Accession Number:

AD0620584

Title:

DEVELOPMENT OF A METHOD OF OBTAINING A UNIFORM ABRASION TEST FOR AIRCRAFT ELECTRICAL CABLE,

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1948-02-03

Pagination or Media Count:

15.0

Abstract:

The trend toward electrical cable without an outer covering of braid over the primary insulation has emphasized the need for a suitable cable abrasion test which will give comparable results on repeated tests, and will be an accelerated test, simple and practical in operation. The investigation to achieve this goal resulted in a machine which meets these requirements, which provides a uniform abrasive surface that will not become clogged with detritus, which automatically stops when the cables insulation is worn through to the conductor, and which is equipped with a counter for measuring the length of abradant tape necessary to achieve failure of the cable. Results of abrasion tests of cable conducted on this machine indicate a lack of uniformity of the cable protective coating and of concentricity of the cables insulation. It is believed, however, that sufficient information was secured to provide a basis for an abrasion test to be incorporated in aircraft cable specifications. This test method is not aimed to forecast the service life of the cable it is intended, rather, to be used as a means of comparing the abrasion resistance of various types of cable insulation. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE