LONG DISTANCE INCANDESCENT LIGHTING SYSTEM.
The following description of a remarkable electric plant operating forty miles of line wire circuits has been sent to FIRE AND WATER :
Early in the spring of 1887 the electric light company of Salt Lake City and that of Ogden City decided to start the incandescent light business in connection with their arc plant. Having tried the multiple series as well as the accumulator, without being able to obtain results which satisfied them, they entered into communication with all prominent electric light manufactories in search of a suitable system. The claims of the Heisler Electric Light Company impressed them, and the president of both companies, David Walker, and the manager of the Ogden company, Major V. M. Silva, went to St. Louis, in order to inspect the practical working of the apparatus. The following letter of Mr. Walker, sent to a New York gentleman, refers to his visit and the investigation made, and explains the result :
“ I examined the Heisler system myself personally in St. Louis for c^er two weeks, and I saw nearly 1000 thirty candle-power lights running on a circuit of over twenty miles, and I also talked with a number of customers night after night in the absence of Mr. Heisler or anyone in his interest, and all spoke of it in the highest terms. I also visited the St. Louis Illuminating Company’s station, where the Heisler system is used, a number of times and examined the machine critically, and found no sparkling or heating at the commutator or any part of the machine.”
Mr. Walker states his reasons for adopting the system as follows:
“ iI adopted the Heisler long distance incandescent system, because that company guarantees seven thirty candle-power lights per horse-power. 2. They guarantee that the light of said lamps continues full thirty candle-power during the full life of the lamps. 3. The lamps can be placed at a long distance from the station at small cost for copper conductors, they only running a No. 9 B. & S. gauge wire, even when the lights are miles away from the dynamo. For one of the companies of which I am president, the Ogden Electric Light Company, we are going to place the dynamo at Ogden canon to run by water-power, which is over six miles away from the city of Ogden, where most of the lights will be needed, and the Heisler Electric Light Company guarantees that the loss will be very small. The size of the wire we will use will be No. 9. The circuit for that city will be over twenty miles.”
Dynamos of about 800 fifteen candle-power capacity were ordered for each of the stations. On August 10 The Ogden City Daily Tribune reports an interesting test made in the electric light works in Ogden canon of the candle-power of the lights, giving an exact description of the photometer used, and stating as the final result that the thirty candle-power lamps indicated thirty-one candle-power. A careful estimate of the length of the circuits was made, and it was found that it was a little over thirty-five miles long, counting the line wires from the canon and the wire in the buildings. This makes it the longest incandescent light circuit in the world so far as known. Mr. Walker stated that the wire alone for any other system would cost $50,000 if they used as many miles as was used in the circuit.
The following extract of a letter dated September 6, 1888, gives an account of the success of the system after twelve months of practical operation :
OGDEN, UTAH, September 6, 1888.
TheHeislerElectric Light Company, St. Louis, Mo.:
Gentlemen—In reply to yours of August 21, 1888, I beg to say that the Heisler Long Distance System of Incandescent Lighting, which l have adopted, is giving our customers good satisfaction. Wc are using near 400 thirty candle-power lights on our dynamo, and with good results. We ran over twelve months without interruption worth speaking of. The lights are brilliant, and maintain their guaranteed candle-power and the full life of the lamps.
Wc tested the dynamo, and found it worked up to the capacity you guaranteed—namely 340 thirty candle-power lights, and also tested the candle-power of the lamps, and each proved fully thirty candle-power. In fact, we find the system reliable and the light vety brilliant, a beautiful color, and everything equal to your representation and to our entire satisfaction. The benefits of this wise selection have come in the shape of dividends. The incandescent plant has been a financial success from the start.
Very truly yours,
DAVID F. WALKER,
President of the Ogden City Electric Light Co.