[D8943AAD], Cost Estimate, United Edison Manufacturing Co, Harry Ward Leonard, October 22nd, 1889

https://edisondigital.rutgers.edu/document/D8943AAD

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Title

[D8943AAD], Cost Estimate, United Edison Manufacturing Co, Harry Ward Leonard, October 22nd, 1889

Editor's Notes

[Enclosure]:#### chart of 2-wire, 3-wire, 4-wire, 5-wire, 6-wire, and 7-wire systems to compare costs with 2 wire system.####[handwriting at bottom]: The pencil figures of the amendments introduced by taking into account the fact that feeders have only 33% of their outsides in their –entrals and that 60% of the copper in a system is generally speaking put into the feeders for 10% and 1% drop. Similar proportions might be presumed to hold for systems with more than 3 wires and in fairness the principle should be retained. On his own premises however Mr. Leonard appears to be correct.####[name mentions: H. Ward Leonard]

Date

1889-10-22

Folder/Volume ID

D8943-F

Microfilm ID

126:697

Document ID

D8943AAD

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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