电动扳手是指拧紧和旋松螺栓及螺母的电动工具，是一种拧紧高强度螺栓的工具。用于钢结构桥梁、厂房建筑、化工、发电设备安装大六角头高强度螺栓施工的初拧、终拧和扭剪型高强度螺栓的初拧，以及对螺栓紧固件的扭矩或轴向力有严格要求的场合。
Electric wrench refers to an electric tool for tightening and loosening bolts and nuts. It is a tool for tightening high-strength bolts. It is used for initial tightening, final tightening and initial tightening of torsional shear high-strength bolts in the construction of large hexagon head high-strength bolts for the installation of steel structure bridges, plant buildings, chemical industry and power generation equipment, as well as occasions with strict requirements on the torque or axial force of bolt fasteners.
电动扳手出口欧盟，需要出示产品CE认证证书报告，用以证明满足欧盟ce认证要求。
When the electric wrench is exported to the EU, the product CE certification report shall be presented to prove that it meets the EU CE certification requirements.
电磁兼容部分：骚扰功率、辐射骚扰、端子骚扰电压、静电放电抗扰度、电磁辐射抗扰度、传导抗扰。
Electromagnetic compatibility: disturbance power, radiation disturbance, terminal disturbance voltage, electrostatic discharge immunity, electromagnetic radiation immunity, conduction immunity.
低电压部分：谐波电流、电压波动和闪烁、电流强度、瞬时电压
Low voltage part: harmonic current, voltage fluctuation and flicker, current intensity, instantaneous voltage
主要测试标准：
Main test standards:
EN 60745-1 手持式电动工具
EN 60745-1 hand held electric tools
EN 60745-2-9手持式电动工具.性.第2-9部分:攻丝机的详细要求
EN 60745-2-9 hand held electric tools Safety Part 2-9: Particular requirements for tapping machines
EN 61000-3-2 电磁兼容性（ EMC ） ，
EN 61000-3-2 electromagnetic compatibility (EMC),
EN 61000-3-3电磁兼容性（EMC） 第3-3部分
EN 61000-3-3 electromagnetic compatibility (EMC) Part 3-3
EN 55014-1电磁兼容性.家用电器,电工具和类似装置的要求.放射物
EN 55014-1 electromagnetic compatibility Requirements for household appliances, electrical tools and similar devices Radioactive substance
EN 55014-2电磁兼容性.家用电器,电工具和类似装置的要求.
EN 55014-2 electromagnetic compatibility Requirements for household appliances, electrical tools and similar devices
办理CE认证需要的资料：
Data required for CE certification:
1、公司信息：名称、地址、商标、
1. Company information: name, address, trademark
2、产品信息：名称、型号、技术参数表（如有多型号，需系列产品差异比较资料）；
2. Product information: name, model and technical parameter table (if there are multiple models, the difference comparison data of series products is required);
3、使用说明书；
3. Operating instructions;
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