Production activities of construction risk is big, many unsafe factors, is the industry with accidents. Because be versed in the number of deaths every year after the mine, the industry's second in the nation. Hand-held power tools in use process accident, in the construction industry also occupies certain proportion in the accident. Below small make up to introduce the hand-held power tools in the process of using common security hidden danger. , hand-held power tool is run under the man's grip, once get an electric shock, because the muscle contraction and difficult to get rid of the charged body, easy to cause serious consequences. , hand-held power tool is run under the grip of people, between people and tools of a small resistance. Once exposed portion tool charged, will have a larger electric current through the body, easy to cause serious consequences. , handheld electric construction has great mobility, and could move under harsh conditions, easy to damage and make the metal shell charged, cause accident getting an electric shock. , handheld electric construction has great mobility, the power cord is easy to tension, grinding and leakage, the power cord connection fall off easily and make the metal shell charged, cause accident getting an electric shock. , hand-held electric tools without operation is steady and uneven or too hard, lead to drill or component damage to hurt themselves or others. , small hand-held electric tools using V single-phase ac power supply, a work by a phase line and zero line of power supply, such as wrongly group was plugged in the metal shell or incorrectly will protect the zero line open circuit, all can cause metal shell charged, cause accident getting an electric shock.
