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Recommended Acceptance Criteria for Potting Materials Used in Explosion Proof Enclosures in Coal Mines.
Herrera-WR; White-RE; Adams-LE; Silvus-HS
NTIS: PB/83-254722 :100 pages
Research was conducted to develop methodology for evaluating candidate potting materials intended for use in explosion-proof enclosures. The primary purpose was to develop acceptance guidelines based on arc decomposition products. Acceptance criteria can be based on (1) inherent thermochemophysical, mechanical, and electrical properties; (2) arc decomposition products (nature of volatile products produced; e.g., flammability, explosivity, synergistic effects on existing environment in the enclosure, and toxicity; and quantity produced as a function of arc power and duration); and (3) acceleration aging tests to evaluate breakdown under electrical stress.
CP; Final Contract Report;
NTIS Accession No.
Southwest Research Inst.
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division