BS 4999-111:1987 - General requirements for rotating electrical machines. Specification for built-in thermal protection for electric motors rated at 660 volts a.c. and below

BS 4999-111:1987

General requirements for rotating electrical machines. Specification for built-in thermal protection for electric motors rated at 660 volts a.c. and below

Status : Superseded, Withdrawn   Published : February 1987 Replaced By : BS EN 60034-11:2004

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Classifies types of protection, specifies winding temperatures for steady overload and stalled conditions. Recommends thermistor reference temperatures. Characteristics for thermostats, thermistors and thermistor control units with appropriate tests. Thermistors are of positive temperature coefficient. An appendix gives typical characteristic curve.




Standard NumberBS 4999-111:1987
TitleGeneral requirements for rotating electrical machines. Specification for built-in thermal protection for electric motors rated at 660 volts a.c. and below
StatusSuperseded, Withdrawn
Publication Date27 February 1987
Withdrawn Date09 February 2005
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS EN 60034-11:2004
ReplacesBS 4999-72:1972
DescriptorsInduction motors, Asynchronous motors, Electric motors, Rotating electric machines, Electric machines, Squirrel-cage motors, Stators, Windings, Electric current control, Electric conductors, Thermal protection, Temperature control, Thermostats, Thermistors, Electric terminals, Heating tests, High-voltage tests, Type testing, Electrical testing, Electrical resistance, Performance testing, Breaking capacity, Making capacity, Ratings, Marking, Thermal-cycling tests
ICS29.160.30
Title in FrenchRègles générales pour les machines électriques tournantes. Protection thermique incorporée pour moteurs électriques de tension nominale inférieure ou égale à 660 V en courant alternatif. Spécifications
Title in GermanAllgemeine Anforderungen an umlaufende elektrische Maschinen. Eingebauter Waermeschutz fuer Elektromotoren mit Nennspannung bis 660 V Wechselstrom
CommitteePEL/2
ISBN0 580 15780 6
PublisherBSI
FormatA4
DeliveryNo
Pages12
File Size356.3 KB
Price£64.00


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