Evaluation and determination of sensitivity and electromagnetic interactions of commercial blasting caps.

Thompson, R. H. (Robert Harvey), 1847-1935.

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Evaluation and determination of sensitivity and electromagnetic interactions of commercial blasting caps.

Published Date:

1973

Series:

Open file report (United States. Bureau of Mines) ; 1974-49

Language:

English

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Evaluation and determination of sensitivity and electromagnetic interactions of commercial blasting caps.

Details:

Personal Authors:

Thompson, R. H. (Robert Harvey), 1847-1935.

Corporate Authors:

United States. Bureau of Mines. . Franklin Institute (Philadelphia, Pa.). Research Laboratories. .

Keywords:

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Description:

"Six different types of blasting caps, mainly of the type used in coal mines, were evaluated to determine both their radio frequency and direct current characteristics. Two of the caps were of foreign manufacture. All of the American made caps had "no-fire" (0.1 pct firing probability with 95 pct confidence, as determined by the Bruceton test) levels above 0.04 Watts. One of the caps of foreign manufacture had a "no-fire" level of 0.023 watts. A worst case analysis of blasting cap pickup of radio frequency power in coal mines was performed, and safe distance curves were generated." - NIOSHTIC-2

Final report F-C3102.

NIOSHTIC no. 10010042

Document Type:

Report

Collection(s):

National Institute for Occupational Safety and Health

Funding:

Contract H0210068

Main Document Checksum:

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Supporting Files:

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