Clause 3 – How to understand the definition of “rated” in clause 3.1.1 – 3.1.8

There are 7 rated item from clause 3.1.1 to clause 3.1.8 except for clause 3.1.3, such as rated voltage, rated voltage range, rated power input, rated power input range, rated current, rated frequency, rated frequency range. To summarize the intent of the standard, “rated” represents a set of parameters assigned to the appliance by the…

Clause 3 – How to understand the definition of “working voltage”

working votlage: maximum voltage to which the part under consideration is subjected when the appliance is supplied at its rated voltage and operating under normal operation, with controls and switching devices positioned so as to maximize the value NOTE 1 working voltage takes into account resonant voltages. NOTE 2 When deducing the working voltage, the…

Clause 3 – How to understand the definition of “rated voltage range”

rated voltage range:voltage range assigned to the appliance by the manufacturer, expressed by its lower and upper limits. This definition is an extension of the definition of rated voltage. It is a rated voltage in the form of a range with upper and lower values. Often, when a manufacturer designs a product with a large…