GB/T 18151: Evolution and historical versions
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Laser guards
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GB/T 18151-2008
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| GB 18151-2000 | English | 759 |
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Basic data | Standard ID | GB/T 18151-2008 (GB/T18151-2008) | | Description (Translated English) | Laser guards | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N33 | | Classification of International Standard | 31.260 | | Word Count Estimation | 50,550 | | Date of Issue | 2008-12-15 | | Date of Implementation | 2009-10-01 | | Older Standard (superseded by this standard) | GB 18151-2000 | | Quoted Standard | GB 7247.1-2007; GB/T 15706.1-2007; GB/T 15706.2-2007; ISO 11553-1-2005 | | Adopted Standard | IEC 60825-4-2006, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 21 of 2008 (No. 134 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the permanent and temporary (such as maintenance) is used to enclose the work area of laser processing machine for laser laser shield and shield requirements. This standard applies to include visual transparent screens and windows, flat, laser curtain and the wall, including a shield for all components. Optical path components, shutter and processing areas are not completely enclosed laser product requirements contained in the protective cover in GB 7247. 1. This standard also pointed out: a) how to assess and regulate laser shield protective nature, b) how to choose a laser shield. | GB/T 18151-2008: Laser guards---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Laser guards
ICS 31.260
N33
National Standards of People's Republic of China
GB/T 18151-2008/IEC 60825-4.2006
Replacing GB 18151-2000
Laser shield
(IEC 60825-4.2006, Safetyoflaserproducts-Part 4. Laserguards, IDT)
Posted 2008-12-15
2009-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 2 laser processing machine shield
4.1 Design Requirements 3
4.2 Performance Requirements 3
4.3 Certification Requirements 3
4.4 User Information 3
5 special laser shield 3
5.1 Design Requirements 4
5.2 Performance Requirements 4
5.3 specifications 4
5.4 testing requirements 4
5.5 Signage Requirement 4
4 5.6 User Information
General guidelines Appendix A (informative) on the laser shield design and selection of the 6
Annex B (informative) radiation can be expected to limit (FEL) Evaluation 8
Annex C (informative) Definition of the detailed release 13
Annex D (informative) Test for laser shield 15
Annex E (informative) laser shield placement and installation guidelines 17
Annex F (informative) Guidelines for evaluation of the applicability of laser shield 24
References 46
Figure B. 1 diffuse computing 9
Figure B. 2 mirror calculate 9
Figure B. 3 predictable defective state few examples 9
Figure B. 4 a temporary shield appears in the operating state of the laser beam drift four examples 10
Figure B. 5 illustrates a laser shield during operation of the machine repeated irradiated Description 11
Figure B. Examples 2 6 estimating exposure duration of 11
Figure B. 7 does not evaluate to one safety monitoring means that the duration of the irradiation machine 12
Figure C. 1 a laser processing machine 13 illustrated Bumper
Figure C. 2 active laser shield parameters illustrated 14
Figure D. 1 test configuration diagram 15
Figure F. 1 with continuous CO2 laser 1mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 10s after the show
Damage resistance 35
Figure F. 2 with continuous CO2 laser 1mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s after the show
Damage resistance 35
Figure F. 3 with continuous CO2 laser 2mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 10s after the show
GB/T 18151-2008/IEC 60825-4.2006
Damage resistance 36
Figure F. 4 with continuous CO2 laser 2mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s after the show
Damage resistance 36
Figure F. 5 with continuous CO2 laser 3mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 10s after the show
Damage resistance 37
Figure F. 6 A continuous CO2 laser 3mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s after the show
Damage resistance 37
Figure F. 7 resistance to damage by continuous CO2 laser 2mm thick aluminum plate to do damage experiment defocused laser beam irradiation 10s after the show
Capacity 38 hurt
Figure F. 8 resistant to damage by continuous CO2 laser 2mm thick aluminum plate to do damage experiment defocused laser beam irradiation 100s after the show
Capacity 38 hurt
Figure F. 9 with continuous CO2 laser 1mm thick stainless steel plate experiments do damage to defocus the laser beam irradiation 10s after the show
Damage resistance 39
Figure F. 10 with continuous CO2 laser 1mm thick stainless steel plate experiments do damage to defocus the laser beam irradiation 100s after the show
Damage resistance 39
Figure F. 11 with continuous CO2 laser 6mm thick polycarbonate plate experiments do damage to defocus the laser beam irradiation 10s after presentation
The damage resistance 40
Figure F. 12 with continuous CO2 laser 6mm thick polycarbonate plate experiments do damage to defocus the laser beam irradiation was after 100s
Now the damage resistance 40
Figure F. 13 Continuous use of Nd. YAG laser to 1mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation was 10s
Now the damage resistance 41
Figure F. YAG laser of 1mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s. 14 with a continuous Nd
Damage resistance presented 41
Figure F. 15 A continuous Nd. YAG laser for 2mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation was 10s
Now the damage resistance 42
Figure F. YAG laser for 2mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s. 16 with a continuous Nd
Damage resistance presented 42
Figure F. 17 Continuous use of Nd. YAG laser to 3mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation was 10s
Damage resistance now 43
Figure F. YAG laser to 3mm thick galvanized steel sheet damage done experiments to defocus the laser beam irradiation 100s. 18 with a continuous Nd
Damage resistance presented 43
Figure F. 19 with a continuous Nd. YAG laser of 2mm thick aluminum plate to do damage experiment defocused laser beam irradiation 10s after the show
Damage resistance 44
Figure F. 20 with continuous Nd. YAG laser of 2mm thick aluminum plate to do damage experiment defocused laser beam irradiation 100s after presentation
The damage resistance 44
Figure F. 21 Continuous use of Nd. YAG laser to 1mm thick stainless steel plate experiments do damage to defocus the laser beam irradiation was 10s
Now the damage resistance 45
Figure F. YAG laser to 1mm thick stainless steel plate experiments do damage to defocus the laser beam irradiation 100s. 22 with a continuous Nd
Damage resistance presented 45
Table D. 1 laser shield level 15
Table F. 1 ALARP application 26
GB/T 18151-2008/IEC 60825-4.2006
Foreword
This standard is equivalent to using the International Electrotechnical Commission IEC 60825-4.2006 "Safety of laser products --- Part 4. Laser shield"
Only editorial changes.
This standard is GB 18151-2000 amendments.
This standard compared with GB 18151-2000, the main changes are as follows.
--- By the mandatory standards to voluntary standards;
--- Body consists of 3 to 5;
--- Appendix consists of 3 to 6;
--- Illustrated by the 9 to 32;
--- An increase of two forms;
--- Canceled IEC foreword;
1.3.18 --- deleted, because the provision is included in the GB 7247.1;
--- Correct an error. C. 1FEL and PEL difference. the "maximum" should be "minimum";
--- Fixed D. 2 two inappropriate wording.
● laser beam perpendicular to the sample surface is irradiated, the "vertical" to "approximately perpendicular";
● sample temperature generated by the laser irradiation, the "temperature" to "rise."
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Annex E and Annex F is informative appendix.
This standard was proposed by the State Administration of Work Safety.
This standard produced by the National Standardization Technical Committee on Security.
This standard was drafted. China Institute of Metrology.
The main drafters of this standard. Lvzheng, red horse.
This standard was first released in July 2000.
GB/T 18151-2008/IEC 60825-4.2006
Introduction
Style shield issue shortest time termination signal.
3.2
It is designed to automatically terminate the laser radiation signal active shield the surface exposed to excessive laser irradiation emitted from the front.
3.3
As a safety control system, a laser shield portion. When the front surface being above the Class 1 AEL laser radiation, can produce
Generate a signal to terminate the laser radiation.
3.4
Under fault conditions can be expected to estimate the maximum amount of laser irradiation before maintenance and inspection during laser shield that can be subjected to the surface.
3.5
Laser shield surface exposed to laser radiation.
GB/T 18151-2008/IEC 60825-4.2006
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