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GB/T 18490.1-2017 English PDF (GBT18490.1-2017)

GB/T 18490.1-2017 English PDF (GBT18490.1-2017)

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GB/T 18490.1-2017: Safety of machinery -- Laser processing machines -- Part 1: General safety requirement

GB/T 18490.1-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 31.260
L 51
Replacing GB 18490-2001
Safety of machinery - Laser processing machines -
Part 1: General safety requirement
(ISO 11553-1:2005, Safety of machinery - Laser processing machines -
Part 1: General safety requirements, MOD)
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: JULY 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
Introduction ... 7
1 Scope ... 8
2 Normative references ... 8
3 Terms and definitions ... 9
4 Hazards ... 12
4.1 General ... 12
4.2 Inherent hazards ... 12
4.3 Hazards created by external effects (interferences) ... 13
4.4 Other potential hazards ... 13
5 Safety requirements and measures ... 13
5.1 General requirements ... 13
5.2 Risk assessment ... 14
5.3 Implementation of corrective measures ... 15
6 Verification of safety requirements and measures ... 20
7 Information for user ... 20
8 Labelling ... 22
Annex A (Informative) Potential hazards ... 24
Annex B (Informative) Protection against other hazards ... 27
Bibliography ... 28
Foreword
GB/T 18490 "Safety of machinery - Laser processing machines" is divided into the following three parts:
- Part 1: General safety requirement;
- Part 2: Safety requirements for hand-held laser processing devices;
- Part 3: Noise reduction and noise measurement methods for laser
processing machines and hand-held processing devices and associated
auxiliary equipment (accuracy grade 2).
This Part is Part 1 of GB/T 18490.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB 18490-2001 "Laser processing machines - Safety
requirements". Compared with GB 18490-2001, the main technical changes of this Part are as follows:
- ADD the standard for noise hazard generated by laser processing machines to the scope (see Clause 1);
- ADD and modify the normative references (see Clause 2);
- ADD terms and definitions: location with controlled access, location with restricted access, location with unrestricted and uncontrolled access (see 3.3, 3.4, 3.5);
- ADD "Machinery shall comply as appropriate with GB/T 15706-2012 for
hazards which are not covered by this Part." (see 5.1);
- Modify the content of protection against laser radiation hazards (see 5.3.2.1, 5.3.2.2; 5.3.1.1 and 5.3.1.2 of the 2001 edition);
- Modify the content of control means and circuits (see 5.3.3.1, 5.3.3.3, 5.3.3.4, 5.3.3.6; 5.3.2, 5.3.2.2, 5.3.2.3, 5.3.2.5 of the 2001 edition); - Modify the standard content that user information shall follow (see Clause 7; Clause 7 of the 2001 edition);
- ADD examples of processing by-products of unintentionally deteriorated materials (see A.1.10);
- ADD the standard content that shall be followed for related hazard
protection (see Annex B).
This Part uses the redraft law to modify and adopt ISO 11553-1:2005 "Safety of machinery - Laser processing machines - Part 1: General safety requirements". Compared with ISO 11553-1:2005, the main technical differences and their reasons for this Part are as follows:
- As for the normative references, this Part has made adjustments with
technical differences, to adapt to the technical conditions of China. The adjustments are reflected in Clause 2 “Normative references”. The specific adjustments are as follows:
 Replace the referenced document ISO 3864:1984 in the former
international standard with GB/T 2893 (all parts). The degree of
consistency between the two standards is as follows:
 GB/T 2893.1-2013 Graphical symbols - Safety colours and safety
signs - Part 1: Design principles for safety signs and safety
markings (ISO 3864.1-2011, MOD)
 GB/T 2893.2-2008 Graphical symbols - Safety colours and safety
signs - Part 2: Design principles for product safety labels (ISO
3864-2:2004, MOD)
 GB/T 2893.3-2010 Graphical symbols - Safety colours and safety
signs - Part 3: Design principles for graphical symbols for use in
safety signs (ISO 3864-3:2006, MOD)
 GB/T 2893.4-2013 Graphical symbols - Safety colours and safety
signs - Part 4: Colorimetric and photometric properties of safety
sign materials (ISO 3864-4:2011, MOD)
 Replace the referenced document IEC 60204-1:1997 in the former
international standard with GB 5226.1-2008 identical to the
international standard (see 5.3.3, Clause 7);
 Replace the referenced document IEC 60825-1:2001 in the former
international standard with GB 7247.1-2012 identical to the
international standard (see Clause 3, 5.3, Clause 6, Clause 7, Clause
8);
 Replace the referenced documents ISO 12100-1:2003 and ISO 12100-
2:2003 in the former international standard with GB/T 15706-2012
identical to the international standard ISO 12100:2010 (see Clause 3,
4.2, 5.1, 5.2, 5.3, Clause 7);
 Replace the referenced document ISO 13849-1:1999 in the former
international standard with GB/T 16855.1-2008 identical to the
international standard (see 5.3.3);
 Replace the referenced document IEC 60825-4:2011 in the former
international standard with GB/T 7247.4-2016 identical to the
international standard (see 5.3.2);
 Replace the referenced document ISO 14119:1998 in the former
international standard with GB/T 18831-2010 which modifies and
adopts the international standard (see 5.3.3);
 Replace the referenced document ISO 14118:2000 in the former
international standard with GB/T 19670-2005 which modifies and
adopts the international standard (see 5.3.3);
 Replace the referenced document ISO 11252:2004 in the former
international standard with ISO 11252:2013;
 ADD GB/T 18490.3-2017 Safety of machinery - Laser processing
machines -Part 3: Noise reduction and noise measurement methods for
laser processing machines and hand-held processing devices and
associated auxiliary equipment (accuracy grade 2);
- Delete Table 1 in ISO 11553-1:2005, 3.5, to eliminate ambiguity and simplify the standard;
- ADD the title 5.3.3.1 General for the first suspended paragraph in 5.3.3. The subsequent subclause numbers have been changed accordingly.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing authority of this document shall not be held responsible for identifying any or all such patent rights.
This Part was proposed by China Machinery Industry Federation.
This Part shall be under the jurisdiction of National Technical Committee 103 on Optics and Photonics of Standardization Administration of China (SAC/TC 103).
Drafting organizations of this Part: Beijing Institute of Optoelectronics Technology, Han's Laser Technology Industry Group Co., Ltd., Southwest
Institute of Technical Physics, China Ordnance Industrial Standardization Research Institute, Wuhan Huagong Laser Engineering Co., Ltd., The 11th Research Institute of China Electronics Technology Group Corporation.
Safety of machinery - Laser processing machines -
Part 1: General safety requirement
1 Scope
This Part of GB/T 18490 describes hazards generated by laser processing machines, and specifies the safety requirements relating to radiation hazards and hazards generated by processed materials and substances. It also
specifies the information to be supplied by the manufacturers of such
equipment.
Requirements dealing with noise as a hazard from laser processing machines are not included in this Part. They will be included in GB/T 18490.3-2017. This Part is not applicable to laser products, or equipment containing such products, which are manufactured solely and expressly for the following applications:
- photolithography;
- stereolithography;
- holography;
- medical applications;
- data storage.
2 Normative references
The following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document.
GB/T 2893 (all parts) Graphical symbols - Safety colours and safety signs [ISO 3864 (all parts)]
GB 5226.1-2008 Electrical Safety of Machinery - Electrical Equipment of Machines - Part 1: General Requirements (IEC 60204-1:2005, IDT)
GB 7247.1-2012 Safety of laser products - Part 1: Equipment classification and requirements (IEC 60825-1:2007, IDT)
GB/T 15706-2012 Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010, IDT)
GB/T 16855.1-2008 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006, IDT) GB/T 7247.4-2016 Safety of laser products - Part 4: Laser shields (IEC
60825-4:2011, IDT)
GB/T 18831-2010 Safety of machinery - Interlocking devices associated with guards - Principles for design and selection (ISO 14119:1998 and
Amd.1:2007, MOD)
GB/T 19670-2005 Safety of machinery - Prevention of unexpected start-up (ISO 14118:2000, MOD)
GB/T 18490.3-2017 Safety of machinery - Laser processing machines - Part 3: Noise reduction and noise measurement methods for laser processing
machines and hand-held processing devices and associated auxiliary
equipment (accuracy grade 2) (ISO 11553-3:2013, MOD)
ISO 11252:2013 Lasers and laser-related equipment - Laser device -
Minimum requirements for documentation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15706-2012 and GB 7247.1-2012 and the following apply.
3.1
Machine
Assembly of linked parts or components, at least one of which moves, with the appropriate actuators, control and power circuits, joined together for a specific application, in particular for the processing, treatment, moving or packaging of a material.
3.2
Laser processing machine
Machine in which (an) embedded laser(s) provide(s) sufficient energy/power to melt, evaporate, or cause a phase transition in at least a part of the workpiece,

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