International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 60433:1998
Title 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
Project Number 6745
Abstract/Scope Prescribes specified values for the electrical and mechanical characteristics and for the principal dimensions of string insulator units of the long rod type with insulating parts of ceramic material intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. It is also applicable to insulators of similar design, used in substations. Applies also to string insulator units: -of the long rod type either with a clevis at both ends for coupling with a tongue, or with a socket at both ends for coupling with a pin ball -with external metal fittings -for use on overhead lines situated in slightly polluted areas, and the creepage distances given in Tables I and II have been established accordingly -and insulators of similar design, used in substations. This standard may be regarded as a provisional standard for insulators for d.c. overhead lines. Note -For general definitions and methods of tests see EN 60383. -For dimensions of clevis and tongue couplings of string insulator units, see IEC 60471. -For dimensions of ball and socket couplings of string insulator units, see EN 60120.


Current Stage code 6060
Current Stage code date 1998-10-22
Current Stage code deadline 1999-07-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 36B
Reference Document IEC 60433:1998 (EQV)
ICS 29.080.10 - Insulators
Keywords Insulator; Overhead line; Ceramic; AC; Long rod type
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1998-10-22 1999-07-01 export to doc file  EN
5099 1998-10-01 1998-11-01  
5062 1998-08-26 1998-10-01  
5020 1998-05-08 1998-07-15  
1090 1995-04-07 1995-08-07  

Implementation Dates

date of Ratification (DOR) (1) 1998-10-01
date of Availability (DAV) (2) 1998-10-22
date of Announcement (DOA) (3) 1999-01-01
date of Publication (DOP) (4) 1999-07-01
date of Withdrawal (DOW) (5) 2001-07-01


Superseded by  
Normative reference (6) EN 60071-1:1995
HD 474 S1:1986
EN 60383-1:1996
IEC 60471:1977
EN 60672-1:1995
EN 60672-3:1997
IEC/TR 60815:1986

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.