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Document ID (ISN)19215
CIS number 73-830
ISSN - Serial title 0409-2961 - Bezopasnost' truda v promyšlennosti
Year 1972
Convention or series no.
Author(s) Abramov V.F., Emekeev V.I., Šelehov P.Ju.
Title The accumulation of static electricity in the pneumatic charging of boreholes with granular explosives
Original title Statičeskaja ėlektrizacija pri pnevmozarjažanii vzryvnyh polostej rossypnymi VV [in Russian]
Bibliographic information June 1972, No.6, p.35-37. Illus.
Abstract The transport of granular explosives and the placing of these explosives in boreholes may give rise, under certain conditions, to the accumulation of electrostatic charges, the extent of which is dependent on the type of contact (impact or friction) with the inside wall of the piping. The highest level of static charging was encountered following impacts. Experiments have shown that the conductivity of plastics or rubber piping varies in relation to the atmospheric humidity; the highest variation having been found in rubber, and the lowest in PVC. As for rock conductivity, the authors found that at their normal levels electrostatic charge is dissipated immediately.
Descriptors (primary) static electricity; mining industry; loading and stemming
Descriptors (secondary) safety engineering; explosives; USSR; plant safety and health organization; notification of accidents and diseases; causes of accidents; comment on law; health engineering
Document type -
Subject(s) Mines and quarries
Broad subject area(s)
Browse category(ies) Electricity
Mining and quarrying