Bureau of Mines ground-fault protection research program

a summary
  • 23 Pages
  • 3.57 MB
  • 588 Downloads
  • English
by
Dept. of the Interior , Washington, DC
Mining machinery -- Electric equipment -- Safety measures, Electric relays., Electric s
Statementby Michael R. Yenchek and A. J. Hudson.
SeriesInformation circular (United States. Bureau of Mines) -- 9260.
ContributionsHudson, A. J.
Classifications
LC ClassificationsUSBMIC#9260 1990
The Physical Object
Paginationii, 23 p. :
ID Numbers
Open LibraryOL22070293M
LC Control Number90-1697

Additional Physical Format: Online version: Yenchek, M.R. (Michael R.). Bureau of Mines ground-fault protection research program. Washington, D.C.: U.S. Dept. of the.

Download Bureau of Mines ground-fault protection research program FB2

The final report for Phase 3 of Bureau of Mines Contract concerns the research and development of a coordination-free relay for ground-fault protection in mine power distribution systems. The dynamic nature of distribution systems used in coal mines makes it difficult.

The Bureau of Mines ground-fault protection research program: a summary / (Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, Book producer, and San Francisco Risdon Iron and Locomotive Works (page images at HathiTrust) The Bureau of Mines ground-fault protection research program: a summary / (Washington, D.C.

@article{osti_, title = {Evaluation of sensitive ground-fault interrupters for coal mines.

Details Bureau of Mines ground-fault protection research program PDF

Information Circular/}, author = {Yenchek, M.R. and Ackerman, M.N.}, abstractNote = {Contacts with energized conductors are a major cause of electrocutions in underground coal mines. Sensitive ground-fault interrupters (GFI's) installed on in-mine three-phase ac utilization circuits would.

Bureau of Mines: The Bureau of Mines ground-fault protection research program: a summary / (Washington The National Bureau Of Mines is a research, development, information, and analysis agency.

Our mission is to promote safety in mining through an extensive. Ground-Fault Protection on Construction Sites. U.S. Department of Labor Alexis M. Herman, Secretary Occupational Safety and Health Administration Charles N.

Jeffress, Assistant Secretary OSHA (Revised) This informational booklet is intended to provide a generic, non-exhaustive overview of a particular standards-related topic. As an outgrowth of this problem, the Bureau of Mines initiated a major research program to investigate ground check monitors and grounding systems.

In the early stages this program was limited to underground grounding systems; however, as problems arose in the monitoring of grounding circuits in surface mines, research was also conducted on. Full text of "Guide to substation grounding and bonding for mine power systems" See other formats IC Bureau of Mines Information Circular/ Guide to Substation Grounding and Bonding for Mine Power Systems By Wils L.

Cooley and Roger L. King UNITED STATES DEPARTMENT OF THE INTERIOR iju(u Iqm pctijoa^^ &J //1t~ " i &J> / /lnii4. ^ /7 y\ c?)/7tjce}y>: i4.t t -4>^ ^^ L ; Information.

The direct results on the mining industry of the research program sponsored by the US Bureau of Mines over the last decade and a half include increased safety, increased productivity, a better. Through research conducted by the U.S. Department of Interior, Bureau of Mines[5], the most reliable and accurate method for determine the earth electrode File Size: 66KB.

Ground Fault Protection Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Showing all 1 result. An electrician is a tradesman specializing in electrical wiring of buildings, transmission lines, stationary machines, and related equipment.

Electricians may be employed in the installation of new electrical components or the maintenance and repair of existing electrical infrastructure. Electricians may also specialize in wiring ships, airplanes, and other mobile platforms, as well as data Education required: Apprenticeship.

"United States Bureau of Mines" substituted for "Bureau of Mines" in subsec. (a)(4) pursuant to section 10(b) of Pub. –, set out as a note under section 1 of this title. For provisions relating to closure and transfer of functions of the United States Bureau of Mines, see Transfer of Functions note set out under section 1 of this title.

RESEARCH Review of the region's seismic history, based on existing maps and technical literature. Specific to Fault Rupture Hazard: a. Historic earthquakes, epicenter locations, and magnitudes in the vicinity of the site. Location of fault traces that may affect the File Size: KB.

1 In percent. Based on these data, percent of the mines for these 16 occupations had an average full-shift exposure of less than mg/m 3, 19 percent were between and mg/m 3, 11 percent were between and mg/m 3, and 30 percent were greater than mg/m 3.

The significance of these results is that 40 percent of the mines for the specified occupations had an average full. OSHA requires that employers shall use either ground fault circuit interrupters (GFCI) or an assured equipment grounding conductor program to protect personnel from electrical shock while working.

SHECO Services shall use GFCI’s in lieu of an assured grounding Size: 93KB. In § (b)(3)(ii), OSHA is extending the ground-fault protection requirement to temporary receptacles used in construction-like activities performed in general industry.

At the same time, this final rule extends protection to temporary wiring receptacles of higher voltage and current ratings (such as volt, single-phase, ampere and. Respirator protection factor and fitting test- qualitative and quantitative fit test will be used to determine the fit. APPROVED RESPIRATORS.

The only respirators that are to be used in this program shall be respirators that: 1. Are approved by NIOSH or MSHA or U.S. BUREAU. Ground-fault protection on construction sites. (Washington, D.C.: U.S. Dept. of Labor, Occupational Safety and Health Administration, ), by United States.

Occupational Safety and Health Administration (page images at HathiTrust) Ground-fault protection on construction sites. A GUIDE TO RESPIRATORY PROTECTION FOR THE ASBESTOS ABATEMENT INDUSTRY A Technical Report by Gary P.

Noonan Herbert I. Linn Laurence D. Reed U.S. Department of Health and Human Services Public Health Service Centers for Disease Control National Institute for Occupational Safety and Health Division of Safety Research Morgantown, West Virginia for U.S.

Environmental. proper ground‐fault protection practices. Ground‐fault Protection for Construction Sites According to the National Institute of Safety and Health, the most frequently cited Occupational Safety and Health Administration (OSHA) electrical violation is improper grounding of equipment or Size: KB.

Ground-Fault Protection on Construction Sites This booklet is intended to help employers and employees respon-sible for electrical equipment provide protection against volt electrical hazards on the construction site—the most common being ground fault electrical shock—through the.

The protection that ground grids provide against step and touch potentials is only good up to the expected level and duration of ground-fault currents, as originally communicated by the electric. (5) The Commonwealth must maintain a strong, independent mine safety program.

(6) The operators at underground bituminous coal mines, with the assistance of certified miners and mine officials have the primary responsibility to prevent the existence of unsafe and unhealthful conditions at underground bituminous coal mines. This configuration could defeat ground-fault protection and result in hazardous voltage on equipment frames.

A single window-type current transformer must be used to provide the ground-fault protection required by paragraph (a)(4)(i) for circuits extending from.

Whenever a ground fault detector indicates a ground fault, field technicians must assume that conductors or equipment are damaged and need repair.

Unless extensive field testing shows that no fault exists, the only safe assumption is that damage has occurred and there is an existing electrical hazard to the system and repair is Size: KB.

Description Bureau of Mines ground-fault protection research program EPUB

Respiratory Protection – Respiratory protection devices, approved by the U.S. Bureau of Mines, should be worn by employees exposed to hazardous concentrations of toxic or noxious dust, fumes or mists as required by OSHA.

The Hazard Communications Program. FEDERAL MINE SAFETY AND HEALTH ACT OF [Public Law 91–] [As Amended Through P.L. –, Enacted Aug ] AN ACT To provide for the protection of the health and safety of persons working in the coal mining industry of the United States, and for other purposes.

To link to this object, paste this link in email, IM or document To embed this object, paste this HTML in website. Employers must provide either ground-fault circuit interrupters (GFCIs) or an assured equipment grounding conductor program to protect employees from ground-fault hazards at construction sites.

and scaling. Bureau of Mines- approved cap lights shall be acceptable for use in the tunnel heading) General construction plant and shops (e. Saber Power Services Saber Power Ln Rosharon, TX USA ()   Adria Manufacture, a manufacturer of medium and low-voltage equipment such as portable substations, monobloc skid mounted substations, and control and protection panels for underground mining and power station applications, will be exhibiting at MINExpo International, taking place in Las Vegas, Nevada, US, on the September The issue of PotashWorks magazine features updates on the BHP Jansen Potash Project, Canpotex's commitment to the highest safety standards, and more.