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When technology or measures fail to absolutely avoid risk of health, the owner is required
to provide personal protective devices for operator and maintenance personnel. For example,
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Boot with steel cover
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Protective gloves
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Laser-proof goggle
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Light respirator
2.5Special product risks
2.5.1 Laser radiation risk
Based on level of potential risk of laser radiation, the national standard GB 7247.1-2001
makes classification for them. Laser class applicable for this laser cutting machine depends on
operation mode. The followings are abstract of laser device classification prescribed by the state:
class l: safe laser device under reasonable and foreseeable working conditions
class 2:laser device emitting visible light at wave length of 400nm-700nm. Generally, avoidance
response including blink reflection provides protection;
class 3A: safe laser light visible to naked eyes. Generally, avoidance response including blink
reflection provides protection. Harm to naked eyes of other wave lengths will be less class l laser
device. class 3A light beam internal observation with optical device (e.g. glasses, telescope,
microscope) may be dangerous.
class 3B: dangerous laser- device is to directly and internally see light beam. Generally,
observation of diffuse reflection is safe.
class 4:laser device with diffuse reflection causes danger. They may possibly cause skin burn,
or fire accident. Great care is required to use this kind of laser device.
2.5.1.1 Common mode
In the normal operating mode, the laser cutting machine equals to class I laser radiation. in
this operating mode, there will no harm of laser radiation to eyes and skin; however, you are
recommended to wear gaggles with antiglare filter in case of long-term exposure to cutting light
beam.
Tips : personal protective devices shall not be provided together with the machine.
Tips:
It is a must to ensure normal operating mode;
Correct installation of all protective covers;
Keep upper cover of crossbeam closed;
Correct operation of the laser cutting machine;
Materials to be processed have been verified suitable for C02 laser processing