A New Construction of Halogen-Free Flame Retardant Insulated Wire with Double Layers

Abstract

To protect peripheral equipment from corrosive gaseous HC1 and prevent formation of black smoke and toxic gases during combustion of halogen compounds, a few halogen-free materials with highly flame retardant properties have so far been studied for cable use in nuclear power plants, underground railways and ships. For internal wiring in appliances, however, halogen-free insulated wires that pass the flame test of UL Std.62 VW-1 have not been developed. Flame retardant XL-PVC or XL-FRPE insulated wires now in use produce halogen gases when the wires are used at high temperature for a long term, thereby corroding the periphery equipment. Amplifier relay circuits, which are liable to excessive temperature rise, pose an especially difficult problem.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1982
Accession Number
ADP000590

Entities

People

  • Atuo Sato
  • Hiroyuki Nakae
  • Masao Nishimura
  • Shoji Yamamoto
  • Syunichi Fujimura

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Construction
  • Electrical Properties
  • Elongation
  • Flame Retardants
  • High Temperature
  • Materials
  • Materials Science
  • Materials Testing
  • Nuclear Power Plants
  • Polymers
  • Sodium Hydroxide
  • Tensile Strength
  • Test Methods
  • Universities

Fields of Study

  • Physics

Readers

  • Fire Suppression Systems Design.
  • Integrated Circuit Design and Technology.
  • Organic Chemistry

Technology Areas

  • Microelectronics