IEC 60383-1:1993

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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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

Available format(s): Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

Superseded date: 07-07-2023

Language(s): English - French, English, French, Spanish, Castilian

Published date: 26-04-1993

Publisher: International Electrotechnical Committee

Table of Contents - (Show below) - (Hide below)

FOREWORD
INTRODUCTION
Section 1. General
1 Scope and object
2 Normative references
3 Definitions
Section 2. Insulators
4 Classification, types of insulators and
    insulating materials
5 Identification of insulators
Section 3. Classification of tests, sampling rules
and procedures
6 Classification of tests
7 Quality assurance
8 Procedure for type and sample tests
Section 4. Test procedures for electrical tests
9 General requirements for high voltage tests
10 Standard atmospheric conditions and correction
    factors for electrical tests
11 Artificial rain parameters for wet tests
12 Mounting arrangements for electrical tests
13 Lightning impulse voltage tests (type tests)
14 Wet power-frequency voltage tests (type test)
15 Puncture withstand test (sample test, for class B
    insulators only)
16 Routine electrical test (only on class B insulators
    of ceramic material or annealed glass)
Section 5. Test procedures for mechanical and other
tests
17 Verification of the dimensions (type and sample test)
18 Electromechanical failing load test (type and sample
    test)
19 Mechanical failing load test (type and sample test)
20 Thermal-mechanical performance test (type test)
21 Verification of the axial, radial and angular
    displacements (sample test)
22 Verification of the locking system (sample test)
23 Temperature cycle test (sample test)
24 Thermal shock test (sample test)
25 Porosity test (sample test)
26 Galvanizing test (sample test)
27 Routine visual inspection
28 Routine mechanical test
Section 6. Pin insulators
29 Mounting arrangements for tests on pin insulators
Section 7. Line post insulators
30 Coefficients for statistical analysis of the
    test results on line post insulators
31 Mounting arrangements for tests on the line
    post indicators
Section 8. String insulator units
32 Prescriptions concerning type tests on string
    insulators
33 Coefficients for statistical analysis of the test
    results on string insulators
34 Mounting arrangements for electrical tests
    on string insulator units
Section 9. Insulators for overhead electric traction
lines
35 Mounting arrangements for electrical tests on
    string insulator units
Figures
Annexes
A Method of comparison of the results of
    electromechanical or mechanical type and sample tests
B Illustration of the mechanical and electromechanical
    test acceptance procedure for string insulator
    units and line post insulators
C List of normative documents given for information

Abstract - (Show below) - (Hide below)

Applies to insulators of ceramic material or glass for use on a.c. overhead power lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. Also applies to insulators for use on d.c. overhead electric traction lines and applies to string insulator units, rigid overhead line insulators and to insulators of similar design when used in substations.

General Product Information - (Show below) - (Hide below)

Committee	TC 36
Development Note	Supersedes IEC 60383 (03/2001) Stability Date: 2019. (09/2017)
Document Type	Standard
ISBN
Pages
Published
Publisher	International Electrotechnical Committee
Status	Superseded
Superseded By	IEC 60383-1:2023
Supersedes	IEC 60383:1983

International Equivalents – Equivalent Standard(s) & Relationship - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
NF EN 60383-1 : 97 AMD 11 2001	Identical
UNE-EN 60383-1:1997	Identical
NEN 10383-1 : 1997	Identical
NEN EN IEC 60383-1 : 1997 AMD 11 1999	Identical
I.S. EN 60383-1:1999	Identical
PN EN 60383-1 : 2005	Identical
SANS 60383-1 : 1ED 1993(R2012)	Identical
AS/NZS 2947.1:1999	Identical
SN EN 60383-1 : 1996 AMD 11 1999	Identical
VDE 0446-1 : 97 COR 1 2001	Identical
DIN EN 60383-1 : 97 COR 1 2001	Identical
BS EN 60383-1:1998	Identical
EN 60383-1:1996/A11:1999	Identical
DS EN 60383-1 : 1997 AMD 11 2004	Identical
SANS 60383-1:1993(R2022)	Identical

Standards Referenced By This Book - (Show below) - (Hide below)

BS EN 60433:1999	Insulators for overhead lines with a nominal voltage above 1 kV. Ceramic insulators with a.c. systems. Characteristics of insulator units of the long rod type
UNE-EN 50124-1:2017	Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
CEI EN 61109 : 2009	INSULATORS FOR OVERHEAD LINES - COMPOSITE SUSPENSION AND TENSION INSULATORS FOR A/C/ SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
CEI EN 60437 : 1998	RADIO INTERFERENCE TEST ON HIGH-VOLTAGE INSULATORS
DIN EN 60695-2-1-1 : 1997	PRUEFUNGEN ZUR BEURTEILUNG DER BRANDGEFAHR - PRUEFVERFAHREN - PRUEFUNGEN MIT DEM GLUEHDRAHT AM ENDERZEUGNIS UND ANLEITUNG
CEI EN 61952 : 2009	INSULATORS FOR OVERHEAD LINES - COMPOSITE LINE POST INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
I.S. EN 60437:1999	RADIO INTERFERENCE TEST ON HIGH-VOLTAGE INSULATORS
BS EN 61109:2008	Insulators for overhead lines. Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1000 V. Definitions, test methods and acceptance criteria
BS EN 60305:1996	Insulators for overhead lines with a nominal voltage above 1 kV. Ceramic or glass insulator units for a.c. systems. Characteristics of insulator units of the cap and pin type
I.S. EN 50341-2-4:2016	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 2-4: NATIONAL NORMATIVE ASPECTS (NNA) FOR GERMANY (BASED ON EN 50341-1:2012)
15/30298489 DC : 0	BS EN 50124-1 - RAILWAY APPLICATIONS - INSULATION COORDINATION - PART 1: BASIC REQUIREMENTS - CLEARANCES AND CREEPAGE DISTANCES FOR ALL ELECTRICAL AND ELECTRONIC EQUIPMENT
CSA C1325 : 1999 : R2016	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC OR GLASS INSULATOR UNITS FOR D.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
I.S. EN 61325:1997	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC OR GLASS INSULATOR UNITS FOR D.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
BS EN 50341-1:2012	Overhead electrical lines exceeding AC 1 kV General requirements. Common specifications
IEC 62497-1:2010+AMD1:2013 CSV	Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electricaland electronic equipment
EN 61952:2008	Insulators for overhead lines - Composite line post insulators for A.C. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
NF EN 61109 : 2009	INSULATORS FOR OVERHEAD LINES - COMPOSITE SUSPENSION AND TENSION INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
BS EN 60143-2:2013	Series capacitors for power systems Protective equipment for series capacitor banks
EN 60437:1997	Radio interference test on high-voltage insulators
BS EN 50341-2-4:2016	Overhead electrical lines exceeding AC 1 kV National Normative Aspects (NNA) for Germany (based on EN 50341-1:2012)
04/30108887 DC : 0	IEC 61467 ED.2 - INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - AC POWER ARC TESTS
11/30215604 DC : 0	BS IEC 60913 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
BS EN 61467:2008	Insulators for overhead lines. Insulator strings and sets for lines with a nominal voltage greater than 1000 V. AC power arc tests
14/30311815 DC : 0	BS EN 60305 - INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V CERAMIC OR GLASS INSULATOR UNITS FOR A A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE CAP AND PIN TYPE
PREN 50124-1 : DRAFT 2015	RAILWAY APPLICATIONS - INSULATION COORDINATION - PART 1: BASIC REQUIREMENTS - CLEARANCES AND CREEPAGE DISTANCES FOR ALL ELECTRICAL AND ELECTRONIC EQUIPMENT
CEI EN 61325 : 1998	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V CERAMIC OR GLASS INSULATOR UNITS FOR D.C. SYSTEMS DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
EN 50124-1:2017	Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
CEI EN 60433 : 1999	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV CERAMIC INSULATORS FOR A.C. SYSTEMS CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
I.S. EN 50341-1:2012	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
EN 60305:1996	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
EN 50341-1:2012	Overhead electrical lines exceeding AC 1 kV - Part 1: General requirements - Common specifications
I.S. EN 50124-1:2017	RAILWAY APPLICATIONS - INSULATION COORDINATION - PART 1: BASIC REQUIREMENTS - CLEARANCES AND CREEPAGE DISTANCES FOR ALL ELECTRICAL AND ELECTRONIC EQUIPMENT
IEC 60433:1998	Insulators for overhead lines with a nominal voltage above 1 000 V - Ceramic insulators for a.c. systems - Characteristics of insulator units of the long rod type
EN 60433:1998	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic insulators for a.c. systems - Characteristics of insulator units of the long rod type
VDE 0446-5 : 1996	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC OR GLASS INSULATOR UNITS FOR DC SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
ANSI C29.11 : 2012	COMPOSITE SUSPENSION INSULATORS FOR OVERHEARD TRANSMISSION LINES - TESTS
VDE 0446-4 : 1995	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - PART 2: INSULATOR STRINGS AND INSULATOR SETS FOR A.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
DIN EN 60383-2 : 1995	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - PART 2: INSULATOR STRINGS AND INSULATOR SETS FOR A.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
VDE 0446-7 : 1999	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC INSULATORS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
VDE 0471-2-1-1 : 1997	FIRE HAZARD TESTING - PART 2: TEST METHODS; SECTION 1/SHEET 1: GLOW-WIRE END-PRODUCT TEST AND GUIDANCE
DIN EN 61325 : 1996	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC OR GLASS INSULATOR UNITS FOR D.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
DIN EN 60433 : 1999	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC INSULATORS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
BS 7803:1995	Guide to insulators of ceramic material or glass for overhead-lines with a nominal voltage greater then 1000 V, puncture testing
BS EN 60437:1998	Radio interference test on high-voltage insulators
NF EN 61211 : 2005	INSULATORS OF CERAMIC MATERIAL OR GLASS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V - IMPULSE PUNCTURE TESTING IN AIR
BS IEC 61467:1997	Insulators for overhead lines with a nominal voltage above 1000 V. AC power arc tests on insulator sets
IEEE 1861-2014	IEEE Guide for On-Site Acceptance Tests of Electrical Equipment and System Commissioning of 1000 kV AC and Above
BS EN 61325:1996	Insulators for overhead lines with a nominal voltage above 1000 V. Ceramic or glass insulator units for d.c systems. Definitions, test methods and acceptance criteria
BS EN 60383-2:1995	Insulators for overhead lines with a nominal voltage above 1000 V Insulator strings and insulator sets for a.c. systems. Definitions, test methods and acceptance criteria
CEI EN 60143-2 : 2014	SERIES CAPACITORS FOR POWER SYSTEMS - PART 2: PROTECTIVE EQUIPMENT FOR SERIES CAPACITOR BANKS
CEI EN 61467 : 2009	INSULATORS FOR OVERHEAD LINES - INSULATOR STRINGS AND SETS FOR LINES WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - AC POWER ARC TESTS
I.S. EN 61211:2005	INSULATORS OF CERAMIC MATERIAL OR GLASS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - IMPULSE PUNCTURE TESTING IN AIR
CEI EN 50341-1 : 2013	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
NF EN 61952 : 2008	INSULATORS FOR OVERHEAD LINES - COMPOSITE LINE POST INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
IEC 60305:1995	Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
IEC 60437:1997	Radio interference test on high-voltage insulators
IEC 61952:2008	Insulators for overhead lines - Composite line post insulators for A.C. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
DIN 40680-1:1983-08	CERAMIC COMPONENTS FOR ELECTRICAL PURPOSES - ADMISSIBLE TOLERANCES
14/30311824 DC : 0	BS EN 60433 - INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC INSULATORS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
12/30260570 DC : 0	BS EN 50341-1 - OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
02/206403 DC : DRAFT MAY 2002	IEC 62231. ED.1.0 - COMPOSITE STATION POST INSULATORS FOR SUBSTATIONS WITH A.C. VOLTAGES GREATER THAN 1000 V UPTO 245 KV - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
IEC TS 62896:2015	Hybrid insulators for a.c. and d.c. for high-voltage applications - Definitions, test methods and acceptance criteria
EN 50341-2-4:2016	Overhead electrical lines exceeding AC 1 kV - Part 2-4: National Normative Aspects (NNA) for Germany (based on EN 50341-1:2012)
I.S. EN 60143-2:2013	SERIES CAPACITORS FOR POWER SYSTEMS - PART 2: PROTECTIVE EQUIPMENT FOR SERIES CAPACITOR BANKS (IEC 60143-2:2012 (EQV))
04/30111295 DC : 0
PD IEC/TS 62896:2015	Hybrid insulators for a.c. and d.c. high-voltage applications. Definitions, test methods and acceptance criteria
CEI EN 60305 : 1997	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV CERAMIC OR GLASS INSULATOR UNITS FOR A.C. SYSTEMS CHARACTERISTICS OF INSULATOR UNITS OF THE CAP AND PIN TYPE
BS EN 61952:2008	Insulators for overhead lines. Composite line post insulators for A.C. systems with a nominal voltage greater than 1000 V. Definitions, test methods and acceptance criteria
BS EN 61211:2005	Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1000 V. Impulse puncture testing in air
NF EN 60437 : 2000	RADIO INTERFERENCE TEST ON HIGH-VOLTAGE INSULATORS
I.S. EN 61952:2008	INSULATORS FOR OVERHEAD LINES - COMPOSITE LINE POST INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
EN 60383-2:1995	Insulators for overhead lines with a nominal voltage above 1 kV - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
I.S. EN 61109:2008	INSULATORS FOR OVERHEAD LINES - COMPOSITE SUSPENSION AND TENSION INSULATORS FOR A.C. SYSTEMS WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
IEC 61325:1995	Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria
IEC 61211:2004	Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1 000 V - Impulse puncture testing in air
IEC 61109:2008	Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
IEC 60143-2:2012	Series capacitors for power systems - Part 2: Protective equipment for series capacitor banks
IEC 61467:2008	Insulators for overhead lines - Insulator strings and sets for lines with a nominal voltage greater than 1 000 V - AC power arc tests
EN 61109:2008	Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
VDE 0446-6 : 1996	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC OR GLASS INSULATOR UNITS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE CAP AND PIN TYPE
DIN EN 60305 : 1996	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC OR GLASS INSULATOR UNITS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE CAP AND PIN TYPE
PREN 50341-1 : DRAFT 2012	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
11/30245197 DC : 0	BS EN 60143-2 - SERIES CAPACITORS FOR POWER SYSTEMS - PART 2: PROTECTIVE EQUIPMENTS FOR SERIES CAPACITOR BANKS
BS EN 50124-1:2017	Railway applications. Insulation coordination Basic requirements. Clearances and creepage distances for all electrical and electronic equipment
CSA C411.1 : 2016	AC SUSPENSION INSULATORS
CSA C1325 : 1999 : R2011	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1000 V - CERAMIC OR GLASS INSULATOR UNITS FOR D.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
I.S. EN 61467:2008	INSULATORS FOR OVERHEAD LINES - INSULATOR STRINGS AND SETS FOR LINES WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - AC POWER ARC TESTS
NF EN 60433 : 2000	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC INSULATORS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
I.S. EN 60305:1999	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC OR GLASS INSULATOR UNITS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE CAP AND PIN TYPE
I.S. EN 60433:1998	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC INSULATORS FOR A.C. SYSTEMS - CHARACTERISTICS OF INSULATOR UNITS OF THE LONG ROD TYPE
EN 61467:2008	Insulators for overhead lines - Insulator strings and sets for lines with a nominal voltage greater than 1 000 V - AC power arc tests
EN 61325:1995	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria
EN 60143-2:2013	Series capacitors for power systems - Part 2: Protective equipment for series capacitor banks
EN 61211:2005	Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1 000 V - Impulse puncture testing in air

Standards Referencing This Book - (Show below) - (Hide below)

IEC 60305:1995	Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
IEC 60050-471:2007	International Electrotechnical Vocabulary (IEV) - Part 471: Insulators
ISO 1463:2003	Metallic and oxide coatings Measurement of coating thickness Microscopical method
ISO 1461:2009	Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
IEC 60720:1981	Characteristics of line post insulators
ISO 1459:1973	Metallic coatings — Protection against corrosion by hot dip galvanizing — Guiding principles
IEC 60372:1984	Locking devices for ball and socket couplings of string insulator units - Dimensions and tests
ISO 2178:2016	Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method
ISO 1460:1992	Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per unit area
IEC 60433:1998	Insulators for overhead lines with a nominal voltage above 1 000 V - Ceramic insulators for a.c. systems - Characteristics of insulator units of the long rod type
IEC 60060-1:2010	High-voltage test techniques - Part 1: General definitions and test requirements
IEC 60120:1984	Dimensions of ball and socket couplings of string insulator units
ISO 2064:1996	Metallic and other inorganic coatings — Definitions and conventions concerning the measurement of thickness

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