SIST EN 12198-3:2003+A1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varnost strojev - Ocenjevanje in zmanjševanje nevarnosti sevanj, ki jih oddajajo stroji - 3. del: Zmanjševanje sevanja s filtriranjem ali zaslanjanjemSicherheit von Maschinen - Bewertung und Verminderung des Risikos der von Maschinen emittierten Strahlung - Teil 3: Verminderung der Strahlung durch Abschwächung oder AbschirmungSécurité des machines - Estimation et réduction des risques engendrés par les rayonnements émis par les machines - Partie 3: Réduction du rayonnement par atténuation ou par écransSafety of machinery - Assessment and reduction of risks arising from radiation emitted by machinery - Part 3: Reduction of radiation by attenuation or screening13.280Varstvo pred sevanjemRadiation protection13.110Varnost strojevSafety of machineryICS:Ta slovenski standard je istoveten z:EN 12198-3:2002+A1:2008SIST EN 12198-3:2003+A1:2008en,fr,de01-november-2008SIST EN 12198-3:2003+A1:2008SLOVENSKI
STANDARD



SIST EN 12198-3:2003+A1:2008



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12198-3:2002+A1
August 2008 ICS 13.110; 13.280 Supersedes EN 12198-3:2002 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 risques engendrés par les rayonnements émis par les machines - Partie 3: Réduction du rayonnement par atténuation ou par écrans
Sicherheit von Maschinen - Bewertung und Verminderung des Risikos der von Maschinen emittierten Strahlung - Teil 3: Verminderung der Strahlung durch Abschwächung oder Abschirmung This European Standard was approved by CEN on 16 October 2002 and includes Amendment 1 approved by CEN on 18 July 2008.
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, 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: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12198-3:2002+A1:2008: ESIST EN 12198-3:2003+A1:2008



EN 12198-3:2002+A1:2008 (E) 2 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 between this European Standard and the Essential Requirements of EU Directive 98/37/EC"""".12 Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""".13
SIST EN 12198-3:2003+A1:2008



EN 12198-3:2002+A1:2008 (E) 3 Foreword This document (EN 12198-3:2002+A1:2008) 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 February 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document supersedes EN 12198-3:2002. This document includes Amendment 1, approved by CEN on 2008-07-18. The start and finish of text introduced or altered by amendment is indicated in the text by tags !". 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 Directive(s), see informative Annexes ZA and ZB, which are integral parts 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, 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 the United Kingdom. SIST EN 12198-3:2003+A1:2008



EN 12198-3:2002+A1:2008 (E) 4 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. SIST EN 12198-3:2003+A1:2008



EN 12198-3:2002+A1:2008 (E) 5 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).
SIST EN 12198-3:2003+A1:2008



EN 12198-3:2002+A1:2008 (E) 6 5 Procedure for reducing radiation emission levels by design The procedure for reducing radiation by attenuation or screening shall include the following steps: 1) Specify the design target according to 7.2 of EN 12198-1:2000, by defining a radiation emission level not to be exceeded, lowest possible. 2) Characterize all the radiation sources (see clause 4 and 6.2 of EN 12198-1:2000). 3) Define intended directions, intensity of radiation fields and access to the irradiated area. 4) Review attenuating or screening materials available
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