Safety of machinery - Assessment and reduction of risks arising from radiation emitted by machinery - Part 3: Reduction of radiation by attenuation or screening

The purpose of this European Standard is to provide means to enable manufacturers of machinery concerned by a radiation hazard to design and manufacture efficient safeguards against radiations. The first three techniques given in clause 0 (a, b and c) are not covered by the present Part 3 of this standard. It will only deal with a design strategy for reducing the radiation flux by attenuation or screening. Specific technical details of the design of shields design for the different types of radiation and machines will be provided in other standards. ThisEuropean standard applies to machinery as defined in EN 292.

Sicherheit von Maschinen - Bewertung und Verminderung des Risikos der von Maschinen emittierten Strahlung - Teil 3: Verminderung der Strahlung durch Abschwächung oder Abschirmung

Der Zweck der vorliegenden Europäischen Norm ist, Mittel anzugeben, die Hersteller von Maschinen, von denen eine Strahlengefahr ausgeht, in die Lage versetzen, gegen Strahlungen wirksame Schutzeinrichtungen zu konstruieren und herzustellen.
Spezielle technische Einzelheiten zur Konstruktion von Schirmungen gegen die verschiedenen Arten von  Strahlung und für besondere Maschinentypen sind in anderen Normen enthalten.
Die vorliegende Europäische Norm gilt für Maschinen, wie sie in EN 292 definiert sind.
Teil 1 der vorliegenden Norm enthält die allgemeinen Leitsätze der Risikobewertung der Strahlenemission von Maschinen. Einzelheiten zur Messung der Strahlenemission sind im Teil 2 der vorliegenden Norm angegeben.
Die vorliegende Norm behandelt eine Konstruktionsstrategie zur Reduzierung des Strahlungsflusses durch Abschwächung oder Abschirmung.

Sécurité des machines - Estimation et réduction des risques engendrés par les rayonnements émis par les machines - Partie 3: Réduction du rayonnement par atténuation ou par écrans

la présente Norme européenne est destinée à fournir aux constructeurs de machines concernées par le risque de rayonnement les moyens de conception et de réalisation de protections efficaces contre les rayonnements.
Les détails techniques spécifiques relatifs à la conception des écrans pour les différents type de rayonnement et de machine seront donnés dans d'autres normes.
La présente Norme européenne s'applique aux machines telles que définies dans l'EN 292.
La partie 1 de la présente norme contient les principes généraux d'analyse de risque pour les rayonnements émis par une machine. Les détails relatifs aux mesures des rayonnements émis sont donnés dans la partie 2 de la présente norme.
La présente norme donne des prescriptions pour réduire le flux de rayonnements par atténuation ou par protection.

Varnost strojev - Ocenjevanje in zmanjševanje nevarnosti sevanja, ki ga oddajajo stroji - 3. del: Zmanjševanje sevanja s filtriranjem ali zaslanjanjem

General Information

Status
Withdrawn
Publication Date
19-Nov-2002
Withdrawal Date
26-Aug-2008
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
27-Aug-2008
Completion Date
27-Aug-2008

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SLOVENSKI STANDARD
SIST EN 12198-3:2003
01-julij-2003
Varnost strojev - Ocenjevanje in zmanjševanje nevarnosti sevanja, ki ga oddajajo
stroji - 3. del: Zmanjševanje sevanja s filtriranjem ali zaslanjanjem

Safety of machinery - Assessment and reduction of risks arising from radiation emitted

by machinery - Part 3: Reduction of radiation by attenuation or screening
Sicherheit von Maschinen - Bewertung und Verminderung des Risikos der von
Maschinen emittierten Strahlung - Teil 3: Verminderung der Strahlung durch
Abschwächung oder Abschirmung
Sécurité des machines - Estimation et réduction des risques engendrés par les
rayonnements émis par les machines - Partie 3: Réduction du rayonnement par
atténuation ou par écrans
Ta slovenski standard je istoveten z: EN 12198-3:2002
ICS:
13.110 Varnost strojev Safety of machinery
13.280 Varstvo pred sevanjem Radiation protection
SIST EN 12198-3:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 12198-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2002
ICS 13.110; 13.280
English version
Safety of machinery - Assessment and reduction of risks arising
from radiation emitted by machinery - Part 3: Reduction of
radiation by attenuation or screening

Sécurité des machines - Estimation et réduction des Sicherheit von Maschinen - Bewertung und Verminderung

risques engendrés par les rayonnements émis par les des Risikos der von Maschinen emittierten Strahlung - Teil

machines - Partie 3: Réduction du rayonnement par 3: Verminderung der Strahlung durch Abschwächung oder

atténuation ou par écrans Abschirmung
This European Standard was approved by CEN on 16 October 2002.

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 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 Management Centre has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,

Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12198-3:2002 E

worldwide for CEN national Members.
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EN 12198-3:2002 (E)
Contents

Foreword......................................................................................................................................................................3

Introduction .................................................................................................................................................................4

1 Scope ..............................................................................................................................................................4

2 Normative references ....................................................................................................................................4

3 Terms and definitions....................................................................................................................................5

4 Classification of radiation.............................................................................................................................5

5 Procedure for reducing radiation emission levels by design ...................................................................6

6 Strategy for design of shield ........................................................................................................................6

6.1 Design target ..................................................................................................................................................6

6.2 Characterization of all the radiation sources..............................................................................................7

6.3 Radiation fields, beam geometry access and enclosure...........................................................................7

6.4 Review available of attenuating material.....................................................................................................8

6.5 Assess of environmental conditions ...........................................................................................................9

6.6 Design requirements .....................................................................................................................................9

6.7 Manufacture prototype ................................................................................................................................11

6.8 Determination of the effectiveness of the shielding ................................................................................11

6.9 Compare with desired levels set in step 1 and if necessary, modify design ........................................11

6.10 Prepare documentation for users ..............................................................................................................11

Annex ZA (informative) Relationship of this document with EC Directives........................................................12

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EN 12198-3:2002 (E)
Foreword

This document EN 12198-3:2002 has been prepared by 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 May 2003, and conflicting national standards shall be withdrawn at the latest by

May 2003.

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 EC Directive(s).

For relationship with EC Directives, see informative annex ZA, which is an integral part of this document.

This European Standard deals with the essential requirement "Radiation" (see EN 292-2:1991, annex A,

paragraph 1.5.10).

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland,

France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,

Sweden, Switzerland and the United Kingdom.
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EN 12198-3:2002 (E)
Introduction

Machinery supplied by electrical power or containing radiation sources may emit radiation or generate electric

and/or magnetic fields. The radiation emissions will vary in frequency and magnitude.

It does not deal with other strategies concerning reduction of radiation risk by substitution with a smaller source,

increasing the distance or reducing exposure time.
This document is a type B standard as stated in EN 1070.

The provisions of this document may be supplemented or modified by a type C standard.

NOTE For machines which are covered by the scope of a type C standard and which have been designed and built

according to the provisions of that standard, the provisions of that type C standard take precedence over the provisions of this

type B standard.
1 Scope

The purpose of this European standard is to provide means to enable manufacturers of machinery concerned by a

radiation hazard to design and manufacture efficient safeguards against radiations.

Specific technical details of the design of shields for the different types of radiation and machines will be provided

in other standards.
This European standard applies to machinery as defined by EN 292.

Part 1 of this standard contains the general principles of risk assessment of radiation emission by machinery.

Details of the measurement of the radiation emission are given in Part 2 of this standard.

This standard deals with a design strategy for reducing the radiation flux by attenuation or screening.

2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications. These

normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For

dated references, subsequent amendments to or revisions of any of these publications apply to this European

Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the

publication referred to applies (including amendments).

EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology,

methodology.

EN 292-2:1991, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical

principles and specifications.

EN 294:1992, Safety of machinery - Safety distance to prevent danger zones being reached by the upper limbs.

EN 953:1997, Safety of machinery – Guards - General requirements for the design and construction of fixed and

movable guards.
EN 1050:1996, Safety of machinery - Principles for risk assessment.
EN 1070:1998, Safety of machinery – Terminology.
---------------------- Page: 5 ----------------------
EN 12198-3:2002 (E)

EN 1088:1995, Safety of machinery - Interlocking devices associated with guards - Principles for design and

selection.

EN 12198-1:2000, Safety of machinery – Assessment and reduction of risks arising from radiation emitted by

machinery – Part 1: General principles.

EN 12198-2:2002, Safety of machinery – Assessment and reduction of risks arising from radiation emitted by

machinery – Part 2 : Radiation emission measurement procedure.

IEC 60050-111:1996, International Electrotechnical Vocabulary - Chapter 111: Physics and chemistry.

IEC 60050-121:1998, International Electrotechnical Vocabulary - Part 121: Electromagnetism.

IEC 60050-161:1990, International Electrotechnical Vocabulary - Chapter 161: Electromagnetic compatibility.

IEC 60050-881:1983, International Electrotechnical Vocabulary – Chapter 881 : Radiology and radiological physics.

3 Terms and definitions

For the purposes of this European Standard, the terms and definitions given in EN 1070:1998 and the following

apply. Additional definitions specifically needed for this standard are contained in EN 12198-1:2000.

The terms and definitions given in IEC 60050-111:1996, IEC 60050-121:1998, IEC 60050-161:1990 and IEC

60050-881:1983, are also applicable.
3.1
shield (general definition)

component designed to reduce, select or absorb radiations. The purpose of the component may be for radiation

protection or in order to select particular radiations
NOTE Shields are also know as attenuators, screens or filters .
3.2
protection shield
shield used for the radiation protection of people and/or equipment
3.3
selective shield
shield used to filter the radiations, selecting their kind or their energy
3.4
shadow shield

shield arranged in such a way that the radiation source is not totally enclosed, but which prevents free passage of

radiation in certain directions
4 Classification of radiation
Classification of radiation is given in clause 4 of EN 12198-1:2000.

Machinery shall be so designed and constructed that any emission of radiation is limited to the extent necessary for

its operation and that the effects on exposed persons are non-existent or reduced to non-dangerous proportions

(See EN 292-2:1991, annex A).
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EN 12198-3:2002 (E)
5 Procedure for reducing radiation emission levels by design
The pr
...

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