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[N137045], Technical Note, Francis Robbins Upton, July 24th, 1880

Title: [N137045], Technical Note, Francis Robbins Upton, July 24th, 1880
Editor's Notes: Testing RR insulation. Fr 509 using a "wire wrapped about one of the conductors and burined about six inches in moist earth." Testing MP lin insulation. Fr 511 lamp carbon resistance. Then back to RR insulation. "There is no certainty in testing on dry rails and sleepers. Method: make as good insulation as is wished to be tested then wet everything and test."
Author: Upton, Francis Robbins
Date: 1880-07-24
Type: Technical Note
Subject: Electric traction; Cables, feeders, and other exterior elements
Folder ID: N137-F
Microfilm ID: 38:507
Document ID: N137045
URL: https://edisondigital.rutgers.edu/document/N137045
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 38
License: CC0 1.0 Universal

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