RM1XG OF ELECTRICAL MACHINERY 51 



GERMANY. The tests, when possible, are to be carried out at the works 

 of the manufacturer. They are not to tw repeated e*cept in very e. 

 nal cases. For large machine* the test is to be repeated, tm >i/. 

 h. ma. ; actual servtce. 



tie carried out h.r M 



capable of withstanding, dunng fivr minutes, a pressure JO per c 

 excess of the rated pre 



M llMIMIN. 



SWRI>RK. The test to be earn. ! ..tii 



IN In gnu : Ihr 



.ul ami 

 Msembl< 



!ry and free from ! 



/j of Application of Iht Vrt>\*rt 



N IKIES. The various rules spc teat pro* 



cd between windings and the frame and between all electric 



,r of tkf 1 



But VMCB. (U WKIIKS. The values of the tact pres- 



mltcated are appl cases in 



is sin 



t* mtrn.i :>t work ! 



;>rc*sure shall be u specified. 



riding* it .nng current work *e 



itinuous current, the test pressure shall be 1.4 times that 

 spa Uk '. 



.tor employed for the test shall be as 

 m-.irlv .is pCM toll I lM 99199 



GREAT BRITAIN. 



is. The test is to be carried out with alternating t * 

 at the normal frrqm-ncy -f the aupar.i 



The values herein given are the root mean square values of the test 

 pressure r< a sine wave form. 



The wave shape of the test pressure should be as nearly as possible 

 sinusoidal, and should not be materially distorted by the testing . 



BELGIUM. 



king Pressure. Test Pressure. 



I..- th.i:. 300 v. 4 times the working pressure + 300 



300- 600 v. - + GOO v. 



600- 1.200v. 2,400 v. 



<K>- 5,000 Twice the working pressure. 



5,000-10,00" The working pressure + 6.000 



At 10.000 v. l.A times the working pressure. 



FRANCE. 



Rated Pressu Tot 



Up to 5,000 v. 



Prom 5,000-10.000 v. 

 Aln KK)v. 



Up to 5.000 v. 



From 5.000-10.000 v. 

 Above 10,000 v. 



(Twice the rated pressure 

 minimum of IK' 

 ure + 5.000 



1.5 times rated presst: 



(Three times the rated pressure with 

 minimum of 500 

 Rated pressure + 10.000 v. 

 Twice the rated 



