couplings conforming to the
relevant regulations of the authorised body and/or infrastructure manager
3.22
special train
assembly of vehicles/machines/trailers attached by couplings conforming to the relevant regulations of the
infrastructure manager, for example an assembly of trailers and/or wagons and/or category 3, 5, 7 machines
described in prEN 14033-1:2008 attached to a demountable machine under conditions prescribed by the
infrastructure manager
3.23
working limit contour
limit in which a machine can work without interfering with the kinematic envelope of trains on adjacent tracks
NOTE For kinematic envelope, see EN 14033-2:2008, Annex D.
3.24
rated load
maximum load that the lifting equipment has been designed for normal operation and the manufacturer states
can be lifted in any specified position
3.25
authorised body
body in a state that, in accordance with the laws and prescriptions in force in that state, is competent to
approve rail vehicles for the use in public rail traffic
3.26
type testing
examination of the first machine, of a new type, for build conformity to the requirements of this standard
3.27
type conformity
consists of an examination of the conformity, of each machine, to the all the safety requirements of this
standard before delivery of the machine
3.28
type approval certificate
document issued after the checking of documents and/or testing of machines in which the agreement of the
use of the machine in the railway infrastructure is confirmed
3.29
type conformance certificate
document, which states that the machine conforms to the design of the first machine of the type that has been
approved
3.30
railway undertaking
any private or public undertaking whose main business is to provide rail transport services for goods and/ or
passengers
3.31
infrastructure manager
any public body or undertaking responsible for establishing and maintaining railway infrastructure, as well as
for operating the railway control and safety systems
3.32
access permit
document issued by the infrastructure manager for an approved machine to run on the railway infrastructure, if
necessary with special access conditions
3.33
supplement to the access permit
supplement to an existing access permit which allows the use of the machine in another CEN-member country,
if necessary taking into account special access requirements
3.35
working agreement
working agreement is a procedure that enables a machine to work on one railway infrastructure. This
procedure consists of two parts:
a) the proof of conformity with the safety requirements, as specified in prEN xxxzz–2:2009 (EC declaration of
conformity), given by the manufacturer;
b) the proof of conformity with the railway specific requirements, as specified in this standard
given by an authorised body of the infrastructure manager
3.36
working authorisation
authorisation given by an infrastructure manager which permits a machine to work on that railway
infrastructure
3.37
methods of examination
consists of visual exams, measurements, functional tests, load test(s), specific verification/measurements and
other controls
NOTE For methods of examination, see Table B.1.
3.38
visual exam
to establish, whether all elements on the machine, system or component, e.g. protective devices, visual
warning device, marking, are present and that documents and drawings correspond to the requirements
3.39
measurement test
to establish whether the stated measurable parameters have met the requirements of this standard, e. g.
geometric dimensions, safety distances, insulation resistance of electric circuits, noise, vibration
3.40
functional test
to establish whether, in unloaded working condition the machine, including all safety devices, works as
intended and all functions comply with the requirements and with the technical documentation
3.41
load test(s)
to establish whether the strength and stability of the equipment under load together with all safety devices and
adjustments meets the requirements of this standard
3.42
specific verification/ measurements
to establish whether the stated requirements of this standard have been met, e.g. calculations, technical
documentation and specific documents of this standard
4 Machine categorization
4.1 Categories
The application of all requirements of this European Standard is not possible in every case because of the
differences in the design of machines. The machines are therefore divided into three types as shown in
Table 1.
Table 1 — Types of machine
Cannot be incorporated Type A Type B Type C
into a train
Self-propelled machine
running speed v
> 60 60 – 30 < 30
km/h
5 Railway specific safety requirements and/ or measures
Machines shall comply with the safety requirements and/ or protective measures in accordance with clauses 5
and 6 and supplied with information in accordance with clause 7. Machines shall be designed to work on
working track within the geometric limits, see EN 14033-2:2008, Annex F, and shall be designed to work on
operating track.
Machines that can only work on operating tracks shall display in each driving cab and on the identification
plate an indication of that restriction, see prEN 14033-1:2008, Annex C.
5.1 Gauge
5.1.1 Running gauge
5.1.1.1 General
Except as shown in 5.1.1.2 machines in running configuration shall meet the dimensional requirements of EN
15273-2. The critical points near the limits of the permissible kinematic gauge, see prEN 14033-1:2008,
Annex C, shall be recorded in the technical documentation detailed in clause 7.
5.1.1.2 Special case for restrictive gauges
Machines intended to travel on infrastructures with more restrictive gauges shall conform to the specific rules
of those infrastructures and the corresponding restrictions shall be indicated on their operating permits.
5.1.2 Demountable machine in running configuration
5.1.2.1 Stowing of moveable machine parts in running configuration
When the machine is in the running configuration any movable equipment which has the capacity to go
outside the gauge shall be capable of being stowed in a manner which prevents inadvertent or unintended
movement out of the gauge. Moveable parts shall be held by either:
 held by efficient locks The visible positive locking elements locking components in running configuration
shall be painted in red. If the locking mechanism is powered the control of locking should preferably be
possible from inside the machine gauge.
or
 held by check valves on hydraulic systems which shall prevent movement and fail safe.
It shall be obvious to anyone checking the machine that these parts of the machine are locked in their stowed
position. Furthermore, for locking devices operable from the cab either a red warning light shall illuminate on
the driver's desk to indicate if any moveable part of the machine is not locked or a green light shall indicate on
the driver's desk that all moveable parts of the machine are locked.

5.1.2.2 Operating controls in running configuration
When in running configuration all operating controls not related to running, including locking devices, shall be
deactivated.
5.1.3 Working limit
5.1.3.1 Interference of gauge
Machines and their moveable component parts shall be designed and built to work without unintentional
interference with the kinematic envelope necessary for the running of machines admitted by the infrastructure
owner without running restrictions on the operating track. For the different zones of work and the zone limit
between the working track and the adjacent operating track in service, see EN 14033-2:2008, 5.3.
Where the clearance, under worst operating conditions, between the underside of a revolving superstructure
and rail level, is less than 1300 mm this shall be recorded in the instruction handbook, see 7 a) 3) ii).
NOTE The clearance of 1300 mm is required to enable the superstructure to slew over adjacent track side structures,
platforms etc. Other distances may be required by some infrastructure managers.
5.1.3.2 Movement limiting devices
5.1.3.2.1 General
Where operation of the machine exceeds the working limit according to 5.1.3.1 the accidental intrusion into
the kinematic envelope of the line open to traffic shall be made impossible by means of lateral and height
limiting devices. The limiting devices are to provide protection against exceedance of the gauge shown in
5.1.1.
Operation of movement limiting devices shall be by key switch or equivalent lock.
The movement limiting devices shall be described with indication of their type and their configuration of
operation in the instruction handbook, see clause 7.
5.1.3.2.2 Design of movement limiting devices
5.1.3.2.2.1 General
Movement limiting devices shall permit the height and rotation limit to be variable to suit each location. The
movement limiting device shall stop the movement when height and lateral limits are reached, or prevent
movement commencing in an unsafe direction if the machine is stopped at its limit. All movement limiting
devices shall comply with 5.1.3.2.2.2 or 5.1.3.2.2.3 or 5.1.3.2.2.4, as appropriate.
5.1.3.2.2.2 Mechanical limiting devices
These devices shall be capable of resisting the foreseeable forces encountered.
NOTE This includes resisting static forces (start-up force of the motion) where they are in the form of a lock, and
dynamic forces where they are in the form of a stop.
5.1.3.2.2.3 Electric limiting devices
The design shall be such that there shall be no credible single point failure that would cause the system to fail
unsafe, i. e. allow the corresponding movement to continue. Any fault, including unacceptable differences in
signals, shall cause the system to fail to a safe condition.
Safety switches acting as information-giving components shall fulfil the requirements as specified in EN 60947
series, or, as an alternative, to these safety switches, sensors or switches may be used under the following
conditions, shown in order of preference:
a) Using sensors or other types of switch duplicated. They shall either be self-verifying at start-up or shall
have continuous monitoring of the signals from the sensors or switches for out-of-range,
or
b) Using an arrangement of a single sensor or switch, provided there is a permanent monitoring of the
plausibility of its signals by means of other sensors or switches not of the same safety device.
5.1.3.2.2.4 Hydraulic limiting devices
Hydraulic limiting devices shall be designed and installed to provide safety levels equivalent to those for
electrical safety devices.
Any credible hydraulic fault shall cause the system to fail to a safe condition, i. e. stop the corresponding
movement.
Pilot-operated control valves in these devices or systems shall be so designed and installed that they fail to
safety, i. e. stop the corresponding movement, in the event of power failure.
5.1.3.2.2.5 Operation of movement limiting devices
When the working demands necessitate an exceedance of the limit of work, it shall only be made possible by
means of a deliberate manual action, e. g. actuating an additional switch or releasing a lock. When the
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