CISPR 14-1:2020

Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission

📅 Issue date：2020 🔄 Effective date：2020 🌍 Type：国际标准

📑 Table of Contents

1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Limits

01 Scope

CISPR 14-1 specifies limits, measurement methods and operating conditions for electromagnetic emission (continuous/discontinuous disturbance, radiated disturbance) from 9 kHz to 400 GHz for household appliances, electric tools and similar apparatus. GB 4343.1-2024 is identically adopted from this standard.

02 Normative references

CISPR 16-1-1 Measuring apparatus
CISPR 16-1-2 Artificial mains network
CISPR 16-2-1 Conducted disturbance measurements
CISPR 16-2-3 Radiated disturbance measurements
IEC 61000-3-2 Harmonic currents (if applicable)

03 Terms and definitions

Continuous disturbance

Disturbance on the measuring receiver without noticeable pauses.

Discontinuous disturbance (click)

Disturbance produced intermittently, appearing as a series of distinct pulses.

Class A / Class B equipment

Class A for non-domestic environments; Class B for domestic use connected to the residential low-voltage mains (stricter limits).

04 Technical requirements

Conducted disturbance

Mains terminals 150 kHz~30 MHz: Class B QP 66->56 (150k~500k), 56 (500k~5M), 60 (5M~30M) dBμV.

Radiated disturbance

30 MHz~1 GHz: Class B 40 dBμV/m (3 m, 30~230M), 47 dBμV/m (3 m, 230M~1G).

Disturbance power

30 MHz~300 MHz by absorption clamp: Class B 45->55 dBpW.

05 Test methods

Setup

EUT on non-conductive table or insulating support; antenna scanned over 1~4 m height.

Operation

Most unfavorable typical operating condition; tools loaded/locked-rotor as applicable.

06 Limits

Table 1 Mains-terminal conducted limits (Class B, dBμV)

Frequency	QP	AV
150 kHz ~ 500 kHz	66 ~ 56	56 ~ 46
500 kHz ~ 5 MHz	56	46
5 MHz ~ 30 MHz	60	50

QP=quasi-peak, AV=average. Limits interpolated linearly with frequency.

📎 Related standards

Disclaimer：This page is a technical summary of the corresponding standard for quick reference. All limits, clauses and methods are subject to the official publication and its latest amendments; formal compliance assessment must refer to the official issued text.