ДСТУ EN 61643-11:2015 Устройства защиты от импульсных перенапряжений низковольтные. Часть 11. Устройства защиты от импульсных перенапряжений, подключенные к низковольтным электросетям. Требования и методы исп...
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EN 61643-11:2012
Low-voltage surge protective devices -
Part 11: Surge protective devices connected to low-voltage power systems -
Requirements and test methods
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ДСТУ EN 61643-11:2015
(EN 61643-11:2012, IDT)
Пристрої захисту від імпульсних перенапруг низьковольтні. Частина 11. Пристрої
захисту від імпульсних перенапруг, підключені до низьковольтних електромереж.
Вимоги та методи випробування
З наданням чинності від 2016-01-01
CONTENTS
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 Service conditions
4.1 Frequency
4.2 Voltage
4.3 Air pressure and altitude
4.4 Temperatures
4.5 Humidity
5 Classification
5.1 Number of ports
5.1.1 One
5.1.2 Two
5.2 SPD design
5.2.1 Voltage switching
5.2.2 Voltage limiting
5.2.3 Combination
5.3 Class I, II and III tests
5.4 Location
5.4.1 Indoor
5.4.2 Outdoor
5.5 Accessibility
5.5.1 Accessible
5.5.2 Inaccessible
5.6 Mounting method
5.6.1 Fixed
5.6.2 Portable
5.7 Disconnectors (including overcurrent protection)
5.7.1 Location
5.7.2 Protection functions
5.8 Degree of protection provided by enclosures
5.9 Temperature and humidity range
5.9.1 Normal
5.9.2 Extended
5.10 Power system
5.10.1 AC between 47 Hz and 63 Hz
5.10.2 AC other than the range of 47 Hz to 63 Hz
5.11 Multipole SPD
5.12 SPD failure behaviour
5.12.1 open circuit (standard type SPD)
5.12.2 short-circuit (short-circuiting type SPD)
6 Preferred values for SPD
6.1 Preferred values of impulse discharge current Iimp for class I tests
6.2 Preferred values of nominal discharge current for class II tests In
6.3 Preferred values of open-circuit voltage for class III tests Uoc
6.4 Preferred values of voltage protection level Up
6.5 Preferred values of r.m.s. maximum continuous operating voltage Uc
7 Requirements
7.1 General requirements
7.1.1 Identification
7.1.2 Marking
7.2 Electrical requirements
7.2.1 Protection against direct contact
7.2.2 Residual current IPE
7.2.3 Voltage protection level Up
7.2.4 Operating duty
7.2.5 Disconnectors and status indicators
7.2.6 Insulation resistance
7.2.7 Dielectric withstand
7.2.8 Behaviour under Temporary Overvoltages
7.3 Mechanical requirements
7.3.1 Mounting
7.3.2 Screws, current carrying parts and connections
7.3.3 External connections
7.3.4 Air clearances and creepage distances
7.3.5 Mechanical strength
7.4 Environmental and material requirements
7.4.1 Protection provided by enclosure (IP code)
7.4.2 Heat resistance
7.4.3 Fire resistance
7.4.4 Tracking resistance
7.4.5 Electromagnetic compatibility
7.5 Additional requirements for specific SPD designs
7.5.1 Two port SPDs and one port SPDs with separate input/output terminals
7.5.2 Environmental tests for outdoor SPDs
7.5.3 SPDs with separate isolated circuits
7.5.4 Short-circuiting type SPDs
7.6 Additional requirements as may be declared by the manufacturer
7.6.1 One-port and two-port SPDs
7.6.2 Two port SPDs only
8 Type tests
8.1 General testing procedures
8.1.1 Impulse discharge current used for class I additional duty test
8.1.2 Current impulse used for class I and class II residual voltage and operating duty tests
8.1.3 Voltage impulse used for class I and II sparkover tests
8.1.4 Combination wave used for class III tests
8.2 Indelibility of markings
8.3 Electrical tests
8.3.1 Protection against direct contact
8.3.2 Residual current IPE
8.3.3 Measured limiting voltage
8.3.4 Operating duty test
8.3.5 Disconnectors and safety performance of overstressed SPDs
8.3.6 Insulation resistance
8.3.7 Dielectric withstand
8.3.8 Behaviour under Temporary Overvoltages (TOVs)
8.4 Mechanical tests
8.4.1 Reliability of screws, current-carrying parts and connections
8.4.2 Terminals for external conductors
8.4.3 Verification of air clearances and creepage distances
8.4.4 Mechanical strength
8.5 Environmental and material tests
8.5.1 Resistance to ingress of solid objects and to harmful ingress of water
8.5.2 Heat resistance
8.5.3 Ball pressure test
8.5.4 Resistance to abnormal heat and fire
8.5.5 Tracking resistance
8.6 Additional tests for specific SPD designs
8.6.1 Test for two-port SPDs and one-port SPDs with separate input/output terminals
8.6.2 Environmental tests for outdoor SPDs
8.6.3 SPDs with separate isolated circuits
8.6.4 Short-circuiting type SPDs
8.7 Additional tests for specific performance if declared by the manufacturer
8.7.1 Total discharge current test for multipole SPDs
8.7.2 Test to determine the voltage drop
8.7.3 Load-side surge withstand capability
8.7.4 Measurement of voltage rate of rise du/dt
9 Routine and acceptance tests
9.1 Routine tests
9.2 Acceptance tests
Annex A (normative) Reference test voltages for SPDs UREF
Annex B (normative) TOV Ratings
Annex C (normative) Tests to determine the presence of a switching component and the magnitude of the follow current
Annex D (normative) Reduced test procedures
Annex E (informative) Alternative circuits for testing SPDs under TOVs caused by faults in the high (medium) voltage system
Annex F (informative) Environmental tests for outdoor SPDs
Annex G (normative) Temperature rise limits
Bibliography
Figure 1 – Metallic screen test set-up
Figure 2 – Example of a decoupling network for single-phase power
Figure 3 – Example of a decoupling network for three-phase power
Figure 4 – Alternate test for the measured limiting voltage
Figure 5 – Flow chart of testing to check the voltage protection level Up
Figure 6 – Flow chart of the operating duty test
Figure 7 – Test set-up for operating duty test
Figure 8 – Operating duty test timing diagram for test classes I and II
Figure 9 – Additional duty test timing diagram for test class I
Figure 10 – Operating duty test timing diagram for test class III
Figure 11 – Test circuit for SPD with Ifi lower than the declared short-circuit rating
Figure 12 – Test circuit for SPD’s failure mode simulation
Figure 13 – Timing diagram for SPD’s failure mode simulation
Figure 14 – Example of a test circuit to perform the test under TOVs caused by faults in the low voltage system
Figure 15 – Timing diagram for the test under TOVs caused by faults in the low voltage system
Figure 16 – Example of circuit for testing SPDs for use in TT systems under TOVs caused by faults in high (medium) voltage system
Figure 17 – Timing diagram for use in testing SPDs under TOVs caused by faults in the high (medium) voltage system using circuit of Figure 16
Figure 18 – Test apparatus for impact test
Figure 19 – Striking element of the pendulum hammer
Figure 20 – Ball thrust tester
Figure 21 – Loading rod for ball thrust tester
Figure 22 – Examples for appropriate test circuits of the load side short-circuit test(s)
Figure E.1 – Examples of a three-phase and single-phase circuit for use in testing SPDs under TOVs caused by faults in the high (medium) voltage system
Table 1 – List of Abbreviations
Table 2 – Class I, II and III tests
Table 3 – Type test requirements for SPDs
Table 4 – Common pass criteria for type tests
Table 5 – Cross reference for pass criteria versus type tests
Table 6 – Preferred parameters for class I test
Table 7 – Tests to be performed to determine the measured limiting voltage
Table 8 – Prospective short-circuit current and power factor
Table 9 – Dielectric withstand
Table 10 – Screw thread diameters and applied torques
Table 11 – Cross-sections of copper conductors for screw-type or screwless terminals
Table 12 – Pulling forces (screw terminals)
Table 13 – Conductor dimensions
Table 14 – Pulling forces (screwless terminals)
Table 15 – Air clearances for SPDs
Table 16 – Creepage distances for SPDs
Table 17 – Relationship between material groups and classifications
Table 18 – Fall distances for impact requirements
Table 19 – Test conductors for rated load current test
Table 20 – Current factor k for overload behaviour
Table 21 – Tolerances for proportional surge currents
Table A.1 – Reference test voltage values
Table B.1 – TOV test values for systems complying with IEC 60364 series .
Table B.2 – TOV test parameters for North American systems
Table B.3 – TOV test parameters for Japanese systems
Table D.1 – Reduced test procedure for SPDs complying with IEC 61643-1:2005
Table G.1 – Temperature-rise limits
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