⚡ EMC testing — electromagnetic emission

Electronics and EMC PN-EN 55032

Overview

STATUS (as of 02.11.2026). PN-EN 55032:2015-09 — Polish version (published 15.12.2017), implements EN 55032:2015 and CISPR 32:2015 [IDT], replaced PN-EN 55032:2012 (English version); amendments: PN-EN 55032:2015-09/A11:2020-07 (English version; replaces Annex ZZ so that the standard can be cited in the Official Journal of the EU) and PN-EN 55032:2015-09/A1:2021-05 (English version; implements CISPR 32:2015/AMD1:2019 — among other things updated references and corrections of known errors). The catalogue cards carry no withdrawal notice. CISPR 32 edition 2.0 (03.2015) with its corrigendum (06.2016) and amendment 1 (09.2019) forms consolidated edition 2.1; compared with the first edition it added requirements for fully anechoic rooms (FAR), for outdoor units of home satellite receiving systems and informative annexes on GTEM cells and reverberation chambers. The third edition of CISPR 32 is in preparation — according to a power supply manufacturer’s note, the draft adds requirements for wireless power transfer and DC power ports and changes the limits above 1 GHz.

SCOPE (Clause 1). The standard applies to multimedia equipment (MME) with a rated AC or DC supply voltage not exceeding 600 V, including equipment intended primarily for professional use; it covers equipment within the scope of CISPR 13 and CISPR 22. The radiated emission requirements do not apply to the intentional transmissions of radio transmitters or to related spurious emissions; equipment for which other CISPR publications formulate requirements in this frequency range (except CISPR 13 and 22) is excluded, and in-situ testing is outside the scope of the standard. The standard covers two classes of equipment (A and B), specified in Clause 4. Its objective is adequate protection of the radio spectrum so that radio services operate as intended in the range from 9 kHz to 400 GHz, and procedures ensuring reproducibility of measurement and repeatability of results.

REQUIREMENTS (Annex A). Limit tables: radiated emissions up to 1 GHz (A.2 — class A, A.4 — class B) and above 1 GHz (A.3, A.5), FM receivers (A.6), outdoor units of satellite receiving systems (A.7); conducted emissions from AC mains power ports (A.9 — class A, A.10 — class B), asymmetric mode emissions from wired network ports (A.11, A.12) and differential voltages in class B (A.13). According to the editor of the standard (presentation of 2014), the class B limits for radiated emissions up to 1 GHz at an OATS/SAC at 10 m are 30 dB(µV/m) in the range 30–230 MHz and 37 dB(µV/m) in the range 230–1000 MHz, and at 3 m — 40 and 47 dB(µV/m) (quasi-peak detector, 120 kHz bandwidth); one chosen table is applied across the entire frequency range. According to a power supply manufacturer’s note, the class B values above 1 GHz in edition 2 are average 50 dB(µV/m) (1–3 GHz) and 54 dB(µV/m) (3–6 GHz) and peak 70 and 74 dB(µV/m).

MEASUREMENTS. The operation of the object and the test signals are specified in Annex B, measurement procedures and instrumentation in Annex C (with references to the CISPR 16 series), the arrangement of the object, auxiliary equipment and cables in Annex D, prescan measurements in informative Annex E, and the content of the test report in informative Annex F.

LEGISLATION. Directive 2014/30/EU requires the electromagnetic disturbance generated by equipment not to exceed the level above which radio and telecommunications equipment or other equipment cannot operate as intended (Annex I point 1(a)). Compliance with harmonised standards whose references have been published in the Official Journal of the EU gives a presumption of conformity with this requirement (Article 13); a manufacturer who does not apply them describes the solutions adopted in the technical documentation (Annex II point 3(d)). Conformity assessment is usually internal production control by the manufacturer (Article 14, Annex II).

WHAT WE DO NOT GIVE HERE. The definitions of classes A and B (Clause 4), the frequency ranges and limits for conducted emissions and the values for class A, FM receivers and outdoor units, the requirements for test sites, detectors and artificial networks (CISPR 16 series) or the measurement procedure from Annexes B–D — the available text of the standard ends at the definitions; we give the class B values from second sources. Nor do we give the duration or the cost of the tests.

Method principle

The equipment under test (EUT) operates in the mode specified in Annex B. Conducted emissions are measured at AC mains power ports, wired network ports and broadcast receiver ports, and radiated emissions with an antenna at a test site (for example an open area test site OATS, a semi-anechoic chamber SAC or a fully anechoic room FAR) at a set distance. The measured levels are compared with the class A or class B limits from the tables of Annex A, applying one chosen table across the entire frequency range.

Applications

• Emission testing of multimedia equipment (MME) with a supply voltage of up to 600 V — including equipment within the scope of CISPR 13 and CISPR 22 and equipment for professional use
• Assessment of conformity with the emission requirement of Directive 2014/30/EU (Annex I point 1(a)) when applying the harmonised standard
• Radiated emissions (Tables A.2–A.7) and conducted emissions from mains, wired network and broadcast receiver ports (Tables A.9–A.13)
• The standard does not cover the intentional transmissions of radio transmitters or in-situ testing

Key parameters

Standard

Standard number

PN-EN 55032:2015-09 + A11:2020-07 + A1:2021-05 (CISPR 32:2015 + AMD1:2019)

Title (PL)

Kompatybilność elektromagnetyczna urządzeń multimedialnych — Wymagania dotyczące emisji

Title (EN)

Electromagnetic compatibility of multimedia equipment — Emission requirements

Step-by-step procedure

1. Class and ports

   Determine the class of the equipment (A or B, Clause 4) and the ports to be tested: AC mains, wired networks, broadcast receiver ports.

2. Operation and arrangement of the object

   Set the operating mode and test signals according to Annex B and the arrangement of the object, auxiliary equipment and cables according to Annex D.

3. Conducted emissions

   Measure the conducted emissions at each port according to the procedures of Annex C and compare them with Tables A.9–A.13.

4. Radiated emissions

   Measure the radiated emissions at the chosen test site at the set distance and compare them with the relevant table (A.2–A.7), applying it across the entire frequency range.

5. Test report

   Prepare the test report according to Clause 9 (content — informative Annex F), with the compliance assessment according to Clause 10.

Required equipment and apparatus

Reagents, media and consumables

Health and safety (OHS)

• The available text of the standard contains no safety requirements — the rules for working with an energised object and at the test site are set by the laboratory on the basis of a risk assessment

Frequently asked questions