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Reference EN 61620:1999
Title Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
Project Number 12329
Abstract/Scope Describes a method for simultaneous measurement of conductance G and capacitance C enabling the calculation of the dielectric dissipation factor tan delta of insulating liquides. Method applies to both unused insulating liquids and insulating liquids in service in transformers and in other electrical equipment.


Current Stage code 6060
Current Stage code date 1999-01-20
Current Stage code deadline 1999-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 10
Reference Document IEC 61620:1998 (EQV)
ICS 17.220.99 - Other standards related to electricity and magnetism
29.040.01 - Insulating fluids in general
Keywords Insulating liquid; Dielectric dissipation factor; Conductance; Capacitance
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1999-01-20 1999-10-01 export to doc file  EN
5099 1999-01-01 1999-02-01  
5062 1998-11-12 1999-01-01  
5020 1998-08-07 1998-10-15  
1090 1998-08-03 1998-08-07  

Implementation Dates

date of Ratification (DOR) (1) 1999-01-01
date of Availability (DAV) (2) 1999-01-20
date of Announcement (DOA) (3) 1999-04-01
date of Publication (DOP) (4) 1999-10-01
date of Withdrawal (DOW) (5) 2001-10-01


Superseded by  
Normative reference (6) ISO 5725-1:1994
ISO 5725-2:1994
ISO 5725-3:1994
ISO 5725-4:1994
IEC 60247:1978
IEC 60475:1974

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of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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