EN IEC 55014-2-2021 pdf free.Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 2: Immunity – Product family standard (CISPR 14-2:2020).
4.1 The equipment covered by this document is subdivided into categories. For each
category, specific requirements are formulated.
4.2 Category I: equipment containing no electronic control circuitry.
EXAMPLES Appliances, tools and toys that contain no electronic control Circuits and only electromechanical components such as switches, thermostats, brush motors, induction motors, heating elements, lighting toys containing only batteries and LED.
Electrical circuits consisting of passive components (such as radio interference suppression capacitors or inductors, mains transformers, mains frequency rectifiers) are not considered to be electronic control circuitry.
4.3 Category II: mains operated equipment containing electronic control circuitry with no clock frequency higher than 15 MHz.
4.4 Category Ill: battery operated equipment not included in Category I.
EXAMPLES Appliances, tools and toys powered by batteries and that include a microprocessor to provide a selection of functions.
NOTE The assignment to Category Ill is independent of the clock frequency.
This category also includes equipment provided with rechargeable batteries, which can be charged, directly or indirectly, from the mains. Accordingly, this equipment shall also be subjected to the test requirements for mains operated equipment but only when testing the charging function.
If the equipment can operate its intended functions when connected, directly or indirectly to the mains, then it is not battery operated. Accordingly, it shall be classified as Category II, Category IV or Category V, as applicable, and subjected to the corresponding test requirements when in mains operation.
4.5 Category IV: mains operated equipment containing electronic control circuitry with a highest clock frequency greater than 15 MHz but lower than or equal to 200 MHz.
4.6 Category V: mains operated equipment containing electronic control circuitry with a highest clock frequency greater than 200 MHz.
5 Tests
5.1 Electrostatic discharge
Electrostatic discharge tests (air discharges, contact discharges direct and indirect, as appropriate) are carried out according to basic standard IEC 61000-4-2:2008, with test signals and conditions as given in Table 1.EN IEC 55014-2 pdf free download.