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A practical guide in the design, installation, commissioning and operation of electrical installations of residential, industrial and public buildings using protective shutdown devices (RCD)


1 area of ​​use
2. Electrical safety system
2.1. General provisions
2.2. Electrical Safety Criteria
2.3. Basic principles of protection against electric ignition
2.4. Classification of premises according to the degree of danger of electric shock to people
2.5. Classification of electrical and electronic equipment according to the method of protection against electric shock
3. RCD - effective fire and electrical protection
3.1. General provisions
3.2. The principle of operation of the RCD
3.3. RCD types
4. Technical parameters of protective devices
4.1. RCD parameters
4.2. Requirements for construction, electrical parameters
5. The choice of RCD in the design and installation of electrical installations
5.1. General requirements
6. Analysis of the electrical circuit of the electrical installation
6.1. General provisions
6.2. Installation location and purpose of the RCD
6.3. Features of the use of RCD in various grounding systems
6.4. Application of RCD in the grounding system TN
6.5. PE protective conductor connection. Equipotential bonding
6.6. Wiring diagram of the RCD in electrical installations of buildings
7. Estimated verification of electrical installation modes
7.1. General provisions
7.2. Calculation of the maximum and minimum expected short circuit current
7.3. Overcurrent protection
8. Documentation for RCDs
9. The choice of the type and parameters of the RCD
9.1. General provisions
9.2. Rated voltage U n
9.3. Rated load current i n
9.4. Nominal tripping differential current I D n (setpoint)
9.5. Rated non-disconnecting differential current I D n0
9.6. Limit value of non-switching overcurrent I nm
9.7. Rated switching and breaking capacity (switching capacity) I m
9.8. Rated switching and breaking capacity for differential current I D m
9.9. Rated conditional short-circuit current I nc
9.10. Rated conditional differential short-circuit current I D s
9.11. Rated off time T n
9.12. Temperature conditions
9.13. Degree of protection
9.14. Circuit RCDs
9.15. RCD types AU, A and B
10. Coordination of protective devices
11. Selectivity of the RCD
12. Insulation monitoring, fault detection
13. Principles of surge protection
13.1. General provisions
13.2. Technical parameters of surge protection devices
14. Installation and operation of RCD in electrical installations
14.1. RCD installation
14.2. Operational Control RCD
14.3. Procedure for testing the operation of the RCD
15. Analysis of the causes of the RCD and the algorithm for troubleshooting electrical installations
16. The procedure for control of the RCD during the certification of electrical installations
16.1. Verification of technical documentation on the RCD
16.2. Checking the correctness of the choice of installation location and parameters of the RCD in the wiring diagram
16.3. Verifying the correct installation of the RCD
16.4. RCD test
16.5. Security measures
16.6. Documentation of the control of the RCD (Protocol)
Appendix 1. List of buildings, structures and enterprises whose electrical installations are certified according to the Rules of the "System for certification of electrical installations of buildings"
Appendix 2. Regulatory Documents
Appendix 3. Schemes of electrical installations of buildings using RCDs
Appendix 4. Methods for determining the threshold of operation of the RCD, measuring the leakage current in the protection zone of the RCD, detecting defective circuits
Appendix 5. Methods for testing the performance of the RCD in the building electrical installation diagram
Appendix 6. Test Report RCD

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