Accession Number:

AD0656284

Title:

ENJAY BUTYL IN LOW VOLTAGE APPLICATIONS,

Descriptive Note:

Corporate Author:

ENJAY LABS LINDEN N J

Personal Author(s):

Report Date:

1959-01-01

Pagination or Media Count:

30.0

Abstract:

A considerable amount of rubber is used to insulate power and communication wire designed for service under 600 volts. Two promising butyl compounds, one black and one light colored, have been developed to meet these service requirements. Composition data and properties are shown in Table I. The black compound 1 meets initial physical and electrical requirements for low voltage block telephone ringing circuit and power wire insulation, and has proved good long term weatherability. The light compound 2 was developed more recently as color-coded insulation for multiconductor drop pole to house wire. This latter material may be of greater long range importance since it is tougher, snappier, and has better electrical and compression properties. Based on laboratory tests, both of these new materials have demonstrated better electrical properties, superior heat stability, and much lower water absorption than the competitive elastomer jacket compounds currently in use. The butyl compounds also feature a one-step extrusion process which renders them especially attractive in comparison with the two-step insulation-jacket combination process used with other materials. This has been confirmed in successful trials conducted on the butyl formulations in both communications and power wire applications. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Miscellaneous Materials
  • Elastomers and Rubber

Distribution Statement:

APPROVED FOR PUBLIC RELEASE