Introduction：

This article mainly introduces the GB/T 17743-2021 new version of the EMC standard for lamps and lanterns compared to the GB/T 17743-2017 version of the updated content, and lists the scope of applicable lamps and lanterns and the list of inapplicable lamps and lanterns products of the new version of the 2021 standard.

GB/T 17743 The latest standard classification information:

  • China Standard No.: GB/T 17743-2021
  • Foreign standard number: CISPR15:2018
  • Chinese standard name: Limits and measurement methods for radio nuisance characteristics of electrical lighting and similar equipment
  • English Standard Name: Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
  • Release date: 2021-12-31
  • Implementation date: 2022-07-01
  • Alternative standards:GB/T 17743-2017

GB/T 17743-2021 New version of EMC standard for lamps and lanterns updated content:

This document escrows GB/T 17743-2017 Limits and Measurement Methods of Radio Nuisance Characteristics of Electrical Lighting and Similar Preparations.

Compared with GB/T17743-2017, except for structural adjustments and editorial changes, the main technical changes are as follows.

1.1,(a) The scope chapter removes the constraints on the use of power supplies and battery operation for appliances (see Chapter 1, Chapter 1 of the 2017 edition).

1.2,Introducing three basic ports: the enclosure port, the local wired port, and the wired network port (see 3.4.6, 3.4.10, 3.4.14, Chapter 4, Chapter 5, Appendix D).

1.3,Introduction of radiated nuisance limits in the frequency range 300 MHz to 1 GHz (see Chapter 4, 4.4.2 of the 2017 edition).

1.4,Modified load terminal limits with CDNE (alternative method of radiated emission) limit expression (see 4.3.2 of the 2017 version of Chapter 4) - Addition of current probe measurement methods and limits for various ports (in addition to voltage limits and measurement methods) (see Chapter 4).

  • -For large EUTs (>1.6 m), increase the use of 60 cm loop antenna magnetic field measurements at a distance of 3 m (CISPR14-1).
  • methods). As an alternative to 3m and 4m loop antenna systems (LLAS) (see 452).
  • Deletion of the insertion of the loss requirement and its correlation in Appendix A (see 4.2, Chapters 5 and 7, Appendix A of the 2017 version).
  • Introduced the term "module" (replacing stand-alone annex) and the measurement requirements for the use of host (reference) system modules (see 6.4); - Modified the specification of the stabilization time of the EUT (see 6.5.3 of the 7.8.2017 edition).
  • -Replaced Appendix B (CDNE) with the CISPR16 series of relevant test methods by making appropriate reference to the CISPR16 series of standards.
  • Test methods (see Appendix B of 9.3.4.4. 2017 Edition).
  • A new methodology for the measurement of conducted nuisance for GU1O self-ballasted lamps has been added (see A1).
  • -Modified requirements for metal holes in tapered enclosures (see Figure A2, Figure 7 in the 2017 edition).
  • This document is equivalent to the adoption of CISPR 15:2018 (Limits and methods of measurement of radio-nuisance characteristics of electrical lighting and similar equipment)

GB/T 17743-2021 Which electronic products are applicable to test?

GB/T 17743-2021 Applies to the following equipment emitting (radiated and conducted) radio frequency nuisance

  • -lighting equipment (3.3.16).
  • -One of the main functions is to illuminate the lighting part of the multifunctional equipment.

Note 1:Examples include lighting equipment for visible light communication and entertainment lighting.

  • -Ultraviolet and infrared radiation equipment for residential and non-industrial applications.
  • -Announcement signs.

Note 2:Examples have neon style advertising signs.

    • -Decorative lighting.
    • -Emergency signs.

Products not covered by the requirements of GB/T 17743-2021.

  • -Components or modules intended to be installed in lighting fixtures and not replaceable by the user.

NOTE 3: See CISPR30 (all sections) for internally mounted controls.

  • -Operates in the industrial, scientific and medical frequency bands [defined in ITU Radio Regulation 63 (1979)].
  • -Lighting equipment for aircraft and airports (runways, services, platforms).
  • -Video logo.
  • -mounting parts.
  • Appliances for which the requirements for electromagnetic compatibility in the RF range are specified in other CISPR standards, even if they have a built-in lighting function.

Note 4: Examples of exclusions are.

  • -Built-in luminaires for display backlighting, dial illumination and signaling: -Built-in luminaires for display backlighting, dial illumination and signaling.
  • SSL display.
  • Hoods, refrigerators, freezers.
  • Photocopiers, slide projectors.
  • Lighting equipment for road motor vehicles (within the scope of CISPR12)
  • The frequency range covered is from 9 kHz to 400 GHz, and at frequencies for which no limits are specified in this document, multifunctional equipment to which different clauses of this document and/or other standards apply at the same time need not be subjected to any test, and the relevant functions need to be operated in a manner that satisfies the provisions of each clause or standard.
  • For equipment outside the scope of this document for which lighting is a secondary function, the lighting function does not need to be evaluated separately under this document as long as the lighting function is operated at the time of evaluation under its applicable standard. Note 5: Examples of lighting as a secondary function of a product are range hoods, electric fans, refrigerators, freezers, ovens and televisions with ambient lighting.
  • The radiated emission requirements in this document do not apply to intentional transmissions from radio transmitters as defined by the ITU, nor do they apply to any spurious emissions associated with these intentional transmissions.
  • When references are made herein to "lighting equipment" and "EUT", they are references to electrical lighting and similar equipment included within the scope of the provisions of this document.
  • The above is our company organized GB/T 17743-2021 compared to the 2017 version of the standard updates, if you need to know more about the standard updates please contact the National Standards Committee to buy the original standard literature to view.