With the improvement of living standards, "Waterproof Cooling Fan" is a life essential supplies. About appliance installation issues can not be ignored, of course, when you install the appliance electrical safety is a primary consideration, the following simple finishing "Waterproof Cooling Fan" Safety Knowledge installed for your reference. : Do not live action, in order to prevent electric shock, protect the personal safety, install the operating appliances must be carried out in case of power failure, the operation can not be charged. "Waterproof Cooling Fan" after installation, after inspection, no problem before power test machine, test machine, in addition to checking on the use of performance, the shell should check whether the charged shell live electrical equipment can not be used, must be timely maintenance, otherwise it will electric shock, and personal injury.