3.23 normal operation of toys:玩具的正常操作
condition under which the toy, connected to the recommended power supply, is played with as
intended or in a foreseeable way, bearing in mind the normal behaviour of children.
3.24 clock frequency:时钟频率
the fundamental frequency of any signal used in the device excluding those which are solely used inside integrated circuits (IC)
NOTE High frequencies are often generated inside of integrated circuits (IC) by phase-locked-loop (PLL) circuits from lower clock oscillator frequencies outside the IC.
3.25 battery-operated appliance:电池供电器具
appliance which is operated only from batteries and has no provision for performing its
intended function when connected to the mains, either directly or via a power supply
NOTE 1 Toys are not considered to be appliances.
NOTE 2 An appliance which has provision for charging but cannot perform its intended function during charging is considered to be a battery-operated appliance.
3.26 mains-operated appliance:电源供电器具
all appliances which are not battery-operated appliances
NOTE Toys are not considered to be appliances.
Radio disturbance measurements below 148,5 kHz and above 1 000 MHz do not need to be
be carried out.The requirements for induction cooking appliances are given in Annex B.
低于148.5kHz,或者高于1000MHz的射频骚扰是不在本标准的测试范围。对于感应器具的要求在附录B中。
4.1 Continuous disturbance:连续骚扰
Commutator motors, as well as other devices incorporated in household appliances, electric
tools and similar electrical apparatus may cause continuous disturbance.
Continuous disturbance may be either broadband, caused by switching devices such as
mechanical switches, commutators and semiconductor regulators, or may be narrowband,
caused by electronic control devices such as microprocessors.