Bsi bs en 01829 1 2010

BRITISH STANDARD

BS EN
1829-1:2010

High pressure water
jet machines — Safety
requirements
Part 1: Machines

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ICS 97.080

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BS EN 1829-1:2010

National foreword
This British Standard is the UK implementation of EN 1829-1:2010.
The UK participation in its preparation was entrusted to Technical
Committee MCE/6, Pumps and pump testing.
A list of organizations represented on this committee can be obtained on
request to its secretary.
This publication does not purport to include all the necessary provisions

of a contract. Users are responsible for its correct application.
Compliance with a British Standard cannot confer immunity
from legal obligations.

Amendments/corrigenda issued since publication
Date

Comments

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This British Standard
was published under the
authority of the Standards
Policy and Strategy
Committee on 28 February
2010
© BSI 2010

ISBN 978 0 580 55584 8

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BS EN 1829-1:2010

EN 1829-1

EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM

January 2010

ICS 97.080

English Version

High pressure water jet machines - Safety requirements - Part 1:
Machines
Machines à jet d'eau à haute pression - Exigences de
sécurité - Partie 1: Machines

Hochdruck-Wasserstrahlmaschinen Sicherheitsanforderungen - Teil 1: Maschinen

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This European Standard was approved by CEN on 18 December 2009.
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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,

Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2010 CEN

All rights of exploitation in any form and by any means reserved
worldwide for CEN national Members.

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BS EN 1829-1:2010
EN 1829-1:2010 (E)

Contents
Foreword ......................................................................................................................................................4
1

Scope ...............................................................................................................................................6

2

Normative references .....................................................................................................................6

3

Terms and definitions ....................................................................................................................8

4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10

List of significant hazards ...........................................................................................................10
General ..........................................................................................................................................10
Hazards from the intended exit of water under high pressure ................................................ 10
Mechanical hazards ......................................................................................................................10
Hazards from transportation .......................................................................................................11
Electrical hazards .........................................................................................................................11
Thermal hazards ...........................................................................................................................11
Hazards due to noise ...................................................................................................................11
Hazards from program controlled high pressure water jet machines ....................................11

Hazards from sudden start-up ....................................................................................................11
Hazards from vibration ................................................................................................................11

5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11

Safety requirements and/or measures .......................................................................................11
General ..........................................................................................................................................11
Requirements for high pressure water jet machine with intended exit of water under
high pressure ................................................................................................................................12
Mechanical requirements ............................................................................................................12
Requirements for transport .........................................................................................................14
Electrical requirements ................................................................................................................15
Requirements for emergency stopping .....................................................................................15
Thermal requirements ..................................................................................................................15
Noise reduction ............................................................................................................................16
Requirements for vibration with hand-held spraying devices.................................................17
Requirements for program controlled water jet machines ......................................................17
Marking the control devices ........................................................................................................17

6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11

Verification of the safety requirements and/or measures ........................................................17
General ..........................................................................................................................................17
Hydrostatic pressure test ............................................................................................................17
Mechanical tests and/or visual inspection ................................................................................ 18
Transport devices .........................................................................................................................18
Electrical tests ..............................................................................................................................19
Testing of emergency stopping ..................................................................................................19
Thermal tests ................................................................................................................................19
Noise measurement .....................................................................................................................19
Vibration measurement................................................................................................................19
Testing of program controlled water jet machines ...................................................................19
Verification of markings...............................................................................................................19

7
7.1
7.2
7.3

Information for use .......................................................................................................................19
General ..........................................................................................................................................19
Marking and Warnings .................................................................................................................22
Additional Warnings .....................................................................................................................23

Annex A (normative) Noise test code ...................................................................................................... 25
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC ................................................................................. 27
Bibliography ...............................................................................................................................................28
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Introduction ..................................................................................................................................................5


BS EN 1829-1:2010
EN 1829-1:2010 (E)

Figures
Figure 1 — Spraying device with support – Principle ........................................................................... 13
Figure 2 — Spraying device – Recoil force and torque generation ..................................................... 14
Figure 3 — General warning sign according to ISO 7010:2003, W001 ................................................ 21
Figure 4 — Hazard symbol Dangerous Voltage according to ISO 7010:2003, W012 ......................... 21

Figure 5 — Attention ................................................................................................................................. 21
Figure 6 — Example of an additional warning (taken from EN 60335-2-79:2004) .............................. 24
Figure 7 — Hazard symbol Hot surfaces according to ISO 7010:2003, W017 .................................... 24 

Tables

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Table 1 — Maximum permitted temperatures for unprotected accessible surfaces on high pressure
water jet machines during normal operation .................................................................................. 16

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BS EN 1829-1:2010
EN 1829-1:2010 (E)

Foreword
This document (EN 1829-1:2010) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the
secretariat of which is held by AFNOR.
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 July 2010, and conflicting national standards shall be
withdrawn at the latest by July 2010.
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.

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
EN 1829, High-pressure water jet machines — Safety requirements, consists of the following parts:


Part 1: Machines



Part 2: Hoses, hose lines and connectors

Compliance with the clauses of Part 1 together with those of Part 2 of EN 1829 provides one means of
conforming with the essential health and safety requirements of the Directive concerned.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

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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).


BS EN 1829-1:2010
EN 1829-1:2010 (E)

Introduction
This European Standard is a type C standard as stated in EN ISO 12100-1.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered, are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.

5

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EN 1829-1:2010 (E)

1

Scope

This European Standard contains safety-related requirements for high pressure water jet machines with
drives of all kinds (e.g. electric motor, internal combustion engine, air and hydraulic) in which pumps are
used to generate pressure. This document deals with all significant hazards, hazardous situations and
events arising during assembly, erection, operation and servicing relevant to high pressure water jet
machines, when they are used as intended and under conditions of misuse which are reasonably
foreseeable by the manufacturer (see Clause 4). All references to high pressure water jet machines within
this document includes machines for one or more of the following industrial applications:


cleaning;



surface preparation;



material removal;



readjustment of concrete;



cutting.

This document applies to mobile and fixed high pressure water jet machines, in which the water pressure
is generated by a pressure generator/pump and in which the maximum allowable working pressure is
more than the upper limit fixed in the scope of EN 60335-2-79.
NOTE 1

35 MPa (350 bar) is currently the upper limit for machines covered by EN 60335-2-79.

NOTE 2
In general the machines in the scope will not be in the scope of the Pressure Equipment Directive
97/23/EC. In some cases, specific parts may be in the scope of that directive, but their application is not dealt with in
this document.

This document does not apply to high pressure cleaners which are dealt with in EN 60335-2-54 and
EN 60335-2-79.
NOTE 3
EN 60335-2-54 applies to steam cleaners for household use. EN 60335-2-79 applies to high pressure
cleaners having a rated pressure not less than 2,5 MPa and not exceeding 35 MPa, as well as steam cleaners and
those parts of hot water high pressure cleaners incorporating a steam stage which have a capacity not exceeding
100 l, a rated pressure not exceeding 2,5 MPa and a product of capacity and rated pressure not exceeding 5 MPa·l.

This document does not cover additional hazards due to the incorporation of high pressure water jet
machines into other process-technology machines.
This document does not cover specific hazards associated with explosive atmospheres, use on ships or
ambient temperatures outside the range 5 °C to 40 °C.
This document does not cover hazards associated with the drives or specific hazards due to any heat
generation function. However the hazards due to high temperatures of touchable surfaces are dealt with.
Any hazard due to the nature of liquids used for jetting, other than that due to pressure, is excluded from
the scope of this European Standard.
This document is not applicable to high pressure water jet machines which are manufactured before the
date of its publication as EN.

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.
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EN 1829-1:2010 (E)

EN 614-1, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general
principles
EN 809, Pumps and pump units for liquids — Common safety requirements
EN 953, Safety of machinery — Guards — General requirements for the design and construction of fixed
and movable guards
EN 981, Safety of machinery — System of auditory and visual danger and information signals

EN 1829-2, High-pressure water jet machines — Safety requirements — Part 2: Hoses, hose lines and
connectors

EN 12162, Liquid pumps — Safety requirements — Procedure for hydrostatic testing
EN 12723:2000, Liquid pumps — General terms for pumps and installations — Definitions, quantities,
letter symbols and units
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005, modified)
EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 61310-2, Safety of machinery — Indication, marking and actuation — Part 2: Requirements for
marking (IEC 61310-2:2007)
EN 60335-2-79:2004, Household and similar electrical appliances — Safety — Part 2-79: Particular
requirements
for
high
pressure
cleaners
and
steam
cleaners
(IEC 60335-2-79:2002, modified)
EN ISO 3743-1, Acoustics — Determination of sound power levels of noise sources — Engineering
method for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test
rooms (ISO 3743-1:1994)
EN ISO 3744, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
EN ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 11203:1995, Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions from the sound power
level (ISO 11203:1995)
EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1:
Basic terminology, methodology (ISO 12100-1:2003)

EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles (ISO 12100-2:2003)
EN ISO 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human
responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006)
EN ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (ISO 13849-1:2006)

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EN 1088, Safety of machinery — Interlocking devices associated with guards — Principles for design
and selection


BS EN 1829-1:2010
EN 1829-1:2010 (E)

EN ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper
and lower limbs (ISO 13857:2008)
ISO 7010:2003, Graphical symbols — Safety colours and safety signs — Safety signs used in
workplaces and public areas

3

Terms and definitions

For the purposes of this document, the definitions given in EN ISO 12100-1:2003, EN 12723:2000 and the
following apply.
3.1
high pressure water jet machine
machine with nozzle or other variable opening which allows water at high pressure together with any
additive (chemical and/or abrasive) to emerge as a free jet
NOTE
In general, high pressure water jet machines consist of a drive, a pressure generator, pipelines, hose
lines, spraying devices, safety devices, control and measurement devices.

3.2
program controlled high pressure water jet machine
machine characterised by spatial separation of the installation site of the pressure generator and the
workplace, by permanently installed high pressure lines between the installation site and one or more
workplaces having spraying devices incorporating start-up/shut-down of the system by means of external
switching mechanisms not activated by the operator of a spraying device
NOTE
In this context, the activation device of the spraying device is not considered to be a switching
mechanism.

3.3
drive
power unit consisting of electric motors, combustion engines, hydraulic motors, or air motors depending
on the application
3.4
pressure generator
unit to generate operating pressure and supply cleaning agent to the spraying device (e.g. pump,
intensifier)

3.5
high pressure line
pipeline or hose line in which the high pressure water is fed to the point of use
3.6
pipeline
pipe which is permanently fixed and operationally connected to pipe fittings or valves
3.7
hose
flexible, tubular semi-finished product consisting of several layers and inserts
NOTE

Hoses and hose lines are covered within part 2 of EN 1829.

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3.8
hose line
hose mounted with appropriate fittings
NOTE

Hoses and hose lines are covered within part 2 of EN 1829.

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EN 1829-1:2010 (E)

3.9
spraying device
3.9.1
general
spraying device consisting of the activation devices, the spraying pipe, extension pipe or nozzle pipe as
well as the nozzle.
NOTE
This also includes foot switches, foot valves with hose lines and spraying lances, spraying heads and
nozzle mounts

3.9.2
hand-held spraying device
spraying device of which the recoil force is to be absorbed by the person activating the spraying device
NOTE
The activation mechanism can be separated from the spraying device for operating reasons in the form of a
foot switch (e.g. for spraying lances).

3.9.3
mechanically operated spraying device
spraying device of which the recoil force is absorbed by a mechanical restraint
3.10
activation device
3.10.1
dry shut-off device
device for hand-held spraying devices by which the feed of liquid to the high pressure nozzle is actuated
by opening or shutting a valve
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NOTE

When shut no liquid exits the nozzle.

3.10.2
dump device
device for hand-held spraying devices where by opening or shutting of a valve the feed of liquid is directed
to a bypass pipe by which the generated pressure is limited by the means of the larger bypass nozzle
while the pipe to the high pressure nozzle is kept open
3.10.3
dump gun
hand-held spraying device in which the dump device is incorporated
3.11
safety device
device that automatically prevents any relevant critical parameter such as pressure or temperature being
exceeded
3.12
rated outlet pressure
pressure that occurs at the pressure generator for the volume flow and nozzle size specified by the
manufacturer
3.13
maximum allowable working pressure
pressure up to which the machine is functional and at which the machine may safely be run
3.14
operating temperature of the liquid
temperature of the liquid at any specified point

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EN 1829-1:2010 (E)

3.15
retooling
modification of the machines performance by using alternative components (e.g. replacement inserts and
alternative nozzles)
3.16
replacement inserts
changeable installation to a pressure generator, with pistons/plungers/seals/safety valves for different
diameters resulting in different displacements and pressures
3.17
pulsation damper
device to diminish the amplitude of pressure pulsations
3.18
test pressure
gauge pressure to which a part, component or pump is subjected for the purpose of strength or leak
testing

4

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3.19

cleaning agent
water with or without the addition of gaseous, soluble or miscible detergent or solid abrasive

List of significant hazards

4.1 General
This clause contains all the significant hazards, hazardous situations and events within the scope of this
European Standard, identified by risk assessment as significant for this type of machinery and which
require action to eliminate or reduce the risk.

4.2 Hazards from the intended exit of water under high pressure
The jet of water leaving the nozzle of a high pressure water jet machine is a hazard; by the abrasive
cutting effect, by intruding into objects or by swinging or deflecting the high pressure water jet nozzle and
hose.

4.3 Mechanical hazards
4.3.1

General

The components of a high pressure water jet machine together constitute a system under internal
pressure. Mechanical hazards can arise, for example, from uncontrolled escape of pressurised water –
except from the nozzle – due to pressure exceeding the working values or due to defects to pressureretaining parts.
4.3.2
4.3.2.1

Spraying devices
Hazards from hand-held spraying devices

In particular, there is a mechanical hazard associated with hand-held spraying devices due to the recoil

forces caused by the emerging water jet. Unintended or high frequency activation of the mechanism may
cause other hazards.

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EN 1829-1:2010 (E)

4.3.2.2

Hazards from mechanically held spraying devices

Hazards to the stability of mechanically held spraying devices can arise from the recoil of the emerging
water jet.
4.3.3

Hazards from mobile machines

In the case of mobile machines, there is a danger from unintended movement and their rolling away.

4.4 Hazards from transportation
Hazards during transportation can arise due to tipping over, shifting or falling.

4.5 Electrical hazards

Hazards can arise in particular due to contact of the water jet with electrical components.

4.6 Thermal hazards
Risk of burn or scald from contact with hot surfaces or emerging liquids.

4.7 Hazards due to noise
There is a risk to health from exposure to noise.
Exposure to noise may result in hearing loss, tinnitus and other physiological disorders.
Noise can increase the risk of accidents, as it may not be possible to hear warning signals or faults
occurring in machinery.

4.8 Hazards from program controlled high pressure water jet machines
Hazards can arise from the intended as well as from the unintended exit of the water jet or the movement
of machine parts.

4.9 Hazards from sudden start-up
Hazards can arise by the sudden start-up of the machine and the supply of pressure to the spraying
device.

4.10 Hazards from vibration
Hazards can arise from hand held spraying devices due to residual pulsation from the pressure generator.
NOTE
Hazards can occur from residual pressure in hose lines e.g. on a dry shut-off system, even when the
pressure generator is switched off. These hazards are dealt with in part 2 of EN 1829.

5

Safety requirements and/or measures

5.1 General

Machinery shall comply with the safety requirements and/or protective measures of this clause.
In addition, the machine shall be designed according to the principles in EN ISO 12100-2 for hazards
which are not dealt with by this document.

11

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EN 1829-1:2010 (E)

For the application of Type B standards (such as EN 614-1, EN 953, EN 981, EN 1088, EN 60204-1,
EN ISO 13732-1, EN ISO 13849-1, EN ISO 13857) the manufacturer shall carry out an adequate risk
assessment for the requirements thereof, where choice is necessary.
Pumps and pump units shall conform to EN 809.
If fixed guards are used, their fixing systems shall remain attached to the guards or to the machinery when
the guards are removed.

5.2 Requirements for high pressure water jet machine with intended exit of water under
high pressure
5.2.1

Replacement inserts

For pressure generators/pumps with replacement inserts, provisions shall be made to indicate the
mounted status in a clearly visible position.
5.2.2

Safety devices against exceeding the pressure

The machine shall have a safety device which prevents the maximum allowable working pressure from
being exceeded by more than 15 % or in the case of machines with pulsation dampers by more than
10 %. It shall not be possible to switch off this safety device and it shall be designed and positioned in
such a way that it cannot be made inoperative.
The adjustment of the safety device shall be secured such that unauthorised changes are deterred by
means such as a seal or tamperproof device. The water that escapes through a safety device shall be
capable of being drained in a safe manner. This may be executed by the use of a by-pass-system or
catch basin or compartment.
Safety devices shall be designed and positioned in such a way that persons cannot be injured by
escaping water or by broken pieces.
5.2.3

Pressure indicator

The machine shall have a pressure indicator which directly displays the actual operating pressure of the
liquid at the outlet of the pressure generator in megapascals (MPa) or bars (bar). The display shall be
readily visible to an operator and the maximum allowable working pressure shall be marked.
The pressure indicator shall be designed and positioned in such a way that, in case of leakage, persons
cannot be injured by the escaping water or by broken pieces.

5.3 Mechanical requirements
5.3.1

Common requirements

All parts of the pressure system shall be designed to withstand the maximum allowable working pressure
specified by the manufacturer. The test pressure shall be related by a factor to the maximum allowable
working pressure which is given in the manufacturer’s specification. In no case shall this factor be less
than 1,3.
5.3.2
5.3.2.1

Spraying devices
Common requirements for spraying devices

Spraying devices shall be able to withstand the impact and shock stresses which can be expected during
normal operation without displaying any leakage or limitation of the intended function.
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The activation mechanism shall be protected against unintended activation (e.g. by a guard).
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5.3.2.2

Hand-held spraying devices

When the activation mechanism is released one of the following shall occur:
a)

No more liquid shall emerge from the nozzle (dry shut-off).

b)

Any liquid emerging from the spraying device shall generate a reaction force no greater than the
weight of the spraying device.

c)

The pressure generator shall be switched off. The safety related parts of the control system shall
present a performance level of at least "c", defined in accordance with EN ISO 13849-1.

The release of the activation mechanism shall not be impaired or made impossible by recoil effects during
shutting-off. The holding force that has to be exerted manually on the activation mechanism of the
spraying device shall not exceed 60 N for the whole hand.
The activation mechanism shall be lockable in the OFF-position. This can be achieved e.g. by a knob,
hand lever or switch. There shall be no provision to lock the activation mechanism in the ON-position.

When several spraying devices are connected to the same pressure generator, the recoil forces exerted
on the other spraying devices shall not change abruptly by more than 15 % at any time that an operating
element of another spraying device is activated.
If the length of the spraying device is less than 75 cm, the activation mechanism shall be designed as a
two handed device such that the spraying device can only be run by simultaneous activation of both
activation devices, which shall be mounted in a way that makes activation by one hand impossible. The

Instruction Handbook shall include a warning of the increased hazards of using short spraying devices
(see 7.1). The spraying device shall be equipped with a support (see Figure 1) to which the recoil force is
completely or partially transferred if the recoil force is greater than 150 N in the longitudinal direction
(F cos α in Figure 2). This support shall fulfil basic requirements in regard to occupational safety and
health aspects as specified in EN 614-1. Radial recoil forces resulting from a nozzle at an angle α and a
distance l between the nozzle and holding position creating a torque T = F × sin α × l shall be
compensated for, e.g. by a compensating jet.

Key
1

support

Figure 1 — Spraying device with support – Principle

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The recoil forces exerted on the spraying device shall not exceed 250 N in the longitudinal direction. The
recoil forces shall not be released within a period shorter than 1 s to allow time for the operator to react.


BS EN 1829-1:2010
EN 1829-1:2010 (E)

Key
F

reaction force

α

angle

l

length

T

torque
Figure 2 — Spraying device – Recoil force and torque generation

5.3.2.3

Stability of mechanically held spraying devices

It shall be ensured that mechanically held spraying devices cannot tip over, lift up or move even due to the
recoil forces. This can be ensured e.g. by an adequate base area, weight or locking devices.
5.3.3
5.3.3.1

High pressure lines
Pipelines

Pipelines shall be suitable for the intended use. They shall fulfil the requirements of EN 12162 for
pressure testing and be designed to or protected in a way that a leakage cannot cause injuries e.g. for
locations where people are frequently present. This can be done e.g. by providing a casing and
information on residual risks (see Clause 7).
5.3.3.2

Hose lines

Hose lines shall be selected for the intended use in accordance with part 2 of EN 1829.
5.3.3.3

Nozzles

The manufacturer shall provide a facility on the machine to house nozzle details for the operator's
reference.
Requirements for mobile machines

Mobile machines fitted with their own running gear (chassis) shall meet the stability requirements of
EN 809.

5.4 Requirements for transport
The machine shall be designed to be capable of being transported (e.g. with suitable lifting eyes). Any
provisions for transport fitted to the machine shall be marked as such.
NOTE

In individual cases the most appropriate means may be agreed with the purchaser.

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5.3.4


BS EN 1829-1:2010
EN 1829-1:2010 (E)

5.5 Electrical requirements
Electrical equipment of the machine shall comply with EN 60204-1. A splash-proof design is required for
the electrical components of the machine in accordance with IPX3 of EN 60529. In the case of machines
powered by internal combustion engines, this requirement does not apply to those electrical components
that are exclusively needed for the operation of the combustion engine (e.g. starter motor, generator).
Electrical components of high pressure water jet machines in the operation area of the nozzles shall be
water-proof in accordance with IPX5 of EN 60529.
A drip-proof design of the electric components in accordance with IPX2 of EN 60529 is sufficient for
machines which are to be permanently installed in a separate room.
Safety related parts of the control system, in particular those concerning electric or electronic controls in
hand-held spraying devices, shall have an appropriate safety category defined in accordance with
EN ISO 13849-1.
Wireless controls shall comply with the requirements of EN 60204-1:2006, 9.2.7.

5.6 Requirements for emergency stopping
The machine shall be equipped with devices for emergency stop according to the specific hazards, based
on the risk assessment to be carried out by the manufacturer. In particular, the pump unit shall be

equipped with at least one emergency stop for the control device, which is fixed to the machine. This
emergency stop shall have a stop category 0 or 1, as defined in EN 60204-1.
This requirement does not apply to combustion engines driven machines where the risk assessment
carried out by the manufacturer shows that the emergency stop device would not lessen the risk, either
because it would not reduce the stopping time or because it would not enable the special measures
required to deal with the risk to be taken.

5.7 Thermal requirements
The parts of the machine, which can be touched during normal operation, shall not exceed the
temperature limits of touchable surfaces according to Table 1.
If the temperature limits given in Table 1 cannot be respected during normal operation, measures shall be
taken to reduce the risk of contacting such surfaces (e.g. by insulation). If this is not possible warnings for
the user/operator shall be given on the machine near the hazard.

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BS EN 1829-1:2010
EN 1829-1:2010 (E)

Table 1 — Maximum permitted temperatures for unprotected accessible surfaces on high pressure
water jet machines during normal operation
Contact time

0,5 sa

1 minb

8 h and longerc

o

T01 C

o

T01 C

T01 C

Uncoated metals

65

51

43

Coated metalsd

75

51

43

Ceramics, glass, stone

80

56

43

Plastics

85

60

43

Material

a

E.g. parts of the machine which are normally not contacted by an operator.

b

E.g. parts of the machine requiring short time repositioning (manipulation of the hoses, etc.).

c

Continuous contact by an operator (hand-held spraying device, etc.).

d

Thickness of the coating to be taken from EN ISO 13732-1.

o

5.8 Noise reduction
5.8.1

Noise reduction at source by design

Machinery must be designed and constructed in such a way that risks resulting from the emission of
airborne noise are reduced to the lowest level, taking account of technical progress and the availability of
means of reducing noise, in particular at source. When designing a machine the available information and
technical measures to control noise at source at the design stage shall be taken into account, see for
example EN ISO 11688-1.
NOTE

EN ISO 11688-2 provides useful information on noise generation mechanisms in machinery.

The success of the applied noise reduction measures is assessed on the basis of the actual noise
emission values in relation to other machines of the same type with comparable non-acoustical technical
data. The major sound sources of high pressure water jet machines are: pumps, drives and heaters.
Noise can be reduced by the following measures:


use of components and ancillaries with the lowest possible noise emission;



isolation of structure borne noise or impact sound of power units;



control cabin providing sound insulation.

5.8.2

Noise reduction by protective measures

According to the results of the noise measurement made in accordance with Annex A of this European
Standard the high pressure water jet machine shall be equipped with a suitable device to reduce the noise
emission, if applicable. These devices may be casings, enclosures, silencers, or screens fitted to the
machine.
5.8.3

Noise reduction by information

The Instruction Handbook shall inform about residual risks regarding noise due to the operation of a high
pressure water jet machine (see 7.1).
16

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EN 1829-1:2010 (E)

5.9 Requirements for vibration with hand-held spraying devices
Machine design shall ensure a vibration emission level at the spraying device as low as reasonably
achievable.

5.10 Requirements for program controlled water jet machines
Program controlled water jet machines where the jet is activated and stopped without direct operator
intervention shall be protected by safety devices e.g. by the use of enclosures, interlocking guards, etc. so
that a person cannot come into the danger zone in accordance with EN 953, EN 981, EN 1088,
EN ISO 13857. The danger zone includes all the space the high pressure water jet can reach.
If the manufacturer is not supplying the safety devices for the danger zone he shall give appropriate
information about their installation in the Instruction Handbook (see 7.1).

5.11 Marking the control devices
Manually activated control devices such as push buttons, selection switches, etc. shall be marked with
their function, either on or directly next to the operating element. Preferably, internationally standardised
graphic symbols (pictograms) should be used. (See ISO 7010, EN 60204-1, and EN 61310-2.)

6

Verification of the safety requirements and/or measures

6.1 General
The entire high pressure water jet machine shall be subjected to a successful functional test at the
maximum power available and with the nozzle that produces the maximum allowable working pressure.

Particular attention shall be paid to:


the correct functioning of the controls and pressure indicator;



operation within the maximum allowable working pressure;



the absence of leaks.

Failure to meet these criteria will constitute a failure of the test.
The correct selection of hose lines and spraying devices shall be verified by inspection. All labelled
maximum allowable working pressures shall be the same as or greater than the maximum allowable
working pressures of the pressure generator.

6.2 Hydrostatic pressure test
A hydrostatic pressure test shall be carried out with a test pressure as defined in 5.3.1 (this can be
generated by the machines pressure generator when the drive power is sufficient). The hydrostatic
pressure test shall be carried out in accordance with EN 12162. Furthermore the pressure relief device
would either have to be removed or reset when the test in the previous paragraph is carried out.
6.2.1

Testing of safety devices for preventing excessive pressure

6.2.1.1

Re-seatable safety devices

The function of the safety device shall pass the following inspections and tests:


before starting the pressure test, verification of the device with the construction/design documents
shall be made;
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EN 1829-1:2010 (E)



visual inspection to verify that the tamper-proof seal at the pressure setting adjuster is undamaged;



the operating pressure shall be raised until the device operates. The pressure at which the device
operates shall not exceed the values given in 5.2.2. The water used in the test shall be clean to avoid
contamination of the valve seating that could cause subsequent leakage.

6.2.1.2

Non re-seatable safety devices

The device shall be checked by visual inspection to ensure conformance with the data in the Instruction
Handbook.
6.2.2

Pressure indicator

The pressure indicator shall be checked during the functional test according to 6.1 as follows:
a)

check whether the display is able to function;

b)

visually check the proper positioning of the pressure indicator according to 5.2.3.

6.2.3

Hydrostatic pressure test of spraying devices

Spraying devices shall be exposed to a static pressure test of 1,5 times the maximum allowable working
pressure for a period of at least 30 s.

6.3 Mechanical tests and/or visual inspection
6.3.1

General

Before the start of the test, the spraying device shall be examined to identify leaks and the connection
lines shall be vented.
Spraying devices shall also be subjected to a function test at the maximum allowable working pressure.
6.3.1.1

Testing of manually operated spraying devices

The minimum length and the recoil force shall be measured in accordance with 5.3.2. The activating
mechanism shall be verified by functional test and visual inspection in accordance with 5.3.2.
6.3.1.2

Testing the stability of mechanically operated spraying devices

The stability of mechanically held spraying devices shall be tested at the highest foreseeable recoil force
of any permitted nozzle and/or insert as specified by the manufacturer in accordance with 5.3.2.2.
6.3.1.3

Testing of hose-lines

See part 2 of EN 1829.
6.3.2

Testing the stability of the high pressure water jet machine

The stability against tipping shall be proven for an un-intended change of position e.g. by an appropriate
function test or by calculation in accordance with EN 809.

6.4 Transport devices
The existence of transport devices shall be proven by visual inspection.

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