1、安装电动伸缩门，必须有接地线，有很多伸缩门用户或者安装师傅为了方便，一般不会接地线，只是接通电源线的火线和零线，这样一旦出现电源线老化引起破裂，接触到伸缩门门体，容易发生危险，如果有接地线，将漏的电卸载到大地上，对人体不会有多大危害。

1, installation of electric telescopic door, there must be a grounding wire, there are a lot of telescopic door users or installation master for convenience, generally do not ground wire, just connect the live line and the neutral line of the power line, so that once the power line aging caused by rupture, contact with the telescopic door body, prone to danger, if there is a grounding wire, the leakage of electricity unloaded to the earth, will not be much harm to the human body.

2、安装漏电开关保护装置，给电动伸缩门加装一个漏电保护器开关，当有漏电的情况下，它会主动切断电源，这样不会出现漏电引发触电身亡事故发生（漏电保护器开关市场上一般几十上百块钱，用户可以加装）

2, install the leakage switch protection device, add a leakage protector switch to the electric telescopic door, when there is leakage, it will take the initiative to cut off the power supply, so that there will be no leakage caused by electrocution accident (leakage protector switch on the market generally dozens of hundreds of dollars, users can add)

3、定期检查，最近长江中下游（华中、华东、西南）区域进入雷暴雨及台风性季节气候，大部分城市被水灌溉，这时候要特别注意电源线接头地方、门排电源线是否有问题，尽量防止伸缩门被雨水浸泡。

3, regular inspection, recently in the middle and lower reaches of the Yangtze River (central China, East China, southwest) into the thunderstorm and typhoon seasonal climate, most cities are irrigated by water, this time to pay special attention to the power cable joint place, door row power line is wrong, try to prevent the telescopic door by rain soaked.