IEC 60383-1:2023
(Main)Insulators for overhead lines with a nominal voltage above 1000 V - Part 1: Ceramic or glass insulator units for a.c. systems - Definitions, test methods and acceptance criteria
Insulators for overhead lines with a nominal voltage above 1000 V - Part 1: Ceramic or glass insulator units for a.c. systems - Definitions, test methods and acceptance criteria
IEC 60383-1:2023 applies to insulators of ceramic material or glass for use on AC overhead power lines and overhead traction lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. It also applies to insulators for use on DC overhead electric traction lines. This document applies to string insulator units, rigid overhead line insulators and to insulators of similar design when used in substations. lt does not apply to insulators forming parts of electrical apparatus or to parts used in their construction or to post insulators which are covered by IEC 60168, Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 000 V.
The object of this document is:
- to define the terms used
- to define insulator characteristics and to prescribe the conditions under which the specified values of these characteristics shall be verified
- to prescribe test methods
- to prescribe acceptance criteria.
This fifth edition cancels and replaces the fourth edition published in 1993. This edition includes the following significant technical changes with respect to the previous edition:
a) The layout of the document has been changed in order to increase readability;
b) RIV test has been added (Clause 14);
c) Impulse puncture test in air has been added (15.2);
d) Residual strength test has been added (Clause 21);
e) Zinc sleeve test has been added (Clause 28);
f) Impact test has been added (Clause 30);
g) Annex C, coatings on ceramic and glass insulators has been added;
h) Annex D, impact test has been added.
Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V - Partie 1: Éléments d’isolateurs en matière céramique ou en verre pour systèmes à courant alternatif - Définitions, méthodes d’essai et critères d’acceptation
L'IEC 60383-1:2023 s’applique aux isolateurs en céramique ou en verre destinés aux lignes aériennes de transport d’énergie et de traction électrique fonctionnant en courant alternatif à une tension nominale supérieure à 1 000 V et à une fréquence maximale de 100 Hz. Elle s’applique également aux isolateurs utilisés sur des lignes aériennes de traction électrique fonctionnant en courant continu. Le présent document s’applique aux éléments de chaînes d’isolateurs, aux isolateurs rigides de ligne aériennes et aux isolateurs de conception similaire lorsqu’ils sont utilisés dans les sous-stations. Il ne s’applique ni aux isolateurs utilisés dans les appareillages électriques, ni aux éléments utilisés pour leur construction, ni aux supports isolants qui font l’objet de l’IEC 60168, Essais des supports isolants d’intérieur et d’extérieur, en matière céramique ou en verre, destinés à des installations de tension nominale supérieure à 1 000 V.
Le présent document a pour objet:
- de définir les termes employés;
- de définir les caractéristiques des isolateurs et de spécifier les conditions dans lesquelles les valeurs spécifiées de ces caractéristiques doivent être vérifiées;
- de décrire les méthodes d’essai;
- de fixer les critères d’acceptation.
Cette cinquième édition annule et remplace la quatrième édition parue en 1993. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) La mise en page du document a été modifiée pour une meilleure lisibilité;
b) l’essai de RIV a été ajouté (Article 14);
c) l’essai de perforation par chocs dans l’air a été ajouté (15.2);
d) l’essai de résistance résiduelle a été ajouté (Article 21);
e) l’essai de la bague de zinc a été ajouté (Article 28);
f) l’essai d’impact a été ajouté (Article 30);
g) l’Annexe C relative aux revêtements des isolateurs en céramique et en verre, a été ajoutée;
h) l’Annexe D relative aux essais d’impact a été ajoutée.
General Information
Buy Standard
Standards Content (Sample)
IEC 60383-1
®
Edition 5.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Insulators for overhead lines with a nominal voltage above 1000 V –
Part 1: Ceramic or glass insulator units for a.c. systems – Definitions, test
methods and acceptance criteria
Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V –
Partie 1: Éléments d’isolateurs en matière céramique ou en verre pour systèmes
à courant alternatif – Définitions, méthodes d’essai et critères d’acceptation
IEC 60383-1:2023-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60383-1
®
Edition 5.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Insulators for overhead lines with a nominal voltage above 1000 V –
Part 1: Ceramic or glass insulator units for a.c. systems – Definitions, test
methods and acceptance criteria
Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V –
Partie 1: Éléments d’isolateurs en matière céramique ou en verre pour systèmes
à courant alternatif – Définitions, méthodes d’essai et critères d’acceptation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.080.10, 29.240.20 ISBN 978-2-8322-7128-5
Warning! Make sure that you obtained this publication from an authorized distributor.
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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60383-1:2023 © IEC 2023
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 Classification, types of insulators and insulating materials . 13
4.1 Insulator classes . 13
4.2 Insulator types . 14
4.3 Insulating materials . 14
5 Identification of insulators . 14
6 Classification of tests. 14
6.1 Type tests . 14
6.2 Sample tests . 15
6.3 Routine tests. 15
7 Cross-reference tables for tests to be performed . 15
7.1 Pin insulators . 15
7.2 Line post insulators . 17
7.3 String insulator units . 19
7.3.1 General . 19
7.3.2 Specified type tests on string insulator units . 20
7.4 Insulators for overhead electric traction lines . 24
8 Procedures for type and sample tests . 24
8.1 Insulator selection for type tests . 24
8.2 Sampling rules and procedures for sample tests . 24
8.3 Re-test procedure for sample tests . 25
9 General requirements for electrical tests . 25
10 Artificial rain parameters for wet tests . 26
11 Mounting arrangements for electrical tests . 26
12 Dry lightning impulse voltage tests . 26
12.1 General . 26
12.2 Test procedure . 26
12.3 Acceptance criteria . 26
13 Wet power frequency withstand voltage tests . 27
13.1 Test procedure . 27
13.2 Acceptance criteria . 27
14 RIV test . 27
14.1 Test procedure . 27
14.2 Acceptance criteria . 28
15 Puncture withstand test . 28
15.1 General . 28
15.2 Impulse puncture testing in air . 28
15.3 Power frequency puncture withstand test . 29
16 Routine electrical test . 29
17 Verification of the dimensions . 30
18 Electromechanical failing load test . 30
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IEC 60383-1:2023 © IEC 2023 – 3 –
18.1 Test procedure . 30
18.2 Acceptance criteria . 31
19 Mechanical failing load test. 31
19.1 Test procedure for pin and line post insulators . 31
19.2 Test procedure for string insulator units . 31
19.3 Acceptance criteria for pin insulators . 31
19.4 Acceptance criteria for string insulator units and line post insulators . 31
20 Thermal-mechanical performance test . 32
20.1 Test procedure . 32
20.2 Acceptance criteria . 33
21 Residual strength test . 33
21.1 General . 33
21.2 Previous tests . 33
21.3 Preparation of the test pieces . 33
21.4 Test procedure . 34
21.5 Test results . 34
21.6 Acceptance criteria . 34
22 Verification of the axial, radial and angular displacements . 34
22.1 Test procedure . 34
22.2 Acceptance criteria . 35
23 Verification of the locking system . 36
23.1 General . 36
23.2 Conformity of the locking device . 36
23.3 Verification of locking . 36
23.4 Position of the locking device . 36
23.5 Procedure for the operation test . 36
23.6 Acceptance criteria for the operation test . 37
24 Temperature cycle test . 37
24.1 Test procedure for ceramic or toughened glass material . 37
24.2 Test procedure for of annealed glass . 38
24.3 Special test procedure for insulators with thick sections or very large
insulators . 38
24.4 Complementary specifications . 38
24.5 Acceptance criteria . 38
25 Thermal shock test . 39
25.1 Sample test . 39
25.1.1 Test procedure . 39
25.1.2 Acceptance criteria . 39
25.2 Routine thermal shock test . 39
25.2.1 Test procedure . 39
25.2.2 Acceptance criteria . 39
26 Porosity test . 39
26.1 Test procedure . 39
26.2 Acceptance criteria . 39
27 Galvanizing test . 40
27.1 General . 40
27.2 Test procedure . 40
27.2.1 General . 40
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– 4 – IEC 60383-1:2023 © IEC 2023
27.2.2 Appearance . 40
27.2.3 Determination of the coating mass by the magnetic test method . 40
27.3 Acceptance criteria . 40
27.3.1 Acceptance criteria for the appearance test . 40
27.3.2 Acceptance criteria for the value of coating mass . 41
28 Zinc sleeve test (if applicable) . 41
28.1 General requirements concerning the zinc sleeve . 41
28.2 Type test procedure . 41
28.3 Sample test procedure . 42
29 Routine visual inspection . 42
29.1 General . 42
29.2 Insulators with ceramic insulating parts . 42
29.3 Insulators with glass insulating parts . 43
30 Impact test . 44
30.1 Test procedure . 44
30.2 Acceptance criteria . 44
31 Routine mechanical test . 44
31.1 Routine mechanical test on line post insulators . 44
31.2 Routine mechanical test on string insulator units . 45
32 Mounting arrangements for tests on pin insulators . 45
32.1 Standard mounting arrangement for electrical tests . 45
32.2 Mounting arrangements for electrical tests reproducing service conditions . 46
32.3 Mounting arrangement for the mechanical failing load test . 46
33 Coefficients for statistical analysis of the test results on line post Insulators . 46
33.1 Coefficient for type tests . 46
33.2 Coefficients for sample tests . 46
34 Mounting arrangements for tests on line post insulators . 46
34.1 Standard mounting arrangement for electrical tests . 46
34.2 Mounting arrangements for electrical tests reproducing service conditions . 47
34.3 Mounting arrangement for the mechanical failing load test . 47
35 Coefficients for statistical analysis of the test results on string insulator units . 47
35.1 Coefficient for type tests . 47
35.2 Coefficients for sample tests . 48
36 Mounting arrangements for electrical tests on string insulator units . 48
37 Mounting arrangements for electrical tests on Insulators for overhead electric
traction lines . 48
37.1 Standard mounting arrangement . 48
37.2 Mounting arrangement representing service conditions . 49
Annex A (informative) Method of comparison of the results of electromechanical or
and sample tests . 52
mechanical type
Annex B (informative) Illustration of the mechanical and electromechanical test
acceptance procedure for string insulator units and line post insulators . 54
B.1 Flow charts . 54
B.2 Calculated examples of acceptance and rejection . 56
Annex C (informative) Coatings on ceramic or glass insulators . 59
C.1 General . 59
C.2 Material fingerprinting and ageing performance . 59
C.3 Type testing . 59
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IEC 60383-1:2023 © IEC 2023 – 5 –
C.4 Sample testing . 60
C.5 Routine testing . 60
C.6 Pollution performance . 60
C.7 Acceptance criteria . 60
Annex D (informative) Impact test . 62
Figure 1 – Schematic representation of the thermal-mechanical performance test . 49
Figure 2 – Measurement of axial and radial displacements . 50
Figure 3 – Measurement of angular displacement . 50
Figure 4 – Greatest thickness of the insulator . 51
Figure B.1 – Acceptance flow chart for mechanical or electromechanical type tests . 54
Figure B.2 – Acceptance flow chart for mechanical or electromechanical sample tests . 55
Figure B.3 – Flow chart of the comparison of type and sample tests . 56
Figure C.1 – Example of thickness criteria based on current experience . 60
Figure C.2 – Example of adherence test criteria . 61
Figure D.1 – Example of equipment for impact testing . 62
Table 1 – Cross-reference table for pin insulators . 17
Table 2 – Cross-reference table for line post insulators . 19
Table 3 – Cross-reference table for string insulator units – cap and pin . 21
Table 4 – Cross-reference table for string insulator units – long rod . 23
Table 5 – Sample sizes for sample tests . 25
Table 6 – Acceptance criteria for impact test. 44
Table 7 – Coefficients for sample tests (line post insulators) . 46
Table 8 – Coefficients for sample tests (string insulator units) . 48
Table A.1 – Values for constants a, b and c . 52
Table A.2 – Values for constants a, b and c (re-test) . 53
Table B.1 – Examples for mechanical and electromechanical sample tests . 57
Table B.2 – Blank form for calculation for mechanical and electromechanical
sample tests . 58
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– 6 – IEC 60383-1:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATORS FOR OVERHEAD LINES
WITH A NOMINAL VOLTAGE ABOVE 1 000 V –
Part 1: Ceramic or glass insulator units for AC systems –
Definitions, test methods and acceptance criteria
FOREWORD
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