Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems

IEC 60099-4:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. The numerous changes between the second and third editions are listed in the Foreward of the document. Keywords: testing of gapless metal-oxide surge arresters for a.c.power systems

Parafoudres - Partie 4: Parafoudres à oxyde métallique sans éclateur pour réseaux à courant alternatif

L'IEC 60099-4:2014 s'applique aux parafoudres à résistance variable à oxyde métallique sans éclateur conçus pour limiter les surtensions sur les circuits d'alimentation à courant alternatif avec Us supérieure à 1 kV. Cette troisième édition annule et remplace la deuxième édition parue en 2009. Cette édition constitue une révision technique. Les nombreux changements entre les deuxième et troisième éditions sont répertoriés dans l'avant-propos du document. Mots clés: essais des parafoudres sans éclateur à oxyde métallique utilisés sur les réseaux de puissance en courant alternatif

General Information

Status
Published
Publication Date
29-Jun-2014
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
30-Jun-2014
Completion Date
30-Jun-2014
Ref Project

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IEC 60099-4
Edition 3.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surge arresters –
Part 4: Metal-oxide surge arresters without gaps for a.c. systems
Parafoudres –
Partie 4: Parafoudres à oxyde métallique sans éclateur pour réseaux à courant
alternatif
IEC 60099-4:2014-06(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60099-4
Edition 3.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surge arresters –
Part 4: Metal-oxide surge arresters without gaps for a.c. systems
Parafoudres –
Partie 4: Parafoudres à oxyde métallique sans éclateur pour réseaux à courant
alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 29.120.50; 29.240.10 ISBN 978-2-8322-1646-0

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 60099-4:2014 © IEC 2014
CONTENTS

FOREWORD ......................................................................................................................... 11

INTRODUCTION ................................................................................................................... 14

1 Scope ............................................................................................................................ 15

2 Normative references .................................................................................................... 15

3 Terms and definitions .................................................................................................... 16

4 Identification and classification ...................................................................................... 26

4.1 Arrester identification ............................................................................................ 26

4.2 Arrester classification ........................................................................................... 26

5 Standard ratings and service conditions ........................................................................ 27

5.1 Standard rated voltages ........................................................................................ 27

5.2 Standard rated frequencies ................................................................................... 27

5.3 Standard nominal discharge currents .................................................................... 27

5.4 Service conditions ................................................................................................. 27

5.4.1 Normal service conditions .............................................................................. 27

5.4.2 Abnormal service conditions .......................................................................... 27

6 Requirements ................................................................................................................ 28

6.1 Insulation withstand .............................................................................................. 28

6.2 Reference voltage ................................................................................................. 28

6.3 Residual voltages ................................................................................................. 28

6.4 Internal partial discharges ..................................................................................... 29

6.5 Seal leak rate........................................................................................................ 29

6.6 Current distribution in a multi-column arrester ....................................................... 29

6.7 Thermal stability ................................................................................................... 29

6.8 Long term stability under continuous operating voltage ......................................... 29

6.9 Heat dissipation behaviour of test sample ............................................................. 29

6.10 Repetitive charge transfer withstand ..................................................................... 29

6.11 Operating duty ...................................................................................................... 29

6.12 Power-frequency voltage versus time characteristics of an arrester ...................... 29

6.13 Short-circuit performance ...................................................................................... 30

6.14 Disconnector ......................................................................................................... 30

6.14.1 Disconnector withstand .................................................................................. 30

6.14.2 Disconnector operation .................................................................................. 30

6.15 Requirements on internal grading components ...................................................... 30

6.16 Mechanical loads .................................................................................................. 31

6.16.1 General ......................................................................................................... 31

6.16.2 Bending moment ............................................................................................ 31

6.16.3 Resistance against environmental stresses ................................................... 31

6.16.4 Insulating base and mounting bracket ............................................................ 31

6.16.5 Mean value of breaking load (MBL)................................................................ 31

6.16.6 Electromagnetic compatibility ........................................................................ 31

6.17 End of life ............................................................................................................. 31

6.18 Lightning impulse discharge capability .................................................................. 31

7 General testing procedure ............................................................................................. 32

7.1 Measuring equipment and accuracy ...................................................................... 32

7.2 Reference voltage measurements ......................................................................... 32

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IEC 60099-4:2014 © IEC 2014 – 3 –

7.3 Test samples ........................................................................................................ 32

7.3.1 General ......................................................................................................... 32

7.3.2 Arrester section requirements ........................................................................ 33

8 Type tests (design tests) ............................................................................................... 34

8.1 General ................................................................................................................. 34

8.2 Insulation withstand tests ...................................................................................... 35

8.2.1 General ......................................................................................................... 35

8.2.2 Tests on individual unit housings ................................................................... 36

8.2.3 Tests on complete arrester assemblies .......................................................... 36

8.2.4 Ambient air conditions during tests ................................................................ 36

8.2.5 Wet test procedure ........................................................................................ 36

8.2.6 Lightning impulse voltage test ........................................................................ 37

8.2.7 Switching impulse voltage test ....................................................................... 37

8.2.8 Power-frequency voltage test......................................................................... 37

8.3 Residual voltage tests ........................................................................................... 38

8.3.1 General ......................................................................................................... 38

8.3.2 Steep current impulse residual voltage test .................................................... 38

8.3.3 Lightning impulse residual voltage test .......................................................... 39

8.3.4 Switching impulse residual voltage test .......................................................... 39

8.4 Test to verify long term stability under continuous operating voltage ..................... 39

8.4.1 General ......................................................................................................... 39

8.4.2 MO resistor elements stressed below U ..................................................... 40

ref

8.4.3 Test procedure for MO resistor elements stressed at or above U ............... 41

ref

8.5 Test to verify the repetitive charge transfer rating, Qrs .......................................... 44

8.5.1 General ......................................................................................................... 44

8.5.2 Test procedure .............................................................................................. 45

8.5.3 Test evaluation .............................................................................................. 46

8.5.4 Rated values of repetitive charge transfer rating, Q .................................... 46

8.6 Heat dissipation behaviour of test sample ............................................................. 47

8.6.1 General ......................................................................................................... 47

8.6.2 Arrester section requirements ........................................................................ 47

8.6.3 Procedure to verify thermal equivalency between complete arrester and

arrester section ............................................................................................. 47

8.7 Operating duty test ............................................................................................... 47

8.7.1 General ......................................................................................................... 47

8.7.2 Test procedure .............................................................................................. 48

8.7.3 Rated thermal energy and charge values, W and Q ................................. 51

th th

8.8 Power-frequency voltage-versus-time test ............................................................. 52

8.8.1 General ......................................................................................................... 52

8.8.2 Test samples ................................................................................................. 53

8.8.3 Initial measurements ..................................................................................... 54

8.8.4 Test procedure .............................................................................................. 54

8.8.5 Test evaluation .............................................................................................. 55

8.9 Tests of arrester disconnector ............................................................................... 55

8.9.1 General ......................................................................................................... 55

8.9.2 Operating withstand test ................................................................................ 55

8.9.3 Disconnector operation .................................................................................. 56

8.9.4 Mechanical tests ............................................................................................ 57

8.9.5 Temperature cycling and seal pumping test ................................................... 58

---------------------- Page: 5 ----------------------
– 4 – IEC 60099-4:2014 © IEC 2014

8.10 Short-circuit tests .................................................................................................. 58

8.10.1 General ......................................................................................................... 58

8.10.2 Preparation of the test samples ..................................................................... 59

8.10.3 Mounting of the test sample ........................................................................... 63

8.10.4 High-current short-circuit tests ....................................................................... 64

8.10.5 Low-current short-circuit test ......................................................................... 67

8.10.6 Evaluation of test results ............................................................................... 67

8.11 Test of the bending moment .................................................................................. 67

8.11.1 General ......................................................................................................... 67

8.11.2 Overview ....................................................................................................... 67

8.11.3 Sample preparation ....................................................................................... 68

8.11.4 Test procedure .............................................................................................. 68

8.11.5 Test evaluation .............................................................................................. 68

8.11.6 Test on insulating base and mounting bracket ............................................... 69

8.12 Environmental tests .............................................................................................. 69

8.12.1 General ......................................................................................................... 69

8.12.2 Sample preparation ....................................................................................... 69

8.12.3 Test procedure .............................................................................................. 69

8.12.4 Test evaluation .............................................................................................. 70

8.13 Seal leak rate test ................................................................................................. 70

8.13.1 General ......................................................................................................... 70

8.13.2 Sample preparation ....................................................................................... 70

8.13.3 Test procedure .............................................................................................. 70

8.13.4 Test evaluation .............................................................................................. 70

8.14 Radio interference voltage (RIV) test .................................................................... 70

8.15 Test to verify the dielectric withstand of internal components ................................ 72

8.15.1 General ......................................................................................................... 72

8.15.2 Test procedure .............................................................................................. 72

8.15.3 Test evaluation .............................................................................................. 72

8.16 Test of internal grading components ..................................................................... 72

8.16.1 Test to verify long term stability under continuous operating voltage .............. 72

8.16.2 Thermal cyclic test ......................................................................................... 73

9 Routine tests and acceptance tests ............................................................................... 74

9.1 Routine tests......................................................................................................... 74

9.2 Acceptance tests .................................................................................................. 75

9.2.1 Standard acceptance tests ............................................................................ 75

9.2.2 Special thermal stability test .......................................................................... 76

10 Test requirements on polymer-housed surge arresters .................................................. 76

10.1 Scope ................................................................................................................... 76

10.2 Normative references ............................................................................................ 76

10.3 Terms and definitions ............................................................................................ 76

10.4 Identification and classification ............................................................................. 76

10.5 Standard ratings and service conditions ................................................................ 76

10.6 Requirements ....................................................................................................... 76

10.7 General testing procedure ..................................................................................... 77

10.8 Type tests (design tests) ....................................................................................... 77

10.8.1 General ......................................................................................................... 77

10.8.2 Insulation withstand tests .............................................................................. 77

---------------------- Page: 6 ----------------------
IEC 60099-4:2014 © IEC 2014 – 5 –

10.8.3 Residual voltage tests ................................................................................... 77

10.8.4 Test to verify long term stability under continuous operating voltage .............. 78

10.8.5 Test to verify the repetitive charge transfer rating, Q .................................. 78

10.8.6 Heat dissipation behaviour of test sample ...................................................... 78

10.8.7 Operating duty tests ...................................................................................... 78

10.8.8 Power frequency voltage-versus-time test...................................................... 78

10.8.9 Tests of arrester disconnector ....................................................................... 79

10.8.10 Short-circuit tests .......................................................................................... 79

10.8.11 Test of the bending moment .......................................................................... 85

10.8.12 Environmental tests ....................................................................................... 92

10.8.13 Seal leak rate test .......................................................................................... 92

10.8.14 Radio interference voltage (RIV) test ............................................................. 92

10.8.15 Test to verify the dielectric withstand of internal components ......................... 92

10.8.16 Test of internal grading components .............................................................. 92

10.8.17 Weather ageing test....................................................................................... 92

10.9 Routine tests......................................................................................................... 94

11 Test requirements on gas-insulated metal enclosed arresters (GIS-arresters) ............... 94

11.1 Scope ................................................................................................................... 94

11.2 Normative references ............................................................................................ 94

11.3 Terms and definitions ............................................................................................ 94

11.4 Identification and classification ............................................................................. 94

11.5 Standard ratings and service conditions ................................................................ 95

11.6 Requirements ....................................................................................................... 95

11.6.1 Withstand voltages ........................................................................................ 95

11.7 General testing procedures ................................................................................... 98

11.8 Type tests (design tests) ....................................................................................... 98

11.8.1 General ......................................................................................................... 98

11.8.2 Insulation withstand tests .............................................................................. 98

11.8.3 Residual voltage tests ................................................................................. 101

11.8.4 Test to verify long term stability under continuous operating voltage ............ 101

11.8.5 Test to verify the repetitive charge transfer rating, Q ................................ 101

11.8.6 Heat dissipation behaviour of test sample .................................................... 101

11.8.7 Operating duty tests .................................................................................... 101

11.8.8 Power frequency voltage-versus-time test.................................................... 101

11.8.9 Tests of arrester disconnector ..................................................................... 101

11.8.10 Short-circuit tests ........................................................................................ 101

11.8.11 Test of the bending moment ........................................................................ 101

11.8.12 Environmental tests ..................................................................................... 102

11.8.13 Seal leak rate test ........................................................................................ 102

11.8.14 Radio interference voltage (RIV) test ........................................................... 102

11.8.15 Test to verify the dielectric withstand of internal components ....................... 102

11.8.16 Test of internal grading components ............................................................ 102

11.9 Routine tests....................................................................................................... 102

11.10 Test after erection on site ................................................................................... 102

12 Separable and dead-front arresters ............................................................................. 102

12.1 Scope ................................................................................................................. 102

12.2 Normative references .......................................................................................... 103

12.3 Terms and definitions .......................................................................................... 103

---------------------- Page: 7 ----------------------
– 6 – IEC 60099-4:2014 © IEC 2014

12.4 Identification and classification ........................................................................... 103

12.5 Standard ratings and service conditions .............................................................. 103

12.6 Requirements ..................................................................................................... 103

12.7 General testing procedure .
...

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