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Книги Книги 1 - 10 з 29 у BATTERIES — a. When current for light and power is taken from primary or secondary....
" BATTERIES — a. When current for light and power is taken from primary or secondary batteries, the same general regulations must be observed as applied to similar apparatus fed from dynamo generators developing the same difference of potential. "
Transactions of the American Society of Mechanical Engineers - Сторінка 962
автори: American Society of Mechanical Engineers - 1898
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The Electrical Review, Том 8

1891
...switch so arranged that only one of the circuits can be in use at the same time. CLASS F.— BATTERIES. When current for light and power is taken from primary...batteries, the same general regulations must be observed as apply to such wires fed from dynamo generators, developing the same difference of potential. CLASS...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1892 - 176 стор.
...switch so arranged that only one of the circuits can be in use at the same time. CLASS F. — BATTERIES. When current for light and power is taken from primary...batteries, the same general regulations must be observed as apply to such wires fed from dynamo generators developing the same difference of potential. CLASS G....
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Convention

National Electric Light Association. Convention - 1892
...switch so arranged that only one of the circuits can be in use at the same time. CLASS F. BATTERIES. When current for light and power is taken from primary...batteries, the same general regulations must be observed as apply to such wires fed from dynamo generators, developing the same difference of potential. CLASS...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 128 стор.
...or other device that will immediately cut off the current in case the trolley wires become grounded. This device must be mounted on a fire-proof base and in full view and reach of the attendant. 38. TROLLEY WIRES— a. Must be no smaller than No. o B. & S. copper or No. 4 B. & S. silicon bronze,...
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Electrical Engineer, Том 17

1894
...should be made of the connections and the specific gravity of the solution. Wnen current for lieht and power Is taken from primary or secondary batteries, the same general regulations must be observed as apply to such wires fed from dynamo generators developing the same difference of potential. CLASS Q.—...
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The Electrical Transmission of Energy: A Manual for the Design of Electrical ...

Arthur Vaughan Abbott - 1895 - 586 стор.
...insulated. Frequent examinations should be made of the connections and the specific gravity of the solution. When current for light and power is taken from primary...batteries, the same general regulations must be observed as apply to such wires fed from dynamo generators developing the same difference of potential. 155. Class...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 213 стор.
...50 feet, or 50 volts to the mile between any two points in the earth or pipes therein. Class F. 44. STORAGE OR PRIMARY BATTERIES : — a. When current...batteries, the same general regulations must be observed as apply to similar apparatus fed from dynamo generators developing the same difference of potential....
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...or other device that will immediately cut off the current in case the trolley wires become grounded. This device must be mounted on a fireproof base and in full view and reach of the attendant. (See Definitions). 39. TROLLEY WIRES:— b. Must be well insulated from their supports, and in case...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...or other device that will immediately cut off the current in case the trolley wires become grounded. This device must be mounted on a fireproof base, and in full view and reach of the attendant. (See Definitions.) . 39. TROU.EY WIRES : a. Must be no smaller than No. o, B. & S. copper or No. 4,...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 213 стор.
...or other device that will immediately cut off the current in case the trolley wires become grounded. This device must be mounted on a fireproof base and in full view and reach of the attendant. (See Definitions). 39. TROLLEY WIRES: — a. Must be no smaller than No. 0 B. & S. copper, or No. 4...
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