This paper introduces influence factors on the functioning reliability and the delay precision of stab delay detonators, and provides a way to raise the functioning reliability of the product.
In millisecond blasting, the designed or selected delay time is always different from the real one due to the delay errors of ordinary short delay detonators.
In this paper, the effect of distributive homogeneity of bridge wire resistance on the firing current of electric detonators is studied and the testing results are also analysed and discussed.
A new scheme in increasing safety with methane of permissible MS electric detonators was putted forward hosed on the experiments, results of factors affecting safety with methane.
