Mechanical risk, as the name suggests, is due to the movement of the equipment or dumping, etc. contact with the human body and cause personal injury.
1) when the equipment or components are not well fixed, placed in the center of gravity is too high, tilted equipment, etc., there is a risk of injury from tipping; 2) moving parts are not effectively isolated, for example, contact with the higher power, high speed fan may cause serious consequences; 3) due to design and manufacturing defects in the equipment or parts of the edge of the edge of the corner is too sharp and scratched the user.
2. Risk of electric shock
The risk of electric shock of electrical equipment is a direct threat to the safety of the user, so the prevention of electric shock is the most basic requirement for all electrical products, for this reason, any electrical product must have adequate anti-shock measures, such as good grounding or zero protection.
3. Excessive temperature and fire
Excessive temperature will cause the aging of the insulation of the electrical components, shorten the service life of the electrical components, and reduce the reliability of the electrical equipment, which may jeopardize the safety of people and property.
Excessive temperature of exposed components or materials can easily lead to fire, in addition, the high temperature of exposed components may also cause burns, especially exposed metal parts with good thermal conductivity.
Burning in addition to the direct threat to the user's personal safety, but also threaten the safety of the surrounding environment, the fire combustion process of the toxicity and corrosiveness of the secondary generation of direct threat to the life of the personnel on the scene, therefore, combustion has always been the design of electrical products must be carefully guarded against.
4. Radiation hazard
Radiation may cause harm to the human body, including electromagnetic radiation, acoustic radiation and optical radiation. As the application of electronic technology is becoming more and more popular, the users of electronic and electrical products with the above sources of radiation may have no knowledge of the radiation therein, not to mention the awareness of protection.
5. Risk of explosion
High pressure and vacuum state are at risk of explosion, electrical equipment may be subject to high temperature, short-circuit and other situations may occur when the explosion, the risk of which can not be ignored.
6. Chemical risk
Contact with certain liquid hazardous chemicals (such as acid, alkali, mercury) or their vapors, gaseous chemicals or smoke, salt spray, etc. can cause personal injury. Adequate protective measures must be considered when the product contains or may produce such substances.