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IEC 60120

Ball and socket couplings of string insulator units – Dimensions

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Organization: IEC
Publication Date: 1 July 2020
Status: active
Page Count: 78
ICS Code (Power transmission and distribution lines): 29.240.20
ICS Code (Insulators): 29.080.10
scope:

The object of this international standard is to define the dimensions of a series of standard ball and socket couplings using the standard locking devices (see IEC 60372) in order to permit the assembly of insulators or metal fittings supplied by different manufacturers.

This document applies to string insulator units of the cap and pin and long rod types and their associated metal fittings.

For the pin ball and the socket, dimensions apply to the finished product after any surface treatment.

Extreme positions of the pin ball in the socket are given in Annex A.

Typical examples of gauges for checking the dimensions of pin balls and sockets are given in Annex B.

NOTE Only the dimensions necessary for assembly are dealt with in this standard. Properties of material and working loads are not specified. The co-ordination of dimensions with strength classes is specified in IEC 60305 and IEC 60433.

Document History

IEC 60120
July 1, 2020
Ball and socket couplings of string insulator units – Dimensions
The object of this international standard is to define the dimensions of a series of standard ball and socket couplings using the standard locking devices (see IEC 60372) in order to permit the...
IEC 60120
January 1, 1984
Dimensions of Ball and Socket Couplings of String Insulator Units
This Standard applies to string insulator units of the cap and pin and long rod types and their associated metal fittings.

References

This document references:
IEC 60372 - Locking devices for ball and socket couplings of string insulator units – Dimensions and tests
Published by IEC on July 1, 2020
This international standard is applicable to locking devices used with ball and socket couplings of string insulator units and used with the corresponding metal fittings standardized in IEC 60120,...
This document references:
IEC 60050-471 - International Electrotechnical Vocabulary Part 471: Insulators
Published by IEC on May 1, 2007
This part of IEC 60050 gives the general terminology used in insulators. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
This document references:
IEC 60305 - Insulators for Overhead Lines with a Nominal Voltage Above 1 000 V - Ceramic or Glass Insulator Units for A.C. Systems - Characteristics of Insulator Units of the Cap and Pin Type
Published by IEC on December 1, 1995
This International Standard applies to string insulator units of the cap and pin type with insulating parts of ceramic material or glass, intended for a.c. overhead lines with a normal voltage...
This document references:
IEC 60372 - Locking devices for ball and socket couplings of string insulator units – Dimensions and tests
Published by IEC on July 1, 2020
This international standard is applicable to locking devices used with ball and socket couplings of string insulator units and used with the corresponding metal fittings standardized in IEC 60120,...
This document references:
IEC 60383-1 - Insulators for Overhead Lines with a Nominal Voltage Above 1 000 V Part 1: Ceramic or Glass Insulator Units for A.C. Systems - Definitions, Test Methods and Acceptance Criteria
Published by IEC on April 1, 1993
Scope and object This part of IEC 383 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...
This document references:
IEC 60433 - 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
Published by IEC on August 1, 1998
This International Standard is applicable to string insulator units of the long rod type with insulating parts of ceramic material intended for use in a.c. overhead power lines with a nominal voltage...
This document is referenced by:
BS EN 61466-1 - TC - Tracked Changes (Redline) - Composite string insulator units for overhead lines with a nominal voltage greater that 1 000 V Part 1: Standard strength classes and end fittings
Published by BSI on February 27, 2020
This part of IEC 61466 is applicable to composite string insulator units for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. It also applies...
This document is referenced by:
BS EN 60433 - 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
Published by BSI on February 15, 1999
Also applicable to insulators of similar design used in substations.
This document is referenced by:
BS EN 60305 - 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
Published by BSI on August 15, 1996
Specifies values for mechanical characteristics and main dimensions of insulator units intended for use on overhead lines (or substations) in clean and polluted areas. Electrical characteristics are...
This document is referenced by:
EN IEC 60471 - Clevis and tongue couplings of string insulator units - Dimensions
Published by CENELEC on September 1, 2020
This international standard applies to string insulator units of the cap and pin type and also of the long rod type as well as the fittings used with such insulators. The object of this document is...
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