Accession Number : AD0625901

Title :   CURRENT-RATING TABLES FOR BUNDLED AIRCRAFT CABLES CARRYING CONTINUOUS D-C CURRENTS,

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Schach,Milton

Report Date : MAR 1955

Pagination or Media Count : 26

Abstract : A tabular method for rating bundled cables carrying continuous d-c currents was devised. The tabular method can be applied to any given set of cables, e.g., MIL-W-5086, MIL-W-7072, etc., for a wide range of bundle installation and environmental conditions. The method of computing and compiling the necessary data is explained. An example of one pair of cable-rating and -selection tables is given along with illustrations which show their use in finding the correct cable sizes when the currents are given and in finding the currents when the bundled cables are given. The tables are applied to a number of bundles and the results compared with MIL-W-5088A ratings. The results show that the latter may seriously underload or overload cables in bundles. Application of the proposed rating methods will lead to the lowest cable weight consistent with the safety of the aircraft. It is recommended that the tabular method be applied to several aircraft to gain needed information and experience before incorporation of the tables into the cable-rating specification is effected. (Author)

Descriptors :   (*ELECTRIC CABLES, SPECIFICATIONS), (*AIRCRAFT EQUIPMENT, ELECTRIC CABLES), DIRECT CURRENT, TABLES(DATA), WEIGHT, SELECTION

Subject Categories : Aircraft
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE