01486nam 2200373 450 991070454440332120130506081338.0(CKB)5470000002442262(OCoLC)841760154(EXLCZ)99547000000244226220130506d2011 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierSuitability, safety and performance of circuit breakers[Arlington, Virginia :U.S. Department of Labor, Mine Safety and Health Adminstration],2011.1 online resource (5, 10 pages) color illustrationsProgram policy letter ;no. P11-V-16Title from subject line (viewed on May 6, 2013)."Effective Date: 06/20/2011, Expiration Date: 3/31/2013 (Reissue of P10-V-8)."Electric circuit-breakersSafety regulationsUnited StatesElectric circuit-breakersMaintenance and repairMine safetyEquipment and suppliesSafety regulationsUnited StatesElectric circuit-breakersSafety regulationsElectric circuit-breakersMaintenance and repair.Mine safetyEquipment and suppliesSafety regulationsGPOGPOBOOK9910704544403321Suitability, safety and performance of circuit breakers3343466UNINA