| Issue |
MATEC Web Conf.
Volume 389, 2024
11th International Symposium on Occupational Health and Safety (SESAM 2023)
|
|
|---|---|---|
| Article Number | 00014 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/202438900014 | |
| Published online | 10 January 2024 | |
Aspects of compatibility regarding the pre-1990 blasters with new categories of electric detonators
National Institute for Research and Development in Mine Safety and Protection to Explosion – INSEMEX, 32-34 G-ral Vasile Milea street, 332047, Petroșani, Hunedoara county, Romania
* Corresponding author: dangabor@insemex.ro
In Romanian mining operations for the initiation of electric detonators are still used blasters manufactured before 1990. These blasters were designed and built for the initiation of electric detonators using the requirements of obsolete standards. For simultaneous initiation of a large number of electric detonators, sufficient electrical power must be supplied to all detonators within milliseconds. The time required to heat up the bridgewire until the fusehead deflagrates is a function of the voltage and the current. In order to be able to use old generation blasters for the initiation of new generation of electric detonators (that are built according to new national and European standards) a comparative analysis must be made between the requirements of the pre-1990 standards and the new standards in use.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.