Power frequency overvoltage protective devices (POPs) for household and similar applications

IEC 63052:2019 applies to devices for power frequency overvoltage protection (hereafter referred to as "POP") for household and similar uses, with a rated frequency of 50 Hz, 60 Hz or 50/60 Hz, with rated voltage not exceeding 230 V AC (between phase and neutral), and with rated current not exceeding 63 A, either consisting of a functional unit in combination with a main protective device (MPD), or as one single device having opening means able to open the protected circuit in specified conditions.
The main protective device is a circuit-breaker, an RCCB or an RCBO.
The contents of the corrigendum of November 2019 have been included in this copy.

Dispositifs de protection contre les surtensions à fréquence industrielle (POP) pour les applications domestiques et similaires

L'IEC 63052:2019 s'applique aux dispositifs de protection contre les surtensions à fréquence industrielle (appelés ici "dispositifs POP" - Power frequency Overvoltage Protection) pour les appareils domestiques et similaires, avec une fréquence assignée de 50 Hz, 60 Hz ou 50 Hz/60 Hz, une tension assignée maximale de 230 V en courant alternatif (entre phase et neutre) et un courant assigné maximal de 63 A, composés d'une unité fonctionnelle combinée à un dispositif de protection principal (MPD) ou se présentant sous la forme d'un dispositif unique équipé d'un système d'ouverture permettant d'ouvrir le circuit protégé dans les conditions spécifiées.
Le dispositif de protection principal est un disjoncteur, un interrupteur différentiel sans protection incorporée contre les surintensités (ID) ou un disjoncteur différentiel résiduel avec protection incorporée contre les surintensités (DD).
Le contenu du corrigendum de novembre 2019 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
20-Aug-2019
Current Stage
PPUB - Publication issued
Completion Date
21-Aug-2019
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IEC 63052
Edition 1.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power frequency overvoltage protection devices (POPs) for household and
similar applications
Dispositifs de protection contre les surtensions à fréquence industrielle (POP)
pour les applications domestiques et similaires
IEC 63052:2019-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 63052
Edition 1.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power frequency overvoltage protection devices (POPs) for household and
similar applications
Dispositifs de protection contre les surtensions à fréquence industrielle (POP)
pour les applications domestiques et similaires
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-7268-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 63052:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 8

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms, definitions and abbreviated terms ...................................................................... 12

3.1 Terms and definitions............................................................................................ 12

3.2 Abbreviated terms ................................................................................................. 14

4 Classification ................................................................................................................. 15

4.1 According to the method of construction ............................................................... 15

4.2 According to the number of monitored line-to-neutral conductor voltages .............. 15

4.3 According to the method of mounting .................................................................... 15

5 Characteristics of POPs ................................................................................................. 15

5.1 Summary of characteristics ................................................................................... 15

5.2 Rated quantities and other characteristics............................................................. 16

5.2.1 Rated voltage ................................................................................................ 16

5.2.2 Rated current (I ) .......................................................................................... 16

5.2.3 Rated frequency ............................................................................................ 16

5.2.4 Rated making and breaking capacity (I ) ...................................................... 16

5.2.5 Rated making and breaking capacity on one pole (I ) ................................. 16

5.3 Standard and preferred values .............................................................................. 16

5.3.1 Preferred values of rated voltage (U ) ........................................................... 16

5.3.2 Preferred values of rated current (I ) ............................................................. 17

5.3.3 Preferred values of rated frequency ............................................................... 17

5.3.4 Minimum value of the rated making and breaking capacity (I ) ..................... 17

5.3.5 Minimum value of the rated making and breaking capacity on one pole

(I ) ............................................................................................................. 17

5.3.6 Standard and preferred values of the rated conditional short-circuit
current (I ) and standard and preferred values of the rated conditional

short-circuit current for one pole (I ) .......................................................... 17

nc1

5.3.7 Limit values of the break times and non-actuating times ................................ 18

5.3.8 Standard value of rated impulse withstand voltage (U ) ............................. 18

imp

5.4 Coordination with short-circuit protective devices (SCPDs) ................................... 18

5.4.1 General ......................................................................................................... 18

5.4.2 Rated conditional short-circuit current (I ) and rated conditional short-

circuit on one pole (I ) ............................................................................... 19

nc1

5.4.3 Operating characteristics of opening means for POPs according to 4.1.4....... 19

6 Marking and other product information ........................................................................... 19

6.1 Marking ................................................................................................................. 19

6.2 Additional marking for POPs according to 4.1.4 .................................................... 22

6.2.1 Marking of POPs ........................................................................................... 22

6.2.2 Instructions for wiring and operation .............................................................. 22

7 Standard conditions for operation in service and for installation ..................................... 22

7.1 Standard conditions .............................................................................................. 22

7.2 Conditions of installation ....................................................................................... 23

7.3 Pollution degree .................................................................................................... 23

8 Requirements for construction and operation ................................................................. 23

8.1 General ................................................................................................................. 23

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IEC 63052:2019 © IEC 2019 – 3 –

8.2 Mechanical design ................................................................................................ 24

8.2.1 General ......................................................................................................... 24

8.2.2 Mechanism .................................................................................................... 25

8.2.3 Clearances and creepage distances .............................................................. 26

8.2.4 Screws, current-carrying parts and connections ............................................. 29

8.2.5 Terminals for external conductors .................................................................. 30

8.3 Protection against electric shock ........................................................................... 32

8.4 Dielectric properties and isolating capability.......................................................... 33

8.5 Temperature-rise .................................................................................................. 33

8.5.1 Temperature-rise limits .................................................................................. 33

8.5.2 Ambient air temperature ................................................................................ 34

8.6 Operating characteristics ...................................................................................... 34

8.6.1 Operating characteristics of the MPD part ...................................................... 34

8.6.2 Operating characteristics of the POP ............................................................. 34

8.7 Mechanical and electrical endurance .................................................................... 34

8.8 Performance at short-circuit currents .................................................................... 35

8.9 Resistance to mechanical shock and impact ......................................................... 35

8.10 Resistance to heat ................................................................................................ 35

8.11 Resistance to abnormal heat and to fire ................................................................ 35

8.12 Safety performance of overstressed POPs ............................................................ 35

8.13 Behaviour of POPs in case of current surges caused by impulse voltages ............ 35

8.14 Reliability .............................................................................................................. 35

8.15 Electromagnetic compatibility (EMC) ..................................................................... 35

9 Testing procedure.......................................................................................................... 36

9.1 General ................................................................................................................. 36

9.1.1 General testing procedure for the different type of POPs ............................... 36

9.1.2 Characteristics of POPs are checked by means of type tests ......................... 37

9.1.3 For certification purposes, type tests are carried out in test sequences ......... 38

9.2 Test conditions ..................................................................................................... 38

9.3 Test of indelibility of marking ................................................................................ 39

9.4 Test of reliability of screws, current-carrying parts and connections ...................... 39

9.5 Test of reliability of terminals for external conductors ............................................ 41

9.6 Verification of protection against electric shock ..................................................... 42

9.7 Test of dielectric properties ................................................................................... 42

9.7.1 Resistance to humidity................................................................................... 42

9.7.2 Insulation resistance of the main circuit ......................................................... 43

9.7.3 Dielectric strength of the main circuit ............................................................. 44

9.7.4 Insulation resistance and dielectric strength of auxiliary circuits .................... 44

9.7.5 Capability of control circuits connected to the main circuit withstanding

high DC voltages due to insulation measurements ......................................... 45

9.7.6 Verification of impulse withstand voltages and of leakage current across

open contacts ................................................................................................ 46

9.8 Test of temperature-rise ........................................................................................ 48

9.8.1 Ambient air temperature ................................................................................ 48

9.8.2 Test procedure .............................................................................................. 48

9.8.3 Measurement of the temperature of parts ...................................................... 49

9.8.4 Temperature-rise of a part ............................................................................. 49

9.9 Verification of the operating characteristics ........................................................... 49

9.9.1 Test circuit ..................................................................................................... 49

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– 4 – IEC 63052:2019 © IEC 2019
9.9.2 Off-load characteristic tests with sinusoidal alternating voltages at the

reference temperature of 20 °C ± 5 °C ........................................................... 49

9.9.3 Test of the effect of the ambient air temperature on the operating

characteristics ............................................................................................... 50

9.10 Verification of mechanical and electrical endurance .............................................. 50

9.10.1 General test conditions .................................................................................. 50

9.10.2 Test procedure .............................................................................................. 50

9.10.3 Additional test for POP according to 4.1.4 ..................................................... 51

9.10.4 Condition of the POP after the test ................................................................ 51

9.11 Verification of the behaviour of the POP under short-circuit conditions .................. 52

9.11.1 General ......................................................................................................... 52

9.11.2 Short-circuit tests for POPs according to 4.1.4 ............................................... 52

9.12 Verification of resistance to mechanical shock and impact .................................... 59

9.12.1 Mechanical shock .......................................................................................... 59

9.12.2 Mechanical impact ......................................................................................... 60

9.13 Test of resistance to heat ...................................................................................... 62

9.13.1 Test on complete product .............................................................................. 62

9.13.2 Ball pressure test........................................................................................... 63

9.14 Test of resistance to abnormal heat and to fire ..................................................... 64

9.15 Test of safety performance of overstressed POPs ................................................. 65

9.16 Verification of behaviour of POPs in case of current surges caused by

impulse voltages ................................................................................................... 65

9.16.1 General ......................................................................................................... 65

9.16.2 Verification of behaviour at surge currents up to 3 000 A (8/20 µs surge

current test) ................................................................................................... 66

9.17 Verification of ageing of electronic components .................................................... 66

9.18 Electromagnetic compatibility (EMC) ..................................................................... 67

9.18.1 General ......................................................................................................... 67

9.18.2 EMC tests covered by other clauses/subclauses of the present

document ...................................................................................................... 67

9.18.3 EMC tests to be performed ............................................................................ 67

9.18.4 POPs performance criteria ............................................................................. 69

9.18.5 Emission tests ............................................................................................... 70

9.19 Tests of creepage distances and clearances for electronic circuits (abnormal

conditions) ............................................................................................................ 71

9.19.1 General ......................................................................................................... 71

9.19.2 Abnormal conditions ...................................................................................... 71

9.19.3 Test procedure .............................................................................................. 71

9.20 Requirements for capacitors and specific resistors and inductors used in

electronic circuits .................................................................................................. 73

9.20.1 General ......................................................................................................... 73

9.20.2 Capacitors ..................................................................................................... 73

9.20.3 Resistors ....................................................................................................... 74

9.20.4 Inductors and windings .................................................................................. 74

Annex A (normative) Test sequences and number of samples to be submitted for

certification purposes ............................................................................................................ 91

A.1 Test sequences .................................................................................................... 91

A.2 Number of samples to be submitted for full test procedure .................................... 96

A.3 Number of samples to be submitted for simplified test procedures in case of
simultaneous submission of a range of POPs of the same fundamental

design ................................................................................................................... 96

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IEC 63052:2019 © IEC 2019 – 5 –

Annex B (normative) Determination of clearances and creepage distances .......................... 98

B.1 General ................................................................................................................. 98

B.2 Orientation and location of a creepage distance .................................................... 98

B.3 Creepage distances where more than one material is used ................................... 98

B.4 Creepage distances split by floating conductive part ............................................. 98

B.5 Measurement of creepage distances and clearances ............................................ 98

Annex C (normative) Arrangement for the detection of the emission of ionized gases

during short-circuit tests ..................................................................................................... 102

Annex D (informative) Methods of determination of short-circuit power factor .................... 105

D.1 General ............................................................................................................... 105

D.2 Method I – Determination from DC components .................................................. 105

D.3 Method II – Determination with pilot generator .................................................... 105

Annex E (informative) Examples of terminal designs .......................................................... 106

Annex F (informative) Correspondence between ISO and AWG copper conductors ............ 109

Annex G (informative) SCPDs for short-circuit tests ........................................................... 110

G.1 General ............................................................................................................... 110

G.2 Silver wires ......................................................................................................... 110

G.3 Declared protective devices ................................................................................ 110

G.4 Other means ....................................................................................................... 111

Annex H (informative) POP configurations according to classification in 4.1 ...................... 112

Bibliography ........................................................................................................................ 113

Figure 1 – Thread forming tapping screw .............................................................................. 74

Figure 2 – Thread cutting tapping screw ............................................................................... 74

Figure 3 – Standard test finger (see 9.6) ............................................................................... 75

Figure 4 – Typical diagram for all short circuit tests except for the verification of the

suitability in IT systems ......................................................................................................... 76

Figure 5 – Typical diagram for the verification of the suitability in IT systems ........................ 77

Figure 6 – Detail of impedance Z, Z and Z in Figure 4 and Figure 5 .................................. 77

1 2

Figure 7 – Example of calibration record for short-circuit test (see 9.11.2.2 j)) ...................... 79

Figure 8 – Mechanical shock test apparatus (see 9.12.1) ...................................................... 80

Figure 9 – Mechanical impact test apparatus (see 9.12.2)..................................................... 81

Figure 10 – Striking element for pendulum impact test apparatus (see 9.12.2) ...................... 82

Figure 11 – Mounting support for sample for mechanical impact test (see 9.12.2) ................. 83

Figure 12 – Example of mounting of unenclosed POPs for mechanical impact test (see

9.12.2) .................................................................................................................................. 84

Figure 13 – Example of mounting of panel mounting type POPs for mechanical impact

test (see 9.12.2) ................................................................................................................... 85

Figure 14 – Application of force for mechanical test of rail mounted POPs (see 9.12.2) ........ 86

Figure 15 – Ball-pressure test apparatus (see 9.13.2) ........................................................... 86

Figure 16 – Surge current impulse 8/20 µs ............................................................................ 87

Figure 17 – Test circuit for the surge current test .................................................................. 87

Figure 18 – Example of test circuit for verification of ageing of electronic components

(see 9.17) ............................................................................................................................. 88

Figure 19 – Minimum creepage distances and clearances measured in millimetres ............... 89

---------------------- Page: 7 ----------------------
– 6 – IEC 63052:2019 © IEC 2019

Figure 20 – Minimum creepage distances and clearances as a function of peak value

of operating voltage .............................................................................................................. 90

Figure C.1 – Test arrangement ........................................................................................... 103

Figure C.2 – Grid ................................................................................................................ 104

Figure C.3 – Grid circuit ...................................................................................................... 104

Figure E.1 – Examples of pillar terminals ............................................................................ 106

Figure E.2 – Examples of screw terminals and stud terminals ............................................. 107

Figure E.3 – Examples of saddle terminals ......................................................................... 108

Figure E.4 – Examples of lug terminals ............................................................................... 108

Figure G.1 – Test apparatus for the verification of the minimum I t and I values to be

withstood by the POP ......................................................................................................... 111

Figure H.1 – POP according to classification in 4.1 ............................................................. 112

Table 1 – Limit values of break times and non-actuating times .............................................. 18

Table 2 – Rated impulse withstand voltage as a function of the nominal voltage of the

installation ............................................................................................................................ 18

Table 3 – Marking and position of marking ............................................................................ 20

Table 4 – Standard conditions for operation in service .......................................................... 23

Table 5 – Minimum clearances and creepage distances ..........................
...

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