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Project

Reference EN 61660-1:1997
Title Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 1: Calculation of short-circuit currents
Project Number 8238
Abstract/Scope Describes method for calculating short-circuit currents in d.c. auxilliary systems in power plants and substations, which can be equipped with the following equipment, acting as short-circuit current sources: - rectifiers in three-phase a.c. bridge connection for 50 Hz; - stationary lead-acid batteries; - smoothing capacitors; - d.c. motors with independent excitation Provides a generally applicable method of calculation which produces results of sufficient accuracy on the conservative side.
Status
Published

Status

Current Stage code 6060
Current Stage code date 1997-07-24
Current Stage code deadline 1998-04-01
Deadline date for vote  

Legal

Directive(s)  
Mandate(s)  
Order Voucher  

Details

IEC Technical Body IEC/TC 73
Reference Document IEC 61660-1:1997 (EQV)
ICS 29.240.01 - Power transmission and distribution networks in general
Keywords Short-circuit current; DC auxiliary installation; Power plant
Note EN following parallel vote
A-Deviation(s)  
Special National Condition(s)  

Environment

Clause
Categories - Aspects
Product Life Cycle
Information

History

Stage
Date
Deadline Date
Documents
6060 1997-07-24 1998-04-01 export to doc file  EN
5099 1997-07-01 1997-08-01  
5062 1997-04-28 1997-07-01  
5020 1996-11-29 1997-02-15  
1090 1996-11-25 1997-03-25  

Implementation Dates

date of Ratification (DOR) (1) 1997-07-01
date of Availability (DAV) (2) 1997-07-24
date of Announcement (DOA) (3) 1997-10-01
date of Publication (DOP) (4) 1998-04-01
date of Withdrawal (DOW) (5) 1998-04-01

Relations

Supersedes  
Superseded by  
Normative reference (6) HD 472 S1:1989
corr. February 2002
corr.
A1:1995
IEC 60050-151:1978
IEC 60050-441:1984
EN 60896-1:1991
A2:1992
:
HD 533 S1:1991
EN 61660-2:1997

(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.