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Development of a Nonprimary-explosive, Low-voltage Electric Detonator for Use in Mining Operations.
Ritter PB; Day EA
NTIS: PB 280 032 Available for Reference At Bureau Libraries :59 pages
The feasibility of redesigning and adapting the all-secondary- explosive, low-voltage, electric safe detonator for use as a delay detonator was demonstrated. Operational characteristics were adjusted to allow direct competition of safe delay detonators with commercial delay blasting caps. Five experimental delay period models were developed and tested. Test results are given and evaluated. Subsequent simplified and improved designs for practical and economical mass production are described. Design concepts to meet Bureau of Mines voltage withstand, incendivity, and spark sensitivity requirements are included. Recommendations are made for experimental procedures to ready the safe-delay detonator for mass production and extensive use in mining and other industries.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB 280 032 Available for Reference At Bureau Libraries
Systems, Science, and Software
Page last reviewed: October 29, 2021Content source: National Institute for Occupational Safety and Health Education and Information Division