Standard No.:	GB/T 22359.2-2022
English Name:	Earth-moving and building construction machinery—Electromagnetic compatibility（EMC）of machines with internal electrical power supply— Part 2: Additional EMC requirements for functional safety
Chinese Name:	土方机械与建筑施工机械 内置电源机器的电磁兼容性（EMC） 第2部分：功能安全的EMC附加要求
Professional Classification:	GB    National Standard
Issued by:	SAMR and SAMR
Issued on:	2022-10-12
Implemented on:	2022-10-12
Status:	valid
Superseding:	GB/T 22359-2008 Earth-moving machinery - Electromagnetic compatibility
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.0
Delivery:	via email in 1~3 business day

1 Scope This document specifies test methods and acceptance guidelines for assessing the electromagnetic compatibility (EMC) of earth-moving machinery as defined in GB/T 8498-2017 and the following building construction machinery as defined in ISO/TR 12603; 2010: Drilling and foundation construction equipment; Concrete and mortar preparation, conveying and compaction equipment and reinforcing steel processing equipment. Road construction and maintenance machinery and equipment. This document covers the EMC requirements related to the functional safety of mechanical, electrical/electronic devices (ESA) and ESA components separated from machinery. This document applies only to safety-related components of control systems (SRP/CS) as defined in GB/T 16855.1-2018, where the electrical/electronic devices used meet the design requirements for a safety performance level PL of b greater than or equal to that specified in GB/T 16855.1-2018. It also covers electrical/electronic devices (ESA) and individual ESA components that meet the requirements of PL class b and are intended to be installed on machinery. The following electromagnetic disturbance phenomena are assessed: Electromagnetic fields radiated from non-airborne sources with different field strengths and frequencies EMFs emitted from on-board sources (internal and external to the antenna) with different field strengths and frequencies; Electrostatic discharges; Conducted and coupled electrical transients. Machinery may be powered by DC, AC or a combination of both as an internal power system. This document does not apply to machinery powered by an external grid or to equipment used as a military application. Note:IEC 61000 covers machines powered by grid-connected electricity. 2 Normative references The contents of the following documents constitute essential provisions of this document by means of normative references in the text. Where a reference is dated, only the version corresponding to that date applies to this document; where a reference is not dated, the latest version (including all amendment sheets) applies to this document. GB/T 8498-2017 Earthmoving machinery - Basic type identification terms and definitions (ISO 6165: 2012, IDT) GB/T 15706-2012 General Principles for Safety Design of Machinery - Risk Assessment and Risk Reduction (ISO 12100:2010, IDT) GB/T 16855.1-2018 Safety Related Components of Machine Safety Control Systems Part 1: General Principles for Design (ISO 13849-1:2015, IDT) GB/T 22359.1-2022 Earth moving machinery and construction machinery - Electromagnetic compatibility (EMC) of built-in power supply machines - Part 1 Sub: General EMC requirements under typical electromagnetic environment conditions (ISO13766-1:2018. IDT) GB/T34353-2017 Performance Criteria and Tests for Functional Safety of Machine Control Systems (MCS) with Electronic Components for Earth moving Machinery (ISO 15998: 2008, IDT) ISO 7637-1:2015 Road vehicles - Electrical disturbances from conduction and coupling - Part 1: Definitions and general considerations Note: GB/T 21437.1-2021 Road Vehicles - Electrical/Electronic Components - Test Methods for Electrical Disturbance Induced by Conduction and Coupling - Part 1: Definitions and General Provisions (ISO 7637-1: 2015, MOD) ISO7637-3:2016 Road vehicles - Electrical dist urbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines Note: GB/T 21437.3-2021 Road Vehicles - Electrical/Electronic Components - Test Methods for Electrical Disturbance Caused by Conduction and Coupling - Part 3: Immunity to Electrical Properties Coupled to Non power Lines (Iso 7637-3: 2016. MOD) ISO 10605:2008 Road vehicles - Test methods for eletrical disturbances from electrostatic discharge) Note: GB/T19951-2019 Test Method for Immunity of Electrical/Electronic Components of Road Vehicles to Electrostatic Discharge (ISO10605:2008, MOD) ISO11451-2:2015 Road vehicles -- Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy -- Part 2; off vehicle radiation sources 3 Terms and definitions GB/T 8498-2017, ISO/TR 12603;2010, GB/T 22359.1-2022 and GB/T 16855.1-2018 and the following terms and definitions apply to this document. and the following terms and definitions apply to this document. 3.1 The sum of the common mode currents in a high current bulk current harness. 3.2 PMpulse modulation pulse modulation. 3.3 AMamplitude modulation amplitude modulation. 3.4 Fail safe; FS A machine or control system using electrical/electronic devices whose associated "safe behaviour enters a safe state as defined in GB/T 16855.1-2018. 4 General rules The functional safety of machinery and systems is adequately specified in other relevant standards. However, these standards do not consider the following two common issues: The specific effects of electromagnetic fields on earth-moving and building construction machinery; The impact of electromagnetic compatibility (EMC) phenomena on the functional safety of control devices using electrical/electronic devices that are relevant to machine safety. The impact of EMC phenomena on the functional safety of control devices using electrical/electronic devices and related to machine safety. The electromagnetic compatibility (EMC) phenomena referred to in this document need to be assessed in terms of their impact on the functional safety of machine controls. The assessment is based on all similar phenomena that have occurred and are known to be technically significant. The performance parameters associated with such phenomena are therefore equivalent to the performance indicators (orders of magnitude) of existing non-military technologies. In order to verify that the machine is capable of maintaining the manufacturer's intended function or converting to the safe state conditions specified in GB/T 16855.1-2018, for safety performance level PL. requirements are greater than or equal to level b as specified in GB/T 16855.1-2018 and all functional tests should be carried out in accordance with the levels specified in chapter 5. For ESA testing, it is necessary to determine the performance of the device under test against interference failures at the level of the whole machine, for example, where an erroneous signal from the controller could lead to a loss of braking or steering. 5 Electromagnetic compatibility (EMC) phenomena 5.1 General The electrical and high frequency disturbances described in this document refer to electromagnetic effects due to technical applications (human effects). These electromagnetic effects can usually be considered as single and additional and are restricted to narrow areas. 5.1.1 Whole machine performance criteria If the safety-related functions of the machine operate as intended, or are converted to the specified safety state, in accordance with the test requirements of 5.2, the performance requirements are judged to be met. 5.1.2 Safety-related ESA performance criteria If the safety-related functions of the ESA or separate ESA components are tested in accordance with the requirements of 5.3, the performance requirements are judged to be met if the safety-related functions of the ESA or separate ESA components operate as intended or are converted to the specified safety state for application on machinery. 5.2 Mechanical immunity 5.2.1 Mechanical immunity to electromagnetic fields from non-airborne radiation sources The mechanical immunity of machinery exposed to electromagnetic fields from non-airborne sources is shown in Table 1 and shall be tested in accordance with all frequency ranges given in Table 1. If BCI tests are performed on machinery, they shall be carried out in the frequency range 20 MHz to 1 000 MHz in accordance with Table 1 and in accordance with the requirements of ISO 11451-4;2013. For the frequency range above 1 GHz, the immunity test method for electromagnetic radiation shall be used. If the immunity test method for electromagnetic radiation is chosen, horizontal and vertical polarisation shall be used. The test levels given in Table 1 apply to single sample tests; they can be reduced by 20% if multiple sample tests (number of samples ≥ 2) are carried out. 5.2.2 Immunity of machinery to electromagnetic fields from on-board radiation sources If there is a clear indication that machinery is fitted with an airborne radiation source, it is appropriate to assess it at maximum output power. Note: For airborne transmitters, refer to ISO 11451-3:2015 for further guidance. 5.2.3 Electrical transient immunity on power cables and other harnesses of machinery The known effects of mechanical electrical transient immunity on power cables and other harnesses are only at the ESA level and only apply to the tests specified in 5.3.3. 5.2.4 Mechanical Electrostatic Discharge (ESD) Immunity The immunity of machinery exposed to electrostatic discharge (ESD) phenomena is shown in Table 2. The acceptance standard for all ESD tests is "A" or "FS". 5.3 ESA immunity 5.3.1 ESA immunity to electromagnetic fields from non-airborne radiation sources The immunity of ESAs exposed to radiated electromagnetic fields from non-airborne sources is shown in Table 3 and should be tested for all frequency ranges given in Table 3. In order to cover the entire frequency range it is necessary to apply a combination of at least two test methods, but it is not necessary to apply all the test methods listed. The test levels given in Table 3 apply to single sample tests; they may be reduced by 20% if multiple sample tests (sample size ≥ 2) are performed. 5.3.2 ESA immunity to electromagnetic fields from airborne radiation sources If there is a clear indication that tests of airborne radiation sources must be carried out, it is advisable that transmitters mounted to machinery are installed as close as possible to the ESA and are evaluated at maximum output power. Note: For airborne transmitters, refer to ISO 11452-9:2012 for further guidance. 5.3.3 ESA immunity to electrical transients on the harness Electrical transients caused by switching of capacitive or inductive loads coupled directly to the power supply circuit, as per 4.9.4 of GB/T 22359.1-2022. The immunity test for wire harnesses other than power harnesses shall be in accordance with the requirements of ISO 7637-1:2015 and ISO 7637-3;2016. 5.3.4 ESA electrostatic discharge (ESD) immunity The immunity of mechanical ESAs exposed to electrostatic discharge (ESD) phenomena is shown in Table 4. The acceptance criterion for all ESD tests is "A" or "FS" (functional class A or defined safe state). 6 Test report Chapter 6 of GB/T 22359.1-2022 applies. The test report shall include the relevant requirements of this document and may be combined with the test report of GB/T 22359.1-2022. Deviations from undisturbed functions (including all modes of operation of safety-related functions), as well as any transition to the specified safety state, shall be recorded in the test report. Appendix A (informative) Installation and maintenance aspects

1 Scope 2 Normative references 3 Terms and definitions 4 General rules 5 Electromagnetic compatibility (EMC) phenomena 6 Test report Appendix A (informative) Installation and maintenance aspects