The Electrical Review, Том 147IPC Electrical-Electronic Press,., 1950 |
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Сторінка 48
... circuit breakers . Climatic conditions in Canada have necessitated involved design modifications to cope with temperatures down to minus 40 deg C. The actuation of circuit - breakers pre- sents a number of special problems in mechanical ...
... circuit breakers . Climatic conditions in Canada have necessitated involved design modifications to cope with temperatures down to minus 40 deg C. The actuation of circuit - breakers pre- sents a number of special problems in mechanical ...
Сторінка 744
... circuit conditions has assumed much greater importance in recent years on account of the general development of bulk supply and the enormous power now available from the grid . The present - day values of cable short circuit ratings ...
... circuit conditions has assumed much greater importance in recent years on account of the general development of bulk supply and the enormous power now available from the grid . The present - day values of cable short circuit ratings ...
Сторінка 765
... circuit to an unbalanced circuit . 11th August , 1947. ( 647060. ) 22880. Anglo - Iranian Oil Co. , Ltd. , and Beaumont , F. N. Apparatus for electric arc welding of pipes and like articles . 27th July , 1948. ( 647157. ) 23509 ...
... circuit to an unbalanced circuit . 11th August , 1947. ( 647060. ) 22880. Anglo - Iranian Oil Co. , Ltd. , and Beaumont , F. N. Apparatus for electric arc welding of pipes and like articles . 27th July , 1948. ( 647157. ) 23509 ...
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