Section 272-8-003 - Use: Initiation of Explosive Charges003.01 When fuse is used, the blasting cap shall be securely attached to the safety fuse, with a standard type cap crimper. All primers shall be assembled at least 50 feet from any magazine.003.02 Primers shall be made up only as required for each round of blasting.003.03 No blasting cap shall be inserted in the explosives without first making a hole in the cartridge for the cap with an approved punch of proper size or with a standard cap crimper.003.04 Explosives shall not be extracted from a hole that has once been charged or has misfired unless it is impossible to detonate the unexploded charge by the insertion of a fresh additional primer. This work shall be done by or under the supervision of a competent and experienced person.003.05 If there are any misfires while using the cap and fuse, all persons shall remain away from the charge for a least 30 minutes. If electric blasting caps are used and a misfire occurs, this waiting period may be reduced to 15 minutes. Misfires shall be handled under the direction of the person in charge of the blasting and all wires shall be carefully traced and a search made for unexploded charges. Shock tube and miniaturized detonating cord initiating systems shall wait 15 minutes for misfires.003.06 Blasters, when testing circuits to charged holes, shall use only blasting galvanometers or other instruments specially designed for this purpose.003.07 Only the person making leading wire connections in electrical firing shall fire the shot. All connections shall be made from bore hole back to the source of firing current, and the leading wires shall remain shorted and not be connected to the blasting machine or other source of current until the charge is to be fired. Only blasting machines or initiators that meet the explosive manufacturers recommendations and approval should be used as a source of electric current for initiating electrically fired charges of explosives.003.08 Before a blast is fired, a loud warning signal shall be given by the person in charge who has made certain that all surplus explosives are in a safe place, all persons and vehicles are at a safe distance or under sufficient cover, and that an adequate warning has been given.004 Every holder of any storage, purchase, or use permit required under § 28-1213 to § 28-1239 shall notify the fire protection district in which any explosive is being used or stored, and the holder shall keep a written record describing the time the notice was given, office in the district to which the notice was given and name of the person in the district notified. This notification shall be made for existing use or storage sites and newly established sites, including job sites.
272 Neb. Admin. Code, ch. 8, § 003