7.3.2.1 General 总则
7.3.2.1.1 For motor-operated tools with two rotating directions, measurements shall be made for each direction after operating periods of 15 min for each direction, the highest of the two disturbance levels shall comply with the limit.
对于双向旋转的电动工具，应在每个方向运行15min后，分别进行测量，两者均应符合限值。
7.3.2.1.2 Electric power-operated tools which incorporate vibrating or swinging masses shall be tested with these masses disengaged by a clutch or other mechanical device or electrically disconnected by a switch, if possible. If such disengagement or disconnection is not possible and if according to the manufacturer's instruction the tool shall not be used at no-load, then the vibrating or swinging masses shall be removed and the mains voltage lowered so that the tool operates at its nominal speed.
对装有振动块或摆动块的电动工具，如果可能这些装置通过离合器或机械设备脱离或用开关电器断开的情况下测量。如果脱开或断开时不可能的，而且如果按照制造商的说明，工具不能在空载下使用，则应拆去振动块或摆动块，切将电源电压降低，以达到工具的正常速度。
7.3.2.1.3 For tools designed to operate via a transformer intended to be connected to the mains supply, the following measuring procedure shall be applied:
设计通过变压器接到电源运行的工具，采用下列测量步骤：
a) Terminal voltage: 148,5 kHz to 30 MHz 端子电压：148.5 kHz -30 MHz
If the tool is sold together with a step-up transformer the disturbance shall be assessed by measurements made on the power supply side of the transformer. The power supply lead from the tool to the transformer shall have a length of 0,4 m or, if longer, folded to form a horizontal bundle with a length between 0,3 m and 0,4 m.
如果工具是带着升压变压器一起出售的，则通过在变压器电源端进行测量来评定骚扰。从工具刀变压器的电源引线应为0.4m长，或如果更长时，折叠成长度0.3m-0.4m之间的水平线束。
If the tool is intended to be used with a transformer, the disturbance shall be assessed by measurements made on the power supply side of the transformer recommended by the manufacturer for use with the tool.
如果工具打算与变压器一起使用，则通过在制造商推荐与工具一起使用的变压器的电源端进行测量来评定骚扰。
Where a tool is not supplied with a "sample" transformer at the time of the test, it shall be operated at its rated voltage, and the disturbance shall be assessed by measurements made at the tool's power input connections.
如果测试时没有提供变压器的“试样”，器具应在额定电压下运行，通过在工具的电源输入连接点进行测量来评定骚扰。
b) Disturbance power: 30 MHz to 300 MHz骚扰功率：30 MHz - 300 MHz
The disturbance shall be assessed by measurements made on the tool's power input connection whilst being supplied at its rated voltage. The tool shall, during measurement, be equipped with a power supply lead with a length suitable for measurements with the absorbing clamp as described in 6.2.4.
通过在以额定电压运行的工具的电源输入连接点进行测量来评定骚扰。在测量期间，工具应装有长度适用于6.2.4所述的吸收钳测量的电源引线。
7.3.2.2 Handheld (portable) motor-operated tools, as: 手持式（便携式）电动工具，如
Drills, impact drills电钻，冲击电钻
Screwdrivers and impact wrenches 螺丝刀和冲击扳手，
Thread-cutting machines套丝机
Grinders, disc-type and other sanders and polishers磨光机，盘式和其它砂光机和抛光机，
Saws, knives and shears锯，刀和剪
Planing machines and hammers电刨和电锤
shall be operated continuously without load. 应空载连续运行。
7.3.2.3 Transportable (semi-stationary) motor-operated tools shall be operated similar to the handheld (portable) tools contained in 7.3.2.2.
可移式（半固定式）电动工具应类似于7.3.2.2的手持式（便携式）工具运行。
7.3.2.4 Soldering equipment, soldering guns, soldering irons
焊接设备，焊枪，焊接烙铁
a) For equipment with neither a thermostatically or electronically controlled switch, nor a motor, nor a regulating control (i.e. equipment which does not generate disturbances) measurements need not be performed;
既没有任何温控和电气控制开关，也没有电动机和调节控制器的设备（即不产生骚扰的设备），不需要测量；
b) Equipment with thermostatically or electronically controlled switch shall be operated with the highest possible duty-cycle. If there is a control device for the temperature the click rate N shall be determined for a duty cycle of (50 ± 10) % of this control device;
有温控和电气控制开关的设备应用最高可能的工作周期运行。如有温度控制装置，喀呖声率N应在控制装置(50 ± 10) %的工作周期时确定；
