Standard positioning and scope of application
GB/T 7247.1 is equivalent to the international standard IEC 60825-1, also known as "Safety of Laser Products Part 1: Equipment Classification,
Requirements and User Guidelines". This standard applies to all laser products, and laser cutting equipment, as high-power industrial laser
equipment, is a key controlled object.
Classification of laser safety levels
Laser cutting equipment usually belongs to Class 4 laser products, which is the highest hazard level:
Can cause skin burns and severe eye damage (including diffuse reflex injury)
May cause a fire
The strictest engineering control and management measures need to be taken
The equipment must be clearly labeled with a Class 4 warning label
Core security requirements
Engineering control measures
Interlocking protective door: The work area must be equipped with a closed protective cover with safety interlock, and the laser will automatically cut
off when the door is opened
Emergency stop device: an easily accessible emergency stop button that covers all operating positions of the equipment
Beam terminator/attenuator: prevents accidental emission
Key control: Master control key switch to prevent unauthorized start
Warning label: Post laser warning labels in a prominent position on the device that comply with standard formats
Radiation safety limit
It is necessary to measure and ensure that the achievable emission level (AEL) of the equipment meets the Class 4 limit requirements under normal
operation and foreseeable single fault conditions
Evaluate and control the secondary radiation generated during the cutting process, such as reflections from molten metal
Testing and evaluation content
Measurement of achievable emission level (wavelength, power/energy, pulse characteristics)
Integrity and interlocking function testing of protective cover
Compliance check of warning signs
User manual safety information review
Fault condition simulation test
Technical document requirements
Manufacturers need to prepare complete technical documents, including:
Product description and laser parameters (wavelength, power, working mode)
Hazard assessment report
Safety design instructions and list of protective measures
Test report (issued by a qualified laboratory)
User manual (including safety warnings, protective requirements, and maintenance guidelines)
Supporting standard system
Laser cutting equipment usually needs to comply with:
GB 7247.1 (General Safety Requirements for Laser Products)
GB/T 15313 (Laser Terminology)
GB 5226.1 (Mechanical and Electrical Safety)
Related mechanical safety standards (such as GB/T 15706, etc.)
Personnel protection requirements
The standard sets clear requirements for operators:
Wear protective goggles that match the wavelength of the laser
Establish safety operating procedures and training system
Set up a laser safety officer position
Set up warning signs and physical isolation in the work area
Common compliance risks
Protective cover interlock failure or design defect
Warning label format or content does not meet standard requirements
The manual lacks necessary safety warning information
Secondary radiation (reflected light) protection measures are not in place
