New Hampshire Code of Administrative Rules
Saf - Department of Safety
Subtitle Saf-C - Commissioner, Department of Safety
Chapter Saf-C 1600 - EXPLOSIVES
Part Saf-C 1630 - BULK DELIVERY AND MIXING VEHICLES FOR BLASTING AGENTS
Section Saf-C 1630.04 - Static-Sensitive Systems

Universal Citation: NH Admin Rules Saf-C 1630.04

Current through Register No. 40, October 3, 2024

(a) Pneumatic loading from bulk delivery vehicles into blast holes primed with electric blasting caps or other static-sensitive systems shall conform to the requirements of this section.

(b) A positive grounding device shall be used to prevent the accumulation of static electricity.

(c) A discharge hose shall be used that has a resistance range that will prevent conduction of stray currents, but which is also conductive enough to bleed off static buildup.

(d) A person familiar with such systems shall evaluate all systems to determine if they will adequately dissipate static electricity under potential field conditions.

#2220, eff 12-31-82; ss by #2837, eff 8-27-84; ss by #4584, eff 3-3-89; ss by #5996, INTERIM, eff 3-3-95, EXPIRES, 7-1-95; ss by #6054, eff 7-1-95, EXPIRED: 7-1-03

New. #8116, INTERIM, eff 7-14-04, EXPIRES: 1-10-05; ss by #8231, eff 12-20-04

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