AS/NZS 61009.1:2015

AS/NZS 61009.1:2015 Residual current operated circuitbreakers with integral overcurrent protection for household and similar uses (RCBOs) General rules (IEC 61009-1, Ed. 3.2 (2013) MOD)

PREFACE

INTRODUCTION

1 Scope

2 Normative references

3 Terms and definitions

3.1 Definitions relating to currents flowing from live parts to earth

3.2 Definitions relating to the energization of a residual current circuit-breaker

3.3 Definitions relating to the operation and functions of residual current circuit-breakers

3.4 Definitions relating to values and ranges of energizing quantities

3.5 Definitions relating to values and ranges of influencing quantities

3.6 Definitions relating to terminals

3.7 Definitions relating to conditions of operation

3.8 Definitions relating to constructional elements

3.9 Definitions relating to tests

3.10 Definitions relating to insulation coordination

4 Classification

4.1 According to the method of operation

4.1.1 RCBO functionally independent of line voltage (see 3.3.8)

4.1.2 RCBO functionally dependent on line voltage (see 3.3.9)

4.2 According to the type of installation

4.3 According to the number of poles and current paths

4.4 According to the possibility of adjusting the residual operating current

4.5 According to resistance to unwanted tripping due to voltage surges

4.6 According to behaviour in presence of d.c. components

4.7 According to time-delay (in presence of a residual current)

4.8 According to the protection against external influences

4.9 According to the method of mounting

4.10 According to the method of connection

4.11 According to the instantaneous tripping current (see 3.4.18)

4.12 According to the I2t characteristic

4.13 According to the type of terminals

5 Characteristics of RCBOs

5.1 Summary of characteristics

5.2 Rated quantities and other characteristics

5.2.1 Rated voltage

5.2.2 Rated current (In)

5.2.3 Rated residual operating current (IΔn)

5.2.4 Rated residual non-operating current (IΔno)

5.2.5 Rated frequency

5.2.6 Rated short-circuit capacity (Icn)

5.2.7 Rated residual making and breaking capacity (IΔm)

5.2.8 RCBO type S

5.2.9 Operating characteristics in case of residual currents with d.c. components

5.3 Standard and preferred values

5.3.1 Preferred values of rated voltage (Un)

5.3.2 Preferred values of rated current (In)

5.3.3 Standard values of rated residual operating current (IΔn)

5.3.4 Standard value of residual non-operating current (IΔno)

5.3.5 Standard values of rated frequency

5.3.6 Values of rated short-circuit capacity

5.3.7 Minimum value of the rated residual making and breaking capacity (IΔm)

5.3.8 Limiting values of break time and non-actuating time for RCBO of type AC and A

5.3.9 Standard ranges of overcurrent instantaneous tripping

5.3.10 Standard values of rated impulse withstand voltage (Uimp)

6 Marking and other product information

7 Standard conditions for operation in service and for installation

7.1 Standard conditions

7.2 Conditions of installation

7.3 Pollution degree

8 Requirements for construction and operation

8.1 Mechanical design

8.1.1 General

8.1.2 Mechanism

8.1.3 Clearances and creepage distances (see also Annex B)

8.1.4 Screws, current‑carrying parts and connections

8.1.5 Terminals for external conductors

8.1.6 Non-interchangeability

8.2 Protection against electric shock

8.3 Dielectric properties and isolating capability

8.4 Temperature-rise

8.4.1 Temperature-rise limits

8.4.2 Ambient air temperature

8.5 Operating characteristics

8.5.1 Under residual current conditions

8.5.2 Under overcurrent conditions

8.6 Mechanical and electrical endurance

8.7 Performance at short‑circuit currents

8.8 Resistance to mechanical shock and impact

8.9 Resistance to heat

8.10 Resistance to abnormal heat and to fire

8.11 Test device

8.12 Requirements for RCBOs functionally dependent on line voltage

8.13 Void

8.14 Behaviour of RCBOs in case of current surges caused by impulse voltages

8.15 Behaviour of RCBOs in case of earth fault currents comprising a d.c. component

8.16 Reliability

8.17 Electromagnetic compatibility (EMC)

9 Tests

9.1 General

9.2 Test conditions

9.3 Test of indelibility of marking

9.4 Test of reliability of screws, current-carrying parts and connections

9.5 Test of reliability of screw-type terminals for external copper conductors

9.6 Verification of protection against electric shock

9.7 Test of dielectric properties

9.7.1 Resistance to humidity

9.7.2 Insulation resistance of the main circuit

9.7.3 Dielectric strength of the main circuit

9.7.4 Insulation resistance and dielectric strength of auxiliary circuits

9.7.5 Secondary circuit of detection transformers

9.7.6 Capability of control circuits connected to the main circuit withstanding high d.c. voltages due to insulation measurements

9.7.7 Verification of impulse withstand voltages (across clearances and across solid insulation) and of leakage current across open contacts

9.8 Test of temperature-rise

9.8.1 Ambient air temperature

9.8.2 Test procedure

9.8.3 Measurement of the temperature of parts

9.8.4 Temperature-rise of a part

9.9 Verification of the operating characteristic

9.9.1 Verification of the operating characteristics under residual current conditions

9.9.2 Verification of the operating characteristic under overcurrent conditions

9.10 Verification of mechanical and electrical endurance

9.10.1 General test conditions

9.10.2 Test procedure

9.10.3 Condition of the RCBO after test

9.11 Verification of the trip-free mechanism

9.11.1 General test conditions

9.11.2 Test procedure

9.12 Short-circuit tests

9.12.1 General conditions for test

9.12.2 Test circuit for short-circuit performance

9.12.3 Values of test quantities

9.12.4 Tolerances on test quantities

9.12.5 Power factor of the test circuit

9.12.6 Measurement and verification of I2t and of the peak current (Ip)

9.12.7 Calibration of the test circuit

9.12.8 Interpretation of records

9.12.9 Condition of the RCBO for test

9.12.10 Behaviour of the RCBO during short‑circuit tests

9.12.11 Test procedure

9.12.12 Verification of the RCBO after short-circuit test

9.12.13 Verification of the rated residual making and breaking capacity (IΔm)

9.13 Verification of resistance to mechanical shock and impact

9.13.1 Mechanical shock

9.13.2 Mechanical impact

9.14 Test of resistance to heat

9.15 Test of resistance to abnormal heat and to fire

9.16 Verification of the operation of the test device at the limits of rated voltage

9.17 Verification of the behaviour of RCBOs functionally dependent on line voltage, classified under 4.1.2.1, in case of failure of the line voltage

9.17.1 Determination of the limiting value of the line voltage (Ux)

9.17.2 Verification of the automatic opening in case of failure of the line voltage

9.17.3 Verification of the correct operation, in presence of a residual current, for RCBOs opening with delay in case of failure of the line voltage

9.17.4 Verification of correct operation of RCBOs with three or four current paths, in presence of a residual current, the neutral and one line terminal only being energized

9.17.5 Verification of the reclosing function of automatically reclosing RCBOs

9.18 Void

9.19 Verification of behaviour of RCBOs in case of current surges caused by impulse voltages

9.19.1 Current surge test for all RCBOs (0,5 μs/100 kHz ring wave test)

9.19.2 Verification of behaviour at surge currents up to 3 000 A (8/20 μs surge current test)

9.20 Void

9.21 Void

9.22 Verification of reliability

9.22.1 Climatic test

9.22.2 Test with temperature of 40 °C

9.23 Verification of ageing of electronic components

9.24 Electromagnetic compatibility (EMC)

9.24.1 Tests covered by the present standard

9.24.2 Additional tests

9.25 Test of resistance to rusting

Annex A (normative) Test sequence and number of samples to be submitted for certification purposes

Annex B (normative) Determination of clearances and creepage distances

Annex C (normative) Arrangement for the detection of the emission of ionized gases during short-circuit tests

Annex D (normative) Routine tests

Annex E (normative) Special requirements for auxiliary circuits for safety extra-low voltage

Annex F (normative) Coordination between RCBOs and separate fuses associated in the same circuit

Annex G (normative) Additional requirements and tests for RCBOs consisting of a circuit-breaker and a residual current unit designed for assembly on site

Annex H (informative) Void

Annex IA (informative) Methods for determination of short-circuit power-factor

Annex IB (informative) Glossary of symbols

Annex IC (informative) Examples of terminals

Annex ID (informative) Correspondence between ISO and AWG copper conductors

Annex IE (informative) Follow-up testing programme for RCBOs

Annex J (normative) Particular requirements for RCBOs with screwless type terminals for external copper conductors

Annex K (normative) Particular requirements for RCBOs with flat quick-connect terminations

Annex L (normative) Specific requirements for RCBOs with screw-type terminals for external untreated aluminium conductors and with aluminium screw-type terminals for use with copper or with aluminium conductors

Bibliography

APPENDIX ZZ (normative) VARIATIONS TO IEC 61009-1, ED. 3.2 (2013) FOR APPLICATION IN AUSTRALIA AND NEW ZEALAND

Amendment control sheet

Figure 1 — Thread-forming tapping screw (3.6.10)

Figure 2 — Thread-cutting tapping screw (3.6.11)

Figure 3 — Jointed test finger (9.6)

Figure 4 — Test circuit for the verification of – operating characteristics (9.9.1)– trip-free mechanism (9.11)– behaviour in case of failure of line voltage (9.17.3 and 9.17.4) for RCBOs functionally dependent on line voltage

Figure 5 — Test circuit for the verification of the correct operation of RCBOs, in the case of residual pulsating direct currents

Figure 6 — Test circuit for the verification of the correct operation in case of residual pulsating direct currents in presence of a standing smooth direct current of 0,006 A

Figure 7 — Typical diagram for all short-circuit tests except for 9.12.11.2.2

Figure 8 — Typical diagram for short-circuit tests according to 9.12.11.2.2

Figure 9 — Detail of impedances Z, Z1 and Z2

Figure 10 — Void

Figure 11 — Void

Figure 12 — Void

Figure 13 — Example of calibration record for short-circuit test

Figure 14 — Mechanical shock test apparatus (9.13.1)

Figure 15 — Mechanical impact test apparatus (9.13.2.1)

Figure 16 — Striking element for pendulum impact test apparatus (9.13.2.1)

Figure 17 — Mounting support for sample for mechanical impact test (9.13.2.1)

Figure 18 — Example of mounting an unenclosed RCBO for mechanical impact test (9.13.2.1)

Figure 19 — Example of mounting of panel mounting type RCBO for the mechanical impact test (9.13.2.1)

Figure 20 — Application of force for mechanical impact test of rail mounted RCBO (9.13.2.2)

Figure 21 — Ball-pressure test apparatus (9.14.2)

Figure 22 — Void

Figure 23 — Stabilizing period for reliability test (9.22.1.3)

Figure 24 — Reliability test cycle (9.22.1.3)

Figure 25 — Example of a test circuit for verification of ageing of electronic components (9.23)

Figure 26 — Damped oscillator current wave, 0,5 μs/100 kHz

Figure 27 — Test circuit for the ring wave test at RCBOs

Figure 28 — Surge current impulse 8/20 μs

Figure 29 — Test circuit for the surge current test at RCBOs

Figure B.1 — Examples of methods of measuring creepage distances and clearances

Figure C.1 — Test arrangement

Figure C.2 — Grid

Figure C.3 — Grid circuit

Figure IC.1 — Examples of pillar terminals

Figure IC.2 — Example of screw terminals and stud terminals

Figure IC.3 — Example of saddle terminals

Figure IC.4 — Examples of lug terminals

Figure J.1 — Connecting samples

Figure J.2 — Examples of screwless-type terminals

Figure K.1 — Example of position of the thermocouple for measurement of the temperature-rise

Figure K.2 — Dimensions of male tabs

Figure K.3 — Dimensions of round dimple detents (see Figure K.2)

Figure K.4 — Dimensions of rectangular dimple detents (see Figure K.2)

Figure K.5 — Dimensions of hole detents

Figure K.6 — Dimensions of female connectors

Figure L.1 — General arrangement for the test

Figure L.2

Table 1 — Standard values of rated short‑circuit capacity

Table 2 — Limiting values of break time and non-actuating time for alternating residual currents (r.m.s. values) for type AC and A RCBO

Table 3 — Maximum values of break time for half-wave residual currents (r.m.s. values) for type A RCBO

Table 4 — Ranges of overcurrent instantaneous tripping

Table 5 — Rated impulse withstand voltage as a function of the nominal voltage of the installation

Table 6 — Standard conditions for operation in service

Table 7 — Minimum clearances and creepage distances

Table 8 — Connectable cross-sections of copper conductors for screw-type terminals

Table 9 — Temperature-rise values

Table 10 — Time-current operating characteristics

Table 11 — Requirements for RCBOs functionally dependent on line voltage

Table 12 — List of type tests

Table 13 — Test copper conductors corresponding to the rated currents

Table 14 — Screw thread diameters and applied torques

Table 15 — Pulling forces

Table 17 — Test voltage of auxiliary circuits

Table 19 — Test voltage for verification of impulse withstand voltage

Table 28 — Test voltage for verifying the suitability for isolation, referred to the rated impulse withstand voltage of the RCBO and the altitude where the test is carried out

Table 20 — List of short-circuit tests

Table 21 — Power factor ranges of the test circuit

Table 22 — Ratio between service short-circuit capacity (Ics) and rated short-circuit capacity (Icn) – (factor k)

Table 23 — Test procedure for Ics in the case of single- and two-pole RCBOs

Table 24 — Test procedure for Ics in the case of three- and four-pole RCBOs

Table 25 — Test procedure for Icn

Table 27 — Tests covered by this standard

Table 29 — Test to be carried out according to IEC 61543

Table A.1 — Test sequences

Table A.2 — Number of samples for full test procedure

Table A.3 — Number of samples for simplified test procedure

Table A.4 — Test sequences for RCBOs having different instantaneous tripping currents

Table A.5 — Test sequences for RCBOs of different classification according to 4.6

Table IE.1 — Test sequences during follow-up inspections

Table IE.2 — Number of samples to be tested

Table J.1 — Connectable conductors

Table J.2 — Cross-sections of copper conductors connectable to screwless-type terminals

Table J.3 — Pull forces

Table K.1 — Informative table on colour code of female connectors in relationship with the cross section of the conductor

Table K.2 — Overload test forces

Table K.3 — Dimensions of tabs

Table K.4 — Dimensions of female connectors

Table L.1 — Marking for terminals

Table L.2 — Connectable cross-sections of aluminium conductors for screw-type terminals

Table L.3 — List of tests according to the material of conductors and terminals

Table L.4 — Connectable conductors and their theoretical diameters

Table L.5 — Cross sections (S) of aluminium test conductors corresponding to the rated currents

Table L.6 — Test conductor length

Table L.7 — Equalizer and busbar dimensions

Table L.8 — Test current as a function of rated current

Table L.9 — Example of calculation for determining the average temperature deviation D

Table 2 — Limiting values of break time and non-actuating time(s) for type AC and A RCBOs alternating residual currents (r.m.s. values)

Table 2.1 — Limiting values of break time(s) RCBOs alternating residual currents (r.m.s. values) for type 1 RCBO

Table 3.1 — Maximum values of break time for half-wave pulsating residual currents (r.m.s. values) for type 1 RCBOs