Standard No.:	GB 34660-2026
English Name:	Road vehicles—Requirements and test methods of electromagnetic compatibility
Chinese Name:	道路车辆 电磁兼容性要求和试验方法
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR; SAC
Issued on:	2026-02-27
Implemented on:	2027-7-1
Status:	to be valid
Superseding:	GB 34660-2017 Road vehicles —Requirements and test methods of electromagnetic compatibility
Target Language:	English
File Format:	PDF
Word Count:	20000 words
Translation Price(USD):	600.0
Delivery:	via email in 1 business day

GB 34660-2026 Road vehicles—Requirements and test methods of electromagnetic compatibility English, Anglais, Englisch, Inglés, えいご 1 Scope This document specifies the electromagnetic emission limits and immunity of vehicles and their electrical/electronic sub-assemblies, and describes the corresponding test methods. This document is applicable to vehicles of categories M, N and L and their electrical/electronic sub-assemblies. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6113.104-2021 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only GB/T 29259-2012 Road vehicle - Electromagnetic compatibility terminology GB/T 33012.1-2016 Road vehicles - Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 1: General GB/T 33012.2-2016 Road vehicles - Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 2: Off-vehicle radiation sources GB/T 33014.1-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 1: General GB/T 33014.2-2025 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 2: Absorber-lined shielded enclosure GB/T 33014.3-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 3: Transverse electromagnetic (TEM) cell GB/T 33014.4-2025 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 4: Harness excitation methods GB/T 33014.5-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 5: Stripline GB/T 33014.11-2023 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 11: Reverberation chamber ISO 11451-2:2025 Road vehicles - Vehicle test methods for electrical disturbances from narrow band radiated electro-magnetic energy - Part 2: Off-vehicle radiation sources ISO 11451-5:2023 Road vehicles - Vehicle test methods for electrical disturbances from narrow band radiated electro-magnetic energy - Part 5: Reverberation chamber CISPR 12:2005 Vehicles, boats and internal combustion engine driven devices - Radio disturbance characteristics - Limits and methods of measurement CISPR 25:2021 Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 29259-2012 and the following apply. 3.1 electrical/electronic sub-assembly; ESA electrical/electronic equipment or assembly with associated electrical connections that can perform one or more specified functions 3.2 wiring harness power supply cables, bus system (e.g. CAN) cables, signal or active antenna cables, etc. installed in the vehicle 3.3 immunity-related functions functions related to vehicle safety that are affected by electromagnetic interference, mainly including the following contents a) functions directly related to vehicle control: ● causing degradation or change in the performance of certain devices/systems (e.g. engine, drive motor, transmission, braking system, suspension system, steering system, speed limiting device, combined driving assistance system, automated driving system, etc.); ● affecting the driver's position (e.g. seat or steering wheel positioning, etc.); ● affecting the driver's field of vision (e.g. dipped-beam headlamp, wiper, indirect vision device, forward vision assistance system, etc.); b) functions related to the protection of the driver, passengers and other road users (e.g. airbag, safety restraint system, emergency call system, etc.). c) functions that may cause misjudgment by the driver or other road users after being subjected to electromagnetic interference: ● in terms of visual signals: such as malfunction of direction-indicator lamps, stop lamps, outline marker lamps, rear position lamps, hazard warning lamp indicators, etc., as well as incorrect information on warning indicators, signal lamps or displays related to certain functions in a) or b) that can be directly observed by the driver; ● in terms of sound signals: such as malfunction of burglar alarm, horn, etc. d) functions related to the vehicle data bus, such as affecting the transmission of safety function data of relevant nodes. e) functions related to important vehicle indication and recording data after being subjected to electromagnetic interference, such as speedometer, odometer, traveling data recorder, on-board driving video recording system, etc. Note: The above list is not exhaustive, and immunity-related functions shall be adjusted according to the evolution of vehicles/technologies. 4 Requirements 4.1 General requirements 4.1.1 The design, manufacture and installation of vehicles shall meet the requirements of 4.2, 4.3 and 4.4 under normal operating conditions. For ESAs applying for type inspection and conforming to the applicability determination in Annex A, their design, manufacture and installation shall meet the requirements of 4.5, 4.6, 4.7, 4.8 and 4.9 under normal operating conditions.

Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 4.1 General requirements 4.2 Requirements for broadband electromagnetic radiation emission limits of vehicles 4.3 Requirements for narrowband electromagnetic radiation emission limits of vehicles 4.4 Requirements for electromagnetic radiation immunity of vehicles 4.5 Requirements for broadband electromagnetic radiation emission limits of ESAs 4.6 Requirements for narrowband electromagnetic radiation emission limits of ESAs 4.7 Requirements for electromagnetic radiation immunity of ESAs 4.8 Requirements for immunity of ESAs to transient conduction along power lines 4.9 Requirements for transient conducted emission limits of ESAs 4.10 Other requirements 5 Test methods 5.1 Test method for broadband electromagnetic radiation emission of vehicles 5.2 Test method for narrowband electromagnetic radiation emission of vehicles 5.3 Test method for electromagnetic radiation immunity of vehicles 5.4 Test method for broadband electromagnetic radiation emission of ESAs 5.5 Test method for narrowband electromagnetic radiation emission of ESAs 5.6 Test method for electromagnetic radiation immunity of ESAs 5.7 Test method for immunity of ESAs to transient conduction along power lines 5.8 Test method for transient conducted emissions of ESAs 6 Determination of the same type 6.1 General requirements 6.2 Technical conditions and test items for determination of the same type 7 Product conformity 7.1 General 7.2 Vehicles 7.3 ESAs 8 Implementation of this standard Annex A (Normative) Determination method for applicability of ESAs Annex B (Normative) Test for broadband electromagnetic radiation emission of vehicles B.1 General B.2 Vehicle state B.3 Test site B.4 Antenna position B.5 Test procedure Annex C (Normative) Test for narrowband electromagnetic radiation emission of vehicles C.1 General C.2 Vehicle state C.3 Test site C.4 Antenna position C.5 Test procedure Annex D (Nominative) Test for electromagnetic radiation immunity of vehicles D.1 General D.2 Vehicle state and failure criteria D.3 General test requirements D.4 ALSE method D.5 Reverberation chamber method Annex E (Nominative) Test for broadband electromagnetic radiation emission of ESAs E.1 General E.2 ESA state E.3 Test site E.4 Test procedure Annex F (Normative) Test for narrowband electromagnetic radiation emission of ESAs F.1 General F.2 ESA state F.3 Test site F.4 Test procedure Annex G (Normative) Test for electromagnetic radiation immunity of ESAs G.1 General G.2 ESA state G.3 General test requirements G.4 ALSE method G.5 TEM cell method G.6 Bulk current injection method G.7 150 mm strip line method G.8 Reverberation chamber method Annex H (Normative) Immunity test of ESAs to transient conduction along power lines Annex I (Normative) Transient conducted emission test of ESAs