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Project

Reference EN 60947-8:2003/A1:2006
Title Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
Project Number 17042
Abstract/Scope Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to EN 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by EN 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its associated control unit (designated Mark A detector and Mark A control unit), when they are used in thermal protection systems. NOTE It is not possible to specify all the requirements for the operating characteristics of a control unit, as they are dependent on some aspects of the thermal detectors. Some aspects of the requirements of the thermal protector system can only be specified when account is taken of the characteristics of the rotating machine to be protected and the method of installation of the detector within the machine. For these reasons, for each characteristic it is necessary to specify who is responsible for stating the required values and who is responsible for compliance with the requirement and for carrying out any confirmatory test.
Status
Published

Status

Current Stage code 6060
Current Stage code date 2006-11-17
Current Stage code deadline 2007-07-01
Deadline date for vote  

Legal

Directive(s) EMC (2004/108/EC), LVD (2006/95/EC)
Mandate(s) M/404
Order Voucher  

Details

IEC Technical Body IEC/SC 17B
Reference Document IEC 60947-8:2003/A1:2006 (EQV)
ICS 29.130.20 - Low voltage switchgear and controlgear
Keywords Switchgear; Controlgear; LV; Control unit; Thermal protection
Note  
A-Deviation(s)  
Special National Condition(s)  

Environment

Clause
Categories - Aspects
Product Life Cycle
Information

History

Stage
Date
Deadline Date
Documents
6060 2006-11-17 2007-07-01 export to doc file  EN  FR  DE
5099 2006-10-01 2006-12-01  
5060 2006-09-04 2006-09-18 export to doc file  EN
5020 2006-06-16 2006-09-01  
4099 2006-05-12 2006-07-31  
4020 2005-09-16 2006-02-17  
3099 2005-09-13 2005-09-16  

Implementation Dates

date of Ratification (DOR) (1) 2006-10-01
date of Availability (DAV) (2) 2006-11-17
date of Announcement (DOA) (3) 2007-01-01
date of Publication (DOP) (4) 2007-07-01
date of Withdrawal (DOW) (5) 2009-10-01

Relations


(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.