This part specifies essential requirements regarding protection against electric shock, including basic protection (protection against direct contact) and fault protection (protection against indirect contact) of persons and livestock. It deals also with the application and co-ordination of these requirements in relation to external influences.
In this part, requirements are also given for the application of additional protection in certain cases.
Foreword I 410 Introduction II 410.1 Scope 410.2 Normative References 410.3 General Requirements 411 Protective Measure: Automatic Disconnection of Supply 411.1 General 411.2 Requirements for basic protection 411.3 Requirements for fault protection 411.4 TN system 411.5 TT system 411.6 IT system 411.7 Functional extra-low voltage (FELV) 412 Protective Measure: Double or Reinforced Insulation 412.1 General 412.2 Requirements for basic protection and fault protection 413 Protective Measure: Electrical Separation 413.1 General 413.2 Requirements for basic protection 413.3 Requirements for fault protection 414 Protective Measure: Extra-low-voltage Provided by SELV and PELV 414.1 General 414.2 Requirements for basic protection and fault protection 414.3 Sources for SELV and PELV 414.4 Requirements for SELV and PELV circuits 415 Additional Protection 415.1 Additional protection: residual current protective devices (RCDs) 415.2 Additional protection: supplementary protective equipotential bonding Appendix A (Normative) Provisions for Basic Protection Appendix B (Normative) Obstacles and Placing Out of Reach Appendix C (Normative) Protective Measures for Application Only When the Installation Is Controlled or Under the Supervision of Skilled or Instructed Persons Bibliography
This part specifies essential requirements regarding protection against electric shock, including basic protection (protection against direct contact) and fault protection (protection against indirect contact) of persons and livestock. It deals also with the application and co-ordination of these requirements in relation to external influences.
In this part, requirements are also given for the application of additional protection in certain cases.
Contents of GB 16895.21-2011
Foreword I
410 Introduction II
410.1 Scope
410.2 Normative References
410.3 General Requirements
411 Protective Measure: Automatic Disconnection of Supply
411.1 General
411.2 Requirements for basic protection
411.3 Requirements for fault protection
411.4 TN system
411.5 TT system
411.6 IT system
411.7 Functional extra-low voltage (FELV)
412 Protective Measure: Double or Reinforced Insulation
412.1 General
412.2 Requirements for basic protection and fault protection
413 Protective Measure: Electrical Separation
413.1 General
413.2 Requirements for basic protection
413.3 Requirements for fault protection
414 Protective Measure: Extra-low-voltage Provided by SELV and PELV
414.1 General
414.2 Requirements for basic protection and fault protection
414.3 Sources for SELV and PELV
414.4 Requirements for SELV and PELV circuits
415 Additional Protection
415.1 Additional protection: residual current protective devices (RCDs)
415.2 Additional protection: supplementary protective equipotential bonding
Appendix A (Normative) Provisions for Basic Protection
Appendix B (Normative) Obstacles and Placing Out of Reach
Appendix C (Normative) Protective Measures for Application Only When the Installation Is Controlled or Under the Supervision of Skilled or Instructed Persons
Bibliography
