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eLibrary > BS EN IEC 61643-01:2025+A11:2025 Low-voltage surge protective devices - General Requirements and test methods >

BS EN IEC 61643-01:2025+A11:2025 Low-voltage surge protective devices - General Requirements and test methods, 2025

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BS EN IEC 61643-01:2025+A11:2025 Low-voltage surge protective devices - General Requirements and test methods, 2025

undefined [Go to Page]
European foreword
Endorsement notice
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English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and symbols [Go to Page]
3.1 Terms and definitions
3.2 Abbreviated terms and symbols
Tables [Go to Page]
Table 1 – List of abbreviated terms and symbols
4 Classification [Go to Page]
4.1 General
4.2 Number of ports [Go to Page]
4.2.1 One
4.2.2 Two
4.3 SPD design [Go to Page]
4.3.1 Voltage switching
4.3.2 Voltage limiting
4.3.3 Combination
4.4 Mode of protection design [Go to Page]
4.4.1 Voltage switching
4.4.2 Voltage limiting
4.4.3 Combination
4.5 Type of SPD
4.6 Environment [Go to Page]
4.6.1 Indoor
4.6.2 Outdoor
4.6.3 Non submersible SPDs
4.6.4 Submersible SPDs
4.7 Accessibility [Go to Page]
4.7.1 Accessible
4.7.2 Inaccessible
4.8 Mounting method [Go to Page]
4.8.1 Fixed
4.8.2 Portable
Table 2 – Type of SPD
4.9 Location of disconnector (including overcurrent protection) [Go to Page]
4.9.1 Internal
4.9.2 External
4.9.3 Both (internal and external)
4.9.4 None
4.10 Degree of protection provided by enclosures according to IEC 60529 (IP code)
4.11 Temperature and humidity range [Go to Page]
4.11.1 Normal
4.11.2 Extended
4.12 SPD modes of protection [Go to Page]
4.12.1 SPD providing a single mode of protection
4.12.2 Multimode SPD
4.13 End-of-life mode of the SPDA [Go to Page]
4.13.1 Open-circuit mode (OCM)
4.13.2 Short-circuit mode (SCM)
4.14 Short-Circuit protection function for OCM end-of-life mode [Go to Page]
4.14.1 Internal
4.14.2 External
5 Void
6 Marking and other product information [Go to Page]
6.1 General
6.2 List of items
6.3 Information about status indicator
7 Service conditions [Go to Page]
7.1 Voltage
7.2 Air pressure and altitude
7.3 Temperatures
7.4 Humidity
8 Requirements [Go to Page]
8.1 General requirements
8.2 Marking
8.3 Electrical requirements [Go to Page]
8.3.1 Protection against electric shock
8.3.2 Continuous current IC
8.3.3 Protective conductor current IPE
8.3.4 Measured limiting voltage
8.3.5 Operating duty
8.3.6 Safety performance of overstressed SPDs
8.3.7 Insulation resistance
8.3.8 Dielectric withstand
8.3.9 Behaviour under temporary overvoltages
8.4 Mechanical requirements [Go to Page]
8.4.1 General
8.4.2 Screws, current carrying parts and connections
8.4.3 External connections
8.4.4 Air clearances and creepage distances
8.4.5 Mechanical strength
8.5 Environmental and material requirements [Go to Page]
8.5.1 Protection provided by enclosure (IP code)
8.5.2 Heat resistance
8.5.3 Resistance to abnormal heat and fire
8.5.4 Tracking resistance
8.5.5 Ageing behaviour under damp heat
8.5.6 Electromagnetic compatibility
8.6 Additional requirements for specific SPD designs [Go to Page]
8.6.1 Two port SPDs and one port SPDs with separate input/output connections
8.6.2 Environmental stress for outdoor SPDs
8.6.3 SPDs with electrically separated circuits
8.6.4 Total Discharge Current ITotal, if declared by the manufacturer
8.6.5 Two port SPDs
8.6.6 Short-circuiting SPDs
8.7 Routine and acceptance tests
9 Tests [Go to Page]
9.1 Type testing procedures [Go to Page]
9.1.1 General
Figures [Go to Page]
Figure 1 – I/U characteristics for linear power source
Figure 2 – Metallic screen test setup
Table 3 – Pass criteria for type tests [Go to Page]
9.1.2 Impulse discharge current
9.1.3 8/20 current impulse
Table 4 – Example parameters for impulse discharge current [Go to Page]
9.1.4 1,2/50 voltage impulse
9.1.5 Combination wave
Figure 3 – Example of a decoupling network for single-phase power
9.2 Indelibility of markings
Figure 4 – Example of a decoupling network for three-phase power
Figure 5 – Alternate test for the measured limiting voltage
9.3 Electrical tests [Go to Page]
9.3.1 Protection against direct contact
9.3.2 Continuous current IC
9.3.3 Protective conductor current IPE
9.3.4 Measured limiting voltage
Figure 6 – Flow chart of testing to check the voltage protection level Up
Table 5 – Tests to be performed to determine the measured limiting voltage [Go to Page]
9.3.5 Operating duty test
Figure 7 – Flow chart for the operating duty tests according 9.3.5.3, 9.3.5.4 and 9.3.5.6
Figure 8 – Example of test set-up for operating duty test
Figure 9 – Operating duty test timing diagram for T1 SPDs and T2 SPDs
Figure 10 – Additional duty test timing diagram for T1 SPD
Figure 11 – Flow chart for the additional test for SPDs with follow current [Go to Page]
9.3.6 Safety performance of overstressed SPDs
Figure 12 – Example for test circuit for thermal protection test
Table 6 – Prospective short circuit current to be applied depending on the maximum overcurrent protection specified, for fuses of the gG type [Go to Page]
9.3.7 Insulation resistance
9.3.8 Dielectric withstand
Table 7 – Dielectric impulse withstand test voltages for SPD main circuits
Table 8 – Dielectric AC test voltages for SPD main circuits
Table 9 – Dielectric AC test voltages for SPD main circuits
Table 10 – Dielectric impulse withstand test voltages for separated circuits
Table 11 – Dielectric AC test voltages for separated circuits
Table 12 – Dielectric AC test voltages for separated circuits
Table 13 – Dielectric AC test voltages between circuits with protective separation (double/reinforced insulation) according to 9.3.7.2 c) and d) [Go to Page]
9.3.9 Behaviour under temporary overvoltages (TOVs)
9.4 Mechanical tests [Go to Page]
9.4.1 General
9.4.2 Reliability of screws, current-carrying parts and connections
Table 14 – Impulse test voltages for verifying clearances at different altitudes
Table 15 – Screw thread diameters and applied torques [Go to Page]
9.4.3 Tests for external connections for copper conductors
Table 16 – Cross-sections of copper conductors for screw-type or screwless terminals
Table 17 – Conductor dimensions
Table 18 – Pulling forces (screw terminals and bolted connections)
Table 19 – Pulling forces (screwless terminals) [Go to Page]
9.4.4 Verification of air clearances and creepage distances
Table 20 – Air clearances for SPD main circuit(s)
Table 21 – Air clearances for electrically separated circuits
Table 22 – Creepage distances for SPDs
Table 23 – Relationship between material groups and classifications [Go to Page]
9.4.5 Mechanical strength
Figure 13 – Test apparatus for impact test
Figure 14 – Striking element of the pendulum hammer
Table 24 – Fall distances for impact requirements
9.5 Environmental and material tests [Go to Page]
9.5.1 Resistance to ingress of solid objects and to harmful ingress of water
9.5.2 Heat resistance
Figure 15 – Ball pressure test arrangement
Figure 16 – Pressure ball of loading device [Go to Page]
9.5.3 Resistance to abnormal heat and fire
9.5.4 Tracking resistance
9.5.5 Life test under damp heat
9.6 Additional tests for specific SPD designs [Go to Page]
9.6.1 Tests for two-port SPDs and one-port SPDs with separate input/output connections
Figure 17 – Examples of appropriate test circuits for the rated load current test
Table 25 – Test conductors for rated load current test
Table 26 – Trip current factor k for overload behaviour [Go to Page]
9.6.2 Environmental tests for outdoor SPDs
Figure 18 – Examples for appropriate test circuits of the load side short-circuit test(s) [Go to Page]
9.6.3 SPDs with separated circuits
9.6.4 Total discharge current test for multimode SPDs
9.6.5 Tests for two port SPDs only
Table 27 – Tolerances for proportional impulse currents
Figure 19 – Example of test set-up for load side surge operating duty test
Annexes [Go to Page]
Annex A (normative) Routine and acceptance tests [Go to Page]
A.1 Routine tests
A.2 Acceptance tests
Annex B (normative) Tests to determine on SPD modes of protection with or without follow current [Go to Page]
B.1 SPDs modes of protection and follow current
B.2 Follow current determination for SPD’s combination mode of protection according to 4.4.3.1
Annex C (normative) Temperature rise limits
Table C.1 – Temperature-rise limits
Annex D (normative) Environmental tests for outdoor SPDs [Go to Page]
D.1 Non submersible SPDs [Go to Page]
D.1.1 Accelerated aging test with UV radiation
D.1.2 Temperature cycling test
D.1.3 Verification of resistance to corrosion
D.2 Submersible SPDs [Go to Page]
D.2.1 Water immersion test
D.2.2 Dielectric test
Annex E (normative) Short-circuiting SPDs [Go to Page]
E.1 General
E.2 Transition surge current rating test [Go to Page]
E.2.1 General
Figure E.1 – Differences in test procedure for short circuiting SPDs [Go to Page]
[Go to Page]
E.2.2 Test to reach the short-circuit mode of a short-circuiting SPD
E.2.3 Impulse withstand test (in short-circuited condition)
Annex F (normative) Reduced test procedure for series connection of SPD’s modes of protection [Go to Page]
F.1 General
F.2 Reduced test procedure
Table F.1 – Reduced test procedure for the mode of protection provided by a series connection of modes of protection according to F.1
Annex G (normative) Test procedures for SPDs according to 4.14.1.4 [Go to Page]
G.1 General
G.2 Sample preparation and preconditioning for the short-circuit current behaviour test [Go to Page]
G.2.1 Sample preparation
G.2.2 Preconditioning procedure
Figure G.1 – Sample preparation for preconditioning test
Figure G.2 – Example of test setup for preconditioning [Go to Page]
[Go to Page]
G.2.3 Pass criteria
G.3 Specific overstress test [Go to Page]
G.3.1 Sample preparation
G.3.2 General test procedure
Figure G.3 – Example of test setup for specific overstress test [Go to Page]
[Go to Page]
G.3.3 Pass criteria
Figure G.4 – Typical timing diagram for specific overstress test
Bibliography [Go to Page]

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