[D8361ZBX], Letter from William Symes Andrews to Thomas Alva Edison, August 7th, 1883
https://edisondigital.rutgers.edu/document/D8361ZBX
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Metadata
- Title
- [D8361ZBX], Letter from William Symes Andrews to Thomas Alva Edison, August 7th, 1883
- Editor's Notes
- [INTERESTING FOR ISSUE OF DESIGNING 3-WIRE CONDUCTOR SYSTEM. hard to read under extensive TAE marg] Seems to be problem with connections. Your suggestion of extending 3-wire system in the sercies has been foretalled; Hannington's men have done it two or three places. What's right percentage of loss to allow---they seem too large. TAE marg: "We do not have more than 1 percent drop in service, but they can be calculated for maxijmum lamps used & not for all the lamps actually in but never used simultaneously on 3 wire system service. Calculate as if there were 2 lamps in series, or 4 times less copper, then add the middle wire= There is [-----] in wire of 62.5pct if 2nd wire was not used that would be required 1/4 the amount of copper as in regular service 4 lamps on 3 wire counts as one as against regular service."
- Author
- Andrews, William Symes
- Recipient
- Edison, Thomas Alva
- Mentioned
- Hanington, Charles F
- Date
- 1883-08-07
- Type
- Letter
- Folder ID
- D8361-F
- Microfilm ID
- 70:370
- Document ID
- D8361ZBX
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 70
- License
- CC0 1.0 Universal