IEC 60601-1-2 Edition EMC th 4 Nicholas Abbondante Chief Engineer, EMC 1 www.intertek.com Overview What is it? What are the changes? When does it matter? Home use and Life Supporting, Special Environment Risk Management Product Configuration for Testing and Operating Modes Marking and Information to User Test Voltages in 4th edition Testing – Emissions and Immunity, 3rd to 4th comparison Radiated RF Immunity 2 www.intertek.com What is it? IEC 60601-1-2 is a collateral standard to IEC 60601-1, which applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of Medical Electrical EQUIPMENT and Medical Electrical SYSTEMS in the presence of ELECTROMAGNETIC DISTURBANCES and to ELECTROMAGNETIC DISTURBANCES emitted by Medical Electrical EQUIPMENT and Medical Electrical SYSTEMS. It applies to all medical electrical devices! 3 www.intertek.com Why does EMC matter? July 29th, 1967 – USS Forrestal – 134 Killed, 161 Injured 21 aircraft destroyed, aircraft carrier damaged ($72 million; $509 million inflation adjusted) Surge caused Zuni missile to fire (but not detonate) Yes, there is a risk on aircraft… 4 www.intertek.com Potential Medical Device EMC Problems Surgical Table actuates during surgery Cardiac Defibrillator activates unexpectedly Infusion Pump changes rate of infusion ECG or BP reading changes during surgery Ventilator stops Incubator temperature incorrect Pacemaker reprogrammed Tonometer pokes patient in the eye Device gives incorrect information, - even useless! 5 www.intertek.com FDA Medical Device EMC Problems Can search FDA ‘MAUDE’ database for records of EMC issues http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfMAUDE/search.CFM Many categories which are EMC related Many cases go unreported or are not identified as EMC EMC problems are sometimes difficult to reproduce EAS systems causing defibs, to R/C cars causing implants to beep 6 www.intertek.com ME Equipment and Systems MEDICAL ELECTRICAL EQUIPMENT “ME EQUIPMENT” electrical equipment having an applied part or transferring energy to or from the patient or detecting such energy transfer to or from the patient and which is: a) provided with not more than one connection to a particular supply mains; and b) intended by its manufacturer to be used: 1) in the diagnosis, treatment, or monitoring of a patient; or 2) for compensation or alleviation of disease, injury or disability MEDICAL ELECTRICAL SYSTEM “ME SYSTEM” combination, as specified by its manufacturer, of items of equipment, at least one of which is ME EQUIPMENT to be inter-connected by functional connection or by use of a Multiple Socket-Outlet 7 www.intertek.com Historical Editions IEC 60601-1-2:2007 3rd Edition IEC 60601-1-2:2001+A1:2004 2nd Edition CENELEC EN 60601-1-2:2007 (with AC:2010) CENELEC EN 60601-1-2:2001+A1:2006 3rd edition harmonized in EU under Medical Device Directive, can be used for USA, 2nd edition no longer used without additional explanation 2nd edition still used in Japan, Brazil, some other countries 8 www.intertek.com 60601-2-X Particular Standards 60601-1-2 is modified by Particular Standards that apply to certain product types Check the scope of the particular standard to see if it applies Some contain modifications to the EMC requirements. Clause numbering varies from standard to standard. If a particular standard was written for a previous edition, it should still be considered when testing to newer editions, even though the clause numbering is different. Also appearing under ISO 80601-2-XX and IEC 80601-2-XX 9 www.intertek.com 60601-2-X Particular Standards (from 08/2012) Particular Standard Description IEC 60601-2-1 ed3.0 (2009-10) Electron Accelerators 1-50 Mev IEC 60601-2-2 ed5.0 (2009-02) HF Surgical Equipment IEC 60601-2-3 ed3.0 (2012-04) Short-wave Therapy Equipment IEC 60601-2-4 ed3.0 (2010-12) Cardiac Defibrillators IEC 60601-2-5 ed3.0 (2009-07) Ultrasonic Physiotherapy Equipment IEC 60601-2-6 ed2.0 (2012-04) Microwave Therapy Equipment IEC 60601-2-7 ed2.0 (1998-02) X-ray Generators IEC 60601-2-8 ed2.0 (2010-11) Therapeutic X-ray 10kV to 1 MV IEC 60601-2-10 ed2.0 (2012-06) IEC 60601-2-11 ed2.0 (1997-08) +am1 (2004-07) ISO 80601-2-12 ed1.0 (2011-04) Nerve and Muscle Stimulators Gamma Beam Therapy Equipment Critical Care Ventilators ISO 80601-2-13 ed1.0 (2011-08) Anaesthetic Systems IEC 60601-2-16 ed4.0 (2012-03) Haemodialysis Equipment IEC 60601-2-17 ed2.0 (2004-01) Brachytherapy Afterloading Equipment IEC 60601-2-18 ed3.0 (2009-08) Endoscopic Equipment IEC 60601-2-19 ed2.0 (2009-02) Infant Incubators IEC 60601-2-20 ed2.0 (2009-02) Infant Transport Incubators IEC 60601-2-21 ed2.0 (2009-02) Infant Radiant Warmers IEC 60601-2-22 ed3.0 (2007-05) Laser Equipment IEC 60601-2-23 ed3.0 (2011-02) Transcutaneous Partial Pressure Monitoring IEC 60601-2-24 ed1.0 (1998-02) Infusion Pumps and Controllers IEC 60601-2-25 ed2.0 (2011-10) Electrocardiographs IEC 60601-2-26 ed3.0 (2012-05) Electroencephalographs IEC 60601-2-27 ed3.0 (2011-03) Electrocardiographic Monitoring Equipment 10 www.intertek.com 60601-2-X Particular Standards (from 08/2012) IEC 60601-2-28 ed2.0 (2010-03) X-ray Tube Assemblies IEC 60601-2-29 ed3.0 (2008-06) Radiotherapy Simulators IEC 80601-2-30 ed1.0 (2009-01) Automated Non-Invasive Sphygmomanometers IEC 60601-2-31 ed2.1 (2011-09) External Cardiac Pacemakers internally powered IEC 60601-2-32 ed1.0 (1994-03) Associated Equipment to X-ray Systems IEC 60601-2-33 ed3.0 (2010-03) MR Equipment IEC 60601-2-34 ed3.0 (2011-05) IBP Monitoring Equipment IEC 80601-2-35 ed2.0 (2009-10) Blankets, Pads and Matresses, Intended for Heating in Medical Use IEC 60601-2-36 ed1.0 (1997-03) Extracorporeally Induced Lithotripsy IEC 60601-2-37 ed2.0 (2007-08) Ultrasonic Medical Diagnostic and Monitoring IEC 60601-2-39 ed2.0 (2007-11) Peritoneal Dialysis Equipment IEC 60601-2-40 ed1.0 (1998-02) Electromyographs and Evoked Response Systems IEC 60601-2-41 ed2.0 (2009-08) Surgical Luminaires IEC 60601-2-43 ed2.0 (2010-03) X-ray for Interventional Procedures IEC 60601-2-44 ed3.0 (2009-02) X-ray for CT IEC 60601-2-45 ed3.0 (2011-02) X-ray for Mammomagraphic Steriotactic Devices IEC 60601-2-46 ed2.0 (2010-12) Operating Tables IEC 60601-2-47 ed2.0 (2012-02) Ambulatory ECG Systems IEC 60601-2-49 ed2.0 (2011-02) Multifunction Patient Monitoring Equipment IEC 60601-2-50 ed2.0 (2009-03) Infant Phototherapy Equipment IEC 60601-2-52 ed1.0 (2009-12) Medical Beds IEC 60601-2-54 ed1.0 (2009-06) X-ray for Radiography and Radioscopy ISO 80601-2-55 ed1.0 (2011-12) Respiratory Gas Monitors ISO 80601-2-56 ed1.0 (2009-10) Clinical Thermometers for Body Temperature Measurement IEC 60601-2-57 ed1.0 (2011-01) Non-laser Light Source Equipment ISO 80601-2-61 ed1.0 (2011-04) Pulse Oximeters 11 www.intertek.com What are the differences? Removal of the “Life-Supporting” device category Introduction of the “Home Healthcare”, “Professional Healthcare Facility”, and “Special” environments Reformatting the immunity test requirements into tables by port to align with other immunity standards Increased test levels for various immunity tests Increased immunity test levels to take into account radio devices used in close proximity and guidance on determination of immunity levels in the “Special” environment Guidance on adjustment of immunity test levels, determining immunity pass/fail criteria, and risk management 12 www.intertek.com When does it matter? Date of Withdrawal of EN 60601-1-2:2007 3rd Edition: December 31st, 2018 FDA is currently accepting and prefers 4th edition; 4th edition will be required after April 1, 2017. All versions including 4th edition operative under CB Scheme, but only certain versions accepted by specific CB Scheme members • Austria, Belgium, France, Germany, Hungary Singapore, Spain, Sweden, Switzerland, and USA have NCBs who are accepting 4th edition 13 www.intertek.com Life-Supporting ME Equipment LIFE-SUPPORTING ME EQUIPMENT or ME SYSTEM ME EQUIPMENT or ME SYSTEM that includes at least one FUNCTION that is intended to actively keep alive or resuscitate PATIENTS and the failure of which to comply with the requirements of 6.2.1.10 is likely to lead to serious injury or death of a PATIENT 14 www.intertek.com Professional Healthcare Facility Environment PROFESSIONAL ME EQUIPMENT or ME SYSTEM ME EQUIPMENT or ME SYSTEM for use by healthcare professionals and that is not intended for sale to the general public (3rd edition) Examples (4th edition): Physician offices, dental offices, clinics, limited care facilities, freestanding surgical centers, freestanding birthing centers, multiple treatment facilities, hospitals (emergency rooms, patient rooms, intensive care, surgery rooms except near HF SURGICAL EQUIPMENT, outside the RF shielded room of an ME SYSTEM for magnetic resonance imaging) 15 www.intertek.com Home Healthcare Environment HOME HEALTHCARE ENVIRONMENT (IEC 60601-1-11) dwelling place in which a PATIENT lives or other places where PATIENTS are present, excluding professional healthcare facility environments where OPERATORS with medical training are continually available when PATIENTS are present Examples: Restaurants, cafes, shops, stores, markets, schools, churches, libraries, outdoors (streets, sidewalks, parks), domiciles (residences, homes, nursing homes), vehicles (cars, buses, trains, boats, planes, helicopters), train stations, bus stations, airports, hotels, hostels, pensions, museums, theatres 16 www.intertek.com Special Environment SPECIAL ENVIRONMENT ELECTROMAGNETIC ENVIRONMENT with electromagnetic characteristics different from those specified in this collateral standard in Table 2 through Table 9 or that requires EMISSIONS limits, IMMUNITY TEST LEVELS or test methods that are different from those specified for the professional healthcare facility environment and the HOME HEALTHCARE ENVIRONMENT Military areas (submarines, near radar installations, near weapons control systems), heavy industrial areas (power plants, steel and paper mills, foundries, automotive and appliance manufacturing, smelting and mining operations, oil and gas refineries), medical treatment areas with high-powered ME EQUIPMENT (HF SURGICAL EQUIPMENT, SHORT-WAVE THERAPY EQUIPMENT, inside the RF shielded room of an ME SYSTEM for magnetic resonance imaging) 17 www.intertek.com Risk Management RISKS resulting from reasonably foreseeable ELECTROMAGNETIC DISTURBANCES shall be taken into account in the RISK MANAGEMENT PROCESS. • Specific, detailed immunity pass/fail criteria based on part two standards or risk management for basic safety and essential performance related to EMC • Determination of how the product will be monitored to demonstrate compliance with the Immunity pass/fail criteria • Immunity pass/fail criteria may specify degradations that are acceptable because they do not result in unacceptable risk • Justification for any special increased or reduced test levels Risk Management Guidance: Annex F Test Plan Guidance: Annex G 18 www.intertek.com Operating Modes Emissions Testing Modes that maximize emissions Active and standby modes should be considered Immunity Testing Modes and settings most likely to result in unacceptable risk, as determined by the manufacturer via risk analysis, experience, engineering analysis, or pretesting Standby mode should be considered Devices not rated for continuous use can use a duty cycle Documented in Test Plan and Test Report 19 www.intertek.com Product Configuration for Testing • Representative configuration consistent with intended use • Most likely to result in unacceptable risk • Determined by the manufacturer using risk analysis, experience, engineering analysis, or pretesting • All cables, tubing, and fluid containers necessary for the intended use must be attached and full, including system grounds when present • Terminated with the intended equipment or by an appropriate simulator • Artificial hand circuit (220pF + 510Ω) attached to all handheld and patient coupled parts, consistent with intended use • AC Line Conducted Emissions, Electrical Fast Transients, and Conducted RF Immunity • Special hardware or software may be required 20 www.intertek.com Permanently Installed Systems Approaches to testing • Tested on a test site as a system • Tested on a test site on a subsystem basis • Test in situ Group 1 devices may meet the emissions limits specified for a test site when tested in situ Some permanently installed systems are exempt from full Radiated RF Immunity testing, testing with walkie-talkies, cellphones, RFID, and ISM bands in situ 21 www.intertek.com Markings A warning is required for devices specified for use in a shielded location stating this fact The intentional radiator mark has been removed The ESD mark has been removed 22 www.intertek.com Information to User Instructions for Use • Intended environment and exclusions for that environment • Essential performance and user expectation during loss of performance • Portable RF communications equipment safe distance warning • Class A device warning Technical Description • Compliance for each EMC test, all deviations, and all necessary instructions for maintaining basic safety and essential performance for the expected service life • Frequency of operation, modulation, radiated power • Additional statements for shielded rooms, large systems, and HF surgical compatibility 23 www.intertek.com Test AC Voltage and Power Frequency Test 3rd Edition 4th Edition AC Emissions, Cispr 11 Nominal Any Radiated Emissions, Cispr 11 Nominal Any Harmonics, IEC 61000-3-2 230V/50Hz (sometimes 100V/50Hz and 100V/60Hz) or rated voltage Rated single voltage or 230V for Single-phase 400V for 3-phase, 50 or 60 Hz Voltage Fluctuations and Flicker, IEC 61000-3-3 230V/50Hz or rated voltage Rated single voltage or 230V for Single-phase 400V for 3-phase, 50 or 60 Hz 24 www.intertek.com Test AC Voltage and Power Frequency Test 3rd Edition 4th Edition Electrostatic Discharge, IEC 61000-4-2 Any Any Radiated RF Immunity, IEC 61000-4-3 Any Any Electrical Fast Transients/Burst, IEC 61000-4-4 Lowest and Highest Rated Voltage, any frequency Any Surge, IEC 61000-4-5 Lowest and Highest Rated Voltage, any frequency Any 25 www.intertek.com Test AC Voltage and Power Frequency Test 3rd Edition 4th Edition Conducted RF Immunity, IEC 61000-4-6 Any Any Power Frequency Magnetics, IEC 61000-4-8 Any Voltage, 50 and 60 Hz Any Voltage, either 50 or 60 Hz Voltage Dips, Dropouts, and Interruptions, IEC 61000-4-11 Min and Max Rated Voltage, Minimum Power Frequency If rated voltage range <25% of lowest rated voltage, any one voltage. Otherwise, lowest and highest rated voltage 26 www.intertek.com A Note about Voltages… Regulators can supersede the standard! Notable examples: Korea – 220V/60Hz Japan – 100V/50Hz and 100V/60Hz Brazil – 127V/60Hz and 220V/60Hz 27 www.intertek.com Testing, Emissions – Professional Medical Equipment Radiated and Conducted RF Emissions – Cispr 11 • Shielded locations: increase Cispr limit based on shielding effectiveness • X-rays in intermittent mode can increase quasi-peak limits by 20 dB • Professional Medical Equipment can meet Class A or B • Type A Medical Professional Devices – removed! Simple Electrical components (Motors, drills, switches) – Cispr 14 • Only standalone devices – systems must meet Cispr 11 Lighting Equipment – Cispr 15 – Removed! Multimedia Equipment – Cispr 32 Exempt from IEC 61000-3-2 Harmonics and IEC 61000-3-3 Flicker unless it is intended to be connected to a publics mains network 28 www.intertek.com Testing, Emissions – Home Healthcare Devices Radiated and Conducted RF Emissions – Cispr 11 • Equipment intended for use in aircraft • ISO 7137 • RTCA DO-160 • EUROCAE ED-14 • Equipment intended for automotive use • Cispr 25 • ISO 7637-2 • Other standards may apply based on environment Harmonics per IEC 61000-3-2, Flicker per IEC 61000-3-3 • >220V, <16A only • Japan: 100V/50Hz and 100V/60Hz, <16A 29 www.intertek.com Immunity Testing IEC 61000-4-2 Electrostatic Discharge IEC 61000-4-3 Radiated RF Immunity IEC 61000-4-4 Electrical Fast Transients/Bursts IEC 61000-4-5 Surge IEC 61000-4-6 Conducted RF Immunity IEC 61000-4-8 Magnetics IEC 61000-4-11 Voltage Dips and Interruptions ISO 7637-2 Electrical Transient Conduction Along Supply Lines (DC) Emergency Medical Services devices classified as home healthcare Devices used in aircraft or other environments should meet additional standards such as RTCA DO-160G, ISO 7637-2, etc 30 www.intertek.com Electrostatic Discharge, IEC 61000-4-2 Test 3rd Edition 4th Edition Contact Discharges ±2, 4, 6 kV ±2, 4, 8 kV Air Discharges ±2, 4, 8 kV ±2, 4, 8, 15 kV Discharges are applied to the patient coupling port with no connection to artificial hand or patient simulation; device checked afterwards for pass/fail On I/O ports, contact discharges are applied to the connector shell, and for insulated connector shells, air discharges are applied only to the shell and any pins which can be contacted or touched 31 www.intertek.com Radiated RF Immunity, IEC 61000-4-3 Test 3rd Edition 4th Edition Enclosure 3V/m, Life Support: 10V/m 3V/m, Home: 10V/m 80% AM at 1 kHz or 2 Hz 80% AM at 1 kHz or risk frequency 80 MHz – 2500 MHz 80 MHz – 2700 MHz Test voltage is before modulation is applied Dwell time is based on the settling time of the test system and the adequate time for the device under test to be exercised and be affected Exclusion band for RF receivers applies, but basic safety and essential performance must be maintained Proximity fields from RF wireless communications equipment and special environments must be considered 32 www.intertek.com Radiated RF Immunity, IEC 61000-4-3 RF Wireless Communications Equipment Max Test Modulation Power Level (W) (V/m) Test (MHz) Band (MHz) Service 385 380 – 390 TETRA 400 Pulse 18 Hz 1.8 27 450 430 – 470 GMRS 460, FRS 460 FM ±5 kHz 1 kHz sine 2 28 704 – 787 LTE Band 13, 17 Pulse 217 Hz 0.2 9 800 – 960 GSM 800/900; TETRA 800; iDEN 820; CDMA 850; LTE Band 5 Pulse 18 Hz 2 28 710 745 780 810 870 930 33 www.intertek.com Radiated RF Immunity, IEC 61000-4-3 RF Wireless Communications Equipment Test (MHz) 1720 1845 Service 1700 – 1990 GSM 1800; CDMA 1900; GSM 1900; DECT; LTE Band 1, 3, 4, 25; UMTS Pulse 217 Hz 2 28 2400 – 2570 Bluetooth; WLAN; 802.11b/g/n; RFID 2450; LTE Band 7 Pulse 217 Hz 2 28 5100 – 5800 WLAN 802.11a/n Pulse 217 Hz 0.2 9 1970 2450 5240 5500 Max Test Modulation Power Level (W) (V/m) Band (MHz) 5785 34 www.intertek.com Radiated RF Immunity, IEC 61000-4-3 RF Wireless Communications Equipment Not all radio services are included. Risk Management should determine which services are applicable to a particular device. Automotive and Aircraft standards can include higher levels To declare closer distances than 30cm, testing at higher levels is required using 2 Watt radiated power P converted to 10 cm distance d gives E = 84 V/m 35 www.intertek.com Electrical Fast Transients/Bursts, IEC 61000-4-4 Test 3rd Edition 4th Edition AC Mains or DC Input ±2kV, 5 kHz PRF ±2 kV, 100 kHz PRF I/O Ports ±1 kV, 5 kHz PRF ±1 kV, 100 kHz PRF Artificial hand attached to all handheld and patient coupled parts, consistent with intended use Cables less than 3m in length are exempt 36 www.intertek.com Surges, IEC 61000-4-5 Test 3rd Edition 4th Edition AC Mains, Line to Ground ±0.5, 1, 2 kV ±0.5, 1, 2 kV AC Mains, Line to Line ±0.5, 1 kV ±0.5, 1 kV DC Input (>3m), Line to Ground No test ±0.5, 1, 2 kV DC Input (>3m), Line to Line No test ±0.5, 1 kV I/O, Line to Ground No test ±2 kV (outdoor lines only) The option to test only at 0º, 90º, 270º, or 90º, 180º, 270º phase angles was not carried over to the 4th edition! 37 www.intertek.com Conducted RF Immunity, IEC 61000-4-6 Test 3rd Edition 4th Edition AC Mains 3V, Life Support: 10V ISM 3V with 6V ISM, Home: 6V Amateur 1 kHz or 2 Hz 80% AM 80% AM at 1 kHz or risk frequency 150 kHz – 80 MHz 150 kHz – 80 MHz DC & I/O & Patient Coupled (>3m) 3V, Life Support: 10V ISM 3V with 6V ISM, Home: 6V Amateur 1 kHz or 2 Hz 80% AM 80% AM at 1 kHz or risk frequency 150 kHz – 80 MHz 150 kHz – 80 MHz RMS voltage, before modulation is applied. FDA has not accepted 3m exclusion Artificial hand attached to all handheld and patient coupled parts, consistent with intended use Patient tubes intentionally filled with a conductive liquid are patient coupled cables 38 www.intertek.com Power Frequency Magnetics, IEC 61000-4-8 Test 3rd Edition 4th Edition Enclosure 3 A/m, 50 and 60 Hz 30 A/m, 50 or 60 Hz Tested in X, Y, and Z axes Can be waived due to a justification that there are no magnetic components Assumes a minimum distance of 15 cm to magnetic source in actual usage 39 www.intertek.com Voltage Dips, Dropouts, and Interruptions, IEC 61000-4-11 Test 3rd Edition 4th Edition Voltage Dips (<16A) >95% dip, 0.5 periods, 0º and 180º 100% drop, 0.5 periods, 0º, 45º, 90º, 135º, 180º, 225º, 270º, 315º 100% dip, 1 period 30% dip, 25/30 periods 60% dip, 5 periods 30% dip, 25 periods Voltage Interruptions >95% drop, 5 seconds 100% drop, 5 seconds (all input current) Voltage interruptions shall be applied to all phases simultaneously Systems intended for use with an AC to DC converter shall be tested with a converter which meets the manufacturer’s specification 40 www.intertek.com Conclusions 4th edition compliance is not required yet, but will be by the end of a 2-3 year development cycle Retesting is necessary as many requirements have been increased Testing for 4th edition is not completely backwards compatible with 3rd edition It is important to consider EMC during the risk management process and to make sure that the EMC testing addresses basic safety and all identified risks 41 www.intertek.com Resources on EMC and 4th Edition Right click on the IMAGE and select “open link” to access: Learn Market Trends Based on Intertek’s Recent Experience with FDA and 4th Edition “Testing Wireless Devices for EMC”, Medical Design Briefs Or visit our website at www.intertek.com/4thEdition for the latest information 42 th Top 4 Edition FAQs “Address Security & EMC Compliance in Your Connected Device”, Medical Device Technology www.intertek.com Questions Valued Quality. Delivered. 43 www.intertek.com