CEN CLC TR 16832-2015 Selection use care and maintenance of personal protective equipment for preventing electrostatic risks in hazardous areas (explosion risks).pdf

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1、Selection, use, care andmaintenance of personalprotective equipment forpreventing electrostatic risksin hazardous areas (explosionrisks)PD CEN/CLC/TR 16832:2015Incorporating corrigendum March 2017BSI Standards PublicationPD CEN/CLC/TR 16832:2015 PUBLISHED DOCUMENTNational forewordThis Published Docu

2、ment is the UK implementation of CEN/CLC/TR 16832:2015.The UK participation in its preparation was entrusted to Technical Committee GEL/101, Electrostatics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include a

3、ll the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 97674 2ICS 13.340.01Compliance with a British Standard cannot confer immunity from legal obligations.This Britis

4、h Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate Text affected31 March 2017 Implementation of CEN Correction Notice 29 April 2015: Standard reference “CEN/TR 16832:2015” corrected as “CEN/C

5、LC/TR 16832:2015” in the headers and in the 1st paragraph of the Foreword.TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/CLC/TR 16832 April 2015 ICS 13.340.01 English version Selection, use, care and maintenance of personal protective equipment for preventing electrostatic risks in hazar

6、dous areas (explosion risks) This Technical Report was approved by CEN on 21 March 2015. It has been drawn up by the Technical Committee CEN/CLC/JWG 7. CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, C

7、zech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

8、 CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN/CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. CEN/CLC/TR 16832:2015 ECEN/CLC/TR 16832:2015 (E) 2 Contents Page Foreword 4 Introdu

9、ction . 5 1 Scope 6 2 Normative references 6 3 Term and definitions . 7 4 Selection . 12 4.1 General 12 4.2 Risk assessment 15 4.2.1 Explosive atmospheres. 15 4.2.2 Explosives and pyrotechnic articles . 17 4.3 Selection of electrostatic dissipative protective clothing . 18 4.4 Selection of gloves 19

10、 4.5 Selection of footwear and leg protection 19 4.6 Selection of other items of PPE . 20 4.6.1 General 20 4.6.2 Selection of head protection 20 4.6.3 Selection of hearing protection 21 4.6.4 Selection of eye and face protection . 21 4.6.5 Selection of respiratory protection 21 4.6.6 Selection of ha

11、nd and arm protection other than gloves 21 4.6.7 Selection of protection against falls from a height including working belts 21 4.6.8 Buoyance aids and personal floatation devices 22 4.7 Marking . 22 5 Use 22 5.1 Earthing and equipotential bonding 22 5.1.1 General 22 5.1.2 Resistance to earth limits

12、 . 23 5.1.3 Earthing personnel 24 5.1.4 Earthing PPE 25 5.1.5 Verifying resistance to earth 26 5.2 Instructions for use . 27 5.2.1 Use of electrostatic dissipative protective clothing and general instructions . 27 5.2.2 Use of gloves and hand and arm protection. 28 5.2.3 Use of footwear and leg prot

13、ection . 28 5.2.4 Use of head protection, eye and face protection, hearing protection and respiratory protection . 28 5.2.5 Use of protection against falls from a height . 28 5.2.6 Use of personal floatation devices 29 6 Care . 29 6.1 Care of electrostatic dissipative protective clothing . 29 6.1.1

14、General 29 6.1.2 Storage 29 6.1.3 Cleaning 29 6.2 Care of footwear and leg protection 30 6.2.1 General 30 6.2.2 Storage 30 6.2.3 Cleaning 30 6.3 Care of other items of PPE . 30 PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/TR 16832:2015 (E) 3 6.3.1 General . 30 6.3.2 Storage . 30 6.3.3 Cl

15、eaning 31 7 Maintenance . 31 7.1 Visual inspection . 31 7.2 Testing 31 7.3 Repair 31 8 Disposal 31 Annex A (informative) Introduction to electrostatics and electrostatic hazards 32 A.1 How static electricity is generated 32 A.2 Flammable atmospheres and minimum ignition energy . 33 A.3 Electrostatic

16、 discharges . 34 A.3.1 Types of electrostatic discharge . 34 A.3.2 Spark discharges from charged conductors 34 A.3.3 The capacitance of conductive objects and ignition risk . 34 A.3.4 Brush discharges from insulating surface . 35 A.4 How to avoid electrostatic ignitions 35 A.4.1 General . 35 A.4.2 R

17、estriction of area of insulating materials 36 A.4.3 Earthing conductive objects 36 A.4.4 Methods of making electrostatic dissipative protective clothing 37 Annex B (informative) Classification of hazardous areas and zones 39 Annex C (informative) Questions and Answers . 41 C.1 Introduction 41 C.2 Ge

18、neral questions and answers 41 C.3 Questions and answers relating to selection . 41 C.4 Questions and answers relating to use 48 C.5 Questions and answers relating to care . 50 Bibliography 51 PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/TR 16832:2015 (E) 4 Foreword This document (CEN/CL

19、C/TR 16832:2015) has been prepared by Technical Committee CEN/CLC/JWG 7 “PPE against electrostatic risks”, the secretariat of which is held by NEN. 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 he

20、ld responsible for identifying any or all such patent rights. PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/TR 16832:2015 (E) 5 Introduction European Standards for personal protective equipment (PPE) are developed to ensure compliance with the European Directive 89/686/EEC. Since the prim

21、ary aim of this directive is to guarantee a free market in the European Union, these standards are made to meet the needs for a common set of safety requirements and test methods. The actual use of PPE is not covered by this directive, nor by related standards. This Technical Report has been develop

22、ed to meet the needs for a document on selection, use, care and maintenance. Regulations on health and safety are based on Directive 89/686/EEC, giving minimum requirements on the selection and use of PPE in the workplace. EU Member States may impose more stringent requirements and may define exposu

23、re limits. The information in this Technical Report has been produced to assist employers in making the necessary decisions regarding the selection, use, care and maintenance of PPE. The guidance given may also be useful for other parties such as suppliers of PPE or services, inspection agencies, in

24、surance companies, etc. The purpose of this Technical Report is to highlight the main areas that an employer needs to consider. This Technical Report may serve as guidance and as a checklist when a company is preparing its own management system or programme for PPE. PD CEN/CLC/TR 16832:2015CEN/CLC/T

25、R 16832:2015 (E)CEN/CLC/TR 16832:2015 (E) 6 1 Scope This Technical Report sets out guidance for the selection, use, care and maintenance of clothing and related items of personal protective equipment designed to prevent hazards caused by static electricity in hazardous areas. Static electricity shou

26、ld not be confused with mains supply electricity, or other forms of electric current; the requirements for protection against static electricity are different to the requirements for protection against hazards associated with electric current. Protection against electrostatic risks should not be con

27、fused with protection against electric arc; the former is concerned with electrical properties and the latter is concerned with heat, flame and projectile protection. Directive 89/686/EEC requires that PPE intended for use in explosive atmospheres must be so designed and manufactured that it cannot

28、be the source of an electric, electrostatic or impact-induced arc or spark likely to cause an explosive mixture to ignite. Whereas this Technical Report addresses electrostatic ignition risks, it does not address other possible sources of ignition. Nevertheless, other possible sources of ignition ar

29、e required to be considered when certifying PPE to the requirements of Directive 89/686/EEC. NOTE EN 134631 gives guidance on assessing possible ignition sources in non-electrical equipment that may be used for some items of PPE. 2 Normative references The following documents, in whole or in part, a

30、re normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1081, Resilient floor coverings Determination of th

31、e electrical resistance EN 1149-1, Protective clothing Electrostatic properties Part 1: Test method for measurement of surface resistivity EN 1149-2, Protective clothing Electrostatic properties Part 2: Test method for measurement of the electrical resistance through a material (vertical resistance)

32、 EN 1149-3, Protective clothing Electrostatic properties Part 3: Test methods for measurement of charge decay EN 1149-5, Protective clothing Electrostatic properties Part 5: Material performance and design requirements CEN/TR 15321:2006, Guidelines on the selection, use, care and maintenance of prot

33、ective clothing EN 16350, Protective gloves Electrostatic properties EN 60079-10-1, Explosive atmospheres Part 10-1: Classification of areas Explosive gas atmospheres (IEC 60079-10-1) EN 60079-10-2, Explosive atmospheres Classification of areas Combustible dust atmospheres (IEC 60079-10-2) CLC/TR 60

34、079-32-1:2015, Explosive atmospheres Part 32-1: Electrostatic hazards, Guidance (IEC/TS 60079-32-1:2013) EN 60079-32-2:2015, Explosive atmospheres Part 32-2: Electrostatics hazards Tests (under consideration) (IEC 60079-32-2:2015) PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/TR 16832:201

35、5 (E) 7 EN 61340-4-1, Electrostatics Part 4-1: Standard test methods for specific applications Electrical resistance of floor coverings and installed floors (IEC 61340-4-1) EN 61340-4-3, Electrostatics Part 4-3: Standard test methods for specific applications Footwear (IEC 61340-4-3) EN 61340-4-5, E

36、lectrostatics Part 4-5: Standard test methods for specific applications Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person (IEC 61340-4-5) EN ISO 11611, Protective clothing for use in welding and allied processes (ISO 11611) EN ISO 13688, Pr

37、otective clothing General requirements (ISO 13688) CEN ISO/TR 18690, Guidance for the selection, use and maintenance of safety and occupational footwear and other personal protective equipment offering foot and leg protection (ISO/TR 18690) EN ISO 20344, Personal protective equipment Test methods fo

38、r footwear (ISO 20344) EN ISO 20345, Personal protective equipment Safety footwear (ISO 20345) EN ISO 20346, Personal protective equipment Protective footwear (ISO 20346) EN ISO 20347, Personal protective equipment Occupational footwear (ISO 20347) ISO 7000, Graphical symbols for use on equipment Re

39、gistered symbols ISO 10965, Textile floor coverings Determination of electrical resistance 3 Term and definitions For the purposes of this document, the following terms and definitions apply. 3.1 hazard situation which can be the cause of harm or damage to the health of the human body SOURCE: CEN/TR

40、 15321:2006, 2.1 Note 1 to entry: The effects of static electricity can be a nuisance. Electrostatic attraction of dirt and electrostatic shocks to personnel, for example, are not directly harmful, but they are nonetheless undesirable. Nuisance effects may cause hazards indirectly. For example, a pe

41、rson working on a ladder may fall off the ladder because of an involuntary reflex after receiving an electrostatic shock. If nuisance shocks are felt, it is an indication that there is an electrostatic ignition risk, if the person concerned is in a hazardous area. 3.2 risk combination of the frequen

42、cy, or probability, of occurrence and the consequence of a specified hazardous event SOURCE: CEN/TR 15321:2006, 2.2 3.3 selection process of determining the type of protective equipment (garments) that is necessary for the required protection PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/

43、TR 16832:2015 (E) 8 SOURCE: CEN/TR 15321:2006, 2.3 3.4 use application of protective clothing including its limitations SOURCE: CEN/TR 15321:2006, 2.4 3.5 care to keep in good working order, including procedures for cleaning, decontamination and storage SOURCE: CEN/TR 15321:2006, 2.5 3.6 maintenance

44、 to preserve from loss or deterioration, to include procedures for inspection, repair and ultimate removal from service SOURCE: CEN/TR 15321:2006, 2.6 3.7 explosive atmosphere mixture with air, under atmospheric conditions, of flammable substances in the form of gas, vapour, dust, fibres, or flyings

45、 which, after ignition, permits self-sustaining propagation SOURCE: IEV 426-01-06 3.8 hazardous area area in which an explosive material, pyrotechnic article or explosive atmosphere is present, or may be expected to be present, in quantities such as to require special precautions for construction an

46、d use of personal protective equipment SOURCE: IEV 426-03-01, modified The definition has been modified and the original Notes to the definition are not reproduced here. 3.9 hazardous zone hazardous area classified based on the frequency of the occurrence and duration of an explosive atmosphere Note

47、 1 to entry: See Annex B. 3.10 electricity set of the phenomena associated with electric charges and electric currents SOURCE: IEV 121-11-76 3.11 electric current electric charges that continuously move through a conductor under the influence of a potential gradient 3.12 electric field electrostatic

48、 field vector field that surrounds electric charge PD CEN/CLC/TR 16832:2015CEN/CLC/TR 16832:2015 (E)CEN/CLC/TR 16832:2015 (E) 9 3.13 electric induction electrostatic induction phenomenon in which the electric charge distribution in a body is modified by an electric field SOURCE: IEV 121-11-68 3.14 s

49、tatic electricity accumulation of electric charge on an object or surface 3.15 electrostatic associated with static electricity 3.16 electrostatic discharge ESD transfer of electric charge between bodies of different electrostatic potential in proximity or through direct contact SOURCE: IEV 161-01-22, modified “Electric“ is here replaced with “electrostatic“ and the original Note to the definition is not reproduced here. 3.17 brush discharge type of electrostatic discharge that occurs when rounded (as opp