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BS EN IEC 60383-1:2023

BS EN IEC 60383-1:2023

$198.66

Insulators for overhead lines with a nominal voltage above 1000 V – Ceramic or glass insulator units for a.c. systems. Definitions, test methods and acceptance criteria

Published By Publication Date Number of Pages
BSI 2023 70
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This part of IEC 60383 applies to insulators of ceramic material or glass for use on a.c. 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 d.c. overhead electric traction lines. This part 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. Tests on insulator strings and insulator sets (for example, wet switching impulse voltage) are dealt with in part 2 of IEC 60383. The object of this part 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 part does not include requirements dealing with the choice of insulators for specific operating conditions. Specific requirements on the use of coatings on ceramic or glass insulators are described in the informative Annex C. NOTE A guide for the choice of insulators under polluted conditions has been published, see IEC 60815-1 and -2. Numerical values for insulator characteristics are specified in IEC 60305, IEC 60433 and IEC 60720.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
8 English
CONTENTS
12 FOREWORD
14 INTRODUCTION
15 1 Scope
2 Normative references
16 3 Terms and definitions
19 4 Classification, types of insulators and insulating materials
4.1 Insulator classes
20 4.2 Insulator types
4.3 Insulating materials
5 Identification of insulators
6 Classification of tests
6.1 Type tests
21 6.2 Sample tests
6.3 Routine tests
7 Cross-reference tables for tests to be performed
7.1 Pin insulators
23 7.2 Line post insulators
Tables
Table 1 – Cross-reference table for pin insulators
25 7.3 String insulator units
7.3.1 General
Table 2 – Cross-reference table for line post insulators
26 7.3.2 Specified type tests on string insulator units
27 Table 3 – Cross-reference table for string insulator units – cap and pin
29 Table 4 – Cross-reference table for string insulator units – long rod
30 7.4 Insulators for overhead electric traction lines
8 Procedures for type and sample tests
8.1 Insulator selection for type tests
8.2 Sampling rules and procedures for sample tests
31 8.3 Re-test procedure for sample tests
9 General requirements for electrical tests
Table 5 – Sample sizes for sample tests
32 10 Artificial rain parameters for wet tests
11 Mounting arrangements for electrical tests
12 Dry lightning impulse voltage tests
12.1 General
12.2 Test procedure
12.3 Acceptance criteria
33 13 Wet power frequency withstand voltage tests
13.1 Test procedure
13.2 Acceptance criteria
14 RIV test
14.1 Test procedure
34 14.2 Acceptance criteria
15 Puncture withstand test
15.1 General
15.2 Impulse puncture testing in air
35 15.3 Power frequency puncture withstand test
16 Routine electrical test
36 17 Verification of the dimensions
18 Electromechanical failing load test
18.1 Test procedure
37 18.2 Acceptance criteria
19 Mechanical failing load test
19.1 Test procedure for pin and line post insulators
19.2 Test procedure for string insulator units
19.3 Acceptance criteria for pin insulators
19.4 Acceptance criteria for string insulator units and line post insulators
38 20 Thermal-mechanical performance test
20.1 Test procedure
39 20.2 Acceptance criteria
21 Residual strength test
21.1 General
21.2 Previous tests
21.3 Preparation of the test pieces
40 21.4 Test procedure
21.5 Test results
21.6 Acceptance criteria
22 Verification of the axial, radial and angular displacements
22.1 Test procedure
41 22.2 Acceptance criteria
42 23 Verification of the locking system
23.1 General
23.2 Conformity of the locking device
23.3 Verification of locking
23.4 Position of the locking device
23.5 Procedure for the operation test
43 23.6 Acceptance criteria for the operation test
24 Temperature cycle test
24.1 Test procedure for ceramic or toughened glass material
44 24.2 Test procedure for of annealed glass
24.3 Special test procedure for insulators with thick sections or very large insulators
24.4 Complementary specifications
24.5 Acceptance criteria
45 25 Thermal shock test
25.1 Sample test
25.1.1 Test procedure
25.1.2 Acceptance criteria
25.2 Routine thermal shock test
25.2.1 Test procedure
25.2.2 Acceptance criteria
26 Porosity test
26.1 Test procedure
26.2 Acceptance criteria
46 27 Galvanizing test
27.1 General
27.2 Test procedure
27.2.1 General
27.2.2 Appearance
27.2.3 Determination of the coating mass by the magnetic test method
27.3 Acceptance criteria
27.3.1 Acceptance criteria for the appearance test
47 27.3.2 Acceptance criteria for the value of coating mass
28 Zinc sleeve test (if applicable)
28.1 General requirements concerning the zinc sleeve
28.2 Type test procedure
48 28.3 Sample test procedure
29 Routine visual inspection
29.1 General
29.2 Insulators with ceramic insulating parts
49 29.3 Insulators with glass insulating parts
50 30 Impact test
30.1 Test procedure
30.2 Acceptance criteria
31 Routine mechanical test
31.1 Routine mechanical test on line post insulators
Table 6 – Acceptance criteria for impact test
51 31.2 Routine mechanical test on string insulator units
32 Mounting arrangements for tests on pin insulators
32.1 Standard mounting arrangement for electrical tests
52 32.2 Mounting arrangements for electrical tests reproducing service conditions
32.3 Mounting arrangement for the mechanical failing load test
33 Coefficients for statistical analysis of the test results on line post Insulators
33.1 Coefficient for type tests
33.2 Coefficients for sample tests
34 Mounting arrangements for tests on line post insulators
34.1 Standard mounting arrangement for electrical tests
Table 7 – Coefficients for sample tests (line post insulators)
53 34.2 Mounting arrangements for electrical tests reproducing service conditions
34.3 Mounting arrangement for the mechanical failing load test
35 Coefficients for statistical analysis of the test results on string insulator units
35.1 Coefficient for type tests
54 35.2 Coefficients for sample tests
36 Mounting arrangements for electrical tests on string insulator units
37 Mounting arrangements for electrical tests on Insulators for overhead electric traction lines
37.1 Standard mounting arrangement
Table 8 – Coefficients for sample tests (string insulator units)
55 37.2 Mounting arrangement representing service conditions
Figure 1 – Schematic representation of the thermal-mechanical performance test
56 Figures
Figure 2 – Measurement of axial and radial displacements
Figure 3 – Measurement of angular displacement
57 Figure 4 – Greatest thickness of the insulator
58 Annex A (informative) Method of comparison of the results of electromechanical or mechanical type and sample tests
Table A.1 – Values for constants a, b and c
59 Table A.2 – Values for constants a, b and c (re-test)
60 Annex B (informative) Illustration of the mechanical and electromechanical test acceptance procedure for string insulator units and line post insulators
B.1 Flow charts
Figure B.1 – Acceptance flow chart for mechanical or electromechanical type tests
61 Figure B.2 – Acceptance flow chart for mechanical or electromechanical sample tests
62 B.2 Calculated examples of acceptance and rejection
Figure B.3 – Flow chart of the comparison of type and sample tests
63 Table B.1 – Examples for mechanical and electromechanical sample tests
64 Table B.2 – Blank form for calculation for mechanicaland electromechanical sample tests
65 Annex C (informative) Coatings on ceramic or glass insulators
C.1 General
C.2 Material fingerprinting and ageing performance
C.3 Type testing
66 C.4 Sample testing
C.5 Routine testing
C.6 Pollution performance
C.7 Acceptance criteria
Figure C.1 – Example of thickness criteria based on current experience
67 Figure C.2 – Example of adherence test criteria
68 Annex D (informative) Impact test
Figure D.1 – Example of equipment for impact testing

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BS EN IEC 60383-1:2023
$198.66