Current through Register Vol. 54, No. 41, October 12, 2024
Section 211.161 - Detonating cords(a) Detonating cord shall be cut from the supply roll immediately after placement in the blast hole. A sufficient length of downlines shall be left at the top of the blast hole for connections to trunk lines. The supply roll shall be immediately removed from the site. Scrap pieces of detonating cord shall be destroyed after connections are made.(b) A trunk line shall be covered with at least 12 inches (0.30 meter) of earth or sand, unless otherwise authorized by the Department.(c) Detonating cord may not be spliced if the resulting splice will fall within a blast hole.