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Metal and Nonmetal National Mine Rescue Contest Rules

Metal and Nonmetal National Mine Rescue Contest Rules

Metal and Nonmetal National Mine Rescue Contest Rules

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must be made with the tester be low the waist. Car bonmon ox ide (CO) is slightly lighter than air so this testmust be made at chest height.3. Self-explanatory.4. Teams trav el ing ob vi ously faster than a nor mal walk (ama jor ity of judges must con cur on this) shall be dis -counted.5. Do not hes i tate to as sess this dis count; how ever, ex plain<strong>and</strong> name un au tho rized per son on dis count card <strong>and</strong>state in struc tions given, if known.6. Stoppings, doors, reg u la tors, <strong>and</strong> bar ri cades re quire con -struc tion of tem po rary stoppings by a team be fore ateam may make open ings in the pre-existing stoppings,doors, etc. Doors shall not be opened with out priorknowl edge of the ef fects of the mine ven ti la tion sys tem,un less a tem po rary stop ping has been erected. Reg u la -tors shall not be opened with out prior knowl edge of theef fects of the mine ven ti la tion sys tem, un less a tem po -rary reg u la tor has been erected. This does not ap ply toex ist ing check or drop cur tains used to di rect the air cur -rent. When re treat ing out of a bar ri cade or com ing backthrough a stop ping where an air lock has been erected, itwill not be nec es sary to air lock on the way out, if thiswill not change any ex ist ing ven ti la tion.7. Dur ing a ven ti la tion change, a cur tain that di rects air -flow is re quired to be up graded to a tem po rary bar ri -cade, seal, or stop ping <strong>and</strong> must be fas tened at top <strong>and</strong>sides.8. This does not ap ply to check ing mine en trances prior towork ing the prob lem.9. Teams must in form the of fi cial in charge be fore chang -ing the ven ti la tion or elec tric power, <strong>and</strong> such things asex plo sive gases <strong>and</strong> the safety of trapped min ers <strong>and</strong>res cue per son nel must be con sid ered. Teams do nothave to exit the mine to change power or ven ti la tion.Teams can in form the fresh air base at ten dant by ap -33

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