u RATING OF ELECTRICAL MACHINERY 



NA ME-PLA TES 

 Information to be Stated on the Name-plates 



BELGIUM. Service recognized (intermittent, momentary, for 

 hours, or continuous). The rated values of the power, the pressure, the 

 current and the angular speed. 



FRANCE. The power for which the machine has been sold. 



It is expressed thus: For generators, in kilowatts at the 

 for motors, in kilowatts, or horse power of 75 kg-m. per second, available 

 at the shaft. 



Additional information to be stated: For continuous working, the 

 rated values of the speed in revolutions per minute, the pressure, and 

 the current; for variable working, the limits of pressure and current; 

 for intermittent working (traveller, crane, lift, etc.) the power for a period 

 of one hour, mentioning " intermittent working." 



GERMANY. The power for generators to be stated in kilo\\. 

 Mechanical power to be stated in kilowatts or in horse power 



In addition, the name-plate on which the power is stamped, or a special 

 name-plate, must indicate the rated value of the number of revolutions, 

 the pressure and the current. 



The name-plate must also indicate the rating: " Intermittent," or 

 " For hours," or " Continuous." 



GREAT BRITAIN. Unless otherwise stated, the output is to 1>- 

 sidered to apply to continuous working. In the case of intermit tint 

 rating the word " Intermittent " is to be added. 



The name-plate shall also indicate: For generators: K\v., 

 amperes, rev. per min. For motors: B.h.p., volts, amperes, rev. per 

 min.; B.h.p (Intermittent), volts, amperes, rev. per min. 



SWEDEN. Unless otherwise stated, the output shall be considered as 

 applying to continuous working. 



The values stated on the name-plate shall be in conformity with the 

 rules, except it bear the indication " For special purposes." 



The following information to be stated: For generators: the kilowatts, 

 volts, amperes, and revs. per minute. For motors: the mechanical power, 

 the volts, amperes, and revs, per minute. 



N. B. The speed shall be the speed with the machine hot. and a tolerance of 7% shall 

 be allowed. 



The service, adding the words: " For continuous service." " For 

 Intermittent service." 



For variable service, the respective limits shall be given. 



UNITED STATES. Name of the maker, volts, amperes. 



When practicable, the kilowatts, the revs, per minute, the type, the 

 character of current, designation and serial number. 



COMMUTATION 



BELGIUM. Under all conditions not exceeding the rated load, the 

 commutator of a machine shall not require to be cleaned or given other 

 attention more than once a day, with the brushes remaining in the most 

 favorable position. 



FRANCE. 



Union dfs Syndicate de L'ElectriciU. Under all loads included in 

 running free up to the rated load, the brushes being ground and fixed 

 in the most favorable position by means >f a previous run, machines with 

 a commutator must be capable of working for the period of the test 

 (specified under Heating: Duration of Test,) without it being necessary 

 to glass-paper the commutator or resort to any other method of cleaning. 

 Association Alsacienne. Unless otherwise specified, when once the 

 brushes have been adjusted in the most favorable position, machines 

 with commutators shall be capable of working, without appreciable 

 sparking or adjustment of brushes, at all loads from no load to rated 

 load, even with sudden changes of current. 



