IEC 60825-4:2006
(Main)Safety of laser products - Part 4: Laser guards
Safety of laser products - Part 4: Laser guards
Specifies the requirements for laser guards, permanent and temporary (for example for service), that enclose the process zone of a laser processing machine, and specifications for proprietary laser guards. This standard applies to all component parts of a guard including clear (visibly transmitting) screens and viewing windows, panels, laser curtains and walls. Requirements for beam path components, beam stops and those other parts of a protective housing of a laser product which do not enclose the process zone are contained in IEC 60825-1. In addition this part of IEC 60825 indicates: a) how to assess and specify the protective properties of a laser guard; and b) how to select a laser guard.
Sécurité des appareils à laser - Partie 4: Protecteurs pour lasers
Spécifie les exigences pour les protecteurs pour lasers, permanents et temporaires (par exemple pour l'entretien), qui protègent la zone de traitement d'une machine à laser, ainsi que les spécifications pour les protecteurs d'origine pour lasers. La présente norme s'applique à tous les composants d'un protecteur, y compris les écrans clairs (visiblement transmetteurs) et les fenêtres d'observation, les panneaux, les rideaux pour lasers et les parois. Les exigences pour les composants du trajet du faisceau, les dispositifs d'arrêt du faisceau et les autres parties d'un capot de protection d'un appareil à laser qui ne protègent pas la zone de traitement sont contenues dans la CEI 60825-1. De plus, la présente partie de la CEI 60825 indique: a) comment évaluer et spécifier les propriétés de protection d'un protecteur pour lasers; et b) comment sélectionner un protecteur pour lasers.
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Sécurité des appareils à laser –
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CEI/IEC 60825-4:2006
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– 2 – 60825-4 CEI:2006
SOMMAIRE
AVANT-PROPOS .8
INTRODUCTION.12
1 Domaine d’application.14
2 Références normatives .14
3 Définitions .14
4 Machines de traitement à laser .18
4.1 Exigences de conception .18
4.2 Exigences de performance .20
4.3 Validation .20
4.4 Guide de l’utilisateur .22
5 Protecteur d'origine pour laser .22
5.1 Exigences de conception .22
5.2 Exigences de performances.22
5.3 Exigences de spécification.22
5.4 Exigences d'essai.24
5.5 Exigences d’étiquetage.24
5.6 Guide de l’utilisateur .26
Annexe A (informative) Guide général sur la conception et la sélection des protecteurs
pour laser .28
Annexe B (informative) Evaluation de la limite prévisible d’exposition (LPE).32
Annexe C (informative) Elaboration des termes définis .46
Annexe D (normative) Essais des protecteurs d'origine pour laser .50
Annexe E (informative) Lignes directrices pour le montage et l'installation des
protecteurs pour lasers .54
Annexe F (informative) Lignes directrices pour l’évaluation de l’aptitude des
protecteurs pour lasers .74
Bibliographie . 132
Figure B.1 – Calcul des réflexions diffuses .34
Figure B.2 – Calcul des réflexions spéculaires.34
Figure B.3 – Quelques exemples de conditions de défauts prévisibles .36
Figure B.4 – Quatre exemples de faisceaux laser erratiques susceptibles d’avoir à être
contenus par un protecteur temporaire dans des conditions d’entretien.38
Figure B.5 – Illustration de l’exposition du protecteur pour lasers au cours du
fonctionnement répétitif de la machine .40
Figure B.6 – Deux exemples de durée d’exposition évaluée.42
Figure B.7 – Durée d’exposition évaluée pour une machine sans aucun contrôle de
sécurité.44
Figure C.1 – Illustration de la protection autour d’une machine de traitement à laser.46
Figure C.2 – Illustration des paramètres des protecteurs pour lasers actifs .48
Figure D.1 – Schéma simplifié de la disposition pour l'essai.52
60825-4 IEC:2006 – 3 –
CONTENTS
FOREWORD.9
INTRODUCTION.13
1 Scope.15
2 Normative references.15
3 Definitions .15
4 Laser processing machines.19
4.1 Design requirements.19
4.2 Performance requirements.21
4.3 Validation .21
4.4 User information .23
5 Proprietary laser guards.23
5.1 Design requirements.23
5.2 Performance requirements.23
5.3 Specification requirements.23
5.4 Test requirements.25
5.5 Labelling requirements.25
5.6 User information .27
Annex A (informative) General guidance on the design and selection of laser guards.29
Annex B (informative) Assessment of foreseeable exposure limit (FEL) .33
Annex C (informative) Elaboration of defined terms .47
Annex D (normative) Proprietary laser guard testing .51
Annex E (informative) Guidelines on the arrangement and installation of laser guards.55
Annex F (informative) Guideline for assessing the suitability of laser guards .75
Bibliography . 133
Figure B.1 – Calculation of diffuse reflections .35
Figure B.2 – Calculation of specular reflections .35
Figure B.3 – Some examples of a foreseeable fault condition .37
Figure B.4 – Four examples of errant laser beams that might have to be contained by a
temporary guard under service conditions .39
Figure B.5 – Illustration of laser guard exposure during repetitive machine operation .41
Figure B.6 – Two examples of assessed duration of exposure .43
Figure B.7 – Assessed duration of exposure for a machine with no safety monitoring.45
Figure C.1 – Illustration of guarding around a laser processing machine .47
Figure C.2 – Illustration of active laser guard parameters .49
Figure D.1 – Simplified diagram of the test arrangement.53
– 4 – 60825-4 CEI:2006
Figure F.1 – Résistance aux dommages d’une feuille d’acier à revêtement en zinc
d’une épaisseur de 1 mm provenant d’une exposition de 10 s à un faisceau défocalisé
au cours d’expériences utilisant un laser CW CO . 110
Figure F.2 – Résistance aux dommages d’une feu
...
IEC 60825-4 ®
Edition 2.1 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of laser products –
Part 4: Laser guards
Sécurité des appareils à laser –
Partie 4: Protecteurs pour lasers
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IEC 60825-4 ®
Edition 2.1 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of laser products –
Part 4: Laser guards
Sécurité des appareils à laser –
Partie 4: Protecteurs pour lasers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CR
CODE PRIX
ICS 31.260 ISBN 978-2-88910-305-8
– 2 – 60825-4 © IEC:2006+A1:2008
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Definitions .7
4 Laser processing machines .9
4.1 Design requirements .9
4.2 Performance requirements .10
4.3 Validation .10
4.4 User information.11
5 Proprietary laser guards.11
5.1 Design requirements .11
5.2 Performance requirements .11
5.3 Specification requirements .11
5.4 Test requirements .12
5.5 Labelling requirements .12
5.6 User information.13
Annex A (informative) General guidance on the design and selection of laser guards.14
Annex B (informative) Assessment of foreseeable exposure limit (FEL) .16
Annex C (informative) Elaboration of defined terms .23
Annex D (normative) Proprietary laser guard testing .25
Annex E (informative) Guidelines on the arrangement and installation of laser guards.27
Annex F (informative) Guideline for assessing the suitability of laser guards .37
Annex G (normative) Beam delivery systems .64
Bibliography .73
Figure B.1 – Calculation of diffuse reflections .17
Figure B.2 – Calculation of specular reflections .17
Figure B.3 – Some examples of a foreseeable fault condition .18
Figure B.4 – Four examples of errant laser beams that might have to be contained by a
temporary guard under service conditions.19
Figure B.5 – Illustration of laser guard exposure during repetitive machine operation .20
Figure B.6 – Two examples of assessed duration of exposure .21
Figure B.7 – Assessed duration of exposure for a machine with no safety monitoring.22
Figure C.1 – Illustration of guarding around a laser processing machine .23
Figure C.2 – Illustration of active laser guard parameters .24
Figure D.1 – Simplified diagram of the test arrangement.26
Figure F.1 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW CO laser .53
Figure F.2 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser .53
60825-4 © IEC:2006+A1:2008 – 3 –
Figure F.3 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW CO laser .54
Figure F.4 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser .54
Figure F.5 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW CO laser .55
Figure F.6 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser .55
Figure F.7 – Damage resistance of 2 mm thick aluminium sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser.56
Figure F.8 – Damage resistance of 2 mm thick aluminium sheet derived from 100 s
exposure to a defocused beam during experiments using a CW CO laser.56
Figure F.9 – Damage resistance of 1 mm thick stainless steel sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser.57
Figure F.10 – Damage resistance of 1 mm thick stainless steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser .57
Figure F.11 – Damage resistance of 6 mm thick polycarbonate sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser.58
Figure F.12 – Damage resistance of 6 mm thick polycarbonate sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser .58
Figure F.13 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .59
Figure F.14 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .59
Figure F.15 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .60
Figure F.16 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .60
Figure F.17 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .61
Figure F.18 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .61
Figure F.19 – Damage resistance of 2 mm thick aluminium sheet derived from 10 s
exposure to a defocused beam during experiments using a CW Nd:YAG laser.62
Figure F.20 – Damage resistance of 2 mm thick aluminium sheet derived from 100 s
exposure to a defocused beam during experiments using a CW Nd:YAG laser.62
Figure F.21 – Damage resistance of 1 mm thick stainless steel sheet derived from 10 s
exposure to a defocused beam during experiments using a CW Nd:YAG laser.63
Figure F.22 – Damage resistance of 1 mm thick stainless steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser .63
Table D.1 – Laser guard classification .26
Table F.1 – Application of ALARP.40
Table G.1 – Beam delivery systems using free space beam delivery systems.69
Table G.2 – Beam delivery systems using fibre optic cables .71
– 4 – 60825-4 © IEC:2006+A1:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
SAFETY OF LASER PRODUCTS –
Part 4: Laser guards
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activit
...
IEC 60825-4 ®
Edition 2.2 2011-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
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INTERNATIONALE
colour
inside
Safety of laser products –
Part 4: Laser guards
Sécurité des appareils à laser –
Partie 4: Protecteurs pour lasers
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IEC 60825-4 ®
Edition 2.2 2011-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety of laser products –
Part 4: Laser guards
Sécurité des appareils à laser –
Partie 4: Protecteurs pour lasers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.260 ISBN 978-2-8891-2515-9
– 2 – 60825-4 IEC:2006+A1:2008+A2:2011
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Definitions . 7
4 Laser processing machines . 9
4.1 Design requirements . 9
4.2 Performance requirements . 10
4.3 Validation . 10
4.4 User information . 11
5 Proprietary laser guards . 11
5.1 Design requirements . 11
5.2 Performance requirements . 11
5.3 Specification requirements . 11
5.4 Test requirements. 12
5.5 Labelling requirements. 12
5.6 User information . 13
Annex A (informative) General guidance on the design and selection of laser guards . 14
Annex B (informative) Assessment of foreseeable exposure limit (FEL) . 16
Annex C (informative) Elaboration of defined terms . 23
Annex D (normative) Proprietary laser guard testing . 25
Annex E (informative) Guidelines on the arrangement and installation of laser guards . 30
Annex F (informative) Guideline for assessing the suitability of laser guards . 40
Annex G (normative) Beam delivery systems . 67
Bibliography . 76
Figure B.1 – Calculation of diffuse reflections . 17
Figure B.2 – Calculation of specular reflections . 17
Figure B.3 – Some examples of a foreseeable fault condition . 18
Figure B.4 – Four examples of errant laser beams that might have to be contained by a
temporary guard under service conditions. 19
Figure B.5 – Illustration of laser guard exposure during repetitive machine operation . 20
Figure B.6 – Two examples of assessed duration of exposure . 21
Figure B.7 – Assessed duration of exposure for a machine with no safety monitoring . 22
Figure C.1 – Illustration of guarding around a laser processing machine . 23
Figure C.2 – Illustration of active laser guard parameters . 24
Figure D.1 – Simplified diagram of the test arrangement . 27
Figure D.2 – Simplified diagram of the ventilation for the guard under test . 27
60825-4 IEC:2006+A1:2008+A2:2011 – 3 –
Figure F.1 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW CO laser . 56
Figure F.2 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser . 56
Figure F.3 – Damage resistance of 2 mm thick zinc coated steel sheet derived from 10
s exposure to a defocused beam during experiments using a CW CO laser . 57
Figure F.4 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser . 57
Figure F.5 – Damage resistance of 3 mm thick zinc coated steel sheet derived from 10
s exposure to a defocused beam during experiments using a CW CO laser . 58
Figure F.6 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW CO laser . 58
Figure F.7 – Damage resistance of 2 mm thick aluminium sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser . 59
Figure F.8 – Damage resistance of 2 mm thick aluminium sheet derived from 100 s
exposure to a defocused beam during experiments using a CW CO laser . 59
Figure F.9 – Damage resistance of 1 mm thick stainless steel sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser . 60
Figure F.10 – Damage resistance of 1 mm thick stainless steel sheet derived from 100
s exposure to a defocused beam during experiments using a CW CO laser . 60
Figure F.11 – Damage resistance of 6 mm thick polycarbonate sheet derived from 10 s
exposure to a defocused beam during experiments using a CW CO laser . 61
Figure F.12 – Damage resistance of 6 mm thick polycarbonate sheet derived from 100
s exposure to a defocused beam during experiments using a CW CO laser . 61
Figure F.13 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 62
Figure F.14 – Damage resistance of 1 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 62
Figure F.15 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 63
Figure F.16 – Damage resistance of 2 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 63
Figure F.17 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
10 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 64
Figure F.18 – Damage resistance of 3 mm thick zinc coated steel sheet derived from
100 s exposure to a defocused beam during experiments using a CW Nd:YAG laser . 64
Figure F.19 – Damage resistance of 2 mm thick aluminium sheet derived from 10 s
exposure to a defocused beam during experiments using a CW Nd:YAG laser . 65
Figure F.20 – Damage resistance of 2 mm thick aluminium sheet derived from 100
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