{"id":417249,"date":"2024-10-20T06:15:05","date_gmt":"2024-10-20T06:15:05","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-62109-12010-2\/"},"modified":"2024-10-26T11:37:49","modified_gmt":"2024-10-26T11:37:49","slug":"bs-en-62109-12010-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-62109-12010-2\/","title":{"rendered":"BS EN 62109-1:2010"},"content":{"rendered":"

1.1 Scope<\/b><\/p>\n

This part of IEC 62109 applies to the power conversion equipment (PCE) for use in Photovoltaic (PV) systems where a uniform technical level with respect to safety is necessary. This standard defines the minimum requirements for the design and manufacture of PCE for protection against electric shock, energy, fire, mechanical and other hazards.<\/p>\n

This standard provides general requirements applicable to all types of PV PCE. There are additional parts of this standard that provide specific requirements for the different types of power converters, such as Part 2-inverters. Additional parts may be published as new products and technologies are commercialised.<\/p>\n

1.1.1 Equipment included in scope<\/b><\/p>\n

This standard covers PCE connected to systems not exceeding maximum PV source circuit voltage of 1 500 V d.c. The equipment may also be connected to systems not exceeding 1 000 V a.c. at the a.c. mains circuits, non-mains a.c. load circuits, and to other DC source or load circuits such as batteries. This standard may be used for accessories for use with PCE, except where more appropriate standards exist.<\/p>\n

Evaluation of PCE to this standard includes evaluation of all features and functions incorporated in or available for the PCE, or referred to in the documentation provided with the PCE, if such features or functions can affect compliance with the requirements of this standard.<\/p>\n

1.1.2 Equipment for which other requirements may apply<\/b><\/p>\n

This standard has not been written to address characteristics of power sources other than photovoltaic systems, such as wind turbines, fuel cells, rotating machine sources, etc.<\/p>\n

\n

NOTE 1 Requirements for other sources may be incorporated in the IEC 62109 series in the future.<\/p>\n<\/blockquote>\n

Additional or other requirements are necessary for equipment intended for use in explosive atmospheres (see IEC 60079), aircraft, marine installations, electromedical applications (see IEC 60601) or at elevations above 2 000 m.<\/p>\n

\n

NOTE 2 Requirements are included for adjustment of clearance distances for higher elevations, but not for other factors related to elevation, such as thermal considerations<\/p>\n<\/blockquote>\n

1.2 Object<\/b><\/p>\n

1.2.1 Aspects included in scope<\/b><\/p>\n

The purpose of the requirements of this part of IEC 62109 is to ensure that the design and methods of construction used provide adequate protection for the operator and the surrounding area against:<\/p>\n

    \n
  1. \n

    electric shock and energy hazards;<\/p>\n<\/li>\n

  2. \n

    mechanical hazards;<\/p>\n<\/li>\n

  3. \n

    excessive temperature hazards;<\/p>\n<\/li>\n

  4. \n

    spread of fire from the equipment;<\/p>\n<\/li>\n

  5. \n

    chemical hazards;<\/p>\n<\/li>\n

  6. \n

    sonic pressure hazards;<\/p>\n<\/li>\n

  7. \n

    liberated fluids, gases and explosion hazards.<\/p>\n<\/li>\n<\/ol>\n

    \n

    NOTE Servicing personnel are expected to have the necessary knowledge and skill to use reasonable care in dealing with hazards associated with the operation, repair and maintenance of this equipment. Based upon this premise, this standard provides only limited requirements (for example markings or guarding) intended to protect service personnel from hazards that may not be apparent even to trained personnel.<\/p>\n<\/blockquote>\n

    1.2.2 Aspects excluded from scope<\/b><\/p>\n

    Aspects not covered by this standard include, but are not limited to, the following:<\/p>\n

      \n
    1. \n

      functional reliability, performance or other properties of the equipment not related to safety;<\/p>\n<\/li>\n

    2. \n

      effectiveness of transport packaging;<\/p>\n<\/li>\n

    3. \n

      EMC requirements;<\/p>\n<\/li>\n

    4. \n

      installation requirements, which are covered by local and national installation codes.<\/p>\n<\/li>\n<\/ol>\n

      \n

      NOTE This standard does provide requirements for PCE intended to ensure that the PCE can be installed in a safe manner, including requirements for installation instructions provided with the product.<\/p>\n<\/blockquote>\n

      PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
      9<\/td>\nCONTENTS
      CONTENTS <\/td>\n<\/tr>\n
      15<\/td>\nFOREWORD
      FOREWORD <\/td>\n<\/tr>\n
      17<\/td>\nINTRODUCTION
      INTRODUCTION <\/td>\n<\/tr>\n
      18<\/td>\n1 Scope and object
      1.1 Scope
      1.2 Object
      1 Scope and object
      1.1 Scope
      1.2 Object <\/td>\n<\/tr>\n
      19<\/td>\n2 Normative references
      2 Normative references <\/td>\n<\/tr>\n
      22<\/td>\n3 Terms and definitions
      3 Terms and definitions <\/td>\n<\/tr>\n
      32<\/td>\n4 General testing requirements
      4.1 General
      4.2 General conditions for testing
      4 General testing requirements
      4.1 General
      4.2 General conditions for testing <\/td>\n<\/tr>\n
      35<\/td>\n4.3 Thermal testing
      4.3 Thermal testing <\/td>\n<\/tr>\n
      37<\/td>\nTables
      Table 1 \u2013 Total temperature limits for transformers, inductors, and other coils and their insulation systems
      Table 2 \u2013 Total temperature limits for materials and components where manufacturer\u2019s ratings and component standards do not exist (see \u200e4.3.2.1)
      Tables
      Table 1 \u2013 Total temperature limits for transformers, inductors, and other coils and their insulation systems
      Table 2 \u2013 Total temperature limits for materials and components where manufacturer\u2019s ratings and component standards do not exist (see \u200e4.3.2.1) <\/td>\n<\/tr>\n
      38<\/td>\n4.4 Testing in single fault condition
      Table 3 \u2013 Total touch temperature limits for accessible surfaces
      4.4 Testing in single fault condition
      Table 3 \u2013 Total touch temperature limits for accessible surfaces <\/td>\n<\/tr>\n
      43<\/td>\n4.5 Humidity preconditioning
      4.6 Backfeed voltage protection
      4.5 Humidity preconditioning
      4.6 Backfeed voltage protection <\/td>\n<\/tr>\n
      44<\/td>\n4.7 Electrical ratings tests
      5 Marking and documentation
      5.1 Marking
      4.7 Electrical ratings tests
      5 Marking and documentation
      5.1 Marking <\/td>\n<\/tr>\n
      47<\/td>\n5.2 Warning markings
      5.2 Warning markings <\/td>\n<\/tr>\n
      49<\/td>\n5.3 Documentation
      5.3 Documentation <\/td>\n<\/tr>\n
      51<\/td>\n6 Environmental requirements and conditions
      6 Environmental requirements and conditions <\/td>\n<\/tr>\n
      52<\/td>\n6.1 Environmental categories and minimum environmental conditions
      Table 4 \u2013 Environmental categories, environmental conditions, and test requirements
      6.1 Environmental categories and minimum environmental conditions
      Table 4 \u2013 Environmental categories, environmental conditions, and test requirements <\/td>\n<\/tr>\n
      53<\/td>\n6.2 Pollution degree
      Table 5 \u2013 Reduction of the pollution degree of internal environment through the use of additional protection
      6.2 Pollution degree
      Table 5 \u2013 Reduction of the pollution degree of internal environment through the use of additional protection <\/td>\n<\/tr>\n
      54<\/td>\n6.3 Ingress protection
      6.4 UV exposure
      6.5 Temperature and humidity
      7 Protection against electric shock and energy hazards
      7.1 General
      7.2 Fault conditions
      6.3 Ingress protection
      6.4 UV exposure
      6.5 Temperature and humidity
      7 Protection against electric shock and energy hazards
      7.1 General
      7.2 Fault conditions <\/td>\n<\/tr>\n
      55<\/td>\n7.3 Protection against electric shock
      Figures
      Figure 1 \u2013 Functional summary of protective measures against electric shock
      7.3 Protection against electric shock
      Figures
      Figure 1 \u2013 Functional summary of protective measures against electric shock <\/td>\n<\/tr>\n
      56<\/td>\nTable 6 \u2013 Summary of the limits of the decisive voltage classes
      Table 6 \u2013 Summary of the limits of the decisive voltage classes <\/td>\n<\/tr>\n
      57<\/td>\nTable 7 \u2013 Examples of application of insulation and separation
      Table 7 \u2013 Examples of application of insulation and separation <\/td>\n<\/tr>\n
      58<\/td>\nFigure 2 \u2013 Typical waveform for a.c. working voltage
      Figure 3 \u2013 Typical waveform for d.c. working voltage
      Figure 2 \u2013 Typical waveform for a.c. working voltage
      Figure 3 \u2013 Typical waveform for d.c. working voltage <\/td>\n<\/tr>\n
      59<\/td>\nFigure 4 \u2013 Typical waveform for pulsating working voltage
      Figure 4 \u2013 Typical waveform for pulsating working voltage <\/td>\n<\/tr>\n
      62<\/td>\nTable\u00a08 \u2013 Insulation between accessible unearthed parts and DVC-A or -B circuits adjacent to DVC-B or -C circuits
      Table\u00a08 \u2013 Insulation between accessible unearthed parts and DVC-A or -B circuits adjacent to DVC-B or -C circuits <\/td>\n<\/tr>\n
      63<\/td>\nFigure 5 \u2013 Examples for protection against direct contact for DVC-C circuits
      Figure 5 \u2013 Examples for protection against direct contact for DVC-C circuits <\/td>\n<\/tr>\n
      64<\/td>\nFigure 6 \u2013 Protection by DCV A with protective separation
      Figure 6 \u2013 Protection by DCV A with protective separation <\/td>\n<\/tr>\n
      65<\/td>\nFigure 7 \u2013 Protection by means of protective impedance
      Figure 7 \u2013 Protection by means of protective impedance <\/td>\n<\/tr>\n
      66<\/td>\nFigure 8 \u2013 Protection by limitation of discharge energy
      Table 9 \u2013 Values of accessible capacitance and charging voltage (threshold of pain)
      Figure 8 \u2013 Protection by limitation of discharge energy
      Table 9 \u2013 Values of accessible capacitance and charging voltage (threshold of pain) <\/td>\n<\/tr>\n
      67<\/td>\nFigure 9 \u2013 Protection by means of voltage limitation
      Figure 9 \u2013 Protection by means of voltage limitation <\/td>\n<\/tr>\n
      68<\/td>\nFigure 10 \u2013 Examples of protective bonding and earthing
      Figure 10 \u2013 Examples of protective bonding and earthing <\/td>\n<\/tr>\n
      70<\/td>\nFigure 11 \u2013 Protective bonding impedance test for separate unit with power fed from the PCE with overcurrent protection for the power cable
      Figure 11 \u2013 Protective bonding impedance test for separate unit with power fed from the PCE with overcurrent protection for the power cable <\/td>\n<\/tr>\n
      71<\/td>\nFigure 12 \u2013 Protective bonding impedance test for separate unit with accessible parts and with power fed from the PCE without overcurrent protection
      Figure 12 \u2013 Protective bonding impedance test for separate unit with accessible parts and with power fed from the PCE without overcurrent protection <\/td>\n<\/tr>\n
      72<\/td>\nTable 10 \u2013 Test duration for protective bonding test
      Table 10 \u2013 Test duration for protective bonding test <\/td>\n<\/tr>\n
      73<\/td>\nTable 11 \u2013 External protective earthing conductor cross-section
      Table 11 \u2013 External protective earthing conductor cross-section <\/td>\n<\/tr>\n
      78<\/td>\nTable\u00a012 \u2013 Insulation voltage for low voltage circuits
      Table\u00a012 \u2013 Insulation voltage for low voltage circuits <\/td>\n<\/tr>\n
      80<\/td>\nTable 13 \u2013 Clearance distances
      Table 13 \u2013 Clearance distances <\/td>\n<\/tr>\n
      82<\/td>\nTable 14 \u2013 Creepage distances (mm)
      Table 14 \u2013 Creepage distances (mm) <\/td>\n<\/tr>\n
      87<\/td>\n7.4 Protection against energy hazards
      7.4 Protection against energy hazards <\/td>\n<\/tr>\n
      88<\/td>\n7.5 Electrical tests related to shock hazard
      7.5 Electrical tests related to shock hazard <\/td>\n<\/tr>\n
      89<\/td>\nTable\u00a015 \u2013 Impulse voltage test
      Table\u00a015 \u2013 Impulse voltage test <\/td>\n<\/tr>\n
      90<\/td>\nTable 16 \u2013 Impulse test voltage
      Table 16 \u2013 Impulse test voltage <\/td>\n<\/tr>\n
      91<\/td>\nTable 17 \u2013 AC or DC test voltage for circuits connected directly to the mains
      Table 18 \u2013 a.c. or d.c. test voltage for circuits not connected directly to the mains
      Table 17 \u2013 AC or DC test voltage for circuits connected directly to the mains
      Table 18 \u2013 a.c. or d.c. test voltage for circuits not connected directly to the mains <\/td>\n<\/tr>\n
      92<\/td>\nFigure 13 \u2013 Voltage test procedures
      Figure 13 \u2013 Voltage test procedures <\/td>\n<\/tr>\n
      95<\/td>\nTable 19 \u2013 Partial discharge test
      Table 19 \u2013 Partial discharge test <\/td>\n<\/tr>\n
      96<\/td>\n8 Protection against mechanical hazards
      8.1 General
      8 Protection against mechanical hazards
      8.1 General <\/td>\n<\/tr>\n
      97<\/td>\n8.2 Moving parts
      8.3 Stability
      8.2 Moving parts
      8.3 Stability <\/td>\n<\/tr>\n
      98<\/td>\n8.4 Provisions for lifting and carrying
      8.5 Wall mounting
      8.4 Provisions for lifting and carrying
      8.5 Wall mounting <\/td>\n<\/tr>\n
      99<\/td>\n8.6 Expelled parts
      9 Protection against fire hazards
      9.1 Resistance to fire
      8.6 Expelled parts
      9 Protection against fire hazards
      9.1 Resistance to fire <\/td>\n<\/tr>\n
      103<\/td>\nTable 20 \u2013 Summary of material flammability requirements
      Table 20 \u2013 Summary of material flammability requirements <\/td>\n<\/tr>\n
      104<\/td>\nFigure 14 \u2013 Fire enclosure bottom openings below an unenclosed or partially enclosed component
      Figure 14 \u2013 Fire enclosure bottom openings below an unenclosed or partially enclosed component <\/td>\n<\/tr>\n
      105<\/td>\nFigure 15 \u2013 Fire enclosure baffle construction
      Table 21 \u2013 Allowable openings in fire enclosure bottoms
      Figure 15 \u2013 Fire enclosure baffle construction
      Table 21 \u2013 Allowable openings in fire enclosure bottoms <\/td>\n<\/tr>\n
      107<\/td>\n9.2 Limited power sources
      9.2 Limited power sources <\/td>\n<\/tr>\n
      108<\/td>\n9.3 Short-circuit and overcurrent protection
      Table 22 \u2013 Limits for inherently limited power sources
      Table\u00a023 \u2013 Limits for power sources not inherently limited
      9.3 Short-circuit and overcurrent protection
      Table 22 \u2013 Limits for inherently limited power sources
      Table\u00a023 \u2013 Limits for power sources not inherently limited <\/td>\n<\/tr>\n
      109<\/td>\n10 Protection against sonic pressure hazards
      10.1 General
      10.2 Sonic pressure and sound level
      10 Protection against sonic pressure hazards
      10.1 General
      10.2 Sonic pressure and sound level <\/td>\n<\/tr>\n
      110<\/td>\n11 Protection against liquid hazards
      11.1 Liquid containment, pressure and leakage
      11.2 Fluid pressure and leakage
      11 Protection against liquid hazards
      11.1 Liquid containment, pressure and leakage
      11.2 Fluid pressure and leakage <\/td>\n<\/tr>\n
      111<\/td>\n11.3 Oil and grease
      12 Chemical hazards
      12.1 General
      11.3 Oil and grease
      12 Chemical hazards
      12.1 General <\/td>\n<\/tr>\n
      112<\/td>\n13 Physical requirements
      13.1 Handles and manual controls
      13.2 Securing of parts
      13.3 Provisions for external connections
      13 Physical requirements
      13.1 Handles and manual controls
      13.2 Securing of parts
      13.3 Provisions for external connections <\/td>\n<\/tr>\n
      115<\/td>\nTable 24 \u2013 Sizes of conductors
      Table 24 \u2013 Sizes of conductors <\/td>\n<\/tr>\n
      116<\/td>\nTable 25 \u2013 Physical tests on power supply cords
      Table 25 \u2013 Physical tests on power supply cords <\/td>\n<\/tr>\n
      119<\/td>\nTable\u00a026 \u2013 Wire bending space from terminals to obstructions
      Table\u00a026 \u2013 Wire bending space from terminals to obstructions <\/td>\n<\/tr>\n
      120<\/td>\n13.4 Internal wiring and connections
      13.4 Internal wiring and connections <\/td>\n<\/tr>\n
      121<\/td>\n13.5 Openings in enclosures
      13.5 Openings in enclosures <\/td>\n<\/tr>\n
      122<\/td>\nFigure 16 \u2013 Examples of cross-sections of designs of openings preventing vertical access
      Figure 17 \u2013 Examples of louver design
      Figure 16 \u2013 Examples of cross-sections of designs of openings preventing vertical access
      Figure 17 \u2013 Examples of louver design <\/td>\n<\/tr>\n
      123<\/td>\n13.6 Polymeric materials
      Figure 18 \u2013 Enclosure openings
      13.6 Polymeric materials
      Figure 18 \u2013 Enclosure openings <\/td>\n<\/tr>\n
      125<\/td>\n13.7 Mechanical resistance to deflection, impact, or drop
      Table 27 \u2013 Minimum property retention limits after UV exposure
      13.7 Mechanical resistance to deflection, impact, or drop
      Table 27 \u2013 Minimum property retention limits after UV exposure <\/td>\n<\/tr>\n
      127<\/td>\n13.8 Thickness requirements for metal enclosures
      13.8 Thickness requirements for metal enclosures <\/td>\n<\/tr>\n
      128<\/td>\nTable 28 \u2013 Thickness of sheet metal for enclosures: Carbon steel or stainless steel
      Table 28 \u2013 Thickness of sheet metal for enclosures: Carbon steel or stainless steel <\/td>\n<\/tr>\n
      129<\/td>\n14 Components
      14.1 General
      Table 29 \u2013 Thickness of sheet metal for enclosures: aluminium, copper or brass
      14 Components
      14.1 General
      Table 29 \u2013 Thickness of sheet metal for enclosures: aluminium, copper or brass <\/td>\n<\/tr>\n
      130<\/td>\nFigure 19 \u2013 Methods of compliance verification
      Figure 19 \u2013 Methods of compliance verification <\/td>\n<\/tr>\n
      131<\/td>\n14.2 Motor overtemperature protection
      14.3 Overtemperature protection devices
      14.4 Fuse holders
      14.5 Mains voltage selecting devices
      14.6 Printed circuit boards
      14.2 Motor overtemperature protection
      14.3 Overtemperature protection devices
      14.4 Fuse holders
      14.5 Mains voltage selecting devices
      14.6 Printed circuit boards <\/td>\n<\/tr>\n
      132<\/td>\n14.7 Circuits or components used as transient overvoltage limiting devices
      14.8 Batteries
      14.7 Circuits or components used as transient overvoltage limiting devices
      14.8 Batteries <\/td>\n<\/tr>\n
      134<\/td>\n15 Software and firmware performing safety functions
      15 Software and firmware performing safety functions <\/td>\n<\/tr>\n
      135<\/td>\nAnnex A (normative) Measurement of clearances and creepage distances
      Figure A.1 \u2013 Narrow groove
      Table A.1 \u2013 Value of X
      Annex A (normative) Measurement of clearances and creepage distances
      Figure A.1 \u2013 Narrow groove
      Table A.1 \u2013 Value of X <\/td>\n<\/tr>\n
      136<\/td>\nFigure A.2 \u2013 Wide groove
      Figure A.3 \u2013 V-shaped groove
      Figure A.4 \u2013 Rib
      Figure A.5 \u2013 Uncemented joint with narrow groove
      Figure A.2 \u2013 Wide groove
      Figure A.3 \u2013 V-shaped groove
      Figure A.4 \u2013 Rib
      Figure A.5 \u2013 Uncemented joint with narrow groove <\/td>\n<\/tr>\n
      137<\/td>\nFigure A.6 \u2013 Uncemented joint with wide groove
      Figure A.7 \u2013 Uncemented joint with narrow and wide grooves
      Figure A.8 \u2013 Narrow recess
      Figure A.6 \u2013 Uncemented joint with wide groove
      Figure A.7 \u2013 Uncemented joint with narrow and wide grooves
      Figure A.8 \u2013 Narrow recess <\/td>\n<\/tr>\n
      138<\/td>\nFigure A.9 \u2013 Wide recess
      Figure A.10 \u2013 Intervening, unconnected conductive part
      Figure A.9 \u2013 Wide recess
      Figure A.10 \u2013 Intervening, unconnected conductive part <\/td>\n<\/tr>\n
      139<\/td>\nFigure A.11 \u2013 Distance for multilayer PWBs
      Figure A.11 \u2013 Distance for multilayer PWBs <\/td>\n<\/tr>\n
      140<\/td>\nAnnex B (normative) Programmable equipment
      Annex B (normative) Programmable equipment <\/td>\n<\/tr>\n
      141<\/td>\nAnnex C (normative) Symbols to be used in equipment markings
      Table C.1 \u2013 Symbols
      Annex C (normative) Symbols to be used in equipment markings
      Table C.1 \u2013 Symbols <\/td>\n<\/tr>\n
      143<\/td>\nAnnex D (informative) Test probes for determining access
      Figure D.1 \u2013 Test finger
      Annex D (informative) Test probes for determining access
      Figure D.1 \u2013 Test finger <\/td>\n<\/tr>\n
      144<\/td>\nFigure D.2 \u2013 Test pin
      Figure D.3 \u2013 Straight unjointed test finger
      Figure D.2 \u2013 Test pin
      Figure D.3 \u2013 Straight unjointed test finger <\/td>\n<\/tr>\n
      145<\/td>\nAnnex E (informative) RCDs
      Figure E.1 \u2013 Flow chart leading to selection of the RCD\/RCM type upstream of a PCE
      Annex E (informative) RCDs
      Figure E.1 \u2013 Flow chart leading to selection of the RCD\/RCM type upstream of a PCE <\/td>\n<\/tr>\n
      147<\/td>\nAnnex F (informative) Altitude correction for clearances
      Table F.1 \u2013 Correction factor for clearances at altitudes above 2\u00a0000\u00a0m (see \u200e7.3.7.4.1)
      Table F.2 \u2013 Test voltages for verifying clearances at different altitudes
      Annex F (informative) Altitude correction for clearances
      Table F.1 \u2013 Correction factor for clearances at altitudes above 2\u00a0000\u00a0m (see \u200e7.3.7.4.1)
      Table F.2 \u2013 Test voltages for verifying clearances at different altitudes <\/td>\n<\/tr>\n
      148<\/td>\nAnnex G (informative) Clearance and creepage distance determination for frequencies greater than 30 kHz
      Figure G.1 \u2013 Clearance distance determination for frequencies greater than 30 kHz
      Annex G (informative) Clearance and creepage distance determination for frequencies greater than 30 kHz
      Figure G.1 \u2013 Clearance distance determination for frequencies greater than 30 kHz <\/td>\n<\/tr>\n
      149<\/td>\nFigure G.2 \u2013 Creepage distance determination for frequencies greater than 30 kHz
      Table G.1 \u2013 Minimum values of clearances in air at atmospheric pressure for inhomogeneous field conditions (Table 1 of IEC 60664 4)
      Figure G.2 \u2013 Creepage distance determination for frequencies greater than 30 kHz
      Table G.1 \u2013 Minimum values of clearances in air at atmospheric pressure for inhomogeneous field conditions (Table 1 of IEC 60664 4) <\/td>\n<\/tr>\n
      150<\/td>\nTable G.2 \u2013 Minimum values of creepage distances for different frequency ranges (Table 2 of IEC 60664 4)
      Table G.2 \u2013 Minimum values of creepage distances for different frequency ranges (Table 2 of IEC 60664 4) <\/td>\n<\/tr>\n
      151<\/td>\nAnnex\u00a0H (informative) Measuring instrument for touch current measurements (see \u200e7.5.4)
      Figure H.1 \u2013 Measuring instrument
      Annex\u00a0H (informative) Measuring instrument for touch current measurements (see \u200e7.5.4)
      Figure H.1 \u2013 Measuring instrument <\/td>\n<\/tr>\n
      152<\/td>\nFigure H.2 \u2013 Alternative measuring instrument
      Figure H.2 \u2013 Alternative measuring instrument <\/td>\n<\/tr>\n
      153<\/td>\nAnnex I (informative) Examples of protection, insulation, and overvoltage category requirements for PCE
      Annex I (informative) Examples of protection, insulation, and overvoltage category requirements for PCE <\/td>\n<\/tr>\n
      154<\/td>\nFigure I.1 \u2013 Transformer (basic) isolated PV inverter
      Figure I.2 \u2013 Transformer (basic) isolated PV inverter with SPD to reduce impulse voltage for functional insulation
      Figure I.1 \u2013 Transformer (basic) isolated PV inverter
      Figure I.2 \u2013 Transformer (basic) isolated PV inverter with SPD to reduce impulse voltage for functional insulation <\/td>\n<\/tr>\n
      155<\/td>\nFigure I.3 \u2013 Isolated PV inverter with SPD to reduce impulse voltage for basic insulation
      Figure I.4 \u2013 Transformer isolated auxiliary circuit with reinforced insulation
      Figure I.3 \u2013 Isolated PV inverter with SPD to reduce impulse voltage for basic insulation
      Figure I.4 \u2013 Transformer isolated auxiliary circuit with reinforced insulation <\/td>\n<\/tr>\n
      156<\/td>\nFigure I.5 \u2013 Transformerless PV inverter
      Figure I.5 \u2013 Transformerless PV inverter <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

      Safety of power converters for use in photovoltaic power systems – General requirements<\/b><\/p>\n\n\n\n\n
      Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
      BSI<\/b><\/a><\/td>\n2011<\/td>\n160<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":417259,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-417249","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/417249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/417259"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=417249"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=417249"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=417249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}